Using innovative information means to form the digital management sys- tem of rural residential land is the key point to solve the difficult and hot issues in rural residential land management. In view of the diversit...Using innovative information means to form the digital management sys- tem of rural residential land is the key point to solve the difficult and hot issues in rural residential land management. In view of the diversity, large quantity, and preservation with paper of rural residential land data, a new method for automatic cutting and classification of digital images based on the image data source and us- ing the image processing algorithm and Python programming was proposed in order to achieve rapid and accurate collection and digital storage of rural residential land cadastral data. Using this method, digital image automatic cutting and classification were realized, and the efficiency and accuracy of this method was validated by comparing with the non-support free shooting method and manual image process- ing. The experimental results showed that the efficiency of the data acquisition of the fixed shooting method was 4.24 times of that of the non-support free shooting method with the accuracy rate increasing by 7.1%, and the efficiency of automatic image processing was 35 times of that of manual processing. Based on rapid and accuracy data acquisition, this method realized the automatic processing of digital images, which provided a reference for the research of informatization technology of the whole rural residential land data and has the value of popularization and appli- cation.展开更多
On the basis of rural household survey in 12 provinces of China in 2005,this research built an econometrical model to find the area standard for rural housing land.This standard is expected to facilitate rural housing...On the basis of rural household survey in 12 provinces of China in 2005,this research built an econometrical model to find the area standard for rural housing land.This standard is expected to facilitate rural housing land administration,efficient and intensive housing land use and policy making.This research concludes:1) according to the household survey data,the average area for rural housing land in China is about 235.26 m 2,and the rural housing land mainly includes unused land(42.89%) and house construction land(37.76%) with the average floor-area ratio of 0.42;2) the indexes in the standard concern the factors such as location,landform,house form,household population and cultivated land area per farmer,which all have significant effects on rural housing land use;3) the reasonable area for rural housing land may be 150 m 2 in average before 2020,and the referential standards in different provinces are 120 m 2,130 m 2,140m 2,150 m 2,160 m 2,170 m 2,190 m 2,200 m 2,210 m 2,220 m 2,230 m 2 and 250 m 2 respectively;and 4) if there are less than two persons or more than five persons in a family,these standards need to be decreased or increased by 7%.When the cultivated land area per farmer is lower than the provincial average,the standards have to reduce by 3.5%.展开更多
The rural homestead is a major part of the rural land system,which is an important carrier of various rural issues such as rural decline,rural hollowing and others.Great changes have occurred in China’s rural areas,w...The rural homestead is a major part of the rural land system,which is an important carrier of various rural issues such as rural decline,rural hollowing and others.Great changes have occurred in China’s rural areas,while the rural homestead has also undergone transformation.Based on summarizing the multi-functional classification of homesteads from previous research,this study divided and defined the population bearing function,assets,and residential function of homesteads from the perspective of functional improvement according to the results of a survey questionnaire.Using Poyang County as the case study,this paper analyzed the functional transformation of rural homesteads through the model of coordinated transformation degree.The results demonstrated the following trends.(1)From 2000 to 2017,the transformation degrees of rural homestead functions in Poyang County have obviously improved overall.(2)The high value areas of the transformation degrees were mainly distributed in the northern hilly region and around Poyang Lake,while most of the low value areas were distributed in the plain areas near the county town.(3)In the regions with better location conditions and resource endowments,the basic conditions and trend of non-agriculturalization of the population,capital and other factors are more significant.According to the differentiation of rural homestead transformations which occurred in different regions,the government could put forward targeted development suggestions for the future.展开更多
基金Supported by the Key Project of Science Research Foundation of Yunnan Provincial Department of Education(2013Z084)the General Project of Science Research Foundation of Yunnan Provincial Department of Education(2011C137)the Construction Project of Kunming Research Center of Kunming Forestry Information Engineering Technology(215301)
文摘Using innovative information means to form the digital management sys- tem of rural residential land is the key point to solve the difficult and hot issues in rural residential land management. In view of the diversity, large quantity, and preservation with paper of rural residential land data, a new method for automatic cutting and classification of digital images based on the image data source and us- ing the image processing algorithm and Python programming was proposed in order to achieve rapid and accurate collection and digital storage of rural residential land cadastral data. Using this method, digital image automatic cutting and classification were realized, and the efficiency and accuracy of this method was validated by comparing with the non-support free shooting method and manual image process- ing. The experimental results showed that the efficiency of the data acquisition of the fixed shooting method was 4.24 times of that of the non-support free shooting method with the accuracy rate increasing by 7.1%, and the efficiency of automatic image processing was 35 times of that of manual processing. Based on rapid and accuracy data acquisition, this method realized the automatic processing of digital images, which provided a reference for the research of informatization technology of the whole rural residential land data and has the value of popularization and appli- cation.
基金Under the auspices of National Natural Science Foundation of China (No. 41001108,40971107)Beijing MunicipalNatural Science Foundation (No. 9113029)
文摘On the basis of rural household survey in 12 provinces of China in 2005,this research built an econometrical model to find the area standard for rural housing land.This standard is expected to facilitate rural housing land administration,efficient and intensive housing land use and policy making.This research concludes:1) according to the household survey data,the average area for rural housing land in China is about 235.26 m 2,and the rural housing land mainly includes unused land(42.89%) and house construction land(37.76%) with the average floor-area ratio of 0.42;2) the indexes in the standard concern the factors such as location,landform,house form,household population and cultivated land area per farmer,which all have significant effects on rural housing land use;3) the reasonable area for rural housing land may be 150 m 2 in average before 2020,and the referential standards in different provinces are 120 m 2,130 m 2,140m 2,150 m 2,160 m 2,170 m 2,190 m 2,200 m 2,210 m 2,220 m 2,230 m 2 and 250 m 2 respectively;and 4) if there are less than two persons or more than five persons in a family,these standards need to be decreased or increased by 7%.When the cultivated land area per farmer is lower than the provincial average,the standards have to reduce by 3.5%.
基金The National Natural Science Foundation of China(41561039)。
文摘The rural homestead is a major part of the rural land system,which is an important carrier of various rural issues such as rural decline,rural hollowing and others.Great changes have occurred in China’s rural areas,while the rural homestead has also undergone transformation.Based on summarizing the multi-functional classification of homesteads from previous research,this study divided and defined the population bearing function,assets,and residential function of homesteads from the perspective of functional improvement according to the results of a survey questionnaire.Using Poyang County as the case study,this paper analyzed the functional transformation of rural homesteads through the model of coordinated transformation degree.The results demonstrated the following trends.(1)From 2000 to 2017,the transformation degrees of rural homestead functions in Poyang County have obviously improved overall.(2)The high value areas of the transformation degrees were mainly distributed in the northern hilly region and around Poyang Lake,while most of the low value areas were distributed in the plain areas near the county town.(3)In the regions with better location conditions and resource endowments,the basic conditions and trend of non-agriculturalization of the population,capital and other factors are more significant.According to the differentiation of rural homestead transformations which occurred in different regions,the government could put forward targeted development suggestions for the future.
