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Factors Associated with Unmet Need for Family Planning among Couples Living in Urban and Rural Areas of Guinea in 2019
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作者 Soumah Aboubacar Fode Momo Conte Ibrahima +2 位作者 Bah Oumou Hawa Daniel William Athanass Leno Sy Telly 《Open Journal of Obstetrics and Gynecology》 2023年第6期1081-1093,共13页
Introduction: Unmet need for family planning (UNFP) is defined as women with unmet needs who want to stop or delay childbearing but are not using any method of contraception. The objective of this study was to analyze... Introduction: Unmet need for family planning (UNFP) is defined as women with unmet needs who want to stop or delay childbearing but are not using any method of contraception. The objective of this study was to analyze the factors associated with unmet needs for family planning among couples living in rural and urban areas of Guinea in 2019. Methodology: This was a prospective, analytical cross-sectional, multicenter study of a six-month period from August 1, 2018 to January 31, 2019, focusing on couples with unmet needs for family planning. Result: Among 189 couples interviewed, 567 had UNFP (33.3%), the reasons for not using modern contraceptive methods were desire for pregnancy (AOR = 2.74, 95% CI: 1.74, 4.31), husband’s refusal (AOR = 0.23, 95% CI: 0.06, 0.81), spousal attitude (AOR = 0.20, 95% CI: 0.130, 30), birth spacing (AOR = 2.10% to 95%: 1.16, 3.82), difficulty with a new pregnancy (AOR = 0.17, 95% CI: 0.04, 0.74), and spousal attitude (AOR = 0.20, 95% CI: 0.14, 0.30). Conclusion: The involvement of spouses, especially in rural communities, would help achieve family planning objectives and reduce unmet needs for family planning. 展开更多
关键词 Associated Factors Unmet Need Family planning COUPLE rural urban GUINEA 2019
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Exploring well-being disparities between urban and rural areas:A case study in the Stavropol Territory,Russia
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作者 Anastasia CHAPLITSKAYA Wim HEIJMAN Johan van OPHEM 《Regional Sustainability》 2024年第1期80-92,共13页
Rural areas are crucial for a country’s sustainable economy.New strategies are needed to develop rural areas to improve the well-being of rural population and generate new job opportunities.This is especially importa... Rural areas are crucial for a country’s sustainable economy.New strategies are needed to develop rural areas to improve the well-being of rural population and generate new job opportunities.This is especially important in countries where agricultural production accounts for a significant share of the gross product,such as Russia.In this study,we identified the key indicators of satisfaction and differences between rural and urban citizens based on their social,economic,and environmental backgrounds,and determined whether there are well-being disparities between rural and urban areas in the Stavropol Territory,Russia.We collected primary data through a survey based on the European Social Survey framework to investigate the potential differences between rural and urban areas.By computing the regional well-being index using principal component analysis,we found that there was no statistically significant difference in well-being between rural and urban areas.Results of key indicators showed that rural residents felt psychologically more comfortable and safer,assessed their family relationships better,and adhered more to traditions and customs.However,urban residents showed better economic and social conditions(e.g.,infrastructures,medical care,education,and Internet access).The results of this study imply that we can better understand the local needs,advantages,and unique qualities,thereby gaining insight into the effectiveness of government programs.Policy-makers and local authorities can consider targeted interventions based on the findings of this study and strive to enhance the well-being of both urban and rural residents. 展开更多
关键词 WELL-BEING Sustainable development rural areas urban areas Principal component analysis(PCA) RUSSIA
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Influence of Transportation Accessibility on Urban-rural Income Disparity and Its Spatial Heterogeneity
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作者 HUANG Xiaoyan KANG Chenchen +1 位作者 YIN Chun TANG Junqing 《Chinese Geographical Science》 SCIE CSCD 2024年第3期453-467,共15页
