Deep Soil Water Infiltration and Its Dynamic Characteristics in Chinese Deserts

Feng Wei; Yang Wenbin; Tang Jinnian; Li Wei; Dang Hongzhong; Liang Hairong; Zhang Zhishan

doi:10.7522/j.issn.1000-694X.2014.00123

Journal of Desert Research >

2015 , Vol. 35 >Issue 5: 1362 - 1370

DOI: https://doi.org/10.7522/j.issn.1000-694X.2014.00123

Deep Soil Water Infiltration and Its Dynamic Characteristics in Chinese Deserts

Feng Wei ,
Yang Wenbin ,
Tang Jinnian ,
Li Wei ,
Dang Hongzhong ,
Liang Hairong ,
Zhang Zhishan

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1. Institute of Desertification Studies, Chinese Academy of Forestry, Beijing 100091, China;
2. Gansu Desert Control Research Institute, Lanzhou 730070, China;
3. Inner Mongolia Academy of Forestry Science, Hohhot 010010, China;
4. Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China

Received date: 2014-06-11

Revised date: 2014-07-29

Online published: 2015-09-20

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Abstract

Deep soil water rainfall infiltration is an important part of the water cycle in desert areas. It has important significance for water resources assessment and water balance. The YWB-01 Deep Soil Infiltration Water Recorder was used to measure the quantity of rain infiltration into deep soil, in six locations in China: the Horqin, Hunshandake and Mu Us Sandy Land, Hobq, Ulan Buh and Gurbantonggut deserts over a long period. The results showed that deep soil infiltration had significant differences consistency with temporal and spatial characteristics of rainfall in shifting dunes, which rainfall patterns was the main factors affecting the deep infiltration, rainfall and the deep infiltration amount was significantly (p<0.05) positive correlation in semi-arid areas, but the correlation was not significant (p>0.05) in the arid areas. The shifting dunes deep soil rainfall infiltration (200 cm), 48.5 mm, 146.8 mm and 1.0 mm in the observation period, composing 21.4%, 33.3% and 1.3% of the total precipitation in Baiqi, Yiqi and Fukang, respectively. In Wushen and Dengkou, deep soil rainfall infiltration (150 cm below) reached 1 009.6 and 52.6 mm mm in the total observation period, composing 55.7% and 12.7%, respectively, in shifting dunes. The deep infiltration had no significant differences in the fixed dunes, where the vegetation was the main factors affecting the deep infiltration rather than rainfall. Moreover, the deep infiltration was not more than 2% of the rainfall under the condition for vegetation cover more than 45%. The deep infiltration recharge was mainly from heavy rainfall or high frequency small rainfall, especially, the less rainfall and the low frequency rain in arid areas, its deep soil water recharge more dependent on heavy rainfall.

Key words： shifting dunes; fixed dunes; deep soil water infiltration; rainfall patterns; dynamic characteristic

Cite this article

Feng Wei , Yang Wenbin , Tang Jinnian , Li Wei , Dang Hongzhong , Liang Hairong , Zhang Zhishan . Deep Soil Water Infiltration and Its Dynamic Characteristics in Chinese Deserts[J]. Journal of Desert Research, 2015 , 35(5) : 1362 -1370 . DOI: 10.7522/j.issn.1000-694X.2014.00123

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