[Objectives]The paper was to investigate and identify the fungal diseases of wild and red heart kiwifruit in Qiandongnan Prefecture.[Methods]The pathogenic fungi were isolated from diseased leaves and fruits of wild a...[Objectives]The paper was to investigate and identify the fungal diseases of wild and red heart kiwifruit in Qiandongnan Prefecture.[Methods]The pathogenic fungi were isolated from diseased leaves and fruits of wild and red heart kiwifruit by tissue separation method.DNA sequencing was carried out by using the sequence analysis of ribosomal r DNA-ITS region,and molecular evolutionary trees were built by using MEGA 4.0 software.Finally,the pathogenic fungi were classified and identified by combining morphological observation.[Results]The main fungal diseases were anthracnose caused by Colletotrichum gloeosporioides on wild kiwifruit,fruit anthracnose caused by C.acutatum on red heart kiwifruit,leaf soft rot caused by Fusarium incarnatum on red heart kiwifruit,and brown spot caused by Alternaria alternata on red heart kiwifruit.[Conclusions]The study may provide some theoretical basis for the control of kiwifruit diseases in Qiandongnan Prefecture.展开更多
With the development of Internet technologies, Internet Based Information System (IBIS) arises with more advantages: Firstly, it is convenient for users to use owing to the introduction of Internet technologies. Secon...With the development of Internet technologies, Internet Based Information System (IBIS) arises with more advantages: Firstly, it is convenient for users to use owing to the introduction of Internet technologies. Secondly, it benefits greatly the data dissemination and data sharing based on Internet. The most important but not the last is that we can establish the information service network supported by its technologies and the facilities of information highway. So, it would be significant to design IBIS to realize the data collection, sharing and dissemination on Internet. There are many factors affecting regional environment. So it is not easy to realize the integrated environmental monitoring. Given this, we designed the Internet based environmental monitoring information system. By the virtue of the Internet based environmental monitoring information system, the management and storage of environmental monitoring data would be easier, which lays the foundation to actualize the environmental monitoring efficiently.展开更多
Freshwater ecosystems provide a host of services to humanity. These services are now rapidly being lost, not least because of the inability of making the impacts measurable. To overcome this obstacle, assessment frame...Freshwater ecosystems provide a host of services to humanity. These services are now rapidly being lost, not least because of the inability of making the impacts measurable. To overcome this obstacle, assessment frameworks for freshwater ecosystem services are needed. A simple water equivalent framework to assess the ecological services provided by freshwater ecosystems was developed in this study. It translated the occupation of freshwater ecosystem services into biologically freshwater volumes and then compares this consumption to the freshwater throughput, that is, the ecological capacity available in this region. In this way, we use the example of Yangzhou Prefecture, to account the main categories of human occupation of water ecosystem services. The result showed that there is a huge gap between the consumption and the supply of freshwater ecosystem services. This must encourage local government to make land-use and water management decisions both economically rational and environmentally sound.展开更多
Objective This study was to investigate the HIV current situation in Liangshan prefecture, in order to predict prevalence and transmission trends. Methods Region-specific population, behavior, serosurveillence, and po...Objective This study was to investigate the HIV current situation in Liangshan prefecture, in order to predict prevalence and transmission trends. Methods Region-specific population, behavior, serosurveillence, and policy/program data (from 1995 to 2020) were gathered from various local and national organizations and applied to the Asian Epidemic Model (AEM) and used to derive estimates of future HIV prevalence, epidemic trends, and outcomes of intervention strategies. Results The AEM projections for 2020 included increased number of people living with HIV (PLHIV; to 136 617), increased HIV prevalence (2.51%), and 8037 deaths from acquired immunodeficiency syndrome (AIDS) in this region. However, the overall HIV incidence rate (per 10 000) was projected to decline from 27 in 2015 to 22 in 2020, largely due to a predicted decrease in HIV infection rate (per 10 000) from 658 in 2013 to 621 in 2020 among intravenous drug users. In contrast, the cases of HIV infection per i0 000 was projected to increase from 420 in 2010 to 503 in 2020 among men who have sex with men, and from 8 in 2010 to 15 in 2020 among the general population. The predominant risk factor for HIV transmission over the next decade in Liangshan was casual sex. Community-based outreach strategies to reduce injected drug use and casual sex, and to promote condom use, were predicted as effective interventions to decrease HIV transmission. Conclusion Implementation of a comprehensive public health program, with targeting to the region-specific at-risk populations, will help to mitigate HIV/AIDS spread in Liangshan.展开更多
