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[1]LU Mei,TIAN Kun,MO Jian-feng.Study on the Soil Nutrients and Microbiological Characteristics of Four Utilization Types of Plateau Wetlands Napahai[J].Research of Soil and Water Conservation,2011,18(02):241-245.

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Study on the Soil Nutrients and Microbiological Characteristics of Four Utilization Types of Plateau Wetlands Napahai

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 18 Number of periods: 2011 02 Page number: 241-245 Column: Public date: 2011-04-20

Title:: Study on the Soil Nutrients and Microbiological Characteristics of Four Utilization Types of Plateau Wetlands Napahai

Author(s):: LU Mei¹, TIAN Kun^1,2, MO Jian-feng³; 1. Department of Environmental Science and Engineering, Southwest Forestry University, Kunming 650224, China;
2. National Plateau Wetlands Research Center, Kunming 650224, China;
3. Guangxi Forestry Inventory and Planning Institute, Nanning 530011, China

Keywords:: plateau wetland; napahai; utilization type; soil nutrient; soil microbiological characteristic

CLC:: S153.6;S154.3

DOI:: -

Abstract:: Through field investigation and In-situ technique of locating experiment and experiment analysis, the soil nutrients and microbiological properties of four utilization types of Napahai plateau wetlands in northwestern Yunan were studied. The results showed: (1) The wetland types with the disturbances of human beings, has gradually retrogressive succession from a primary swamp into the swampy meadow, meadow and reclaimed wetland, the soil organic matter and total nitrogen were obviously declining. The soil organic matter has descended by 54.96 g/kg and the total nitrogen has descended 1.96 g/kg. (2)With the decrease of soil nutrients, the total amount soil microbes are different. The quantities of soil microbes of four types are swamp meadow>meadow>reclaimed wetland>swamp. The number of soil fungi and actinomycetes in different wetland types are swamp meadow>reclaimed wetland>meadow>swamp. Meanwhile, both the soil nutrients and the number of microbes were decreasing with the increase of soil depth; (3)There is close correlation between soil microorganism and soil organic matter and total nitrogen in three utilizations wetland types except swamp; (4) The human disturbance accelerated the process of reverse succession, the change in soil nutrient and microbial characteristics is the response to a type and intensity of different disturbances.

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