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[1]WANG Hong-yan,LIU Pu-xing,CAO Li-guo,et al.Study on Spatail Variation of Soil Moisture in Natural Populus euphratica Forest Stand in Jinta County, Gansu Province[J].Research of Soil and Water Conservation,2012,19(01):51-55.

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Study on Spatail Variation of Soil Moisture in Natural Populus euphratica Forest Stand in Jinta County, Gansu Province

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 19 Number of periods: 2012 01 Page number: 51-55 Column: Public date: 2012-02-20

Title:: Study on Spatail Variation of Soil Moisture in Natural Populus euphratica Forest Stand in Jinta County, Gansu Province

Author(s):: WANG Hong-yan, LIU Pu-xing, CAO Li-guo, ZHUO Malancao; College of Geography and Environment Science, Northwest Normal University, Lanzhou 730070, China

Keywords:: Jinta County of Gansu Province; natural Populous euphratica forest stand; soil water content; spatial variability

CLC:: S715.5

DOI:: -

Abstract:: The soil water was one of the factors restricting the growth of plants. The paper analyzed the spatial variation of soil water of natural Populus euphratica forest stand in Jinta County, Gansu Province by using the methods of coefficient of variation(C_v) and ArcGIS (Inverse Distance Weighted, IDW) interpolation. Soil water in SCCD decreased with the soil depth increasing. The soil water in the other 6 sample areas in the 0—60 cm layer decreased. In the 60—120 cm soil layer, the soil water in HSCD and GBLC layer kept on decreasing, while in DZZC, WXCD, NTWC, XHCD, the soil water started to increase. The average soil water in SCCD was the largest. The coefficient of variation of the soil water was obviously different in each layer and became larger with the increase of depth. The Populus euphratica grew better as the soil water increased. The soil water of horizontal direction in profile presented the similar characteristics of increase from west to east. This change was related with the topographical features of Beida river and Heihe river basin. The soil water along the horizontal direction in profile decreased with the distance away from water source.

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