生态环境学报Issue(4)：575-580,6.
衡阳紫色土丘陵坡地土壤酶活性对植被恢复的响应
Response of soil enzyme activities to re-vegetation on sloping-land with purple soils in Hengyang of Hunan province, China
摘要
Abstract
By using the space series to replace time courses, four typical sample plots, bare land stage(Ⅰ), herbaceous community stage(Ⅱ), shrubby community stage(Ⅲ), arborea community stage(Ⅳ) in similar and typical sites on the sloping-land with purple soils in Hengyang, standing for four different re-vegetation stages, were selected as the study objects to explore the distribution characteristics of soil enzyme activities in 0-10, 10-20, 20-40 cm soil layers and the responses of the soil enzyme activitive to re-vegetation. The results showed that: 1)The activities of URE(Urease), INV(Invertase) and APE (Alk-phosphatase) significantly increased(P<0.05), but the activity of CAT(Catalase) was in adverse in the process of re-vegetation(P<0.05); 2)With increasing soil depth, the activities of URE, INV and APE significantly decreased(P<0.05), but the activities significantly increased(P<0.05); 3)There existed very significant positive correlation among the activities of URE, INV and APE(P<0.01), and the activities of them were all very significantly positively correlated with WC(Water content), CLY(Clay), SOC(Soil organic carbon), TN(Total N), TP(Total P), AN(Available N), AK(Available K) and CEC(Cation exchange capacity)(P<0.01), and very significantly or significantly negatively correlated with BD(Bulk density) and pH values(P<0.05 orP<0.01); 4) The activities of CAT was very significantly negatively correlated with the activities of URE(P<0.01), and no significant correlated with the activities of INV and APE(P>0.05), very significantly or significantly negatively correlated with SOC,TN,AN,AK and CEC(P<0.05 orP<0.01), and significantly positively correlated with pH values(P<0.05); 5)The activities of URE,INV and APE could be used as the sensitive indicators for the dynamitic changes of soil qualities, and re-vegetation could improve the biological properties in both surface and deeper soil layer.关键词
植被恢复/土壤酶活性/土层/紫色土/衡阳Key words
Re-vegetation/Soil enzyme activity/Soil layers/Purple soils/Hengyang分类
资源环境引用本文复制引用
杨宁,杨满元,雷玉兰,艾昱,付美云,林仲桂..衡阳紫色土丘陵坡地土壤酶活性对植被恢复的响应[J].生态环境学报,2014,(4):575-580,6.基金项目
湖南省科技厅项目（S2006N332）；湖南省教育厅科学研究项目（12C1057）；湖南省林业科技创新计划项目（XLK201341）；湖南省普通高校青年骨干教师培养对象资助项目和湖南环境生物职业技术学院南岳学者基金项目 （）
