摘要
为了解处在转型期的工矿城市——六盘水的耕地资源安全状况,实现耕地资源的可持续利用,以1990—2015年研究区土地利用数据为基础提取耕地数据,从耕地数量、耕地质量、耕地生态安全三个方面选取评价指标,对六盘水的耕地资源安全和警情进行分析。结果显示:在整体上看,研究时段内,六盘水市耕地资源综合评价指数呈上升趋势,综合指数由1990年的0.4139上升为2015年的0.7937,安全等级明显提升,警度由中警降至无警,在2005年出现最低值0.3941,警度为重警。
In order to realize the security of cultivated land resources in Liupanshui city,and to achieve sustainable use of cultivated land resource,this article evaluates the security of cultivated land resources in Liupanshui city,and selects evaluation index from the cultivated land quantity,cultivated land quality and cultivated land ecological safety aspects. Results show that,as a whole,the evaluation index of cultivated land resources in Liupanshui City shows a rising trend during our study period. From 1990 to 2015,the comprehensive index rose to 0. 7937 from 0. 4139. The security grade of cultivated land resources is significantly increased. The warning degree is reduced from middle alarm state to non-alarm state. The comprehensive index is 0. 3941 in 2005,and The warning degree is severe alarm state.
出处
《贵州师范学院学报》
2017年第9期29-33,共5页
Journal of Guizhou Education University
基金
贵州省科技厅联合基金项目(黔科合LH字[2014]7459号)
贵州省教育厅自然科学研究重点项目(黔教合KY字[2013]173号)
关键词
耕地资源
安全评价
警情
六盘水市
Cultivated land resources
Safety evaluation
Alert - situation
Liupanshui city
