首页 >  1999, Vol. 3, Issue (2) : 134-138

摘要

全文摘要次数: 4159 全文下载次数: 35
引用本文:

DOI:

10.11834/jrs.19990211

收稿日期:

1998-05-20

修改日期:

1998-09-07

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基于遥感和GIS的中国土地利用/土地覆盖的现状研究
中国科学院遥感应用研究所,北京100101
摘要:

通过利用土地利用程度指数和植被指数等指标,采用GIS工具和数学模型方法,对中国土地利用/土地覆盖的现状进行分析,结论为:中国现有土地覆盖状况代表着中国总的土地利用程度指数为202的一种开发利用水平。从土地利用程度指数极限为400看,中国土地资源总的开发程度仅达开发极限的一半;东部湿润区以耕地型覆盖为主,开发利用程度高;西北地区以未利用土地覆盖型为主,土地利用程度低。中国植被指数值的大小分布同中国植被类型分布密切相关,其值大小分布也反映了中国水热的空间分布格局。

The Research of Chinese Land use/Land cover Present Situations
Abstract:

Based on the used degree index of land resources and NDVI (Normalized Difference Vegetation Index), the present situations of Chinese land use/land cover were analyzed with modeling methods. The conclusions are that the Chinese present la nd cover situation reflects the development and the used level of the Chinese l and used degree index value 202. From the limited value 400 of land used degree index, Chinese land resources have reached the half of its used limited value; i n the eastern China, the land is mainly covered with cultivated land type and th e degree of land use is high; in the western China, the land is mainly covered with unused land type and the degree of land use is low. The relations exist be tween the distribution of Chinese NDVI and the distribution of Chinese vegetatio n types. The distribution of Chinese NDVI is a reflection of the distributive co ndition of Chinese precipitation and temperature. The areas covered with agricul tural vegetation type are almostly situated in the eastern China, and the value of land used degree index is high in this area.

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