Transportation accessibility has been treated as an important means of reducing the urban-rural income disparity.However,only a few studies have examined the effects of different types of transportation accessibility ... Transportation accessibility has been treated as an important means of reducing the urban-rural income disparity.However,only a few studies have examined the effects of different types of transportation accessibility on urban-rural income disparity and their spatial heterogeneity.Based on data from 285 prefecture-level(and above)Chinese cities in 2000,2005,2010,2015,and 2020,this study uses spatial econometric models to examine how highway accessibility and railway accessibility influence the urban-rural income disparity and to identify their spatial heterogeneity.The result reveals that highway accessibility and railway accessibility have‘coreperiphery’ring-like circle structures.The urban-rural income disparity exhibits strong spatial clustering effects.Both highway accessibility and railway accessibility are negatively associated with urban-rural income disparity,and the former having a greater effect size.Moreover,there is a substitution effect between highway accessibility and railway accessibility in the whole sample.Furthermore,these associations differ in geographic regions.In the central region,highway accessibility is more important in reducing the urban-rural income disparity,but its effect is weakened with the increase of railway accessibility.In the western region,railway accessibility has a larger effect on narrowing the urban-rural income disparity,and this effect is strengthened by the increase of highway accessibility.We conclude that improving transportation accessibility is conducive to reducing the urban-rural income disparity but its effect is spatial heterogenetic.Highways and railways should be developed in a coordinated manner to promote an integrated transport network system. 展开更多
关键词 transport accessibility income gap regional divergence spatial heterogeneity urban and rural areas China
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Prevalence of Cardiovascular Risk Factors and Heart Diseases within the Urban and Rural Communities of the Town of Bougouni and Its Surroundings (Southern Mali): A Comparative Study
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作者 Adama Sogodogo René Marie Dakouo +7 位作者 Hamidou Camara Ladji Traore Amadou Coulibaly Hamidou Oumar Ba Noumou Sidibé Ibrahim Sangaré Boubacar Diarra Ichaka Menta 《World Journal of Cardiovascular Diseases》 CAS 2024年第9期603-611,共9页
In Mali, few studies have been conducted on the prevalence of cardiovascular risk factors and diseases according to place of residence. The aim of this study was to assess the prevalence of risk factors and cardiovasc... In Mali, few studies have been conducted on the prevalence of cardiovascular risk factors and diseases according to place of residence. The aim of this study was to assess the prevalence of risk factors and cardiovascular diseases according to residents in town of Bougouni and its rural area (southern Mali). Methods: This was a retrospective descriptive study from February 2019 to March 2024. All patients who visited the “CENTRE MEDICAL DE BOUGOUNI” clinic with known or suspected heart disease during the study period were included. Data were collected from medical records. Incomplete or unusable records were excluded. Data were processed using SPS version 22 software. Results: we included 452 patients with an average age of 50 ± 19 years. High blood pression has been found in 42.70% of cases, with higher prevalence in urban areas (47.01%) than in rural areas (41.50%). Diabetes and smoking were found respectively 5.31% and 8.19% in our population. The prevalence of diabetes was higher in urban areas (5.97%) than rural area (5.35%). smoking prevalence was higher in rural areas (8.49%) than urban areas (6.72%). Alcoholism was found in 2.21% of cases with a little difference between rural area (2.24%) and urban area (2.20%). 31.63% of our patients had no cardiovascular factor. Dyspnea was the reason of consultation in 5.75% of cases and atypical precordialgia in 13.72%. Headaches and dizziness in 8.63% of cases and 21.90% of patients presented other non-specific symptoms. Diagnosis of idiopathic dilated cardiomyopathy was found in 23.45% of cases with higher prevalence in rural areas (28.30%) than urban areas (13.43%). Ischaemic heart disease accounted for 9.29% of cases with a higher prevalence in rural areas (10.38%) than in urban areas (6.71%). PPCMs accounted for 5.98% of cases, with a slight increase in urban areas (6.66%) compared with rural areas (5.68%). Rheumatic valvulopathy accounted for 2.21% of cases;2.84% in rural areas and 0.74% in urban areas. Other valvular diseases accounted for 3.76% of cases;4.73% in rural areas and 1.48% in urban areas. Right heart diseases accounted for 3.98% of cases and stroke for 1.77%. Conclusion: The prevalence of cardiovascular risk factors and heart diseases is high in the rural and urban population of the town of Bougouni and its surroundings (Mali). Excepted smoking, the prevalence of other CV risk factors is higher in urban areas, whereas the prevalence of idiopathic dilated cardiomyopathy and ischemic heart disease is higher in rural areas. These data could serve as a basis for developing tailored preventive strategies, depending on the place of residence. 展开更多
关键词 PREVALENCE Cardiovascular Risk Factors Cardiovascular Diseases rural and urban areas Bougouni-Mali
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Experience of the UK in Urban and Rural Planning System and Rural Planning Management and Recommendations for China
