【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。更多还原

【Abstract】 Colorimetry method of Folin-Ciocalteu 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>fall>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.更多还原