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本文以吉林省西部大安市为例，研究近20年来我国北方农牧交错带县域农业景观格局的变化情况。
Taken Da 'an city in the west of Jilin Province as a case, this article studies the landscape pattern of a county in the edge of arg-herd in the past 20 years.
不合理的开垦是我国北方土地沙质荒漠化的主要原因，北方农牧交错带45％的退化土地属这一类型。
Unreasonable cultivation is the major cause of desertification in north China and 45% of degenerated land in China.
本文以位于北方农牧交错带的康保县为例，对县域尺度空间范围土地利用格局与土壤侵蚀关系进行了分析。
In this paper, taking Kangbao county as an example, located in the northern farming-pastoral zone, the scope of county-scale spatial pattern of land use and soil erosion relationship are analyzed.
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