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本文根据作者的观察和测量 ,对西安市白鹿塬塬区的土壤侵蚀状况进行了研究。研究表明 ,白鹿塬塬区确定土壤侵蚀的主要依据是土层厚度的变化 ,并非侵蚀面。塬区侵蚀是塬边侵蚀较强 ,向塬里侵蚀逐渐减弱。塬面上高地侵蚀弱 ,低地侵蚀强 ,暂时性线状流水长期汇集而成的冲沟对黄土塬区土壤的侵蚀更加强烈。气候对土壤侵蚀也有影响 ,冷干和温湿气候均会产生土壤侵蚀 ,冷干期侵蚀量比温湿期大 ,前者侵蚀厚度比后者大 7倍多
Based on the author’s observations and measurements, this paper studied the soil erosion status of Bailuyuan in Xi’an. Studies have shown that the main basis for determining soil erosion in Bailu highland is the change of soil thickness, not the erosion surface. Erosion in the highland area is more intense erosion on the upper plateau, erosion to the upper plateau gradually weakened. Plateau highland erosion is weak, low erosion, temporary linear flow of long-term accumulation of gully on the loess plateau area soil erosion more intense. Climate also has influence on soil erosion, soil erosion occurs in both cold and dry climate and warm and humid climate, and erosion in cold and dry period is larger than that in warm and humid period. The erosion thickness of the former is more than 7 times larger than the latter