Agricultural intellectual property rights can protect the innovation of agricultural science and technology. Enshi Prefecture is China's important tea-producing area. Its tea industry has become a pillar industry....Agricultural intellectual property rights can protect the innovation of agricultural science and technology. Enshi Prefecture is China's important tea-producing area. Its tea industry has become a pillar industry. The prefecture enjoys a reputation of " world selenium capital",and is the best birthplace of natural selenium-enriched tea. The national geographical indication protection has been implemented for Enshi Yulu Tea,Enshi selenium-enriched tea,Wujiatai Tribute Tea,Hefeng Tea,Mapo Tea,etc. This paper introduces the geographical indication characteristics and agricultural intellectual property protection of the tea in this world selenium capital,analyses the countermeasures for agricultural intellectual property protection,and puts forward some constructive suggestions.展开更多
[ Objective] The study aimed to discuss the temporal-spatial distribution and short-range prediction indicators of hail weather in east central Haixi Prefecture of Qinghai Province. [Method] Using hail data of six sta...[ Objective] The study aimed to discuss the temporal-spatial distribution and short-range prediction indicators of hail weather in east central Haixi Prefecture of Qinghai Province. [Method] Using hail data of six stations in east central Haixi Prefecture from 1960 to 2010, the temporal and spatial distribution of hail weather was analyzed firstly. Afterwards, based on the high-altitude factual data of 30 case studies of hail during 2006 -2010, its high-altitude and ground weather situation and physical quantity field were studied to summarize short-term circulation pattern and shod- range prediction characteristics of hail weather. [ Result] In east central Haixi, hail appeared from April to September, and it was most frequently from May to August. Meanwhile, hail was frequent from 14:00 to 20:00. Among the six stations, hail was most frequent in Tianjun but least frequent in Wulan. Moreover, hail disaster mainly occurred in Wulan and Tianjun. In addition, there were three typos of circulation pattern of hail weather at 500 hPa. Hail mainly occurred under the effect of northwest airflow, and it had shortwave trough, cold center or trough, jet stream core or one of the three. Hail appeared frequently under the situation of upper-level divergence and low-level convergence, and abundant water vapor and water vapor flux convergence at low levels were important conditions for hailing. [ Conclusion] The research could provide scientific references for improving the accuracy of hail forecast.展开更多
As a good mode of getting rid of poverty,poverty alleviation through tourism can transform the advantages of local resources into industrial advantages,mobilize the local economic vitality,and effectively improve the ...As a good mode of getting rid of poverty,poverty alleviation through tourism can transform the advantages of local resources into industrial advantages,mobilize the local economic vitality,and effectively improve the income of farmers.Through the investigation and study of rural poverty alleviation through tourism in Enshi Prefecture,Hubei Province,this paper analyzes the model of poverty alleviation through tourism formed in Enshi Prefecture,and puts forward the corresponding recommendations according to the problems encountered in the process of poverty alleviation through tourism.展开更多
It is not clear how HPV infection is prevalent among Uygur women in Xinjiang Uygur Autonomous Region, China and whether the distribution of HPV infection is related with cervical intraepithelial neoplasia (CIN) inci...It is not clear how HPV infection is prevalent among Uygur women in Xinjiang Uygur Autonomous Region, China and whether the distribution of HPV infection is related with cervical intraepithelial neoplasia (CIN) incidence among them. A study including 883 Uygur women were conducted from 2006 to 2007 in Hetian Prefecture, Xinjiang Uygur Autonomous Region, China.展开更多
