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采用静水崩解法研究黄土坡面同一土类背景下不同土地利用类型(侧柏林、刺槐林、油松林、黑杨林、荒草地、农耕地)土壤抗蚀性的差异及产生原因,并分析土壤抗蚀性与土壤理化性质的相关性。结果表明:0~10 cm土层,侧柏林地崩解量最少,农耕地崩解量远远大于林地与荒草地,而10~20 cm土层,黑杨林地崩解量最小,其次为油松、侧柏、刺槐林地,荒草地与农耕地崩解量差别不大,这与植被对土壤理化性质的影响有关;不同土地利用类型土壤的崩解速率均随着时间增加而逐渐减小,初始速率最大;土壤团聚体含量与土壤抗蚀性极显著相关,林地土壤由于其理化性质得到改善因而增强了抗蚀性。
Using the method of hydrostatic disintegration, the differences and causes of soil anti-erodibility between different land use types (ie, Platycladus orientalis, Robinia pseudoacacia, Pinus tabulaeformis, Pinus tabulaeformis, Scrubland and farmland) on the same soil type of loess slope were studied. Correlation between corrosion resistance and soil physical and chemical properties. The results showed that in 0 ~ 10 cm soil layer and Platycladus orientalis, the amount of disintegration was the least, and the amount of disintegration in agricultural land was much larger than that in woodland and grassland, but the disintegration was the least in 10 ~ 20 cm soil layer and black poplar forest, followed by oil The difference of the disintegration amount of pine, Platycladus orientalis, Robinia pseudoacacia forestland, wild grassland and agricultural land was not significant, which was related to the influence of vegetation on soil physical and chemical properties. The disintegration rate of soil with different land use types decreased with the increase of time, The initial rate was the highest. Soil aggregates content was significantly correlated with soil anti-erodibility. Forest soil enhanced its anti-erodibility because of its physical and chemical properties.