干旱(水分亏缺)和高温是我国北方沙漠化地区植物生长季的两个主要环境胁迫因子。
Drought (water deficit) and high temperature are two major constraint factors in the growing season in the desert area of Northern China.
鄂尔多斯地区位于我国北方环境脆弱带，区内土地沙漠化严重。
The ordos region is located in the fragile zone of environment in North China. The desertification was severe there.
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