摘要
简述了中国河南省的区域概况，介绍了生态足迹模型的原理及生态足迹与生态承载力的计算公式。根据河南省1998-2007年的相关数据，首先计算了河南省人均生态足迹和人均生态承载力。结果表明：1998-2007年，河南省耕地表现为生态盈余，耕地利用处于可持续发展状态，且生态盈余自2003年以来一直处于持续增长状态。其次，对河南省耕地生态足迹进行了动态分析。再次，研究了2007年河南省18个地市的人均生态需求与供给情况。18个地市的耕地呈可持续发展状态，生态盈余和人均生态承载力最多的是驻马店市，人均生态足迹最高的是南阳市。基于此，提出了保证粮食增产的5点建议。
Regional situation of Henan Province in China was summarized. The principle of ecological footprint model as well as the computing formulas of ecological footprint and ecological capacity was analyzed. According to the related data of Henan Province from 1998 to 2007, firstly, per capita ecological footprint and per capita ecological capacity were calculated. The results showed that cultivated land in Henan Province showed ecological surplus. Land use was sustainable, and ecological surplus had increased since 2003. Secondly, ecological footprint of cultivated land was analyzed dynamically. Thirdly, per capital ecological demand and supply in 18 districts and cities of Henan province during 2007 were studied. Cultivated land in these areas was sustainable. Zhumadian City had the highest ecological surplus and per capita ecological capacity, and Nanyang City had the highest per capita ecological footprint. Based on this, five proposals were put forward on ensuring the increase of grain yield.
出处
《安徽农业科学》
CAS
北大核心
2009年第29期14288-14289,共2页
Journal of Anhui Agricultural Sciences
关键词
生态足迹
耕地
可持续利用
Ecological footprint
Cultivate land
Sustainable utilization