Social capital in the form of social resources or social networks is one of the most important livelihood capital of farmers, which can increase the labor productivity of poor households and increase income. It is imp...Social capital in the form of social resources or social networks is one of the most important livelihood capital of farmers, which can increase the labor productivity of poor households and increase income. It is important to explore the reasons underlying the livelihood strategy choices of farmers from the perspective of social capital under China’s rural revitalization strategy. In this study, the Liangshan Yi Autonomous Prefecture, a povertystricken mountainous area in southwestern China, was selected as the case study area, and multivariable linear regression models were constructed to analyze the influence of social capital on livelihood strategies.The results are as follows:(1) Individual social capital had a positive effect on non-agricultural livelihood strategies. On average, with a one-unit increase in individual social capital, the ratio of farmers’ nonagricultural income to total productive income(Income_Rto) increased by 0.002% and 0.062%,respectively. Collective social capital, with the Peasant Economic Cooperation Organization(PECO) as the carrier, had a negative effect on the non-agricultural livelihood strategies of farmers;on average, with a oneunit increase in PECO, Income_Rto decreased by approximately 0.053%. However, this effect was only significant in the river valley area.(2) The income differences among the different livelihood strategy types were explained by the livelihood strategy choices of farmers. As non-agricultural work can bring more benefits, the labor force exhibited one-way migration from villages to cities, resulting in a lack of the subject of rural revitalization. It is necessary to implement effective measures to highlight the role of PECO in increasing agricultural income for farmers. Finally,based on the above conclusions,policy recommendations with respect to livelihood transformation of farmers and rural sustainable development are discussed.展开更多
By studying current seedling production in Honghe Hani and Yi Nationality Autonomous Prefecture, tropical and subtropical urban landscape plant production in southwest China was analyzed. Local nurseries total 6.40 km...By studying current seedling production in Honghe Hani and Yi Nationality Autonomous Prefecture, tropical and subtropical urban landscape plant production in southwest China was analyzed. Local nurseries total 6.40 km 2 , accounting for 5.1% of total constructed land area in the prefecture, and only 0.02% of the total land area in the prefecture. Application of local plant species in landscape engineering and green coverage ratio lags far behind the indexes of Chinese livable city and indexes of relieving urban heat island effect. By making proper policies and measures, seedling production can be promoted, rare and endanged wild plant species should be fully used to construct garden city, control PM2.5 and protect the living environment.展开更多
Landscape is a dynamic phenomenon that almost continuously changes. The overall change of a landscape is the result of complex and interacting natural and spontaneous processes and planned actions by man. However, num...Landscape is a dynamic phenomenon that almost continuously changes. The overall change of a landscape is the result of complex and interacting natural and spontaneous processes and planned actions by man. However, numerous activities by a large number of individuals are not concerted and contribute to the autonomous evolution of the landscape in a similar way as natural processes do. There is a well-established need to detect land use and ecological change so that appropriate policies for the regional sustainable development can be developed. Landscape change detection is considered to be effectively repeated surveillance and needs especially strict protocols to identify landscape change. This paper developed a series of technical frameworks on landscape detection based on Landsat Thematic Mapper (TM) Data. Through human-machine interactive interpretation, the interpretation precision was 92.00% in 1986 and 89.73% in 2000. Based on the interpretation results of TM images and taking Yulin prefecture as a case study area, the area of main landscape types was summarized respectively in 1986 and 2000. The landscape pattern changes in Yulin could be divided into ten types.展开更多
Chiba Prefecture is located in the east of Tokyo Metropolis. A large scale development of industrial and residential areas began in the late 1950s until then the main industries of the prefecture were agriculture and ...Chiba Prefecture is located in the east of Tokyo Metropolis. A large scale development of industrial and residential areas began in the late 1950s until then the main industries of the prefecture were agriculture and fisheries. During the past 30 years rapid industrialization and urbanization took place resulting in occurrence of various environmental problems.In an attempt to establish a better environment condition towards 21st century Chiba Prefecture has made Environmental Plan which all the municipal governments, enterprises and inhabitants should observe to realize better environment.展开更多
Based on the dynamic observation of Xylotrechus quadripes Chevrolat for consecutive three years, the living habits and damage status of X. quadripes in Dehong Prefecture, Yunnan Province were cleared, to provide the b...Based on the dynamic observation of Xylotrechus quadripes Chevrolat for consecutive three years, the living habits and damage status of X. quadripes in Dehong Prefecture, Yunnan Province were cleared, to provide the basis for its prevention and control. The results showed that the larvae and pupae of X. quadripes occurred from April to September in Dehong Prefecture;the adults occurred from September to November;the eggs occurred from December to March of the next year. Different measures could be adopted according to different periods, so as to achieve the best control effect.展开更多
