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The Development of Leisure Agriculture Based on Characteristics of Land Resource Utilization 被引量:4
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作者 YANG Li 1 ,YU Zhong-xiang 1 ,MA Wei-peng 2 1. College of Economics and Management,Anhui Agricultural University,Hefei 236800,China 2. School of Earth Science and Resources, Chang’an University,Xi’an 710001,China 《Asian Agricultural Research》 2012年第8期60-63,67,共5页
Based on analysis of geographical and location advantages of Qiaocheng District,we discussed characteristics of land utilization and local industry. In accordance with these characteristics,it is proposed to explore p... Based on analysis of geographical and location advantages of Qiaocheng District,we discussed characteristics of land utilization and local industry. In accordance with these characteristics,it is proposed to explore potential of farming land,speed up transfer of farming land in Qiaocheng District,and develop the leisure agriculture. 展开更多
关键词 LEISURE agriculture ECOLOGICAL ECONOMY land transf
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An agent-based model of agricultural land expansion in the mountain forest of Timor Island,Indonesia
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作者 PUJIONO Eko SADONO Ronggo +12 位作者 IMRON Muhammad Ali SUTOMO JANUAR Hedi Indra KUSWANDI Relawan KURNIAWAN Hery HADI Etik Erna Wati SAPUTRA Muhammad Hadi HIDAYAH Izhamil HUMAIDA Nida SUKMAWATI Jalma Giring HADIYAN Yayan NUGROHO Agung Wahyu HANI Aditya 《Journal of Mountain Science》 SCIE CSCD 2024年第7期2263-2282,共20页
The Mutis-Timau Forest Complex,located on Timor Island,Indonesia,is a mountainous tropical forest area that gradually decreases due to deforestation and forest degradation.Previous modelling studies based on patterns ... The Mutis-Timau Forest Complex,located on Timor Island,Indonesia,is a mountainous tropical forest area that gradually decreases due to deforestation and forest degradation.Previous modelling studies based on patterns indicate that deforestation primarily occurs at lower elevations and near the boundaries of forests and settlements,often associated with shifting cultivation by local farmers.This study adopts a process-based modelling approach,specifically the agent-based model,to simulate land changes,particularly farmers'expansion of agricultural land around the Mutis mountain forest.The underlying concept of this agent-based approach is the interaction between the human and environmental systems.Farmers,representing the human system,interact with the land,which represents the environmental system,through land use decision-making mechanisms.The research was conducted in the Community Forest of the Timor Tengah Utara District,one of the sites within the Mutis-Timau Forest Complex with the highest deforestation rate.Land use change simulations were performed using agent-based modelling from 1999 to 2030,considering the socio-economic conditions of farmers,spatial preferences,land use decisions,and natural transitions.The results revealed that the agricultural area increased by 14%under the Business as Usual scenario and 5%under the Reducing Emission from Deforestation and Forest Degradation scenario,compared to the initial agricultural area of 245 hectares.The probability of farmers deciding to extend agricultural activities was positively associated with the number of livestock maintained by farmers and the size of the village area.Conversely,the likelihood of farmers opting for agricultural extensification decreased with an increase in the area of private land and the farmer's age.These findings are crucial for the managers of the Mutis-Timau Forest Complex and other relevant stakeholders,as they aid in arranging actions to combat deforestation,designing proper forest-related policies,and providing support for initiatives such as reducing emissions from deforestation and forest degradation programs or further incentive schemes. 展开更多
关键词 agricultural land expansion Simulation Agent-based model FARMER DEFORESTATION Mountainous tropical forest
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Analysis of Regional Difference of Agricultural Land Productivity in Heilongjiang Province
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作者 Linlin CAO Jinrong YANG Shiqin YANG 《Asian Agricultural Research》 2024年第8期9-13,16,共6页
The sustenance of humanity is contingent upon the production of food.The foundation of this production is agriculture,which in turn is dependent upon the cultivation of the land.As a fundamental element of agricultura... The sustenance of humanity is contingent upon the production of food.The foundation of this production is agriculture,which in turn is dependent upon the cultivation of the land.As a fundamental element of agricultural advancement,the rational development and utilization of land play a pivotal role in the process of rural revitalization.Agricultural land productivity serves as a principal indicator of the efficacy of land utilization and the extent of agricultural advancement.Nevertheless,there is a paucity of research examining the productivity of agricultural land,particularly a lack of specialized research on large agricultural provinces.In light of the aforementioned considerations,this paper presents a comprehensive examination of agricultural land productivity and its regional variations in Heilongjiang Province in 2022,with the aid of pertinent statistical data.The findings of