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.
根据北方农牧交错带（定西县1970～2000年）的气候资料，分析了该地区30年来气候变化周期、趋势及其草地气候生产力的变化。
According to climate data(1970~2000) in the northern farming and pastoral area, the climate change cycle, trend and grassland climate productivity about 30 years were analyzed.
晋西北地处我国北方生态环境脆弱的农牧交错带，同时又是资源富集，资源与环境的矛盾十分突出。
Northwestern Shanxi is located in the north China farming-grazing transitional zone with fragile ecological characters, its environmental degradation resulted from human activities is very serious.
土地利用方式的变化是影响全球变化的因素之一，位于中国北方的农牧交错带是土地利用方式变化最为明显的地区。
The way that land is used is one of the major factors affecting global changes. And the land use changes are the most prominent in the farming-grazing transitional belt in North China.
由于研究区是我国北方典型的农牧交错带，其生态系统脆弱且有着显著的敏感性。
The study area is typical of northern China ecotone and this study area ecosystem is vulnerability and sensitivity of the significant.
由于研究区是我国北方典型的农牧交错带，其生态系统脆弱且有着显著的敏感性。
The study area is typical of northern China ecotone and this study area ecosystem is vulnerability and sensitivity of the significant.
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