...疆地区2007和2008年植被生长季(5月下旬-9月中旬)32景MOD13Q1数据进行累积求和、植被盖度转换和荒漠化指数(desertification index,DI)计算及分级.分级结果客观的反映了北疆地区荒漠化土地的空间分布.
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Factor of soil circumstance was an index of rocky desertification type and indicated the spatial difference of lithology.
土壤环境因子表征了石漠化在空间上岩性的差异特征，是石漠化类型的表现指标。
The root cause of the cumulative impacts of cropland index and carrying capacity on desertification is the increasing pressure on environment and resource due to increasing population.
人口持续增长导致的对资源环境压力的增大是耕地指数和草场载畜量对沙漠化影响产生累加效应的根本原因。
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