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[1]ZHU Le-tian,JIAO Feng,LIU Yuan-xin,et al.Spatio-temporal Varation Characteristics of Soil Moisture under Different Land Uses in the Loess Hilly Region[J].Research of Soil and Water Conservation,2011,18(06):115-118.

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Spatio-temporal Varation Characteristics of Soil Moisture under Different Land Uses in the Loess Hilly Region

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 18 Number of periods: 2011 06 Page number: 115-118 Column: Public date: 2011-12-20

Title:: Spatio-temporal Varation Characteristics of Soil Moisture under Different Land Uses in the Loess Hilly Region

Author(s):: ZHU Le-tian¹, JIAO Feng^2,3, LIU Yuan-xin¹, HE Guo-xin⁴; 1. College of Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China;
2. Institute of Soil and Water Conservation, CAS, Yangling, Shaanxi 712100, China;
3. Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, Chinaj;
4. Beijing Tianzhu Nursery, Beijing, 100621, China

Keywords:: soil moisture; land use; Yanhe River Basin

CLC:: S152.7;F301.24

DOI:: -

Abstract:: Effects of land use types on dynamic of soil moisture in three different periods(before the rainy season, at the rainy season, after the rainy season) in Yanhe basin were analyzed in this paper. The results show that the land use types have the significant influences on soil moisture on the horizontal and vertical scales, soil moisture of farm land is the highest and land use as farm land obviously influences soil moisture, which is followed by the natural grassland, bare land, woodland, orchard land and young forest land, and the soil moisture is the lowest in shrub land. In profile, the soil moisture increases along the depth of soil layer before the rainy season(drought period), the soil moisture decreases or fluctuates in the middle period of rainy season(humid period). The soil moisture declines firstly and then it increase in the late rainy season. It can be seen that the spatio-temporal pattern of soil moisture is closely related to rainfall distribution, plant transpiration and land use. In Yanhe River basin, land use types significantly influence soil moisture in different seasons. It is essential for management of this river basin and optimal basin administration that the effects of different land use types on soil moisture are paid attention and the land use structure is optimized.

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