the analysis indicate that among the prefecture-level cities,Daqing and Suihua exhibit the highest levels of agricultural land productivity.Additionally,Zhaodong City,Zhaozhou,Qinggang,Wangkui,and Lanxi counties exhibit high levels of agricultural land productivity within their respective prefecture-level cities.There are notable disparities in agricultural land productivity across various regions,including Yichun,Heihe,Harbin,Daqing,Hegang,and Suihua.In contrast,other regions demonstrate a more balanced spatial distribution.In order to facilitate the prosperous development of the agricultural industry in Heilongjiang Province,it is essential to optimize the spatial planning of the land,to investigate the potential for agricultural development in each region,to establish effective collaboration between resources and industries,and to create a development synergy that will collectively advance rural revitalization. 展开更多
关键词 agriculturAL land PRODUCTIVITY REGIONAL DIFFERENCE Heilongjiang PROVINCE
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Analysis of Impervious Surface Area, and the Impacts on Soil-Based Agriculture and the Hydrologic Cycle: A Case Study in the Agricultural Land Reserve in Metro Vancouver, British Columbia, Canada 被引量:1
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作者 Ashley Rose Julie E. Wilson Les M. Lavkulich 《Agricultural Sciences》 2017年第8期837-856,共20页
The province of British Columbia, Canada, has established an Agricultural Land Reserve (ALR) to protect the most suitable soil landscapes for agriculture. Increases in population and urbanization have resulted in deve... The province of British Columbia, Canada, has established an Agricultural Land Reserve (ALR) to protect the most suitable soil landscapes for agriculture. Increases in population and urbanization have resulted in development challenges on ALR lands. The Metro Vancouver area is the most productive agricultural area in British Columbia as well as the most rapidly growing urban region. The increase in impervious areas has decreased the amount of arable land for soil-based agriculture and altered the hydrological cycle. Analysis using a combination of aerial imagery and GIS found that impervious areas comprise about 10 percent of the ALR within Metro Vancouver. Farm residences and greenhouses have the largest effect on reducing the soil surface for water infiltration. This decrease in area has negatively influenced the ecosystem heath of the region, as well as, decreasing the amount of agricultural land for soil based agriculture and both surface and groundwater dynamics. 展开更多
关键词 agriculturAL land Reserve Impervious Surfaces Watershed Health STORMWATER Runoff HYDROLOGY
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Non-agricultural Population, Employment and Land:An Econometric Study in an Integrated Framework
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作者 Hu Weiyan Zhang Anlu Liu Caixia 《Chinese Journal of Population,Resources and Environment》 2009年第1期65-75,共11页
Abstract: his paper explored the relationships among nonagricultural population, employment and land in an integrated framework, taking account of rural-urban land conversion into Carlino-Mills's model on the region... Abstract: his paper explored the relationships among nonagricultural population, employment and land in an integrated framework, taking account of rural-urban land conversion into Carlino-Mills's model on the regional growth. Two-stage-leastsquares and ordinary-least-squares were employed. Recent data for district (grade) cities in China (from 1999 to 2005) were used. Our results showed that: first, urban population influenced non-agricultural employment, and vice versa, but the evidence that non-agricultural employment influenced urban population was stronger than the evidence that urban population influenced non-agricultural employment; second, urban population and non-agricultural employment both influenced ruralurban land conversion, but the evidence that urban population influenced rural urban land conversion was more stronger than the evidence that non-agricultural employment did. We also found that: first, the employment from the secondary industry influenced urban population in a positive way, and vice versa, but the employment from the tertiary industry influenced urban population in a negative way, and vice versa; second, the employment from the secondary industry influenced rural-urban land conversion in a positive way, but the employment from the tertiary industry influenced rural-urban land conversion in a negative way. We can conclude that the key of urbanization is to speed up the process of non-agricultural employment, especially the employment from the tertiary industry, which might promote non-agricultural population, employment and land harmoniously. 展开更多
关键词 non-agricultural population non-agricultural employment non-agricultural land
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Integration of Agriculture and Wildlife Ecosystem Services: A Case Study of Westham Island, British Columbia, Canada
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作者 Yuan Zhang Julie E. Wilson Les M. Lavkulich 《Agricultural Sciences》 2017年第5期409-425,共17页
