表明荒漠生态系统植被稀疏，生物量小，对气候因子，特别是降水变化敏感，对其保育显得尤为重要。
Desert ecosystem takes on sparse vegetation and small biomass, changes with climate factors especially sensitive in precipitation, and it is particularly important for its conservation.
最后，该文对水热平衡理论和研究方法、水热平衡耦合模型以及荒漠生态系统的水热结构优化模式等未来的研究方向和重点问题作了分析。
At last, the authors analyze the future research directions and research highlights, such as the theory and research methods, coupling model, and optimized water-heat structure of desert ecosystem.
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.
地区的生态系统，例如草原、荒漠和落叶林又被称为生物带。
Regional ecosystem types, such as grass land, desert, and deciduous forest, are called biomes.
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.
由于人类对水资源的不合理利用，造成荒漠河岸生态系统的退化甚至崩溃，保护受危胡杨种群已成为当务之急。
The riparian ecosystems are facing the dangers of degrading or even collapsing due to the unreasoned water utilization by human being.
内蒙古荒漠草原是温带草原中最干旱的一个类型，为草原区自然条件最严酷、草场生产力最低、生态系统最脆弱的一个地区。
As a most drought type in temperate steppe, the desert steppe in Inner Mongolia is a district with harshest natural condition, lowest productivity and weakest ecosystem in steppe districts.
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.
在绿洲荒漠过渡区生态系统的热量平衡中，占比例最大的是潜热通量，其次为感热通量和土壤热通量。
The biggest proportion in the heat balance is the potential heat flux, followed by sensible heat flux and soil heat flux.
该地区集中分布着一批古老残遗物种，这些物种大多为群落的建群种或优势种，对维持草原化荒漠区脆弱的生态系统具有重要作用。
Many ancient relic species centrally distributed in the area, most of them were the constructive or dominant species of desert community, their existence played an import.
该地区集中分布着一批古老残遗物种，这些物种大多为群落的建群种或优势种，对维持草原化荒漠区脆弱的生态系统具有重要作用。
Many ancient relic species centrally distributed in the area, most of them were the constructive or dominant species of desert community, their existence played an import.
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