[Objective] The paper was to study the effects of desert vegetation on temperature regulation and stabilization in desert area. [Method] The survey data of quadrats in five kinds of plant communities in Minqin desert area were preliminarily estimated. [Result] Desert vegetation had the ecological functions of regulating desert temperature and stabilizing sharp increase of temperature,especially the irreplaceable ecological function of slowing down sandstorm each spring in northwest China compared to physical sand-fixation measures. The air humidity in forest region was relatively large,and the climate was more stable. The climate in desert area was dry,with intense changes in air temperature. Although the solar radiation utilization rate of desert vegetation per unit area in Minqin oasis fringe was 5. 8% of that of 100% coverage vegetation,it had non-ignorable significance in regulating temperature of local desert. Regulating temperature was one of the ecological functions of desert vegetation. Previous studies only considered wind proof and sand-fixation functions of desert vegetation,but ignored its temperature regulation effect,and this was the ecological function of vegetation sand control different from physical sand-fixation measures such as sand barrier. [Conclusion]It has important theoretical guiding significance and practical use value for prevention and control of desertification by studying ecological function of desert plants/vegetation.
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