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当前位置: 首页 > 文章 > 巴音布鲁克高寒草原不同退化阶段土壤养分的变化 新疆农业科学 2017 (5) 953-960
Position: Home > Articles > Changes of Soil Nutrients in Different Degradation Stages of Alpine Steppe in Bayanbulak Xinjiang Agricultural Sciences 2017 (5) 953-960

巴音布鲁克高寒草原不同退化阶段土壤养分的变化

作  者：
阿依敏·波拉提;安沙舟;董乙强;张爱宁;杨娇
单  位：
新疆农业大学草业与环境科学学院/新疆草地资源与生态重点实验室
关键词：
退化演替;高寒草原;土壤养分;有机碳;巴音布鲁克
摘  要：
【目的】研究巴音布鲁克高寒草原退化草地土壤理化性状、土壤养分特征,为退化草地合理利用提供理论依据。【方法】采用常规土壤理化性质测定方法,对巴音布鲁克高寒草原退化草地土壤有机碳、全氮、全磷、全钾、碱解氮、速效磷、速效钾、土壤水分及容重等特征进行分析。【结果】随着草地退化程度的加剧,土壤各层(0~30 cm)有机碳、全氮、全磷、碱解氮、速效磷、含水量均呈下降趋势;而容重和pH值呈增加趋势;与未退化草地相比,重度退化草地土壤各层(0~30 cm)有机碳、全氮、全磷、碱解氮、速效磷和含水量分别降低了25.22%~31.96%、37.69%~48.44%、28.00%~30.24%、35.53%~52.47%、33.89%~44.84%和35.44%~57.62%;重度退化草地20~30 cm土层速效钾含量显著高于未退化草地,是未退化草地的1.96倍;全钾含量对退化程度的响应不明显(P>0.05)。【结论】巴音布鲁克高寒草原不同退化草地土壤养分含量明显下降。
译  名：
Changes of Soil Nutrients in Different Degradation Stages of Alpine Steppe in Bayanbulak
作  者：
Ayimin Bolati;AN Sha-zhou;DONG Yi-qiang;ZHANG Ai-ning;YANG Jiao;ollege of Pratacultural and Environmental Sciences/Key Laboratory of Grassland Resources and Ecology of Xinjiang,Xinjiang Agricultural University;
关键词：
degenerated succession;;alpine steppe;;soil nutrition;;organic carbon;;Bayanbulak
摘  要：
【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.

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