This study investigated the linkages between river water quality and land use in river catchments in Yama- guchi Prefecture, the western Japan, in order to examine the effect of land use changes of both entire catchme...This study investigated the linkages between river water quality and land use in river catchments in Yama- guchi Prefecture, the western Japan, in order to examine the effect of land use changes of both entire catchment and buffer zone on river water quality. Dissolved Oxygen (DO), pH, Biological Oxygen Demand (BOD), Suspended Solids (SS), Escherichia coli, Total Nitrogen (TN) and Total Phosphorus (TP) were considered as river water quality indica- tors. Satellite images were applied to generating the land use map. Multiple regression model was applied to linking the changes in the river water quality with the land uses in both entire catchment area and buffer zone. The results in- dicate that the integrative application of land use data from the entire catchment and the buffer zone could give rise to more robust model to predict the concentrations of Suspended Solids (r2=0.88) and Total Nitrogen (r2=0.90), rather than models which separately considered land use data in catchment and buffer zone.展开更多
Based on the statistical data of daily precipitation in 14 meteorological stations of Ganzi Prefecture from 1960 to 2011, the temporal variation characteristics of precipitation in Ganzi Prefecture in nearly 50 years ...Based on the statistical data of daily precipitation in 14 meteorological stations of Ganzi Prefecture from 1960 to 2011, the temporal variation characteristics of precipitation in Ganzi Prefecture in nearly 50 years were studied. The results showed that in Ganzi Prefecture, annual precipitation showed an increasing trend, and averaged 659 mm in nearly 50 years, mainly varying from 550 to 750 mm. In a year, precipitation was mainly distributed in summer and autumn, and the precipitation in summer and autumn accounted for 83% of annual precipitation. Seen from the interdecadal variation of annual precipitation, annual precipitation in Ganzi Prefecture showed an increasing trend in different decades in nearly 50 years. It continued to increase from the 1960s to the 1990s. It increased most greatly from the 1970s to the 1980s but decreased slightly from the 1990s to the 2000s.展开更多
s—This paper generalizes land use development in Liaocheng Prefecture, Shandong Province, China; describes land use changes during different period of time; and analyzes the driving forces of land use change.
Shannan Prefecture of Tibet is the central producing region of Tibetan chicken, and Tibetan chicken feeding has become one of the characteristic industries of animal husbandry in local agricultural and pastoral area, ...Shannan Prefecture of Tibet is the central producing region of Tibetan chicken, and Tibetan chicken feeding has become one of the characteristic industries of animal husbandry in local agricultural and pastoral area, and it is an important source of food and income for the locals. However, because of extensive feed- ing managemem, low level of intensification, blind hybrid of exotic varieties and despising selective breeding, the number of pedigree Tibetan chickens have reduced year by year and the performance of Tibetan chicken herd varied greatly, premium specificity could not be effectively utihzed. By investigating the present situation of Tibetan chicken feeding, analyzing the specificity of Tibetan chicken germplasm resources, the scientific conservation breeding was started to make full use of the advantage of keeping Tibetan chickens on the plateau.展开更多
Objective: We investigated the psychological distress of school teachers using a 6-item instrument (the K6) in Kagawa prefecture, Japan. Methods: A total of 670 school teachers (328 men and 342 women) were analyzed in...Objective: We investigated the psychological distress of school teachers using a 6-item instrument (the K6) in Kagawa prefecture, Japan. Methods: A total of 670 school teachers (328 men and 342 women) were analyzed in this cross-sectional investigation study. The association between psychological distress and clinical factors was evaluated by using the K6 instrument, with psychological distress defined as 13 or more points out of a total of 24 points. Results: A total of 55 teachers (8.2%) were classified as having psychological distress. No significant relationships between the K6 score and sex, age, duration of experience as a teacher, school grade and title were noted. The K6 score in teachers with consciousness of suicide among students was higher than that without, but not at a significant level. Conclusion: Some teachers were defined as having psychological distress in Kagawa prefecture, Japan. However, no relevant effects of basic characteristics such as age and sex on psychological distress were recognized.展开更多
