摘要
耕地资源是土地的精华,是农业生产最基本的和不可替代的生产资料,是人类进行物质生产、获得食物的保障。耕地预警研究受到越来越多的关注。从预警体系和土地利用/土地覆盖模型两个方面对国外研究进展进行了介绍;并从耕地数量变化、区域可持续发展、研究方法、评价指标体系和研究区域等多角度对国内研究进展进行综述,最后提出我国耕地预警研究发展趋势。
Cultivated land resource is the pick of the basket of land,the production that most basic and can not substitute for agricultural production,also is the guarantee of human production and feeding. Study of cultivated land early warning has been given incresing attentions. This article introduced abroad research advances from the early warning systems and the land use / land cover models,and introduced domestic research progress from the quantity changes of cultivated land,region- al sustainable development, research methods, the evaluation indicator system and the study area. Finally, the development trend of Chinas cultivated land early warning was put forward.
出处
《黑龙江农业科学》
2009年第4期142-144,共3页
Heilongjiang Agricultural Sciences
关键词
耕地
预警体系
进展
cultivated land
early waming
progress
