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[1]YANG Min-yi,DU A-peng,WANG Yan-hui.Dynamics of Soil Water Under Larix principis-rupprecht Ⅱ Plantation in the Liupan Mountains[J].Research of Soil and Water Conservation,2009,16(06):129-133.

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Dynamics of Soil Water Under Larix principis-rupprecht Ⅱ Plantation in the Liupan Mountains

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 16 Number of periods: 2009 06 Page number: 129-133 Column: Public date: 2009-12-20

Title:: Dynamics of Soil Water Under Larix principis-rupprecht Ⅱ Plantation in the Liupan Mountains

Author(s):: YANG Min-yi¹, DU A-peng², WANG Yan-hui³; 1. The Forestry Administration of Yuanzhou District, Guyuan, Ningxia 756000, China;
2. China Eucalypt Research and Development Centre of State Forestry Administration, Zhanjiang, Guangdong 524000, China;
3. Research Institute of Forestry Ecology, Environment and Protection, CAF, Beijing 100091, China

Keywords:: the Liupan Mountains; Larix principis-rupprecht Ⅱ; soil water; soil water storage

CLC:: S152.7;S724

DOI:: -

Abstract:: By using Equi tensiometer and time domain reflectmetry (TDR), a fixed-position monitoring was made on the dynamic characteristics of soil water under Larix principis-rupprecht Ⅱ plantation in the Liupan Mountains. The results showed that the dynamics of soil water could be described as relatively wetness period, durative consuming period and fast accumulating period. According to soil water utilizing character, the vertical soil water dynamics with soil depth can be divided into 3 layers: faintness-utilizing layer (0-20 cm), mostly-utilizing layer (20-60 cm) and adjusting layer (below 60 cm).Significant correlations existed between soil water storage and meteorological factors as the solar radiation, air temperature, vapor pressure deficit (VPD) and the sap flow flux (P<0.01). Carries on the multi-dimensional gradually regression analysis to various factors, the multi-dimensional equation of motion between the 0-60 cm various soil layers soil water-holding capacity with the meteorological factor was obtained.

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