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[1]JING Ruiyong,CAO Kun,LIU Junjie,et al.Correlation Between Soil Enzyme Activity and Physicochemical Characteristics in Agricultural Black Soils in Northeast China[J].Research of Soil and Water Conservation,2015,22(04):132-137,142.

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Correlation Between Soil Enzyme Activity and Physicochemical Characteristics in Agricultural Black Soils in Northeast China

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 22 Number of periods: 2015 04 Page number: 132-137,142 Column: Public date: 2015-08-28

Title:: Correlation Between Soil Enzyme Activity and Physicochemical Characteristics in Agricultural Black Soils in Northeast China

Author(s):: JING Ruiyong^1,2, CAO Kun^1,2, LIU Junjie¹, YU Zhenhua¹, LIU Judong¹, SUI Yueyu¹, JIN Jian¹, LIU Xiaobing¹, WANG Guanghua¹; 1. Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese academy of Sciences, Harbin 150081, China;
2. Heilongjiang Bayi Agricultural University, Daqing, Heilongjiag 163319, China

Keywords:: black soil; soil enzyme activity; soil physicochemical characteristics; path analysis

CLC:: S154.2

DOI:: -

Abstract:: Black soil is one of most important resources in ensuring food security in China and spreads mainly in northeast China. To investigate the soil enzyme activity, physicochemical characteristic and their correlations, 26 soil samples were collected from black soil zone with different latitudes, the distribution trait of soil enzyme activity, correlation with soil microbial biomass carbon (MBC) and other physicochemical characteristics were analyzed. The results showed that the levels of soil total carbon, soil total nitrogen, total phosphate, available nitrogen, MBC, catalase, urease and invertase activity in site of Bei-An were maximum. Simple correlation analysis showed that there was a significantly positive correlation between four soil enzyme activities and soil total nitrogen, total carbon and MBC. The results of path analysis showed that soil total nitrogen was the dominant factor affecting soil enzyme activity of the tested soils, pH value was the other dominant factor affecting catalase activity in the direct or indirect ways, soil total nitrogen was dominant factor affecting urease activity, available nitrogen, soil carbon and total nitrogen were the dominant factors affecting soil phosphatase activity, soil total nitrogen and pH value were the key dominant factors affecting invertase activity in the tested zone.

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