治沙生态工程中植物固沙效益的综合评判

Comprehensive Judgment of Sandfixing Benefits of Plants in the Ecological engineering of Sand Management

本文采用多级模糊综合评判方法，依据在沙坡头水分平衡场试验林区所作的多项试验观测结果，对不同营林密度与配置方式下的结果，从土壤水分有效利用、植物生长状况与治沙效果等方面进行了综合评判。主要结果表明，油蒿与柠条的合理营林密度分别为６６００株／公顷和５０００株／公顷左右。

Based on the field results of Shapotou Station water balance experiment and adopting fuzzy and comprehensive judgment method, this paper has studied the effect of different plating densities and arrangements, efficient utilization of soil water, growing conditions of plants and the effect of sand governing. The main results obtained show that the reasonable planting densities of Artemicia ordosica and Caragana korshinskii are 6600/ha and 5000/ha respectively, the best arrangement is an even mixture of two species (5000/ha). The results provide scientific basis for the construction of protection forests.