On the tranquil waters of Xiaoshanyang,a small lake in Deqing County,Zhejiang Province,rows of white,spherical buoys are lined up in perfect order,resembling strands of pearl necklaces.Once a thousand-year-old pearl-f...On the tranquil waters of Xiaoshanyang,a small lake in Deqing County,Zhejiang Province,rows of white,spherical buoys are lined up in perfect order,resembling strands of pearl necklaces.Once a thousand-year-old pearl-farming site,this heritage-rich waterbody has emerged as a global benchmark for the preservation of agricultural heritage.展开更多
The spatialization of population of counties in China is significant. Firstly, we can gain the estimated values of population density adaptive to different kinds of regions. Secondly, we can integrate effectively popu...The spatialization of population of counties in China is significant. Firstly, we can gain the estimated values of population density adaptive to different kinds of regions. Secondly, we can integrate effectively population data with other data including natural resources, environment, society and economy, build 1km GRIDs of natural resources reserves per person, population density and other economic and environmental data, which are necessary to the national management and macro adjustment and control of natural resources and dynamic monitoring of population. In order to establish population information system serving national decision making, three steps ought to be followed:1) establishing complete geographical spatial data foundation infrastructure including the establishment of electric map of residence with high resolution using topographical map with large scale and high resolution satellite remote sensing data, the determination of attribute information of housing and office buildings, and creating complete set of attribute database and rapid data updating; 2) establishing complete census systems including improving the transformation efficiency from census data to digital database and strengthening the link of census database and geographical spatial database, meanwhile, the government should attach great importance to the establishment and integration of population migration database; 3) considering there is no GIS software specially serving the analysis and management of population data, a practical approach is to add special modules to present software system, which works as a bridge actualizing the digitization and spatialization of population geography research.展开更多
Deqing,a county in Zhejiang Province,is known as a“land of water”for its intri-cate network of waterways,canals and lakes.This abundance of water provides a strong foundation for freshwater aquaculture,fostering the...Deqing,a county in Zhejiang Province,is known as a“land of water”for its intri-cate network of waterways,canals and lakes.This abundance of water provides a strong foundation for freshwater aquaculture,fostering the production of lustrous pearls.For centuries,the people of Deqing have practiced a unique freshwater pearl composite farming system cen-tered on"fish-mussel co-culture."展开更多
文摘On the tranquil waters of Xiaoshanyang,a small lake in Deqing County,Zhejiang Province,rows of white,spherical buoys are lined up in perfect order,resembling strands of pearl necklaces.Once a thousand-year-old pearl-farming site,this heritage-rich waterbody has emerged as a global benchmark for the preservation of agricultural heritage.
文摘The spatialization of population of counties in China is significant. Firstly, we can gain the estimated values of population density adaptive to different kinds of regions. Secondly, we can integrate effectively population data with other data including natural resources, environment, society and economy, build 1km GRIDs of natural resources reserves per person, population density and other economic and environmental data, which are necessary to the national management and macro adjustment and control of natural resources and dynamic monitoring of population. In order to establish population information system serving national decision making, three steps ought to be followed:1) establishing complete geographical spatial data foundation infrastructure including the establishment of electric map of residence with high resolution using topographical map with large scale and high resolution satellite remote sensing data, the determination of attribute information of housing and office buildings, and creating complete set of attribute database and rapid data updating; 2) establishing complete census systems including improving the transformation efficiency from census data to digital database and strengthening the link of census database and geographical spatial database, meanwhile, the government should attach great importance to the establishment and integration of population migration database; 3) considering there is no GIS software specially serving the analysis and management of population data, a practical approach is to add special modules to present software system, which works as a bridge actualizing the digitization and spatialization of population geography research.
文摘Deqing,a county in Zhejiang Province,is known as a“land of water”for its intri-cate network of waterways,canals and lakes.This abundance of water provides a strong foundation for freshwater aquaculture,fostering the production of lustrous pearls.For centuries,the people of Deqing have practiced a unique freshwater pearl composite farming system cen-tered on"fish-mussel co-culture."