There is concern regarding the loss of ecosystem goods and services as a result of land use changes such as the expansion and intensification of agricultural activities. Assessments of these interactions require innov... There is concern regarding the loss of ecosystem goods and services as a result of land use changes such as the expansion and intensification of agricultural activities. Assessments of these interactions require innovative analyses that combine qualitative and quantitative economic analyses. The Millennium Ecosystem Assessment framework was applied to a peri-urban region in British Columbia, Canada to assess the effects of the integration of agricultural programs and the maintenance of waterfowl habitat located on the Pacific Flyway. The Delta Farmland & Wildlife Trust, a non-governmental organization, has implemented several activities to enhance ecosystem goods and services by cooperative programs among the agricultural community and wildlife interests. The successful collaborative framework has resulted in enhanced soil quality, increased biodiversity, and the maintenance of valuable agriculture and waterfowl habitat. 展开更多
关键词 ECOSYSTEM Services agriculture land Use Change WILDLIFE HABITAT
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Considerations on Sustainable Agriculture and Rural Development in Dryland Areas
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作者 LI Li TSUNEKAWA Atsushi +1 位作者 TSUBO Mitsuru KOIKE Atsushi 《Journal of Northeast Agricultural University(English Edition)》 CAS 2010年第4期20-24,共5页
Drylands of the world cover 41%of the Earth's land surface and are a direct source of livelihood for 6.5 billion people, especially in developing countries. However, nearly all drylands are at risk of land degradatio... Drylands of the world cover 41%of the Earth's land surface and are a direct source of livelihood for 6.5 billion people, especially in developing countries. However, nearly all drylands are at risk of land degradation as a result of human activities. Poverty and desertification in dryland areas are major problems threatening sustainable agriculture and rural development in dryland areas. Several topics that are significant for sustainable agriculture and rural development for food security and environmental rehabilitation in dryland areas were stressed in this paper. 展开更多
关键词 dryland area sustainable agriculture and rural development integrated land management sustainable livelihood
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Land Tenure and Its Influence on Agriculture in Artisanal Gold-Mining Zones of Sikasso Region, Mali
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作者 Mahamadou Moussa Keita George Morara Ogendi 《Open Journal of Ecology》 2021年第2期95-104,共10页
Land tenure is a major determinant of the types of land use in a region or area and, by extension, affects its conservation. Most of the land that falls under public or communal land-tenure systems in developing count... Land tenure is a major determinant of the types of land use in a region or area and, by extension, affects its conservation. Most of the land that falls under public or communal land-tenure systems in developing countries such as Mali faces numerous challenges among them being natural resource overexploitation. This is mainly because the land is openly accessible to all people around it, and thus the tendency to overexploit the land resources leading to degradation, and food and environmental insecurity. In Mali, land ownership falls under three categories: Public or Government, Communal and Private. This study was undertaken to assess the land ownership types in Yanfolia District, Mali, a gold-mining area that lies some 170 km southern east of capital district of Bamako and upstream of Selingué dam on Sankarini River. A social survey of 200 households was done using a structured questionnaire. Additional research instruments were focus group discussion, key informant interviews and observation check-lists. The data was analyzed using both descriptive and inferential statistics. The study findings indicated that most of the land under gold-mining was owned by the government followed by community and finally private. There were significant associations between size of land under gold-mining and land tenure types: communal land (<em>χ</em><sup>2</sup> = 30.52;p = 0.000);private land (<em>χ</em><sup>2</sup> = 65.09;p = 0.000) and public or government land (<em>χ</em><sup>2</sup> = 177;p = 0.000). Gold-mining takes place mostly on lands classified under public/government and communal compared to that which takes place on lands classified as private. It is recommended that the relevant Malian governmental regulatory and enforcement agencies implement and enforce existing environmental laws with respect to land and environment. These agencies should adopt participatory and sustainable approaches to land and natural resources management for improved food and environmental security. 展开更多
关键词 land Gold-Mining Environment agriculture Food-Security
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Importance and Countermeasures of Curbing the Conversion of Agricultural Land to Non-agricultural Land under the Background of the Rural Revitalization Strategy
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作者 Mingqian JIN Zisheng YANG 《Asian Agricultural Research》 2021年第11期27-31,共5页
