石灰岩退化生态系统不同恢复阶段土壤酶活性研究何跃军.pdfVIP

DOI :10.13287/j.1001 -9332.2005.0100 　2005 6 　 16 　6 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 CHINESE OU RNA L OF A PPLIED ECOLO GY, un.2005, 16(6)∶1077 ～ 1081 ＊ 1,2 1 ＊＊ 2 1 1 1 何跃军 　钟章成 　刘济明　刘锦春 　金　静 　李青雨 1 2 (, , 400715;, 550025) 【】　., ;, , 、 .:, . pH , , .-, , . 　　　 　100 1-9332 (2005)06-1077-05　　Q948.113　　A Soil enzyme activities of limestone degraded ecosystem at its different restoration phases.HE Yuejun1,2, 1 2 1 1 1 1 ZHONG Zhangcheng , LI U iming , LI U inchun , IN ing , LI Qingyu (K ey Laboratory of Eco-Environ- ments in Three Gorges Reservoir Region of Education Ministry, College of Lif e Science, Southwest China Nor- 2 mal University, Chong ing 4007 15, China;College of Forestry, Guizhou University, Guiyang 550025, Chi- na).-Chin .J .App l .Ecol ., 2005, 16(6):1077 ～ 1081. T he study show ed that there was no distinct descending of enzyme activities along the soil profile of limestone de- graded ecosystem,w hich were enhanced with progressive succession, and varied with vegetation characteristics, soil types, and soil enzyme properties.On the w hole, soil enzyme activities enhanced in order of herb Cupres- suss f unebris high forestshrubbery, and under the same veg etation, limestone Cup ressuss f unebris high forest had higher soil enzyme activities than purple psammophytia.T here was no sig nificant correlation between soil en- zyme activities and soil pH, while significant correlation w as found betw een soil moisture content, soil total nitro- gen content and soil enzyme acti