水土保持研究2011，Vol.18Issue(2)：241-245,5.
高原湿地纳帕海4种湿地利用类型土壤养分和微生物特征研究
Study on the Soil Nutrients and Microbiological Characteristics of Four Utilization Types of Plateau Wetlands Napahai
摘要
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 cotrelation 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.关键词
高原湿地/纳帕海/利用类型/土壤养分/土壤微生物特征Key words
plateau wetland/ napahai/ utilization type/ soil nutrient/ soil microbiological characteristic分类
农业科技引用本文复制引用
陆梅,田昆,莫剑..高原湿地纳帕海4种湿地利用类型土壤养分和微生物特征研究[J].水土保持研究,2011,18(2):241-245,5.基金项目
国家自然科学基金(40971285) （40971285）
国家科技部973计划前期研究专项(2008CB417210) （2008CB417210）