Agricultural branding is an important mark of agricultural modernization. Enshi Prefecture of Hubei Province is reputed as " Tobacco Kingdom" and " World Capital of Selenium". It is also the key pr...Agricultural branding is an important mark of agricultural modernization. Enshi Prefecture of Hubei Province is reputed as " Tobacco Kingdom" and " World Capital of Selenium". It is also the key production area of flue-cured tobacco,burley tobacco and selenium-enriched tobacco. The tobacco industry has become a pillar industry of Enshi Prefecture. This paper firstly introduces tobacco resource and industry of Enshi Prefecture. Then,it analyzes countermeasures for tobacco branding and industrial development. Finally,it comes up with several constructive recommendations.展开更多
Health ecotourism is an emerging form of tourism industry. Selenium is an essential nutrient in delaying aging,has signifi cant therapeutic effect on various diseases. Enshi Prefecture in Hubei Province enjoys a reput...Health ecotourism is an emerging form of tourism industry. Selenium is an essential nutrient in delaying aging,has signifi cant therapeutic effect on various diseases. Enshi Prefecture in Hubei Province enjoys a reputation of the "World Selenium Capital",is a region of high-concentration negative oxygen ion and livable climate. The prefecture has unique regional advantages with selenium-enriched wellness ecotourism. Through introducing selenium-enriched tourism resources,ecotourism resources and health tourism resources in the World Selenium Capital,this paper analyses the development countermeasures for the selenium-enriched wellness ecotourism,and puts forward constructive suggestions.展开更多
基金Supported by Identification and Control Analysis of Diseases and Insect Pests of Kiwifruit in Qiandongnan Prefecture(QKH H[2017]7178)Guizhou Key Laboratory of Qiandongnan Ethnic Characteristic Food Research and Development(QJH KY[2017]011)Talent Team Project of Guizhou Department of Education(QJHRCTD[2015]70)。
文摘[Objectives]The paper was to investigate and identify the fungal diseases of wild and red heart kiwifruit in Qiandongnan Prefecture.[Methods]The pathogenic fungi were isolated from diseased leaves and fruits of wild and red heart kiwifruit by tissue separation method.DNA sequencing was carried out by using the sequence analysis of ribosomal r DNA-ITS region,and molecular evolutionary trees were built by using MEGA 4.0 software.Finally,the pathogenic fungi were classified and identified by combining morphological observation.[Results]The main fungal diseases were anthracnose caused by Colletotrichum gloeosporioides on wild kiwifruit,fruit anthracnose caused by C.acutatum on red heart kiwifruit,leaf soft rot caused by Fusarium incarnatum on red heart kiwifruit,and brown spot caused by Alternaria alternata on red heart kiwifruit.[Conclusions]The study may provide some theoretical basis for the control of kiwifruit diseases in Qiandongnan Prefecture.
基金Knowledge Innovation Project of CAS No. KZCX02-308
文摘With the development of Internet technologies, Internet Based Information System (IBIS) arises with more advantages: Firstly, it is convenient for users to use owing to the introduction of Internet technologies. Secondly, it benefits greatly the data dissemination and data sharing based on Internet. The most important but not the last is that we can establish the information service network supported by its technologies and the facilities of information highway. So, it would be significant to design IBIS to realize the data collection, sharing and dissemination on Internet. There are many factors affecting regional environment. So it is not easy to realize the integrated environmental monitoring. Given this, we designed the Internet based environmental monitoring information system. By the virtue of the Internet based environmental monitoring information system, the management and storage of environmental monitoring data would be easier, which lays the foundation to actualize the environmental monitoring efficiently.
文摘Freshwater ecosystems provide a host of services to humanity. These services are now rapidly being lost, not least because of the inability of making the impacts measurable. To overcome this obstacle, assessment frameworks for freshwater ecosystem services are needed. A simple water equivalent framework to assess the ecological services provided by freshwater ecosystems was developed in this study. It translated the occupation of freshwater ecosystem services into biologically freshwater volumes and then compares this consumption to the freshwater throughput, that is, the ecological capacity available in this region. In this way, we use the example of Yangzhou Prefecture, to account the main categories of human occupation of water ecosystem services. The result showed that there is a huge gap between the consumption and the supply of freshwater ecosystem services. This must encourage local government to make land-use and water management decisions both economically rational and environmentally sound.
