新疆农业科学2017，Vol.54Issue(5)：953-960,8.DOI:10.6048/j.issn.1001-4330.2017.05.021
巴音布鲁克高寒草原不同退化阶段土壤养分的变化
Changes of Soil Nutrients in Different Degradation Stages of Alpine Steppe in Bayanbulak
摘要
Abstract
[Objective] This project aims to study the soil physicochemical properties of degraded alpine grassland and soil nutrient characteristics in Bayinbuluk in the hope of providing a theoretical basis for rational utilization of grassland degradation.[Method]Using conventional soil physical and chemical detection method to analyze soil organic matter, total nitrogen, total phosphorus, total potassium, alkali-hydrolyzable nitrogen, available phosphorus, available potassium, pH, soil moisture and bulk density index in Bayanbulak degraded grassland.[Result]With degradation degree aggravated, the contents of soil organic matter, total nitrogen, total phosphorus, available phosphorus and soil water content in the different layers of soil (0-30 cm) declined, but soil bulk density and pH showed a trend of increase.Compared with non degraded areas, the content of soil organic matter, total nitrogen, total phosphorus, alkali-hydrolyzable nitrogen, available phosphorus and soil water decreased between 25.22%-31.96%, 37.69%-48.44%, 28.00%-28.98%, 35.53%-52.47%, 33.89%-44.84% and 35.44%-57.62% in each soil layer (0-30 cm).The available potassium in the soil layer of 20-30 cm increased remarkably after heavy degradation, which was 1.96 times higher than that of the non degraded land.Total K content showed no significant difference (P>0.05).[Conclusion]Soil nutrient contents decreased significantly in different alpine grasslands in Bayanbulak.关键词
退化演替/高寒草原/土壤养分/有机碳/巴音布鲁克Key words
degenerated succession/alpine steppe/soil nutrition/organic carbon/Bayanbulak分类
农业科技引用本文复制引用
阿依敏·波拉提,安沙舟,董乙强,张爱宁,杨娇..巴音布鲁克高寒草原不同退化阶段土壤养分的变化[J].新疆农业科学,2017,54(5):953-960,8.基金项目
国家自然科学基金项目"巴音布鲁克高寒湿地CO2和CH4排放对水分变化的响应(41305136)" （41305136）
The National Natural Science Foundation of China "Response to Moisture Change of CO2 and CH4 Emission in Bayanbulak Alpine Wetland" (41305136) （41305136）
