环境保护科学2016，Vol.42Issue(4)：90-96,7.DOI:10.16803/j.cnki.issn.1004-6216.2016.04.019
再生水中的Pb对萝卜根际土壤微生物群落结构的影响研究
Impacts of Lead in the Reclaimed Water on the Microbial Community Structures in the Radish Rhizosphere
摘要
Abstract
In this paper, by application of pot experiments, impacts of reclaimed water, reclaimed water plus Pb, tap water plus Pb, and tap water alone as a control on microbial community structures in the radish rhizosphere were studied in the greenhouse. The results showed that the impacts on the total soil phospholipid fatty acids (PLFAs) and each microbial community biomass were shown in the order of reclaimed water>reclaimed water plus Pb>tap water>tap water plus Pb. Irrigation with reclaimed water was favorable for increasing the quantity of different soil microbial groups and enriching the microbial diversity. Irrigation with reclaimed water plus Pb and tap water plus Pb inhibited the quantity of the soil microbial groups, especially for gram-negative bacteria. Principal component analysis indicated that the effect of reclaimed water on the microbial structures had the biggest difference from that of the tap water. Various soil microbial groups were strongly positively correlated with the contents of available potassium and nitrates (P<0.01). Fungi and actinomycetes were significantly positively correlated with the content of soil organic matter (P<0.01). Gram-positive and gram-negative bacteria showed a significant positive correlation with pH (P<0.01). Gram-positive and gram-negative bacteria were significantly negatively correlated with the fresh weight of the radish underground part. Different soil microbial groups were strongly positively correlated with the contents of nitrates in the radish leaves as well as the root-shoot ratio (P<0.01).关键词
再生水/Pb/土壤性质/根际微生物Key words
Reclaimed Water/Pb/Soil Property/Rhizospheric Microbial分类
资源环境引用本文复制引用
施宠,李阳,黄长福,王文全..再生水中的Pb对萝卜根际土壤微生物群落结构的影响研究[J].环境保护科学,2016,42(4):90-96,7.基金项目
国家自然科学基金(21267022)资助项目；新疆维吾尔自治区土壤学重点学科项目资助 （21267022）