基金funded by China-MSD HIV/AIDS Partnership Project(2012-83)Comprehensive Assessment for HIV/AIDS Control and Prevention in Sichuan Province Project(2006-2010)
文摘Objective This study was to investigate the HIV current situation in Liangshan prefecture, in order to predict prevalence and transmission trends. Methods Region-specific population, behavior, serosurveillence, and policy/program data (from 1995 to 2020) were gathered from various local and national organizations and applied to the Asian Epidemic Model (AEM) and used to derive estimates of future HIV prevalence, epidemic trends, and outcomes of intervention strategies. Results The AEM projections for 2020 included increased number of people living with HIV (PLHIV; to 136 617), increased HIV prevalence (2.51%), and 8037 deaths from acquired immunodeficiency syndrome (AIDS) in this region. However, the overall HIV incidence rate (per 10 000) was projected to decline from 27 in 2015 to 22 in 2020, largely due to a predicted decrease in HIV infection rate (per 10 000) from 658 in 2013 to 621 in 2020 among intravenous drug users. In contrast, the cases of HIV infection per i0 000 was projected to increase from 420 in 2010 to 503 in 2020 among men who have sex with men, and from 8 in 2010 to 15 in 2020 among the general population. The predominant risk factor for HIV transmission over the next decade in Liangshan was casual sex. Community-based outreach strategies to reduce injected drug use and casual sex, and to promote condom use, were predicted as effective interventions to decrease HIV transmission. Conclusion Implementation of a comprehensive public health program, with targeting to the region-specific at-risk populations, will help to mitigate HIV/AIDS spread in Liangshan.
基金Supported by Fund Project of Enshi Prefecture(2150199)Research and Development Project in Enshi Technology Plan(2013014)
文摘Agricultural intellectual property rights can protect the innovation of agricultural science and technology. Enshi Prefecture is China's important tea-producing area. Its tea industry has become a pillar industry. The prefecture enjoys a reputation of " world selenium capital",and is the best birthplace of natural selenium-enriched tea. The national geographical indication protection has been implemented for Enshi Yulu Tea,Enshi selenium-enriched tea,Wujiatai Tribute Tea,Hefeng Tea,Mapo Tea,etc. This paper introduces the geographical indication characteristics and agricultural intellectual property protection of the tea in this world selenium capital,analyses the countermeasures for agricultural intellectual property protection,and puts forward some constructive suggestions.
文摘[ Objective] The study aimed to discuss the temporal-spatial distribution and short-range prediction indicators of hail weather in east central Haixi Prefecture of Qinghai Province. [Method] Using hail data of six stations in east central Haixi Prefecture from 1960 to 2010, the temporal and spatial distribution of hail weather was analyzed firstly. Afterwards, based on the high-altitude factual data of 30 case studies of hail during 2006 -2010, its high-altitude and ground weather situation and physical quantity field were studied to summarize short-term circulation pattern and shod- range prediction characteristics of hail weather. [ Result] In east central Haixi, hail appeared from April to September, and it was most frequently from May to August. Meanwhile, hail was frequent from 14:00 to 20:00. Among the six stations, hail was most frequent in Tianjun but least frequent in Wulan. Moreover, hail disaster mainly occurred in Wulan and Tianjun. In addition, there were three typos of circulation pattern of hail weather at 500 hPa. Hail mainly occurred under the effect of northwest airflow, and it had shortwave trough, cold center or trough, jet stream core or one of the three. Hail appeared frequently under the situation of upper-level divergence and low-level convergence, and abundant water vapor and water vapor flux convergence at low levels were important conditions for hailing. [ Conclusion] The research could provide scientific references for improving the accuracy of hail forecast.
基金Supported by Social Science Research Project of Yangtze University(YS2018027)
文摘As a good mode of getting rid of poverty,poverty alleviation through tourism can transform the advantages of local resources into industrial advantages,mobilize the local economic vitality,and effectively improve the income of farmers.Through the investigation and study of rural poverty alleviation through tourism in Enshi Prefecture,Hubei Province,this paper analyzes the model of poverty alleviation through tourism formed in Enshi Prefecture,and puts forward the corresponding recommendations according to the problems encountered in the process of poverty alleviation through tourism.
文摘It is not clear how HPV infection is prevalent among Uygur women in Xinjiang Uygur Autonomous Region, China and whether the distribution of HPV infection is related with cervical intraepithelial neoplasia (CIN) incidence among them. A study including 883 Uygur women were conducted from 2006 to 2007 in Hetian Prefecture, Xinjiang Uygur Autonomous Region, China.