Farmland is the most basic element for farmers’survival and development,and has a social security function.The conversion of agricultural land to non-agricultural land has gradually become the primary factor in the r... Farmland is the most basic element for farmers’survival and development,and has a social security function.The conversion of agricultural land to non-agricultural land has gradually become the primary factor in the reduction of agricultural land in various regions of China,seriously endangering China’s food security.Under the background of the rural revitalization strategy,the emergence of the conversion of agricultural land to non-agricultural land and the inevitability of its development were analyzed from both the acceleration of urbanization and the increase in land demand by using the literature research method.The importance of curbing the conversion of agricultural land to non-agricultural land to achieve the grand goal of strong agriculture,beautiful rural areas,and rich farmers was clarified,and then countermeasures and suggestions to curb the conversion of agricultural land to non-agricultural land were put forward,which is of great significance to promoting the effective implementation of China’s rural revitalization strategy. 展开更多
关键词 Rural revitalization strategy Conversion of agricultural land to non-agricultural land COUNTERMEASURES
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The Impact of the Ghana's Oil Discovery on Land Investment and Its Implications in the People, Agriculture and the Environment (Case Study: Cape Three Points, Ghana)
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作者 Peter Paa-Kofi Yalley Chris Atanga +1 位作者 Joe Fredrick Cobbinah Philip Kwaw 《Journal of Environmental Science and Engineering(B)》 2012年第7期922-930,共9页
The study was conducted to assess the impact of Ghana's oil discovery on the land values, the extent of acquisition, and their implications of the land investment in the people, agriculture and the environment in the... The study was conducted to assess the impact of Ghana's oil discovery on the land values, the extent of acquisition, and their implications of the land investment in the people, agriculture and the environment in the Cape Three Points area, which is the communities close to the oil field. Questionnaires were designed and administered to collect data from the chiefs, queen mothers, family heads and opinion leaders of the area. Results of the studies indicated that there had been an increase of about 2000% in land values from 2007 to 2011. Also there was an increase in demand for lands in the Cape Three Points with acquisitions usually ranging from 10 acres to over 600 acres. It also emerged that the livelihood of the inhabitants of Cape Three Points was threatened due to the conversion of arable land to non-agriculture uses. This change in land uses has significant negative impacts on land degradation and its related reduction of agricultural and food production in the area. The technical difficulties of assessing land degradation, the weakness of existing databases, and the poorly explored linkages between land degradation and other aspects of rural development were some of the limitation of the studies. The study increased awareness of the chiefs and other land owners to reserve land for the future generation and for agriculture purposes. The study drew government's attention through the Ahanta West District Assembly to the planning needs of the towns in the Cape Three Points to streamline land use of the area. 展开更多
关键词 Cape Three Points OIL agriculture land degradation.
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Land Use Capability and the Sustainable Scale: An Overview of Agriculture in São Paulo State, Brazil
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作者 Oscar Sarcinelli Ademar Ribeiro Romeiro +1 位作者 Lauro Charlet Pereira Sergio Gomes Tosto 《Natural Resources》 CAS 2022年第8期171-180,共10页
Establishing a sustainable scale in natural resources management enables effective economic and ecological policies and guarantees the long-term sustainability of economic production. In agriculture, land evaluations ... Establishing a sustainable scale in natural resources management enables effective economic and ecological policies and guarantees the long-term sustainability of economic production. In agriculture, land evaluations determine the land use sustainable scales, that is, those that avoid land degradation and allow the provision of food, wood, energy, and ecosystem services over time. The paper assessed S&atilde;o Paulo State’s agricultural sustainability by analyzing the current land use adequacy to the land use capability map that follows FAO 1976 “guide for land evaluation” and was applied to S&atilde;o Paulo by the State Agricultural Secretariat. Results indicate inefficiencies in land use at the state level, where more than one-third of agricultural lands do not satisfy technical land capability indications. According to technical land use capability, more than 4.5 million hectares are being underused (economic inefficiency) and another 2.2 million hectares are being overused (environmental inefficiency). Pasturelands represent the most unsustainable land use, where 3.7 million hectares are allocated in high quality lands with high agricultural production potential, and another 0.7 million hectares are allocated in lands with very low quality for agriculture, most of than area degraded. To achieve sustainability, lands with high agricultural production potential should be used to improve agriculture and food production and, on the other hand, lands with very low agricultural production potential should be used for wood production, agroforestry, ecotourism and natural ecosystems conservation. Our results provide a framework for improving land use policies in S&atilde;o Paulo State and highlight an opportunity to achieve land use sustainability. 展开更多
