内蒙古库布齐沙地土壤蛋白酶初步研究  

The preliminary research of soil prolease on Khobqi sand area of Inner Mongolia

作　　者：王素娟[1,2,3] 高丽[1,3] 苏和[1,3] 闫志坚[1,3] 聂素梅[1,3] 

机构地区：[1]中国农业科学院草原研究所,内蒙古呼和浩特010010 [2]中国农业科学院研究生院,北京100081 [3]草地资源与生态重点开放实验室,内蒙古呼和浩特010010

出　　处：《草业科学》2009年第9期13-17,共5页Pratacultural Science

基　　金：中央级公益性科研院所基本科研业务费专项资金(中国农业科学院草原研究所)资助项目

摘　　要：用Folin-Ciocalteu比色法对库布齐沙地不同生境下土壤蛋白酶活性进行了测定,结果表明：在流动沙地中,土壤蛋白酶活性的季节变化为夏季〉春季〉秋季〉冬季,垂直变化为10-20 cm〉2-5 cm〉5-10cm〉0-2 cm。在半固定和固定沙地中,土壤蛋白酶活性的季节变化为夏季〉秋季〉春季〉冬季,垂直变化为0-2 cm〉2-5 cm〉5-10 cm〉10-20 cm。在半固定沙地中无结皮类型的土壤蛋白酶活性大于藻结皮类型,在固定沙地中藓结皮类型土壤蛋白酶活性〉藻结皮类型〉无结皮类型。Colorimetry method of Folin-Ciocaheu was used to measure prolease activity of soil in different habitats of Khobqi sand area. The result showed that the seasonal change of soil prolease activity was summer）spring.fail.winter on flow sandlot, the vertical variation was 10-20 cm〉2-5 cm〉 5-10 cm〉0-2 cm. On the half fixed and fixed sandlot, the seasonal change of soil prolease activity was summer〉fall〉spring〉winter, the vertical variation was 0-2 cm〉2-5 cm〉5-10 cm〉10-20 cm. The soil prolease activity of no crust type was higher than the algea crust type on half fixed sandlot. The soil prolease activity of moss crust was higher than the algea crust and no crust sandlot on fixed sandy.

关 键 词：库布齐沙地 不同沙地类型 土壤蛋白酶 

分 类 号：S154[农业科学—土壤学]