沙质荒漠化灾害是我国北方农牧交错区最为严重的灾害之一。
Sandy desertification hazard is one of the most devastating hazards in the agro-pastoral region in Northern 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.
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