干旱半干旱地区城市园林绿化中的树种选择_731苗木网 关键词：干旱半干旱地区；城市园林绿化；树种选择 [gap=1241]Key words: arid and semi-arid region; Urban landscape; Tree species selection
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在干旱半干旱地区，封闭湖泊的湖水盐度对气候变化反应敏感。
The salinity of lake water is a sensitive monitor of climate in arid and semiarid region.
风蚀是全球性的自然灾害之一，此现象广泛分布于干旱半干旱地区。
Wind erosion is one of nature disaster around globe. This phenomenon is widely distributed in arid and semiarid area.
田间试验研究了西北干旱半干旱地区地膜覆盖对土壤中n 2o排放通量变化的影响。
Field experiments was used to study the change of soil N2O discharge flux in the northwestern arid and semi-arid areas.
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