西南林业大学学报2018，Vol.38Issue(1)：16-22,7.DOI:10.11929/j.issn.2095-1914.2018.01.003
不同种植模式对铅污染土壤微生物数量及酶活性的影响
Effects of Different Planting Pattern on Soil Microbial Population and Enzyme Activities in Lead Contaminated Soil
摘要
Abstract
To analyze the remediation effects of different planting patterns on lead contaminated soil,a pot ex-periment was conducted to study rhizos phere and non-rhizos phere microbial biomass,soil enzymic activity and soil physical and chemical properties of 4 plants (Trifolium repens,Salvia splendens, Callistephus chinensis, Iris tecto-rum) of single or mixture inoculation. The results showed that the microbial biomass,soil enzymic activity,soil repi-rati and organic matter indexes always showed the rhizosphere>the non-rhizosphere>the control,mixed planting>monoculture>the control. The pH released that the control >the non-rhizosphere >the rhizosphere, the control >monoculture>mixed planting. The electrical conductivity and redox potential released that the non-rhizosphere>the rhizosphere,monoculture>mixed planting. While the Pb2+content showed that the control >the rhizosphere >the non-rhizosphere,the control>mixed planting>monoculture.Meanwhile,the effects of lead pollution on soil enzymic activity with bacteria were the greatest, followed by fungi and actinomycetes affected the lowest. And the effects of lead pollution on soil physical and chemical properties with bacteria were the greatest,followed by fungi and actino-mycetes affected the lowest. These facts showed that single and mixing planting pattern could alleviate the stress caused by Pb pollution,and mixed planting could improve the extent of soil heath and soil microbe diversity better than monoculture,and Trifolium repens intercropped with Iris tectorum was superior to those of other planting patterns.关键词
种植模式/铅污染/微生物数量/土壤/酶活性Key words
planting patterns/lead contamination/microbes quantity/soil/enzyme activities分类
农业科技引用本文复制引用
朱红霞,张建强,张家洋..不同种植模式对铅污染土壤微生物数量及酶活性的影响[J].西南林业大学学报,2018,38(1):16-22,7.基金项目
新乡市重点科技攻关项目(CXGG16034)资助 （CXGG16034）
河南省科技攻关项目(172102310629)资助 （172102310629）
河南省高等学校重点科研项目(16B180005)资助. （16B180005）
