Rural revitalization strategy is an important strategic layout of rural development in the new era of the CPC Central Committee,and scientific and reasonable determination of village types is an important measure to p...Rural revitalization strategy is an important strategic layout of rural development in the new era of the CPC Central Committee,and scientific and reasonable determination of village types is an important measure to promote rural revitalization by classification.The villages of Wan’an County were selected as the research object.Firstly,the factors that have a key impact on the development of the villages were extracted and qualitatively analyzed to preliminarily screen and judge their types.Secondly,the evaluation index system of development potential of the villages was constructed to quantitatively evaluate and reasonably classify the villages.Finally,the spatial distribution characteristics and quantity of different villages were revealed,and differentiated development strategies were proposed.展开更多
[Objective] The aim was to research development plan of major agriculture-oriented county （MAOA or MAOC hereafter） based on territorial function. [Method] The relationship between Major Function Oriented Zoning （MF...[Objective] The aim was to research development plan of major agriculture-oriented county （MAOA or MAOC hereafter） based on territorial function. [Method] The relationship between Major Function Oriented Zoning （MFOZ hereafter） and agricultural development is explored with the case of Long＇an County in Guangxi. [Result] In the research, agricultural function, featured by composition and diversification, is considered one of territorial function typs, contributed by ecology, land, industries and population. With Long＇an as a study case, it can be concluded that the plan of major agriculture-oriented counties is as follows： With guidance of territorial function, the counties should formulate the strategies of major function oriented zones, strive for more social and economic resources for agricultural development, extend agricultural functions, enhance the role of agricultural additional functions, strengthen ecological conservation, improve agricultural productivity and transportation, reinforce exchange of countryside with other regions. In addition, attention should be paid to reconstruction of population and industry pattern for redistribution on the basis of evaluation on bearing capacity of resources and environment. [Conclusion] In future, major agriculture oriented county should coordinate relationship among agriculture, industries, ecology and population with rational distribution of territorial function in county to guarantee stable and sustainable agricultural development.展开更多
The landscape pattern of Da’an County, Northeast China has undergone significant changes since the 1950s as a result of climatic change and human activities. The aim of this paper is to quantitatively study landscape...The landscape pattern of Da’an County, Northeast China has undergone significant changes since the 1950s as a result of climatic change and human activities. The aim of this paper is to quantitatively study landscape pattern and its spatial dynamics of Da’an County at the landscape level over the nearly 50-year span. Patch dynamics were examined ac-cording to land use and land cover change processes built from a series of images, as well as topographic maps, and tem-poral patterns built from landscape pattern metrics. The transition matrix of landscape patch types and changes of various landscape metrics were applied. The results showed that, from 1956 to 2000, the landscape within the study area had un-dertaken a complicated evolution in landscape structure and composition. The outstanding characteristic is that sa-line-alkali land increased and grassland decreased. As some smaller patches amalgamated, the heterogeneity of patch de-creased. All those changes were the synthetic result of both climatic and anthropogenic influences, but the predominant factor was different in different parts. In the southern part of the study area, the landscape pattern changes resulted from the modification of climate obviously, while in the northern part, the landscape pattern changes were mainly caused by human activities, such as the conversion between farmland and saline-alkali land. This phenomenon showed that human activities played more important role in the north than in the south of Da’an County.展开更多
[Objective] To study current development and utilization of water resources in Yuan'an County and countermeasures. [Method] On the basis of analyzing basic characteristics of water resources in Yuan'an County ...[Objective] To study current development and utilization of water resources in Yuan'an County and countermeasures. [Method] On the basis of analyzing basic characteristics of water resources in Yuan'an County as well as its current development and utilization, problems in the development and utilization of water resources in the study area were pointed out, and feasible countermeasures were proposed correspondingly. [Result] The county is endowed with rich water resources, but the overall use efficiency is low. There are many problems in the development and utilization of local water resources, such as pollution of water source, water and soil loss and so on. [Conclusion] In view of the problems, feasible suggestions were given to provide scientific support for the reasonable development and utilization of water resources in Yuan'an County.展开更多
