文章摘要信息 关 键 词:荒漠景观生态系统;景观结构;生产特性中图分类号:S 69/Q 149 [gap=1577]Key words:Desert landscape ecosystem, Landscape Pattern, Producting characteristic
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绿洲外缘地区，是绿洲与荒漠相互转化活动程度最剧烈、表现最突出的地区，而植被是生态系统的重要组成部分和景观状况的重要指针。
The outer space of oasis play a great role in transferring between oasis and desert, of all, vegetation is a important part in ecological system and index displaying the certain landscape.
生物土壤结皮广泛分布在干旱半干旱地区与寒区荒漠，是荒漠生态系统的主要组成和景观特征之一，其重要性已被大量的研究报道所证实。
Soil microbiotic crusts are widespread in arid and semiarid regions, they are one of the major components of desert ecosystems, and their importance has been demonstrated by numerous researches.
绿洲外缘地区是绿洲与荒漠相互转化活动程度最剧烈、表现最突出的地区，而植被是生态系统的重要组成部分和景观状况的重要指标。
The outer space of oasis plays an important role in transferring between oasis and desert. Vegetation is an important part in ecological system and indicating certain landscapes.
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