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作者 FENG Wei CUI Jun +3 位作者 SHI Zhifeng ZHANG Qiuling ZHONG Hao MAO Xiangfei 《Journal of Landscape Research》 2018年第5期42-46,共5页
Based on the field survey,training and related literature review of urban and rural planning system and rural planning management and protection in the UK,this paper summarized the development history,basic experience... Based on the field survey,training and related literature review of urban and rural planning system and rural planning management and protection in the UK,this paper summarized the development history,basic experience and main characteristics of the UK's urban and rural planning system and rural planning management.It is intended to analyze its reference significance to China's current efforts to strengthen agricultural and rural planning management,promote urban and rural development,and promote the construction of new urbanization.It was found that the establishment of the UK's urban and rural planning system can be contributed to the problem of "urban diseases" arising from the process of urbanization development.Its development has undergone many revisions and adjustments,and has now formed a two-level planning structure,namely "regional spatial strategies" and "local development framework";the UK's urban and rural planning system stresses the planning management and protection of rural areas and small towns,and has formed a series of important rules and systems.In the process of urbanization development,the UK has completely preserved the historical buildings,local culture and landscape environment of traditional villages,which is worthy of our learning.With reference to the experience of the UK,in the process of coordinating urban and rural development and promoting new urbanization construction,it is recommended to give full play to the guiding role of planning and the participation of the public,attach great importance to the protection and planning management of agriculture and rural areas,and also emphasize the re-innovation based on China's national conditions. 展开更多
关键词 urban and rural planning planning system rural planning MANAGEMENT Small towns urbanization
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Course Teaching Construction of Theory of Urban Planning for Urban and Rural Planning Major
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作者 Li Xiaoyun 《Journal of Landscape Research》 2019年第6期151-153,共3页
Exploring a scientific and reasonable teaching mode, perfecting the teaching system of Theory of Urban Planning course and improving the teaching process are the inevitable choices to achieve a good teaching effect of... Exploring a scientific and reasonable teaching mode, perfecting the teaching system of Theory of Urban Planning course and improving the teaching process are the inevitable choices to achieve a good teaching effect of this course. Starting from the teaching objective orientation and challenges of Theory of Urban Planning, this study put forward guiding suggestions on teaching guiding ideology, content and methods, and evaluation methods to provide reference for improving the teaching quality of courses. 展开更多
关键词 THEORY of urban planning urban and rural planning MAJOR Course teaching
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Design and Study on Management Tools of Land Data Center for Integration of Urban and Rural Areas
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作者 Shiwu XU Xiuzhen LIU 《Journal of Geographic Information System》 2009年第1期42-47,共6页
The rapid development of urbanization requires land management business should change the former single systematic pattern, and advance to integration of functions and data sharing. In order to meets the requirement, ... The rapid development of urbanization requires land management business should change the former single systematic pattern, and advance to integration of functions and data sharing. In order to meets the requirement, this paper presents a new thinking for land management pattern, and management tools of data center for integration of urban and rural areas. The tools were based on MapGIS, which have made the management of multi-subjects, multi-areas, multi-sources and multi-measurement data possible. The techniques of this system are designed accord with national related standard. Experimental result shows that the tools have obvious technical advantage in land resource business integration management. 展开更多
关键词 integration of urban and rural areas TERRITORY RESOURCE DATA center DATA SHARING
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Overall Planning of Development of Urban-Rural Areas:A Policy Mechanism for Urban-Rural Coordinated Growth
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作者 Sun JinSociology Department, China Agricultural University, Beijing 100874, China 《Chinese Journal of Population,Resources and Environment》 2004年第1期57-60,共4页
