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当前位置: 首页 > 文章 > 不同沙地植被对土壤酶活性的影响 草业学报 2010,19 (2) 253-256
Position: Home > Articles > Effects of different sandyland vegetation on soil enzyme activities Acta Prataculturae Sinica 2010,19 (2) 253-256

不同沙地植被对土壤酶活性的影响

作  者：
聂素梅;高丽;闫志坚;王素娟
单  位：
中国农业科学院草原研究所
关键词：
库布齐沙地;天然植被;人工植被;土壤酶活性
摘  要：
通过对库布齐沙地的流动沙地、半固定沙地、固定沙地和人工种植的沙打旺和塔落岩黄芪植被的土壤酶活性进行研究,结果表明,固定沙地和半固定沙地土壤蛋白酶、脲酶、转化酶活性比流动沙地增加6.73%~59.09%,固定沙地酶活性最大,其次为半固定沙地,流动沙地活性最弱。多酚氧化酶在固定沙地和半固定沙地比流动沙地均有所减少。人工植被的土壤蛋白酶、脲酶、多酚氧化酶和转化酶的活性比天然植被分别提高了23.41%,37.10%,7.96%和47.41%。土壤蛋白酶和转化酶在夏季活性最大,脲酶在秋季活性最大,多酚氧化酶在春季和冬季活性大。蛋白酶、脲酶和转化酶在土壤表层0~2 cm活性大,多酚氧化酶活性在0~20 cm土层范围内变化不明显。
译  名：
Effects of different sandyland vegetation on soil enzyme activities
作  者：
NIE Su-mei,GAO Li,YAN Zhi-jian,WANG Su-juan(Grassland Research Institute of Chinese Academy of Agricultural Science,Hohhot 010010,China)
关键词：
Kubuqi sandy land;natural vegetation;artificial vegetation;soil enzyme activity
摘  要：
Through the flow sand of Kubuqi sand,semi-fixed sandy land,fixed sandy land,and planted Astragalus adsurgens and Hedysarum laeve vegetation in soil enzyme activities to study,results showed that,fixed sandy land,and semi-fixed sand soil protease,urease,invertase activity than the flow of sand to increase the range of 6.73%-59.09%,fixed-sand activity the most,followed by semi-fixed sandy land,flow sand activity of the weakest.Polyphenol oxidase in the fixed sandy land and semi-fixed sandy land than the flow of sand are on the decline.Artificial vegetation,soil protease,urease,polyphenol oxidase and invertase activity than the natural vegetation were increased by 23.41%,37.10%,7.96% and 47.41%.Soil protease and invertase activity in the summer,the largest,urease activity of the largest in the fall,polyphenol oxidase activity in the spring and winter big.Protease,urease and invertase in the soil layer 0-2 cm activity is large,polyphenol oxidase activity at 0-20 cm soil layer did not change significantly.

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