文献类型：期刊文献

英文题名：Significant Impacts of Both Total Amount and Availability of Heavy Metals on the Functions and Assembly of Soil Microbial Communities in Different Land Use Patterns

作者：Zhen, Zhen[1];Wang, Sibo[2];Luo, Shuwen[2];Ren, Lei[1];Liang, Yanqiu[2];Yang, Rongchao[1];Li, Yongtao[3];Zhang, Yueqin[1];Deng, Songqiang[4];Zou, Lina[4];Lin, Zhong[2];Zhang, Dayi[5]

机构：[1]Guangdong Ocean Univ, Agr Coll, Zhanjiang, Peoples R China;[2]Guangdong Ocean Univ, Fac Chem & Environm Sci, Zhanjiang, Peoples R China;[3]South China Agr Univ, Coll Nat Resources & Environm, Guangzhou, Guangdong, Peoples R China;[4]Res Inst Environm Innovat Tsinghua, Suzhou, Peoples R China;[5]Tsinghua Univ, Sch Environm, Beijing, Peoples R China

年份：2019

卷号：10

外文期刊名：FRONTIERS IN MICROBIOLOGY

收录：SCI-EXPANDED(收录号：WOS:000491333400001)、、Scopus(收录号：2-s2.0-85073676113)、WOS

基金：This work was financially supported by the National Natural Science Foundation of China (Nos. 41301252 and 31800109), National Science and Technology Support Program (No. 2015BAD05B05), Natural Science Foundation of Guangdong Province (Nos. 2018A030313131, 2018A030307054, 2017A030310662, and 2016A030310330), and Special Fund for Outstanding Young Teachers of Guangdong Ocean University (No. HDYQ2017004). DZ acknowledges the support of Chinese Government's Thousand Talents Plan for Young Professionals.

语种：英文

外文关键词：land use; heavy metals; heavy metal availability; soil bacterial community; ecological function

外文摘要：Land use change alters the accumulation of heavy metals (HMs) in soils and might have significant influence on the assembly and functions of soil microbial community. Although numerous studies have discussed the impacts of either total amounts or availability of metals on soil microbes in land change, there is still limited understanding on which one is more critical. In the present study, soils from three land use types (forest, mining field, and operating factory) located in Shaoguan city (Guangdong Province, China) were collected to investigate the impacts of soil HMs on soil enzyme activities and bacterial community structures. Mining activities remarkably increased the concentrations of HMs in soils, and land use patterns changed soil properties and nutrition level. Soil pH, total and available HMs (Cu, Pb, Zn, and Cd) and organic matters (SOM) were identified as the key influential factors shaping soil ecological functions (soil enzyme activities) and community assembly (bacterial community composition), explained by HMs accumulation and soil acidification caused by human activities. In addition, total amount and availability of some metals (Zn, Pb, Cu, and Cd) showed similar and significant effects on soil bacterial communities. Our findings provide new clues for reassessing the environmental risks of HMs in soils with different land use.