Relying on the national rural revitalization policy and the policy of green rise of Jiangxi,the development of rural tourism in Wan’an County has ushered in new opportunities,and traffic accessibility is one of the i...Relying on the national rural revitalization policy and the policy of green rise of Jiangxi,the development of rural tourism in Wan’an County has ushered in new opportunities,and traffic accessibility is one of the important factors to be considered in rural tourism.Based on the accessibility evaluation method of the shortest travel time of highway traffic,this paper analyzes the accessibility of current tourism projects in Wan’an County.Research results show that;①the accessibility of rural tourism projects in Wan’an County is basically good except the Tianhu Mountain;②the accessibility of rural tourism projects in Wan’an County is strong in the north and weak in the south;③the transportation network serving the rural tourism in the north of Wan’an County is relatively perfect,while S221 Provincial Highway,Daqing-Guangzhou Expressway and Wan’an-Baoshan County Road play an important role in the rural tourism project in the south of Wan’an County.展开更多
The unbalance development of education is a widespread problem around the world, and the most outstanding of it is the lag of the education development of minority regions. For the sake of developing the education of ...The unbalance development of education is a widespread problem around the world, and the most outstanding of it is the lag of the education development of minority regions. For the sake of developing the education of minority regions, the government adopted a lot of policies and measures, enacting special education policies is the important matter among them. The paper tries to take Du＇an autonomous county, Guangxi autonomous region as a case to explore the problems in the executive condition of minority regions＇ special education policies, and gives the suggestion for the government to accelerate the education development of minority regions.展开更多
This year marks the 400th anniversary of the death of Tang Xianzu,the iconic dramatist of the Ming Dynasty(1368-1644),and the80th anniversary of the heroic Long March,which gave rise to modern China.On July 7,the laun...This year marks the 400th anniversary of the death of Tang Xianzu,the iconic dramatist of the Ming Dynasty(1368-1644),and the80th anniversary of the heroic Long March,which gave rise to modern China.On July 7,the launching ceremony of a commemorative journey—called the Dream-Seeking Journey to Fuzhou—took place in Liukeng,Le’an county,Fuzhou,Jiangxi province,Tang’s homeland,with展开更多
This research studies the reliability of an activated carbon permeable reactive barrier in removing cadmium from a contaminated shallow aquifer.Laboratory tests have been performed to characterize the equilibrium and ...This research studies the reliability of an activated carbon permeable reactive barrier in removing cadmium from a contaminated shallow aquifer.Laboratory tests have been performed to characterize the equilibrium and kinetic adsorption properties of the activated carbon in cadmium-containing aqueous solutions.A 2D numerical model has been used to describe pollutant transport within a groundwater and the pollutant adsorption on the permeable reactive barrier(PRB).In particular,it has been considered the case of a PAB used to protect a lake or downstream from Cd(II)contaminated groundwater.Numerical results show that the PAB can achieve a long-term efficiency by preventing lake or downstream pollution for several months.展开更多
文摘Rural revitalization strategy is an important strategic layout of rural development in the new era of the CPC Central Committee,and scientific and reasonable determination of village types is an important measure to promote rural revitalization by classification.The villages of Wan’an County were selected as the research object.Firstly,the factors that have a key impact on the development of the villages were extracted and qualitatively analyzed to preliminarily screen and judge their types.Secondly,the evaluation index system of development potential of the villages was constructed to quantitatively evaluate and reasonably classify the villages.Finally,the spatial distribution characteristics and quantity of different villages were revealed,and differentiated development strategies were proposed.
基金Supported by Key Program of National Natural Science Foundation of China(40830741)~~
文摘[Objective] The aim was to research development plan of major agriculture-oriented county （MAOA or MAOC hereafter） based on territorial function. [Method] The relationship between Major Function Oriented Zoning （MFOZ hereafter） and agricultural development is explored with the case of Long＇an County in Guangxi. [Result] In the research, agricultural function, featured by composition and diversification, is considered one of territorial function typs, contributed by ecology, land, industries and population. With Long＇an as a study case, it can be concluded that the plan of major agriculture-oriented counties is as follows： With guidance of territorial function, the counties should formulate the strategies of major function oriented zones, strive for more social and economic resources for agricultural development, extend agricultural functions, enhance the role of agricultural additional functions, strengthen ecological conservation, improve agricultural productivity and transportation, reinforce exchange of countryside with other regions. In addition, attention should be paid to reconstruction of population and industry pattern for redistribution on the basis of evaluation on bearing capacity of resources and environment. [Conclusion] In future, major agriculture oriented county should coordinate relationship among agriculture, industries, ecology and population with rational distribution of territorial function in county to guarantee stable and sustainable agricultural development.
