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[1]ZHANG Xiaodong,LI Zhong,ZHANG Feng.Soil Enzyme Activities and Microbial Characteristics Under Different Land Use Patterns in Aibinur Lake Region of Xinjiang[J].Research of Soil and Water Conservation,2017,24(06):91-96.

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Soil Enzyme Activities and Microbial Characteristics Under Different Land Use Patterns in Aibinur Lake Region of Xinjiang

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 24 Number of periods: 2017 06 Page number: 91-96 Column: Public date: 2017-11-24

Title:: Soil Enzyme Activities and Microbial Characteristics Under Different Land Use Patterns in Aibinur Lake Region of Xinjiang

Author(s):: ZHANG Xiaodong¹, LI Zhong¹, ZHANG Feng²; 1. Bayingol Vocational and Technology College, Korla, Xinjiang 841000, China;
2. Korla Research Center of Fragrant Pear Korla, Xinjinag 841000, China

Keywords:: Aibinur Lake; land use patterns; soil nutrients; soil microbial

CLC:: S153.2

DOI:: -

Abstract:: The Aibinur Lake region had great position for its ecology and geography. As the essential indicators of soil quality, soil enzyme activities and soil microbial biomass play an important role in many soil chemical, physical and biological properties. A field experiment was conducted to determine the variation of soil enzyme activities and soil microbial biomass under different land use patterns in Aibinur Lake region of Xinjiang. The results are as follows. (1) Coarse silt is dominant in soil, in addition to the coarse sand grains, the land uses have significant effects on the contents of the rest fractions, the hierarchy is not obvious. The soil mechanical composition under different land use patterns was different, and the change trend of soil total porosity was contrary with the soil bulk density. The soil organic carbon, total nitrogen, total phosphorus and soil available nutrients (available phosphorus, available potassium, available potassium zinc, available iron) had the same change trends, which decreased in the order:forestland > grassland > cultivated land > unused land, while the soil total phosphorus had no significant difference under different land use patterns (p>0.05). Compared with cultivated land, there was the significant increase in soil microbial biomass (carbon and nitrogen), soil microbial quantity (bacteria, fungi and actinomycetes) and soil enzyme activities (invertase, dehydrogenase, urease and phosphatase), which decreased in the order:forest land > grassland > cultivated land > unused land. Correlation analysis showed that there was the extremely significant difference between soil microbial biomass and soil microbial quantity, soil enzyme activity (p<0.05, p<0.01), soil organic matter and total nitrogen had the extremely significant difference with soil enzyme activity (p<0.01), while soil bulk density had the extremely negatively significant difference with soil microbial biomass and soil microbial quantity, soil enzyme activity, which indicated that soil microbial biomass is the main source of available nutrients, and soil pH value had the negative contribution to soil microorganism quantity and enzyme activity, while soil nutrient had the positive contribution, which was the mainly reason for the differences in soil microorganism quantity and enzyme activity. Soil organic matter and total nitrogen were the main sources of nutrients.

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