关键词 land Use Planning land Capability agricultural Sustainability
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Land Distribution and Economic Development: Small Scale Agriculture in Developing Countries
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作者 Harriet Kasidi Mugera 《Management Studies》 2015年第3期138-153,共16页
Small scale farmers constitute about half of world's hungry people and include three quarters of Africa's malnourished children. The appropriate identification and characterization of this population and the constra... Small scale farmers constitute about half of world's hungry people and include three quarters of Africa's malnourished children. The appropriate identification and characterization of this population and the constraints it faces are essential for the design and the successful implementation of safety nets and to properly target their needs and effectively include them in agricultural development strategies. This paper aims at exploring the characteristics, limitations, and potential for agricultural development of small scale farmers in developing countries. It calculates four land cultivated thresholds which are then used as a measure to classify households that were surveyed in four developing countries. It empirically estimates the magnitudes of the smallholders, their characteristics, as well as their poverty status using the four thresholds. This analysis provides empirical evidence that small scale farmers still prevail in terms of population distribution in rural area settings in developing countries. Small scale farmers heavily rely on farm income as their form of livelihood and heavily contribute to the rural income. It also finds that land is unequally distributed among small and large scale farmers in the rural households. Small scale farmers also have the highest poverty rates in these rural settings. 展开更多
关键词 agriculture small scale farming land distribution developing countries POVERTY INEQUALITY
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Journal of Arid Land selected for coverage in Cambridge Science Abstracts and Centre for Agriculture and Bioscience Abstracts
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《Journal of Arid Land》 SCIE 2012年第1期28-28,共1页
In November 2011, Journal of Arid Land (JAL) was accepted for indexing in Cambridge Science Abstracts (CSA) and Centre for Agriculture and Bioscience Abstracts (CAB Abstracts) after strict assessments by these t... In November 2011, Journal of Arid Land (JAL) was accepted for indexing in Cambridge Science Abstracts (CSA) and Centre for Agriculture and Bioscience Abstracts (CAB Abstracts) after strict assessments by these two databases. 展开更多
关键词 Journal of Arid land selected for coverage in Cambridge Science Abstracts and Centre for agriculture and Bioscience Abstracts
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Research on Overall Planning and Implementation Evaluation of Land Use of Xinjiang Production and Construction Corps Agriculture-seven Division
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作者 Ru BAO Minhua GAO Xiaolong LI 《Asian Agricultural Research》 2013年第2期39-44,共6页
Based on methods for evaluating the overall planning and implementation of land use of domestic scholars, a comprehensive and highly-operable index system and evaluating method for land use planning multi-type impleme... Based on methods for evaluating the overall planning and implementation of land use of domestic scholars, a comprehensive and highly-operable index system and evaluating method for land use planning multi-type implementation has been established through selecting multi-type evaluating indicators and applied to the last-round overall planning of land use in Xinjiang Production and Construction Corps Agriculture-seven Division. The obtained comprehensive score was 86.40, indicating that land use overall planning has been excellently coordinated with land, society, economy as well as ecology and has exerted outstanding effect with the rank as "good". The evaluation results are in accordance with actual conditions, which displays that the established multi-type implementation evaluating system of land use overall planning is reasonable with scientific evaluating methods and can be the reference for evaluation of land use overall planning in other regiments and companies of Xinjiang Production and Construction Corps. 展开更多
关键词 XINJIANG Production and Construction CORPS Agricul
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Ecological Suitability Evaluation on Agricultural Land in Western Jilin Province Based on Fuzzy Mathematics 被引量:2
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作者 臧立娟 王凤艳 任建超 《Agricultural Science & Technology》 CAS 2012年第8期1757-1761,共5页
