| 高寒草甸退化草地土壤特性分析(英文) |
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| 引用本文： | 杨元武,李希来,周华坤.高寒草甸退化草地土壤特性分析(英文)[J].Agricultural Science&Technology,2011(8). |
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| 作者姓名： | 杨元武 李希来 周华坤 |
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| 作者单位： | 青海大学农牧学院草业科学系;西北高原生物研究所; |
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| 基金项目： | Supported by National Natural Science Foundation of China(30700563); the Middleaged Fund in Qinghai University(2009-QN-07)~~ |
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| 摘 要： | 目的]探讨草地退化对土壤理化性状的影响。方法]研究退化高寒草甸土壤草土比、土壤质地等物理性状,用土壤养分常规分析法分析不同退化草地土壤速效氮、速效磷、速效钾、有效铜、有效锌、有机质及pH等。结果]随着退化梯度的加剧和土层的加深,草土比逐渐减小;不同退化梯度的草地草土比在土层0～10cm中最大,该层的草土比在0.00100～0.04000变化,土壤类型为壤土类。不同退化梯度上土壤化学性质均发生变化,其中速效氮、磷、钾含量随土层的加深和退化程度的加剧明显减少。退化草地的微量元素铜、锌含量比较缺乏。结论]各种养分含量和pH与退化草地演替度的大小无显著相关。
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| 关 键 词： | 高寒草甸 退化草地 草土比 土壤质地 化学性质 |
Analysis for Soil Characteristics of Degraded Grassland on Alpine Meadow |
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| YANG Yuan-wu,LI Xi-lai,ZHOU Hua-kun .Agriculture , Animal Husb,ry College,Qinghai University,Xining ,.Northwest Institute of Plateau Biology,Chinese Academy of Sciences,Xining.Analysis for Soil Characteristics of Degraded Grassland on Alpine Meadow[J].农业科学与技术(英文版),2011(8). |
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| Authors: | YANG Yuan-wu LI Xi-lai ZHOU Hua-kun Agriculture Animal Husb ry College Qinghai University Xining Northwest Institute of Plateau Biology Chinese Academy of Sciences Xining |
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| Institution: | YANG Yuan-wu1,LI Xi-lai1,ZHOU Hua-kun2 1.Agriculture and Animal Husbandry College,Qinghai University,Xining 810016,2.Northwest Institute of Plateau Biology,Chinese Academy of Sciences,Xining 810001 |
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| Abstract: | Objective]The aim of this study is to explore the effects of grassland degradation on soil physical and chemical properties.Method]The ratio of plant root to soil and soil texture on Alpine Meadow were investigated in this study,and soil available N,P,K,Cu,Zn,organic matter and pH value were also analyzed by routine analysis of soil nutrients in different degraded grasslands.Result]With the intensification of degraded gradient and the soil depth,the ratio of plant root to soil was decreased gradually.The... |
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| Keywords: | Alpine meadow Degraded grassland Ratio of plant root to soil Soil texture Chemical characteristics |
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