基金financial supports from the National Natural Science Foundation of China (Grant Nos. 41461040, 41601614, 41601176)the Fundamental Research Funds for the Central Universities (JBK2102018)the Sichuan Center for Rural Development Research (CR2107, Mechanism of Farmers’ Livelihoods on Ecological Security in Ethnic Regions in Sichuan Province)。
文摘Social capital in the form of social resources or social networks is one of the most important livelihood capital of farmers, which can increase the labor productivity of poor households and increase income. It is important to explore the reasons underlying the livelihood strategy choices of farmers from the perspective of social capital under China’s rural revitalization strategy. In this study, the Liangshan Yi Autonomous Prefecture, a povertystricken mountainous area in southwestern China, was selected as the case study area, and multivariable linear regression models were constructed to analyze the influence of social capital on livelihood strategies.The results are as follows:(1) Individual social capital had a positive effect on non-agricultural livelihood strategies. On average, with a one-unit increase in individual social capital, the ratio of farmers’ nonagricultural income to total productive income(Income_Rto) increased by 0.002% and 0.062%,respectively. Collective social capital, with the Peasant Economic Cooperation Organization(PECO) as the carrier, had a negative effect on the non-agricultural livelihood strategies of farmers;on average, with a oneunit increase in PECO, Income_Rto decreased by approximately 0.053%. However, this effect was only significant in the river valley area.(2) The income differences among the different livelihood strategy types were explained by the livelihood strategy choices of farmers. As non-agricultural work can bring more benefits, the labor force exhibited one-way migration from villages to cities, resulting in a lack of the subject of rural revitalization. It is necessary to implement effective measures to highlight the role of PECO in increasing agricultural income for farmers. Finally,based on the above conclusions,policy recommendations with respect to livelihood transformation of farmers and rural sustainable development are discussed.
文摘By studying current seedling production in Honghe Hani and Yi Nationality Autonomous Prefecture, tropical and subtropical urban landscape plant production in southwest China was analyzed. Local nurseries total 6.40 km 2 , accounting for 5.1% of total constructed land area in the prefecture, and only 0.02% of the total land area in the prefecture. Application of local plant species in landscape engineering and green coverage ratio lags far behind the indexes of Chinese livable city and indexes of relieving urban heat island effect. By making proper policies and measures, seedling production can be promoted, rare and endanged wild plant species should be fully used to construct garden city, control PM2.5 and protect the living environment.
基金Sub-global project of UN Millennium Ecosystem Assessment (MA) program Key project of international scientific and technological collaboration funded by the Ministry of Science and Technology of China No. 2001DFDF0004
文摘Landscape is a dynamic phenomenon that almost continuously changes. The overall change of a landscape is the result of complex and interacting natural and spontaneous processes and planned actions by man. However, numerous activities by a large number of individuals are not concerted and contribute to the autonomous evolution of the landscape in a similar way as natural processes do. There is a well-established need to detect land use and ecological change so that appropriate policies for the regional sustainable development can be developed. Landscape change detection is considered to be effectively repeated surveillance and needs especially strict protocols to identify landscape change. This paper developed a series of technical frameworks on landscape detection based on Landsat Thematic Mapper (TM) Data. Through human-machine interactive interpretation, the interpretation precision was 92.00% in 1986 and 89.73% in 2000. Based on the interpretation results of TM images and taking Yulin prefecture as a case study area, the area of main landscape types was summarized respectively in 1986 and 2000. The landscape pattern changes in Yulin could be divided into ten types.
文摘Chiba Prefecture is located in the east of Tokyo Metropolis. A large scale development of industrial and residential areas began in the late 1950s until then the main industries of the prefecture were agriculture and fisheries. During the past 30 years rapid industrialization and urbanization took place resulting in occurrence of various environmental problems.In an attempt to establish a better environment condition towards 21st century Chiba Prefecture has made Environmental Plan which all the municipal governments, enterprises and inhabitants should observe to realize better environment.
文摘Based on the dynamic observation of Xylotrechus quadripes Chevrolat for consecutive three years, the living habits and damage status of X. quadripes in Dehong Prefecture, Yunnan Province were cleared, to provide the basis for its prevention and control. The results showed that the larvae and pupae of X. quadripes occurred from April to September in Dehong Prefecture;the adults occurred from September to November;the eggs occurred from December to March of the next year. Different measures could be adopted according to different periods, so as to achieve the best control effect.
文摘This study investigated the linkages between river water quality and land use in river catchments in Yama- guchi Prefecture, the western Japan, in order to examine the effect of land use changes of both entire catchment and buffer zone on river water quality. Dissolved Oxygen (DO), pH, Biological Oxygen Demand (BOD), Suspended Solids (SS), Escherichia coli, Total Nitrogen (TN) and Total Phosphorus (TP) were considered as river water quality indica- tors. Satellite images were applied to generating the land use map. Multiple regression model was applied to linking the changes in the river water quality with the land uses in both entire catchment area and buffer zone. The results in- dicate that the integrative application of land use data from the entire catchment and the buffer zone could give rise to more robust model to predict the concentrations of Suspended Solids (r2=0.88) and Total Nitrogen (r2=0.90), rather than models which separately considered land use data in catchment and buffer zone.
