Ecological risk of combined pollution on soil ecosystem functions: Insight from the functional sensitivity and stability

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Ecological risk of combined pollution on soil ecosystem functions: Insight from the functional sensitivity and stability
	Jiang, Rong 4; Wang, Meie ; Chen, Weiping ; Li, Xuzhi 1; Balseiro-Romero, Maria ; Baveye, Philippe C.
刊名	ENVIRONMENTAL POLLUTION
	2019-12-01
卷号	255 页码:-
关键词	Combined pollution Functional sensitivity Functional stability Soil microbial communities Ecological risk assessment
ISSN号	0269-7491
英文摘要	Assessing the ecological risk of combined pollution, especially from a holistic perspective with the consideration of the overarching functions of soil ecosystem, is crucial and beneficial to the improvement of ecological risk assessment (ERA) framework. In this study, four soils with similar physicochemical properties but contrasting heavy metals contamination levels were selected to explore changes in the integrated functional sensitivity (MSI), resistance (MRS) and resilience (MRL) of soil microbial communities subjected to herbicide siduron, based on which the ecological risk of the accumulation of siduron in the four studied soils were evaluated. The results suggested that the microbial biomass carbon, activity of denitrification enzyme and nitrogenase were indicative of MSI and MRS, and the same three parameters plus soil basal respiration were indicative of MRL. Significant dose-effect relationships between siduron residues in soils and MSI, MRS and MRL under combined pollution were observed. Heavy metal polluted soils showed higher sensitivity and lower resistance to the additional disturbance of herbicide siduron due to the lower microbial biomass, while the resilience of heavy metal polluted soils was much higher due to the pre-adaption to the chemical stresses. The quantifiable indicator microbial functional stability was incorporated in the framework of ERA and the results showed that the accumulation of siduron in the studied soils could exhibit potential harm to the integrated functional stability of soil microbial community. Thus, this work provides insights into the application of integrated function of soil microbial community into the framework of ERA. (C) 2019 Elsevier Ltd. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/42400]
专题	生态环境研究中心_城市与区域生态国家重点实验室
作者单位	1.Univ Santiago de Compostela, Dept Soil Sci & Agr Chem, Santiago De Compostela 15782, Spain 2.Balseiro-Romero, Maria; Baveye, Philippe C.] Univ Paris Saclay, AgroParisTech, UMR ECOSYS, Ave Lucien Bretignieres, F-78850 Thiverval Grignon, France 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, State Key Lab Urban & Reg Ecol, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China 5.Minist Ecol & Environm, Nanjing Inst Environm Sci, State Environm Protect Key Lab Soil Environm Mana, Nanjing 210042, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Rong,Wang, Meie,Chen, Weiping,et al. Ecological risk of combined pollution on soil ecosystem functions: Insight from the functional sensitivity and stability[J]. ENVIRONMENTAL POLLUTION,2019,255:-.
APA	Jiang, Rong,Wang, Meie,Chen, Weiping,Li, Xuzhi,Balseiro-Romero, Maria,&Baveye, Philippe C..(2019).Ecological risk of combined pollution on soil ecosystem functions: Insight from the functional sensitivity and stability.ENVIRONMENTAL POLLUTION,255,-.
MLA	Jiang, Rong,et al."Ecological risk of combined pollution on soil ecosystem functions: Insight from the functional sensitivity and stability".ENVIRONMENTAL POLLUTION 255(2019):-.