While analyzing overall planning and coordinated development of urban-rural areas, this paper shows that overall planning for the development of urban-rural areas is a requirement for the best use of productive forces... While analyzing overall planning and coordinated development of urban-rural areas, this paper shows that overall planning for the development of urban-rural areas is a requirement for the best use of productive forces. It means the setting up of a policy mechanism for coordinated growth. Recognizing this, the government should set up a way to lead and manage a unified program to increase service and decrease controlling administration power, while safeguarding and fulfilling the farmers' ownership to the means of production. 展开更多
关键词 Overall planning of development of urban-rural areas Cxjordinated development of urban-rural areas
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Ecological Planning for Urban Green Space System——A Case Study of Chongqing Economic and Technological Development Zone 被引量:1
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作者 阴磊 李国庆 《Agricultural Science & Technology》 CAS 2015年第12期2876-2880,共5页
Based on overview of development history and research advances of do- mestic and foreign urban green space system planning, this paper made clear rele- vant concepts of the urban green space system. Urban green space ... Based on overview of development history and research advances of do- mestic and foreign urban green space system planning, this paper made clear rele- vant concepts of the urban green space system. Urban green space system is a key region for protecting ecological resources. Taking Chongqing Economic and Technological Development Zone as an example, on the basis of in-depth survey, it made a systematic study on green space system planning combining current situa- tions of green space and regional spatial characteristics of Chongqing Economic and Technological Development Zone. It discussed how to restore and build urban green space system, protect ecological environment, and promote regional economic de- velopment and harmony between human and nature through design of ecological technologies and landscape in the ecological planning of urban green space system. 展开更多
关键词 urban areas Green space system Ecological planning
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Study on Conceptual Planning of Group Landscapes in Urban Core Areas—A Case Study of Conceptual Landscape Planning of the Core Area in Shuangsong Group,Wanzhou District of Chongqing City,China
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作者 廖春艳 沈一 《Journal of Landscape Research》 2012年第2期9-11,17,共4页
The planning site was divided into a spatial structure of"one center,one corridor,two axes,two belts and three communities"and traffic system designed to a 3-grade road system of"artery,secondary artery... The planning site was divided into a spatial structure of"one center,one corridor,two axes,two belts and three communities"and traffic system designed to a 3-grade road system of"artery,secondary artery and by-pass".Meanwhile,a 3-ring structure of the planning site was constructed:diffusion waterfront landscape belt,waterfront pathway and core eco-green island.Finally,the planning concepts for major ecological constructions were given.This study tried to explore the group eco-landscape pattern in urban core areas so as to provide a strategic instruction for the regional sustainable development. 展开更多
关键词 urban core areas Ecological landscapes Shuangsong GROUP in Wanzhou DISTRICT of CHONGQING City CONCEPTUAL landscape planning
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The Multi-Scale Numerical Modeling System for Research on the Relationship between Urban Planning and Meteorological Environment 被引量:37
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作者 房小怡 蒋维楣 +7 位作者 苗世光 张宁 徐敏 季崇萍 陈鲜艳 魏建民 王志华 王晓云 《Advances in Atmospheric Sciences》 SCIE CAS CSCD 2004年第1期103-112,共10页
Considering the urban characteristics, a customized multi-scale numerical modeling system is established to simulate the urban meteorological environment. The system mainly involves three spatial scales: the urban sca... Considering the urban characteristics, a customized multi-scale numerical modeling system is established to simulate the urban meteorological environment. The system mainly involves three spatial scales: the urban scale, urban sub-domain scale, and single to few buildings scale. In it, different underlying surface types are employed, the building drag factor is used to replace its roughness in the influence on the urban wind field, the effects of building distribution, azimuth and screening of shortwave radiation are added, and the influence of anthropogenic heating is also taken into account. All the numerical tests indicate that the simulated results are reasonably in agreement with the observational data, so the system can be used to simulate the urban meteorological environment. Making use of it, the characteristics of the meteorological environment from the urban to urban sub-domain scales, even the among-buildings scale, can be recognized. As long as the urban planning scheme is given, the corresponding simulated results can be obtained so as to meet the need of optimizing urban planning. 展开更多
关键词 developing planning in an urban area meteorological environment multi-scale modeling urban planning urban environment