基金Supported by the Project of Education Department of Sichuan Province,China(16ZB0365)Project of Sichuan Minzu College(XYZB18041SB)
文摘Based on the statistical data of daily precipitation in 14 meteorological stations of Ganzi Prefecture from 1960 to 2011, the temporal variation characteristics of precipitation in Ganzi Prefecture in nearly 50 years were studied. The results showed that in Ganzi Prefecture, annual precipitation showed an increasing trend, and averaged 659 mm in nearly 50 years, mainly varying from 550 to 750 mm. In a year, precipitation was mainly distributed in summer and autumn, and the precipitation in summer and autumn accounted for 83% of annual precipitation. Seen from the interdecadal variation of annual precipitation, annual precipitation in Ganzi Prefecture showed an increasing trend in different decades in nearly 50 years. It continued to increase from the 1960s to the 1990s. It increased most greatly from the 1970s to the 1980s but decreased slightly from the 1990s to the 2000s.
文摘s—This paper generalizes land use development in Liaocheng Prefecture, Shandong Province, China; describes land use changes during different period of time; and analyzes the driving forces of land use change.
文摘Shannan Prefecture of Tibet is the central producing region of Tibetan chicken, and Tibetan chicken feeding has become one of the characteristic industries of animal husbandry in local agricultural and pastoral area, and it is an important source of food and income for the locals. However, because of extensive feed- ing managemem, low level of intensification, blind hybrid of exotic varieties and despising selective breeding, the number of pedigree Tibetan chickens have reduced year by year and the performance of Tibetan chicken herd varied greatly, premium specificity could not be effectively utihzed. By investigating the present situation of Tibetan chicken feeding, analyzing the specificity of Tibetan chicken germplasm resources, the scientific conservation breeding was started to make full use of the advantage of keeping Tibetan chickens on the plateau.
文摘Objective: We investigated the psychological distress of school teachers using a 6-item instrument (the K6) in Kagawa prefecture, Japan. Methods: A total of 670 school teachers (328 men and 342 women) were analyzed in this cross-sectional investigation study. The association between psychological distress and clinical factors was evaluated by using the K6 instrument, with psychological distress defined as 13 or more points out of a total of 24 points. Results: A total of 55 teachers (8.2%) were classified as having psychological distress. No significant relationships between the K6 score and sex, age, duration of experience as a teacher, school grade and title were noted. The K6 score in teachers with consciousness of suicide among students was higher than that without, but not at a significant level. Conclusion: Some teachers were defined as having psychological distress in Kagawa prefecture, Japan. However, no relevant effects of basic characteristics such as age and sex on psychological distress were recognized.
基金Supported by Prefecture Level Financial Project of Enshi Prefecture(2150199)Sci-tech Plan and R&D Project of Enshi Prefecture(2013014)
文摘Agricultural branding is an important mark of agricultural modernization. Enshi Prefecture of Hubei Province is reputed as " Tobacco Kingdom" and " World Capital of Selenium". It is also the key production area of flue-cured tobacco,burley tobacco and selenium-enriched tobacco. The tobacco industry has become a pillar industry of Enshi Prefecture. This paper firstly introduces tobacco resource and industry of Enshi Prefecture. Then,it analyzes countermeasures for tobacco branding and industrial development. Finally,it comes up with several constructive recommendations.
基金Sponsored by Finance Program of Enshi Prefecture(2150199)Research and Development of Enshi Prefecture SciTech Planning(2013014)
文摘Health ecotourism is an emerging form of tourism industry. Selenium is an essential nutrient in delaying aging,has signifi cant therapeutic effect on various diseases. Enshi Prefecture in Hubei Province enjoys a reputation of the "World Selenium Capital",is a region of high-concentration negative oxygen ion and livable climate. The prefecture has unique regional advantages with selenium-enriched wellness ecotourism. Through introducing selenium-enriched tourism resources,ecotourism resources and health tourism resources in the World Selenium Capital,this paper analyses the development countermeasures for the selenium-enriched wellness ecotourism,and puts forward constructive suggestions.