[Objective] This study was to evaluate the ecological suitability of agricultural land in western Jilin Province, with the aim to provide basis for the effective application of agricultural resources and the structura... [Objective] This study was to evaluate the ecological suitability of agricultural land in western Jilin Province, with the aim to provide basis for the effective application of agricultural resources and the structural adjustment of land use. [Method] The evaluation index system was constructed based on fuzzy mathematic method according to the principles of systematic, dominant, effectiveness and feasibility; based on law of tolerance, reasonable evaluation criteria were determined according to the ecological amplitude of crops; based on GIS processing, the initial data completed the mathematical operation by using the VBA program in Excel. [Result] The area of agricultural land grade I was 5 512 km2, grade II of 25 985 km2, grade Ill of 7 907 km2, and area of land not suitable for agriculture was 6 312 km2. According to the evaluation results, the key areas for land use adjustment were Zhenlai County, Da'an County, Tongyu County and western Changling County. The directions of land use adjustment included improving irrigation and drainage conditions, governing land salinization and conversion of cropland to forest and grassland. [Conclusion] This study provided basis for the effective application of agricultural resources and ecological environment construction in western Jilin Province. 展开更多
关键词 land use Suitability evaluation agricultural land Fuzzy mathematic method Western Jilin Province
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Research of Comprehensive Evaluation of Agricultural Land Suitability in Typical Area of Huanghuaihai Plain based on GIS 被引量:1
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作者 肖燕 《Agricultural Science & Technology》 CAS 2010年第6期125-129,178,共6页
The paper aims to study agricultural land suitability in typical agricultural area in Huanghuaihai plain by the comprehensive evaluation of natural factors and environmental conditions of agricultural land with Liaoch... The paper aims to study agricultural land suitability in typical agricultural area in Huanghuaihai plain by the comprehensive evaluation of natural factors and environmental conditions of agricultural land with Liaocheng area in Shangdong Province in the center of Huanghuaihai plain as a case.The results suggested that the land quality in Liaocheng was above the average and accorded with the local practical situation.The authors validated the scientificity of agricultural land suitability study by using GIS technology and proposed some suggestions on analysis results. 展开更多
关键词 Huanghuaihai plain agriculture land suitability evaluation GIS technology
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Effect of Agricultural Land Reform on Cotton Cultivation in Manasi,XinJiang Based on Reformed Farmers
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作者 田洁玫 杨俊孝 《Agricultural Science & Technology》 CAS 2013年第1期176-179,共4页
[Objective] The paper was to study the effect of agricultural land reform on cotton cultivation in Manasi, XinJiang based on reformed farmers. [Method] Rural land contract management rights transfer of rural household... [Objective] The paper was to study the effect of agricultural land reform on cotton cultivation in Manasi, XinJiang based on reformed farmers. [Method] Rural land contract management rights transfer of rural household in Manasi County of Xinjiang Changji Hui Autonomous Prefecture were surveyed in August, 2011. Based on the survey data, the paper analyzed the effect of agricultural land reform on cotton culti- vation from 2 aspects of cotton cultivation scale and benefit, and also studied the willingness of farmers for agricultural land reform. [Result] The main obstacle for farmer's unwillingness of continuous land reform for cotton cultivation was that the cotton cultivation risk was big, and the benefit could not be guaranteed. The agricul- tural land area per household increased after agricultural land reform, which increased the modernization progress of cotton cultivation. It also increased the benefit of cotton cultivation, and further affected the benefit of cotton cultivation. [Conclusion] The study provided reference for improving scale cotton cultivation efficacy in Xinjiang. 展开更多
关键词 Manasi Cotton cultivation agricultural land reform
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How Could Agricultural Land Systems Contribute to Raise Food Production Under Global Change? 被引量:23
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作者 WU Wen-bin YU Qiang-yi +3 位作者 Verburg H Peter YOU Liang-zhi YANG Peng TANG Hua-jun 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2014年第7期1432-1442,共11页
To feed the increasing world population, more food needs to be produced from agricultural land systems. Solutions to produce more food with fewer resources while minimizing adverse environmental and ecological consequ... To feed the increasing world population, more food needs to be produced from agricultural land systems. Solutions to produce more food with fewer resources while minimizing adverse environmental and ecological consequences require sustainable agricultural land use practices as supplementary to advanced biotechnology and agronomy. This review paper, from a land system perspective, systematically proposed and analyzed three interactive strategies that could possibly raise future food production under global change. By reviewing the current literatures, we suggest that cropland expansion is less possible amid iferce land competition, and it is likely to do less in increasing food production. Moreover, properly allocating crops in space and time is a practical way to ensure food production. Climate change, dietary shifts, and other socio-economic drivers, which would shape the demand and supply side of food systems, should be taken into consideration during the decision-making on rational land management in respect of sustainable crop choice and allocation. And ifnally, crop-speciifc agricultural intensiifcation would play a bigger role in raising future food production either by increasing the yield per unit area of individual crops or by increasing the number of crops sown on a particular area of land. Yet, only when it is done sustainably is this a much more effective strategy to maximize food production by closing yield and harvest gaps. 展开更多
