文献类型：期刊文章

作　　者：常学秀[1] 文传浩[1] 沈其荣[2] 王焕校[1]

机构地区：[1]云南大学环境科学系,昆明650091 [2]南京农业大学资源与环境学院,南京210095

出　　处：《生态学杂志》

基　　金：云南省应用基础研究基金项目 ( 97C0 10M )资助

年　　份：2001

卷　　号：20

期　　号：4

起止页码：5-8

语　　种：中文

收录情况：AJ、BDHX、BDHX2000、BIOSISPREVIEWS、CAS、CSCD、CSCD2011_2012、GEOBASE、IC、JST、RCCSE、SCOPUS、WOS、ZGKJHX、ZR、核心刊

摘　　要：The paper deals mainly with the difference of activities of five enzymes (hydrogen peroxidase,pyrogallic oxidase,invertase,urease and protease) in rhizosphere and non-rhizosphere soil from zinc smeltery polluted and control (CK) wheat lands.At the same time,the pH and different forms of elements such as N,P,K,Pb,Cd,Zn,Fe,Mn,Cu are determined.From the result,we can see that:① The pH of soil from polluted rhizosphere is higher than that of from polluted non-rhizosphere.The pH of soil from CK rhizosphere is nearly equal to that of from CK non-rhizosphere.There are same variation tendency of N,P,K between polluted soil and CK soil:The concentrations of available N and K are equal statisticly,but the concentration of available P of rhizosphere is dramaticlly higher than that of non-rhizosphere;② The main heavy metal element of polluted soil is Pb;③ The activities of five enzymes in rhizosphere soil are higher than those of non-rhizosphere soil.The difference between rhizosphere and non-rhizosphere soil enzyme activities of CK soil is bigger than that of polluted soil.This result indicates that the polluted wheat roots have a smaller rhizosphere effect;④Except of the protease,the rhizosphere soil enzyme activities of zinc smeltery polluted wheat lands are significantly higher than those of CK lands.The result indicates there are inhibitors can inhibit hydrogen peroxidase,pyrogallic oxidase,invertase,urease and activators can activate protease.So the soil enzyme activities can be used as indicators of soil pollution situation only when the enzymes are sensitive on certain pollutants.

关 键 词：锌厂 铅污染 农田  小麦 根际 非根际  土壤酶活性

分 类 号：S154.2] X53]