摘要
农用地(主要是耕地)集约利用是保障经济社会可持续发展的必要条件。以保定市22个县(市)的耕地为研究对象,建立了耕地集约利用指标体系,采用熵值法分别从土地投入强度、土地利用强度、土地产出效果、社会生态效益4个方面对耕地进行集约评价,并将评价结果分为4个等级。结果表明:保定市耕地集约利用水平总体不高,集约分值约为0.57,处于一般集约水平。从时间序列上看,1995—2010年耕地集约利用分值呈现上下小幅度波动趋势,1995年和2010年集约分值基本持平,集约程度变化不大;从空间序列上看,耕地同一级别集约范围变化不大,整个保定市呈现出东部集约程度高,西部集约度相对低的空间分布特征。研究结果可为保定市耕地集约利用水平提高以及农业的持续发展提供科学依据。
The intensive use of agricultural land（cultivated land） is a necessary condition for sustainable devel- opment of economy and society. Taking 22 counties （cities） of cultivated land in Baoding City as the research objects, the land intensive use quantifying appraisal to the a cultivated land was carried on through building index system from 4 aspects （input intensity, land use intensity, land productivity effect, social and ecologi- cal benefits）with the entropy method, and the evaluation results was divided into 4 levels. The result showed that intensive score presented a small upper and lower amplitude fluctuation trend of cultivated land intensive use level from 1995 to 2010 in Baoding, whose intensive score was essentially flat in 1995 and 2010 though its current level, was not high in overall with an intensive score of 5.70; the scope of intensive cultivated land use changed little with spatial distribution of a higher intensity in eastern area and relatively low intensity in western regions. The results will provide a scientific basis for improving the level of intensive use of cultivat- ed land for Baoding as well as the sustainable development of agriculture.
出处
《水土保持研究》
CSCD
北大核心
2014年第1期229-233,239,共6页
Research of Soil and Water Conservation
基金
河北省社会科学发展研究项目(201203073)
保定市哲学社会科学基金项目(201201185)
关键词
耕地
集约利用
熵值法
时空变异
保定市
cultivated land
intensive use
entropy method
spatiotemporal variation
Baoding City