基金Under the auspices of National Natural Science Foundation of China (No. 40401003)Knowledge Innovation Program of Chinese Academy of Sciences (No. KZCX3-SW-356)Key Project of Chinese Academy of Sciences for Developing Science and Technology of Northeast China (DBZX-2-030)
文摘The landscape pattern of Da’an County, Northeast China has undergone significant changes since the 1950s as a result of climatic change and human activities. The aim of this paper is to quantitatively study landscape pattern and its spatial dynamics of Da’an County at the landscape level over the nearly 50-year span. Patch dynamics were examined ac-cording to land use and land cover change processes built from a series of images, as well as topographic maps, and tem-poral patterns built from landscape pattern metrics. The transition matrix of landscape patch types and changes of various landscape metrics were applied. The results showed that, from 1956 to 2000, the landscape within the study area had un-dertaken a complicated evolution in landscape structure and composition. The outstanding characteristic is that sa-line-alkali land increased and grassland decreased. As some smaller patches amalgamated, the heterogeneity of patch de-creased. All those changes were the synthetic result of both climatic and anthropogenic influences, but the predominant factor was different in different parts. In the southern part of the study area, the landscape pattern changes resulted from the modification of climate obviously, while in the northern part, the landscape pattern changes were mainly caused by human activities, such as the conversion between farmland and saline-alkali land. This phenomenon showed that human activities played more important role in the north than in the south of Da’an County.
文摘[Objective] To study current development and utilization of water resources in Yuan'an County and countermeasures. [Method] On the basis of analyzing basic characteristics of water resources in Yuan'an County as well as its current development and utilization, problems in the development and utilization of water resources in the study area were pointed out, and feasible countermeasures were proposed correspondingly. [Result] The county is endowed with rich water resources, but the overall use efficiency is low. There are many problems in the development and utilization of local water resources, such as pollution of water source, water and soil loss and so on. [Conclusion] In view of the problems, feasible suggestions were given to provide scientific support for the reasonable development and utilization of water resources in Yuan'an County.
文摘Relying on the national rural revitalization policy and the policy of green rise of Jiangxi,the development of rural tourism in Wan’an County has ushered in new opportunities,and traffic accessibility is one of the important factors to be considered in rural tourism.Based on the accessibility evaluation method of the shortest travel time of highway traffic,this paper analyzes the accessibility of current tourism projects in Wan’an County.Research results show that;①the accessibility of rural tourism projects in Wan’an County is basically good except the Tianhu Mountain;②the accessibility of rural tourism projects in Wan’an County is strong in the north and weak in the south;③the transportation network serving the rural tourism in the north of Wan’an County is relatively perfect,while S221 Provincial Highway,Daqing-Guangzhou Expressway and Wan’an-Baoshan County Road play an important role in the rural tourism project in the south of Wan’an County.
文摘The unbalance development of education is a widespread problem around the world, and the most outstanding of it is the lag of the education development of minority regions. For the sake of developing the education of minority regions, the government adopted a lot of policies and measures, enacting special education policies is the important matter among them. The paper tries to take Du＇an autonomous county, Guangxi autonomous region as a case to explore the problems in the executive condition of minority regions＇ special education policies, and gives the suggestion for the government to accelerate the education development of minority regions.
文摘This year marks the 400th anniversary of the death of Tang Xianzu,the iconic dramatist of the Ming Dynasty(1368-1644),and the80th anniversary of the heroic Long March,which gave rise to modern China.On July 7,the launching ceremony of a commemorative journey—called the Dream-Seeking Journey to Fuzhou—took place in Liukeng,Le’an county,Fuzhou,Jiangxi province,Tang’s homeland,with
基金Supported by Project of National Key Programof Technology R&D the11th Five-year Plan(Nos.2007BAB28B04-03,2006BAB04A09-02)China Geological Survey Program(No.2003104001)+2 种基金Jilin Province Key Project of Science and Technology(Nos.20020401,20080543)Jilin Province KeyProject of Water Resources(Nos.YN20060328,HDS20060629)NSFC Project(No.40672157)
文摘This research studies the reliability of an activated carbon permeable reactive barrier in removing cadmium from a contaminated shallow aquifer.Laboratory tests have been performed to characterize the equilibrium and kinetic adsorption properties of the activated carbon in cadmium-containing aqueous solutions.A 2D numerical model has been used to describe pollutant transport within a groundwater and the pollutant adsorption on the permeable reactive barrier(PRB).In particular,it has been considered the case of a PAB used to protect a lake or downstream from Cd(II)contaminated groundwater.Numerical results show that the PAB can achieve a long-term efficiency by preventing lake or downstream pollution for several months.
