通过对古尔班通古特沙漠南缘不同密度人工梭梭林的林内风速、气温、相对湿度、土壤含水量等指标的观测，就不同密度人工梭梭林改善小气候效应进行了研究，结果表明：人工梭梭林保留密度为1111株ûhm -2与833株ûhm -2时，改善小气候效应与高密度梭梭林相当；保留密度为500株ûhm -2时，改善小气候效应略有降低，但显著提高了土壤含水量，有利于抑制梭梭林的衰败退化；保留密度为278株ûhm -2时，改善小气候效应严重降低，土壤含水量提高不显著。%To study the improvement effect on the microclimate ,the wind speed ,air temperature ,relative humidity and soil water content under different densities of artificial H aloxylon ammodendron forest in the southern margin of Gurbantunggut desert were determined . The study results showed the effect of reserved density of artificial H aloxylon ammodendron forest under 1 111 plant ûhm - 2 and 833 plant ûhm - 2 was equivalent to that under the high density ;the improved effect to the microclimate was decreased slightly under 500 plant ûhm - 2 of reserved density , but soil water content was significantly increased which was conducive to prevent the H aloxylon ammodendron for-est from degradation ;it was severely reduced the improved effect to the microclimate under 278 plant ûhm - 2 of re-served density ,while soil water content was not obviously improved .
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