Variation of soil moisture under different rainwater harvesting and conservation practices in the western part of Loess Plateau

被引：0

作者：

Li, Xiaoying ^{[1
]}

Duan, Zhenghu ^{[1
]}

Liu, Lichen ^{[2
]}

Tan, Mingliang ^{[1
]}

Chen, Xiaohong ^{[1
]}

机构：

[1] Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences

[2] College of Resource and Environmental Sciences, Lanzhou University

来源：

Nongye Jixie Xuebao/Transactions of the Chinese Society for Agricultural Machinery | 2014年 / 45卷 / 03期

关键词：

Loess Plateau; Rainwater harvesting and soil water conservation; Soil moisture; Soil water deficit;

D O I：

10.6041/j.issn.1000-1298.2014.03.020

中图分类号：

学科分类号：

摘要：

The ecological restoration area in the west part hill area of the Loess Plateau was chosen for the object in this work. Neutron probe was used to test the moisture change in Pinus tabulaeformis forest soil under different rainwater harvesting and water conservation measures. The dynamic characteristics of soil moisture under different rainwater harvesting and water conservation measures, the deficit and compensation of soil moisture before and after rainy season were analyzed. Results show that soil moisture storage capacity under different rainwater harvesting and water conservation measures is significant different. The soil moisture under slope water-harvesting measure is greater than those with other measures. The soil water storage deficit is alleviated under seven measures in July. Soil water storage deficit from 0~100 cm is alleviated under slope water-harvesting and slope water-harvesting with water harvesting groove reversed. Results of this study indicate that slope water-harvesting has a significant effect on the effective use of precipitation. Film mulches mulch has a negative impact on the recovery of the surface soil moisture, but has an obvious effect on water conservation of deep soil moisture. Wallow-tail type runoff collecting pit is ineffective in increasing the efficiency of precipitation use and compensation of soil water storage deficit.

引用

页码：118 / 123

页数：5

共 15 条

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