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Influencing Factors for Formation of Urban and Rural Spatial Structure in Metropolis Fringe Area——Taking Shuangliu County of Chengdu in China as a Case 被引量:3
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作者 WANG Kaiyong GAO Xiaolu CHEN Tian 《Chinese Geographical Science》 SCIE CSCD 2008年第3期224-234,共11页
With rapid urbanization process, the pace of urban sprawl has been quickened and most metropolises have ex-perienced expansions in leaps and bounds in suburbanization, which has greatly changed the urban and rural spa... With rapid urbanization process, the pace of urban sprawl has been quickened and most metropolises have ex-perienced expansions in leaps and bounds in suburbanization, which has greatly changed the urban and rural spatial struc-ture of the metropolis fringe area. In this paper, Shuangliu County is taken as a case, since it is a typical fringe area of Chengdu Metropolis. Based on Landsat TM images of Chengdu City and Shuangliu County obtained in 1985, 2000 and 2004, characteristics of urban and rural spatial structure in Shuangliu County were analyzed, such as core-periphery spa-tial structure and some obvious integration trends. Then the influencing factors for the formation of urban and rural spatial structure were identified, including some natural, social, economic and political factors. According to the discussion of this paper, Shuangliu County is undergoing a key transition and reform period. Its formation of urban and rural spatial structure was affected not only by such common factors as the location, natural background, industrial transition, migra-tion, etc., but also by some unique factors such as city planning and policy guidance, which played an important role in accelerating its uneven spatial structure. The understanding of the role of the influencing factors would be useful for car-rying out spatial management and development planning of metropolis fringe area. 展开更多
关键词 urbanIZATION urban and rural spatial structure metropolis fi'inge area China
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A Study on the Factors Influencing the Income Gap between Urban and Rural Areas Based on State-space Model 被引量:2
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作者 Xiaofang ZOU Xueqin JIANG 《Asian Agricultural Research》 2014年第9期1-6,共6页
The increasingly widening income gap between urban and rural areas is affected by many factors. Using the stepwise regression analysis,we find that urbanization level,socio-economic development,education level,financi... The increasingly widening income gap between urban and rural areas is affected by many factors. Using the stepwise regression analysis,we find that urbanization level,socio-economic development,education level,financial development scale and financial development efficiency have the greatest impact on the income gap between urban and rural areas. By cointegration test,it is found that there is a long-term equilibrium relationship between these five variables and the income gap between urban and rural areas. We build the state-space model to research the dynamic impact of these factors on the income gap between urban and rural areas. The results show that by improving the level of urbanization,we can effectively narrow the income gap between urban and rural areas,while socio-economic development,the improvement of education level,expansion of financial development scale and financial development efficiency all significantly expand the income gap between urban and rural areas. 展开更多
关键词 INCOME GAP BETWEEN urban and rural areas State-spa
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Research on the Harmonious Development of New Rural Communities under the Perspective of Balancing Urban and Rural Areas 被引量:2
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作者 ZHANG Jing 《Asian Agricultural Research》 2011年第7期39-42,共4页
On the basis of offering a definition of New Rural Communities (NRCs), the paper analyzes the values of New Rural Communities and argues that the construction of NRCs is able to contribute to the enhancement of the co... On the basis of offering a definition of New Rural Communities (NRCs), the paper analyzes the values of New Rural Communities and argues that the construction of NRCs is able to contribute to the enhancement of the comprehensive agricultural production capability as well as the development of social productivity. Meanwhile the incomes of the rural residents can be boosted, which denotes the realization of a harmonious society where the achievements of China's reform and development are shared by each citizen. Moreover, the construction of NRCs facilitates the economization of land use and thus improves the overall living standard of the residents, while helping to cut the administrative cost and promote democracy at the primary level. This paper also points out various problems arising during the construction of NRCS in China: blindly following suit in accordance with the modes of the urban communities; lack of funds, which leads to the absence of the supporting mechanisms of NRCs; vague positioning and the ensuing shortage of impetus for continued development. Finally, the paper raises the corresponding measures and suggestions: first, based on reality, make overall planning and scientific arrangement; second, the government should play the dominant role while respecting the principal position of the rural residents and introducing the market mechanism; third, increase science and technology input and attach equal importance to economic and social benefits; fourth, broaden fund-raising channels while completing the supervision mechanism. 展开更多