关键词 agricultural land systems food production expansion ALLOCATION INTENSIFICATION global change
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Agricultural Land Suitability of Production Space in the Taihang Mountains, China 被引量:8
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作者 GENG Shoubao SHI Peili +1 位作者 ZONG Ning ZHU Wanrui 《Chinese Geographical Science》 SCIE CSCD 2019年第6期1024-1038,共15页
The contradiction between the shortage of land for agriculture due to rapid expansion of industrialization and urbanization and increasing population pressure is projected to impose great threats to future food securi... The contradiction between the shortage of land for agriculture due to rapid expansion of industrialization and urbanization and increasing population pressure is projected to impose great threats to future food security.Agricultural land suitability evaluation is an effective approach to improve the utilization of land resources for crop production and thus enhance the capacity of food provision.In this study, we evaluated the land suitability for agriculture of the production space in the Taihang Mountains by three steps: establishing indicator system, determining weights for indicators, and constructing a fuzzy matter-element model to assess the grades of suitability.Results showed that the land suitability had a significant linear correlation with potential crop yields, indicating our evaluation was effective to predict crop production.The spatial pattern of land suitability for crop production demonstrated that land with higher suitability was generally located in piedmont plains and basins, while land with lower suitability was mostly situated in mountainous areas.The area of highly, moderately, marginally suitable and unsuitable land for agriculture was 32.13%, 28.58%, 37.49% and 1.80% of the production space, respectively.However, the correlation degree analysis indicated that the requirements of these four suitability grades were currently not satisfied but could be potentially fulfilled.In terms of indicator weights, soil properties were much more important than topography and location conditions to influence the grades of suitability.Among all indicators, slope, soil organic matter, soil texture and soil depth were the most influential factors, so slope farming prevention and organic fertilization were most likely to improve land suitability for agriculture.Compared the outputs of our land suitability evaluation model with the distribution of the existing croplands, we found that about 66.52% of marginally suitable and 54.55% of unsuitable land for agriculture were currently used for croplands.Therefore, de-farming policy should be implemented in areas of these two suitability grades.In contrast, cropland expansion was encouraged in the land that was highly or moderately suitable for agriculture.Our evaluation of agricultural land suitability is beneficial for future land use planning and decision-making in the Taihang Mountains. 展开更多
关键词 agriculturAL land SUITABILITY MATTER-ELEMENT model PRODUCTION SPACE the Taihang MOUNTAINS
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Regional disparity in the changes of agricultural land use intensity in China during 1980-2002 被引量:16
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作者 LIU Chengwu LI Xiubin 《Journal of Geographical Sciences》 SCIE CSCD 2006年第3期286-292,共7页
Based on the cost-benefit data (1980-2002) of farm products and China Agriculture Yearbooks, this paper studies the regional disparity in the changes of the agricultural land use in China during the period 1980-2002... Based on the cost-benefit data (1980-2002) of farm products and China Agriculture Yearbooks, this paper studies the regional disparity in the changes of the agricultural land use in China during the period 1980-2002 from three aspects such as the degree of intensity, the sown area and the abandoned farmland. The results show that: (1) The degree of intensity of land use in the westena region during 1980-2000 has a strong uptrend, but in the eastern and central regions the degree of intensity descends obviously and has shown a continuous downtrend since 1997. (2) The total sown area shrinks notably in the eastern region, while it enlarges constantly in the western region. (3) The sown area in the eastern, central and western regions has gone through a similar cyclic process: down (1980-1985)-up (1985-1991)-down (1991-1994)-up (1994-1999)-down (1999-2002). However, there are obvious differences in amplitude variation and tendency among them. The sown area has shrunk in the eastern region and expanded in the central and western regions especially before 1999. (4) The most cases of abandoned farmland are reported in the central region, the second in the eastern region and the least in the western region. The abandonment phenomena chiefly occurred during 1992-1995 in the eastern region, and during 1998-2002 in the central region. 展开更多
关键词 China agricultural land use the degree of intensity sown area abandonment of farmland regional disparity
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