| To Yangtze and Yellow Rivers, reaching on two plots of different successional stages of vegetation in alpine grassland soil under the object of study, conducted at different stages of vegetation succession of the number of soil microorganism and microbial biomass carbon as the study of degraded ecosystems restoration and management and to enhance productivity in different vegetation provide a scientific basis. Using application of separation techniques for determination of soil microbial bacteria, actinomycetes and fungi.Using chloroform fumigation extraction method for determination of microbial biomass carbon, soil routine analysis of soil nutrients. Combining correlation analysis and variance analysis and other methods on the relationships between them were discussed, the following results:1. In Maqin and Dari,quantitative distribution of total soil microorganism trends, bacteria>actinomycetes>fungi. The total number of microbial of different natural degradation grassland decreased from native grassland to seriously degraded grassland, while the total number of soil microorganism of seriously degraded grassland than highly degraded grassland. The different planting years in Maqin,the total number of soil microorganism decreased from artificial grassland 5a to artificial grassland 10a, Dari with just the opposite. In Maqin, the total number of microorganisms of enclosure of seriously degraded grassland was higher than seriously degraded grassland. In Dari and Maqin, quantity of soil microorganism decreased with soil depth are increasing.2. In Maqin and Dari, with different degradation of natural grassland soil microbial biomass carbon as the deepening degradation decreased. The different planting years grassland in Maqin, biomass carbon content showed inverted v shaped distribution, and biomass carbon of mixed planting grassland 6a is largest. Biomass carbon of enclosure of seriously degraded grassland was significantly higher than the other grassland. Biomass carbon of reseeding grassland than other grassland in Dari, in different years of planting artificial grassland, biomass carbon increased with increasing age. In Dari and Maqin, biomass carbon decreased with soil depth are increasing. 3. In Maqin, the PH value of the soil is alkaline, in the different degradation of natural grassland, content of available nitrogen over low-high-low changes with increased the degree of degradation, phosphorus, total phosphorus, organic matter, potassium, moisture content decreased with increasing the degradation of grassland. Highest total nitrogen to light degradation, was inverted v shaped distribution. Artificial grassland planting different years, available nitrogen, total phosphorus, available potassium decreased with the increasing number of years planting. total nitrogen, available phosphorus content showed inverted v shaped distribution, organic matter increased with the planting of years.In Dari, the PH value of the soil is alkaline,Palm grassland, available nitrogen over low-high-low changes, available phosphorus, total phosphorus, total nitrogen, potassium, organic matter over high-low-high changes. Wo Cypriot, total phosphorus, total nitrogen, organic matter, available potassium increased with increasing years of planting. available nitrogen of native grassland is the highest, potassium and moisture content of native grassland is the higher than other grassland.4. In Dari, soil microbial biomass carbon and bacteria, actinomycetes, total number of microorganisms was positively correlated, correlation is not significant, and fungi were negative, the correlation was not significant. In Maqin,soil microbial biomass carbon and bacteria, actinomycetes, fungi, total number of microorganisms was positively correlated, which degraded grassland biomass carbon and the total number of microorganisms and bacteria related significantly.5. In Dari, bacteria, fungi, total number of microorganisms and soil pH value was significantly negative correlation with soil water content, available phosphorus, total phosphorus, available nitrogen, total nitrogen, potassium, organic matter was positively correlated. Actinomycetes and soil pH, available potassium was not significantly negatively correlated with soil total nitrogen, total phosphorus, available nitrogen, phosphorus, organic matter, moisture content was positively correlated.Maqin natural grassland of bacteria, actinomycetes, total number of microorganisms and soil pH, organic matter, potassium, water content, available phosphorus, total nitrogen, total phosphorus was positively correlated with soil available nitrogen was not significantly negative. Fungi and soil pH, potassium, total nitrogen, available phosphorus, total phosphorus, organic matter was positively correlated with soil available nitrogen, water content was not significant negative correlation.Maqin artificial grassland of bacteria, actinomycetes, total number of microorganisms and soil organic matter, water content was negatively correlated with soil pH, total nitrogen, available potassium, available nitrogen, available phosphorus and total phosphorus were positively correlated. Fungi and soil pH, available nitrogen, total phosphorus, available phosphorus, available potassium was negatively correlated with soil total nitrogen, organic matter and water content were positively correlated.6. In Dari, soil microbial biomass carbon and pH values, potassium was not significantly negatively correlated with soil available nitrogen, total phosphorus, total nitrogen, available phosphorus, organic matter, moisture content was positively correlated. Maqin natural grassland of soil microbial biomass carbon and soil pH, water content, total nitrogen, available phosphorus, total phosphorus, potassium, organic matter was positively correlated with available nitrogen was not significant negative correlation. Maqin artificial grassland of soil microbial biomass carbon and soil pH, water content, total nitrogen, available phosphorus, available nitrogen, total phosphorus, potassium, organic matter was positively correlated.
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