Abstract
黄土高原地区气候干旱，降雨量少，其土壤水分具有明显的时空变异特征，在干旱季节及作物生长旺季土壤易出现干层，影响植物生长及当地土壤的可持续发展。本文就黄土高原土壤水分生态条件、时空变异性及土壤干层的研究进展进行综述，并提出了改善该地区土壤水分状况的调控措施，指明有待深入探讨的问题及今后研究发展的方向。 There is arid climate and low rainfall in Loess Plateau, where the soil moisture has obvious space-time variable characteristics, and is prone to dry layer in the dry season and the crop growing season, which affect plant growth and sustainable development of the local soil. This paper looked to solve the problem of local soil moisture imbalance, summarized the research progress of ecological conditions, space-time variability of soil moisture and soil dry layer, and proposed some control measures to improve soil moisture conditions in this area, and indicated the problem which needed to be further resolved and future research development direction.
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