摘要
2007年青海省首次采用3S技术与地面调查相结合的方法完成了全境范围的草地退化调查,全面掌握了退化草地的类型分布、面积、现状及动态数据,在此基础上,研究和完善了草地退化调查的分级指标。本文依据农业部有关退化草地的标准和规定,在认真总结草地退化调查结果的基础上,介绍了青海省天然草地退化调查的主要方法,为今后开展退化草地调查提供参考依据。
In 2007, it was the first time that the methods to inventory the grassland resources. The lization of naturalgrassland were obtained by this Qinghai combined the 3S technology and field investigation information and data of types, acreage, distribution, and uti- survey. Based on this survey, the classification indexes for grass/and degradation survey were established. In this paper, according to the standards and regulations for de- graded grass land from the Administration of Agriculture, and based on an careful review of the 2007 survey, the author introduces the key survey methods for degraded grassland investigation.
出处
《青海草业》
2013年第3期46-50,共5页
Qinghai Prataculture
关键词
草地退化
遥感调查
方法
Grassland degradation
Remote Sensing investigation
Methodology
