黄土坡面不同土地利用类型土壤抗蚀性对比

林业科学 ›› 2013, Vol. 49 ›› Issue (9): 102-106.

黄土坡面不同土地利用类型土壤抗蚀性对比

刘旦旦¹, 张鹏辉¹, 王健¹, 肖庆利²

1. 西北农林科技大学资源环境学院杨凌 712100;
2. 渭南市水利工程质量监督站渭南 714000

收稿日期:2012-08-13 修回日期:2013-05-13 出版日期:2013-09-25 发布日期:2013-09-19
通讯作者: 王健
基金资助:
国家自然科学基金(40871133);陕西省日元贷款项目(K332020023);西北农林科技大学基本科研业务费科研创新专项(QN2011152)。

A Comparison on Soil Anti-Erodibility over Different Land Use Types on Loess Slope

Liu Dandan¹, Zhang Penghui¹, Wang Jian¹, Xiao Qingli²

1. College of Resource and Environment, Northwest A&F University Yangling 712100;
2. Quality Supervision Station of Hydraulic Engineering in Weinan Weinan 714000

Received:2012-08-13 Revised:2013-05-13 Online:2013-09-25 Published:2013-09-19

摘要/Abstract

摘要：

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:0~10cm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10~20cm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。

关键词: 黄土坡面, 不同土地利用类型, 土壤抗蚀性

Abstract:

The soil anti-erodibility is important index to evaluate the property of resistance to destructive erosion and soil quality. We compared the difference in soil anti-erodibility on different land use types through the static water disintegration. We also tested and analyzed the correlation between anti-erodibility and soil physical and chemical properties. The results showed that the disintegrated quantity of Platycladus orientalis(Oriental Arborvitae) forest land was smallest. The crop land had far greater disintegrated quantity than the forest land and waste-grassland in the 0-10 cm. The 10-20 cm layers soil in Populus nigra (Black Poplar) forest was disintegrated least, followed by Pinus tabuliformis(Chinese Pine), Platycladus orientalis and Robinia pseudoacacia(Black Locust). There was no significant difference in disintegration quantity between waste-grassland and the crop land in deep soil layers. Above results indicated the soil physical and chemical properties were related to the vegetation cover. The soil disintegrating rate increased gradually with the time, with the initial rate maximum. There was a significant correlation between soil aggregate content and soil anti-erodibility. Forests were able to improve the soil anti-erodibility by effectively improve the soil physical and chemical properties.

Key words: loess slope, different land use types, soil anti-erodibility

中图分类号:

S157.1

刘旦旦, 张鹏辉, 王健, 肖庆利. 黄土坡面不同土地利用类型土壤抗蚀性对比[J]. 林业科学, 2013, 49(9): 102-106.

Liu Dandan, Zhang Penghui, Wang Jian, Xiao Qingli. A Comparison on Soil Anti-Erodibility over Different Land Use Types on Loess Slope[J]. Scientia Silvae Sinicae, 2013, 49(9): 102-106.

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