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[1]ZHOU Yuhong,DONG Jianguo,WANG Youke,et al.Research on Soil Water Recovery Ability Under Different Typical Mulches[J].Research of Soil and Water Conservation,2015,22(02):334-339.

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Research on Soil Water Recovery Ability Under Different Typical Mulches

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 22 Number of periods: 2015 02 Page number: 334-339 Column: Public date: 2015-04-28

Title:: Research on Soil Water Recovery Ability Under Different Typical Mulches

Author(s):: ZHOU Yuhong¹, DONG Jianguo², WANG Youke^1,2, BAI Shengyuan¹, JIN Shanshan²; 1. College of Water Resources and Architectural Engineering, Northwest A & F University, Yangling, Shaanxi 712100, China;
2. Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China

Keywords:: hilly loess region; soil water content; typical mulch; variable coefficient

CLC:: S152.7;S274.1

DOI:: -

Abstract:: This study aimed to analyze soil water recovery ability under different typical mulches in the hilly loess region and adopted the large soil columns to observe soil water contents in the field. Results showed that soil water content significantly increased under plastic film mulch compared with barren land. Weeding was beneficial to soil water recovery in the local area. Accumulative storage of soil water increased during growth period, which decreased in the order of film mulching > branches mulching > barren land > bluegrass planting at the end of September. Increment accumulative storage of soil water under four no-plant treatments has linear relations with the month change and plastic film mulch has the close relationship with monthly accumulative rainfall, but accumulative storage of soil water under bluegrass planting has the non-linear relationship with rainfall. With the increase of soil layers, variable coefficient became less gradually, and the variable coefficients became steady below the depth of 200 cm in bluegrass and barren lands; the stable depths under branch mulch and plastic film mulch were 240 cm and 340 cm, respectively.

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