Study on dynamic change and sustainable utilization evaluation of cultivated land in Hejian City
Cultivated land was an important cornerstone of national survival and develop-ment,the foundation for promoting agricultural production and ensuring food security,and the important guarantee for maintaining national economic security and social stability.Cul-tivated land resources were the basis of agricultural production,and agricultural development was inseparated from the sustainable utilization of cultivated land.In order to ensure food se-curity and promote the sustainable development of social economy,this paper took Hejian City as the research area,adopted the land use dynamic attitude and other methods to study the cultivated land in Hejian City,selected evaluation indicators,constructed a sustainable use evaluation system for cultivated land,and used multi-factor weighted summation to con-duct district research on Hejian cultivated land.The results showed that:(1)From 2010 to 2019,the cultivated land area decreased by 12 713.71 hm2,and the cultivated land occupied more;From 2016 to 2019,irrigated land decreased significantly,the area decreased to 10 318.99 hm2.From 2010 to 2019,the total area of dryland decreased by 3 920.76 hm2.O-verall,the area of arable land decreased sharply.(2)To evaluate and analyze the sustainable utilization of cultivated land resources in Hejian City,the cultivated land was divided into four levels,and the results of the zoning were divided into sustainable area,general sustain-able area,preliminary sustainable area and weak sustainable area.(3)Put forward corre-sponding countermeasures for each zone to promote the improvement of cultivated land quality.
cultivated land resourcesustainable usezonal evaluationGISHejian City
NETL
NSTL
万方数据