关键词 Balancing urban and rural areas New rural Communities Harmonious development China
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Dynamic Mechanism for Development of Urban and Rural Spatial Integration 被引量:1
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作者 Lufeng DUAN 《Asian Agricultural Research》 2014年第6期33-36,共4页
The space is a place where human beings conduct social and economic activities,and also the carrier of any public living form and right action. Urban area and rural area are two integral parts of regional economic sys... The space is a place where human beings conduct social and economic activities,and also the carrier of any public living form and right action. Urban area and rural area are two integral parts of regional economic system. Without joint and coordinated development of urban and rural areas,it is impossible to realize global optimization of economy and maximization of social welfare. Through study of dynamic mechanism for development of urban and rural spatial integration,it is expected to understand laws,mechanism and means of urban and rural spatial structure evolution,so as to better promote sustainable development of urban and rural population,resources and environment. 展开更多
关键词 urban area rural area SPACE THEORY
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Training Mode of Applied Talents in Urban and Rural Planning Major 被引量:2
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作者 LI Xiaoyun YANG Yiqian 《Journal of Landscape Research》 2020年第1期131-133,共3页
Facing the development and change of contemporary urban and rural planning discipline and social talent demand,it is imperative to develop the talent training of urban and rural planning major.Based on the teaching pl... Facing the development and change of contemporary urban and rural planning discipline and social talent demand,it is imperative to develop the talent training of urban and rural planning major.Based on the teaching platform,this study constructed a perfect talent training mode,implemented modular teaching,took the occupation as the guidance,carried out the application-oriented talent training,and delivered high-quality professionals to the society. 展开更多
关键词 urban and rural planning major APPLICATION Talent training Teaching mode
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Recommendations for Development of Rural Labor Service Economy from the Perspective of Urban and Rural Integration
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作者 Hua ZHANG 《Asian Agricultural Research》 2014年第12期69-71,78,共4页
Rural labor service economy is a method turning rural surplus human resources to economic resources,to realize increase of social wealth. Developing the rural labor service economy has profound influence on promoting ... Rural labor service economy is a method turning rural surplus human resources to economic resources,to realize increase of social wealth. Developing the rural labor service economy has profound influence on promoting transfer and employment of rural surplus labor,and speeding up industrialization and urbanization. Rural labor service economy is a huge and complex systematic project for promoting urban and rural integrated development and increasing farmers' income. This paper firstly analyzed importance and urgency of accelerating the development of rural labor service economy. From the perspective of urban and rural integration,it came up with pertinent recommendations,including establishing security mechanism and improving rural labor security mechanism,creating preferential conditions and encouraging farmers to return to hometown,exploring potential and promoting nearby labor transfer to promote rapid economic development,improving public employment service system,and cultivating and developing labor market. It is expected to provide certain references. 展开更多
关键词 urban and rural INTEGRATION rural areas LABOR serv
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Reform of Rural Land System from the Perspective of New Urbanization
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作者 Jue ZHANG Zhongxiang YU 《Asian Agricultural Research》 2015年第7期64-67,共4页
