【摘要】 该文依据多种集水技术条件下的降雨径流观测资料和林地不同空间位置上定期土壤水分观测资料，分析了在半干旱黄土地区集水造林技术与土壤水环境的关系，林木对水分的利用状况及林地水量平衡。结果表明：集水技术不仅改善了土壤水环境，而且提高了林木对降水的利用率。更多还原

【Abstract】 According t data of overland flow from runoff plots which represent various rainfall collecting and data of s0il moisture from determined positions periodicaIly,the relationship between soil moisture envoirnment and water-harvesting afforestation techniques and rainfall utilization of trees, water balance on afforested lands are analysed in semi-arid loess region- The results show that water-harvesting for afforestation greatly increase rainfall use efficiency of trees and also improve the c0ndition of soil moisture.更多还原