| 放牧与围封对呼伦贝尔针茅草原土壤酶活性及理化性质的影响 |
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| 引用本文： | 赵帅,张静妮,赖欣,杨殿林,赵建宁. 放牧与围封对呼伦贝尔针茅草原土壤酶活性及理化性质的影响[J]. 中国草地学报, 2011, 33(1) |
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| 作者姓名： | 赵帅 张静妮 赖欣 杨殿林 赵建宁 |
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| 作者单位： | 农业部环境保护科研监测所,天津,300191 |
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| 基金项目： | 国家自然科学基金，中国农业科学院院长基金，中央级公益性科研院所基本科研业务费专项资金(农业部环境保护科研监测所)资助项目 |
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| 摘 要： | 以呼伦贝尔地带性植被贝加尔针茅草原、大针茅草原和克氏针茅草原为研究对象,研究了放牧和围封对不同类型针茅草原土壤酶活性和理化性质的影响.结果表明,围栏内外草原土壤理化性质差异显著.放牧压力下,土壤容重、pH值均显著升高,土壤含水量、有机质含量显著降低,大针茅草原和克氏针茅草原土壤全氮、全磷含量亦显著下降.各植被类型草原土壤碱性磷酸酶和转化酶放牧样地较围封样地呈现活性增加的趋势,脲酶和过氧化氢酶的活性变化因植被类型不同而各有差异.土壤酶活性与土壤有机质、全氮、速效磷之间具有显著的相关性,可以用来指示草原退化与恢复状况.
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| 关 键 词： | 呼伦贝尔针茅草原 放牧 围栏 土壤酶活性 土壤理化性质 |
Effects of Grazing and Fencing on Soil Enzyme Activity and Soil Physicochemical Properties in Stipa Steppe in Hulunbeier,Inner Mongolia |
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| ZHAO Shuai,ZHANG Jing-ni,LAI Xin,YANG Dian-lin,ZHAO Jian-ning. Effects of Grazing and Fencing on Soil Enzyme Activity and Soil Physicochemical Properties in Stipa Steppe in Hulunbeier,Inner Mongolia[J]. Chinese Journal of Grassland, 2011, 33(1) |
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| Authors: | ZHAO Shuai ZHANG Jing-ni LAI Xin YANG Dian-lin ZHAO Jian-ning |
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| Affiliation: | ZHAO Shuai,ZHANG Jing-ni,LAI Xin,YANG Dian-lin,ZHAO Jian-ning(Agro-Environmental Protection Institute,Ministry of Agriculture,Tianjin 300191,China) |
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| Abstract: | Effects of grazing and fencing on soil enzyme activity and physicochemical properties were studied in Stipa baicalensis meadow steppe,Stipa grandis typical steppe,and Stipa krylovii typical steppe in Hulunbeier.The results showed that there were significant differences in soil physicochemical properties inside and outside fence.Under grazing pressure,the soil bulk density and pH value increased markedly,but the content of soil water and soil organic matter decreased significantly,total soil nitrogen content... |
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| Keywords: | Stipa steppe in Hulunbeier Grazing Fencing Soil enzyme activity Soil physicochemical properties |
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