In view of artificially high urbanization rate of China and possible causes,survey and data analysis methods were used to discuss reform of household registration system,and path for promoting rural land system reform... In view of artificially high urbanization rate of China and possible causes,survey and data analysis methods were used to discuss reform of household registration system,and path for promoting rural land system reform. Results show that it is required to eliminate bottlenecks of land system in the advance of new urbanization process. In line with land system bottlenecks of new urbanization,it is recommended to take following measures.( i) Promoting land right confirmation centered land system reform.( ii) Weakening rural land ownership and stressing land use right.( iii) Establishing urban and rural integrated land market and putting an end to low cost urbanization road.( iv) Realizing asset value of rural construction land and tackling the problem of insufficient construction land.( v) Reforming the land expropriation system and increasing the share of gain in land value to farmers.( vi) Implementing different land policies to promote coordinated development of regional social economy.( vii) Establishing land circulation access system to ensure unchanged land use purpose and high efficient use. 展开更多
关键词 New urbanIZATION rural areas Land SYSTEM REforM
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The Exploration to the Historical Origin of Differences between Urban and Rural Areas in China
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作者 ZHU Hong-liang ZHANG Rui-qing 《Asian Agricultural Research》 2011年第1期118-121,126,共5页
In order to understand the historical origins of encircling the cities from the rural areas implemented by the Communist Party of China and the current dual structures of urban and rural development, urban-rural diffe... In order to understand the historical origins of encircling the cities from the rural areas implemented by the Communist Party of China and the current dual structures of urban and rural development, urban-rural differences are analyzed from the four aspects of production mode, management mode, culture and social division of labor. Industrial development in modern times has promoted the modernization of urban production in China. But the rural areas still maintain their traditional self-sufficient natural economy. After the Opium War, the process of modernization of city politics is promoted by more economic elements of capitalism and the formation of Chinese bourgeoisie. During the management of urban modernization, rural areas still adopt the traditional self-management mode. In the aspect of culture, city is the center of development, having large population, developed traffic, and prosperous culture. But the village is lack of information and its culture is relatively backward. In modern times, affected by the foreign capitalist, urban area has become the center of modern productivity. After separating from agriculture, handicraft industry has transferred into urban areas and the social division of labor in both urban and rural areas has shown great changes. Thus, a new pattern of "Urban Industry, Rural Agriculture" has formed. 展开更多
关键词 urban and rural areas RELATION DIFFERENCE HISTORY China
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Heavy Metals Accumulation in Trees Grown in Urban and Rural Areas
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作者 Shrrog Hammed Hlail 《Journal of Geoscience and Environment Protection》 2019年第8期69-75,共7页
Since heavy metals are the big concerns for the public health today. Metals play a vital role as structural and functional components of proteins and enzymes in cell. The most important pathway of metals to transport ... Since heavy metals are the big concerns for the public health today. Metals play a vital role as structural and functional components of proteins and enzymes in cell. The most important pathway of metals to transport into human is from soil to plant to human, so this study was carried out to measure the contents of heavy metals concentrations in plants leaves from their natural habitats of urban and rural area in Nasiriyah city, Iraq. The study was conducted to investigate the heavy metals content of four plant species of Eucalyptus, Olea, Zizphus and Conocarpus from urban (Nasiriyah city) and rural area (farms north of Nasiriyah). The concentration of heavy metals was tested, including the zinc, copper and lead. Heavy metals were detected using an atomic absorption spectrometer. The results showed that the highest concentration of heavy metals in Olea leaves and Eucalyptus leaves were found from the urban areas. Zn was the most dominant metal whereas Pb had the lowest concentration for all urban and rural area. Among the Eucalyptus, Olea, Zizphus and Conocarpus studied, showed higher heavy metals concentration (Zn, Cu and Pb) than rural area. The results indicated that the Zizphus and Conocarpus leaves of urban and rural area had the lowest heavy metals content compared with Eucalyptus and Olea. The results suggested that Eucalyptus and Olea leaves are good sources to treat the pollution of heavy metals. Our study provides a detailed examination of habitat location and plant species effects on potential of heavy metals in trees. 展开更多
关键词 HEAVY METALS urban and rural Area EUCALYPTUS OLEA Zizphus Conocarpus
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