河间市耕地动态变化及可持续利用评价研究

Study on dynamic change and sustainable utilization evaluation of cultivated land in Hejian City

耕地是国家生存发展的重要基石,是促进农业生产、保障粮食安全的基础,也是维护国家经济安全、社会稳定的重要保障。耕地资源是进行农业生产的基础,而且农业的发展离不开耕地的可持续利用。为了保障粮食安全,促进社会经济的可持续发展,以河间市为研究区域,采用土地利用动态度等方法,对河间市耕地进行研究,选取评价指标,构建耕地可持续利用评价体系,运用多因子加权求和法对河间市耕地进行分区研究。结果表明:(1)在2010-2019年间,耕地面积减少12713.71 hm^(2),耕地占用较多;在2016-2019年间,水浇地大量减少,减少量高达10.318.99 hm^(2);在2010-2019年间,旱地面积共减少3920.76 hm^(2)。总体来看,耕地面积在急剧减少。(2)对河间市耕地资源可持续利用评价分析,将河间市区域内的耕地划分为4个等级,分区结果为:可持续区、一般可持续区、初步可持续区以及弱持续区。(3)为各区提出相应的对策,促进耕地质量的提升。

Cultivated land was an important cornerstone of national survival and development,the foundation for promoting agricultural production and ensuring food security,and the important guarantee for maintaining national economic security and social stability.Cultivated 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 security 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 conduct district research on Hejian cultivated land.The results showed that:(1)From 2010 to 2019,the cultivated land area decreased by 12713.71 hm^(2),and the cultivated land occupied more;From 2016 to 2019,irrigated land decreased significantly,the area decreased to 10318.99 hm^(2).From 2010 to 2019,the total area of dryland decreased by 3920.76 hm 2.Overall,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 sustainable area,preliminary sustainable area and weak sustainable area.(3)Put forward corresponding countermeasures for each zone to promote the improvement of cultivated land quality.