Ecological risk assessment of heavy metal contamination of mining area soil based on land type changes: An information network environ analysis

doi:10.1016/j.ecolmodel.2021.109633

	Ecological risk assessment of heavy metal contamination of mining area soil based on land type changes: An information network environ analysis
	Lu, Jingzhao 1,2; Lu, Hongwei 2; Wang, Weipeng 3; Feng, SanSan 3; Lei, Kaiwen 3
刊名	ECOLOGICAL MODELLING
	2021-09-01
卷号	455 页码:13
关键词	Network environ analysis (NEA) The finite element method (FEM) Ecological risk assessment Heavy metals Mining ecosystems
ISSN号	0304-3800
DOI	10.1016/j.ecolmodel.2021.109633
通讯作者	Lu, Hongwei(luhw@igsnrr.ac.cn)
英文摘要	In this study, a grid-based network environ analysis (FEM-NEA) framework was developed to identify the ecological risks of the internal components within a landscape scale mining ecosystem with multiple land types. In this framework, an information-based network analysis is applied for addressing ecological risk assessments (ERA) based on control allocation (CA) and energy flow matrix, which can quantificationally reflect the relationship between soil ecosystems and ecological communities. In order to improve the computational accuracy and efficiency, the FEM and information-based network analysis are combined to further quantify the flow risk among different components within each grid as well as the whole ecosystem. Compared with the existing NEAERA model, various risk factors and receptors are compatible with the proposed FEM-NEA framework and both direct and indirect effects can be taken into consideration altogether. By taking an abandoned mining area of the Yanshan mountain as an example, risk propagation between all component of the ecosystem concerning both direct risk and integral risk dynamic were quantified. The results showed that contaminated soil normally poses risks to surrounding ecological environment, thereby affecting local vegetation and microorganisms. Afterward, the risks are passed throughout the ecosystem, forming threats to herbivores and predators via the food chain. Here, the probability of risk is ranked as follows: village> farmland> bare land> woodland. Moreover, the influence of input energy and data attributes on the prediction results are also discussed. When the input energy rises by 50%, the control allocation (CA) from herbivores to soil microorganisms correspondingly increases by 1.00% but the value from herbivores to carnivores decreases by 0.71%. This highlights the robustness of the proposed ecological risk assessment framework (FEM-NEA). In general, the FEM-NEA results not only presents the macro-scale risk distribution caused by the interaction of each component, but also reflects the potential migration direction of the risk center. Findings can provide a new perspective and method for assessing ecological risks and also help support remediation techniques for contaminated areas with different land types.
资助项目	Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK1003] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA20040301] ; National Natural Science Foundation of China[41890824] ; National Key Research and Development Program of China[2019YFC0507801] ; CAS Interdisciplinary Innovation TeamGlobal Change Hydrology
WOS关键词	NEUSE RIVER ESTUARY ; 7-COMPARTMENT MODEL ; DISTRIBUTED CONTROL ; NITROGEN FLOW ; POLLUTION ; MINE ; PHYTOREMEDIATION ; BIOAVAILABILITY ; DISAGGREGATION ; PERSPECTIVES
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000674509200001
资助机构	Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; CAS Interdisciplinary Innovation TeamGlobal Change Hydrology
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/163717]
专题	中国科学院地理科学与资源研究所
通讯作者	Lu, Hongwei
作者单位	1.Hebei Agr Univ, Coll Sci & Technol, Cangzhou 061100, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 3.North China Elect Power Univ, Sch Renewable Energy, Beijing 102206, Peoples R China
推荐引用方式 GB/T 7714	Lu, Jingzhao,Lu, Hongwei,Wang, Weipeng,et al. Ecological risk assessment of heavy metal contamination of mining area soil based on land type changes: An information network environ analysis[J]. ECOLOGICAL MODELLING,2021,455:13.
APA	Lu, Jingzhao,Lu, Hongwei,Wang, Weipeng,Feng, SanSan,&Lei, Kaiwen.(2021).Ecological risk assessment of heavy metal contamination of mining area soil based on land type changes: An information network environ analysis.ECOLOGICAL MODELLING,455,13.
MLA	Lu, Jingzhao,et al."Ecological risk assessment of heavy metal contamination of mining area soil based on land type changes: An information network environ analysis".ECOLOGICAL MODELLING 455(2021):13.