Macrobenthic assemblage characteristics under stressed waters and ecological health assessment using AMBI and M-AMBI: a case study at the Xin’an River Estuary, Yantai, China

Zhou, Zhengquan; Li, Xiaojing; Chen, Linlin; Li, Baoquan; Liu, Tiantian; Ai, Binghua; Yang, Liangbao; Liu, Bo; Chen, Qiao

doi:10.1007/s13131-018-1180-x

Cited by 23 publications

(13 citation statements)

References 52 publications

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“…Overland flow characteristics are mainly affected by surface coverage, slope, and flow discharge [5,6]. Vegetation plays an important role in the benign cycle of the ecological environment and has become an indispensable part of the ecological environment, so it is for the ecological slope [7][8][9][10][11][12]. Vegetation modifies the mixing effect of turbulence and dissipates the energy of overland flow, affects sediment transport and settlement, and then reduces soil erosion on slopes.…”

Section: Introductionmentioning

confidence: 99%

Overland Flow Resistance Law under Sparse Stem Vegetation Coverage

Zhang

Chen

et al. 2021

Water

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To explore the characteristics of overland flow resistance under the condition of sparse vegetative stem coverage and improve the basic theoretical research of overland flow, the resistance characteristics of overland flow were systematically investigated under four slope gradients (S), seven flow discharges (Q), and six degrees of vegetation coverage (Cr). The results show that the Manning roughness coefficient (n) changes with the ratio of water depth to vegetation height (h/hv) while the Reynolds number (Re), Froude number (Fr), and slope (S) are closely related to vegetation coverage. Meanwhile, h/hv, Re, and Cr have strong positive correlations with n, while Fr and S have strong negative correlations with n. Through data regression analysis, a power function relationship between n and hydraulic parameters was observed and sensitivity analysis was performed. It was concluded that the relationship between n and h/hv, Re, Cr, Q, and S shows the same law; in particular, for sparse stem vegetation coverage, Cr is the dominant factor affecting overland flow resistance under zero slope condition, while Cr is no longer the first dominant factor affecting overland flow resistance under non-zero slope condition. In the relationship between n and Fr, Cr has the least effect on overland flow resistance. This indicates that when Manning roughness coefficient is correlated with different hydraulic parameters, the same vegetation coverage has different effects on overland flow resistance. Therefore, it is necessary to study overland flow resistance under the condition of sparse stalk vegetation coverage.

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Section: Introductionmentioning

confidence: 99%

Overland Flow Resistance Law under Sparse Stem Vegetation Coverage

Zhang

Chen

et al. 2021

Water

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“…Although the research on the relationship between karst development and its natural environment in China started late (Zhang et al 1985), it has made rapid progress in recent years, especially in the study and investigation of karst in northern China (Liu et al 1992;Yuan 1993;Liu et al 2000;Zhao et al 2008;Liang and Han 2013). Particularly with the development of geophysical techniques (Li et al 2011;Xu et al 2011;Yue et al 2012;Mei et al 2012;Xiao 2013;Lin et al 2013;Yi et al 2013;Shi et al 2013;Zhao et al 2014;Tian et al 2014;Chen et al 2015;Yang et al 2015;Zhou et al 2018;Jiang et al 2018;Wegierek et al 2018;Zhai et al 2018), the exploration of karst is becoming more and more refined, and the role of karst research in the field of scientific research and technology application in China is increasingly prominent.…”

Section: Introductionmentioning

confidence: 99%

Study on the characteristics of karst development in Beijing

Sun

Wang

et al. 2020

Carbonates Evaporites

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The distribution area of carbonate rocks in Beijing is about 5071.44 km 2 , accounting for 30.19% of the land area in Beijing. The distribution areas of bare, covered and buried carbonate rocks are 2862.21 km 2 , 401.86 km 2 , 1803.37 km 2 , respectively. The carbonate rocks mainly includes dolomite in Changcheng Group of Jixian System (Jxg), dolomite in Wumishan Group of Jixian System (Jxw), dolomite in Tieling Group of Jixian System (Jxt), Cambrian limestone (Є), Ordovician limestone (O) and carbonate rocks with different ages. The characteristics of karst development in Beijing differ from region to region. In the mountainous areas of dolomite in Changcheng System and Jixian System of Proterozoic, the karst landforms such as hoodoos, series of peaks and gorges are formed by the influence of rock differential solution and shear joints. In the Cambrian and Ordovician limestone distribution areas, middle-low mountains and uvalas are formed; the covered karst is affected by rock composition, regional structure control and environment, and the degree of karst development varies in different regions. According to the ground karst, karst caves distribution and karst spring distribution in Beijing area, the karst development in Beijing is summarized into three types: karst system-based (mainly developed karst cave system), fissure-based (basically undeveloped caves and karst springs, mainly for the development of underground joint fissures in the concealed area) and composite type (the karst spring with relatively large distribution, and a small number of ground karst caves, and the development of underground joint fissures). According to the distribution characteristics of 271 karst water boreholes, 563 geothermal boreholes, 258 ground surface karst caves and 499 karst springs in Beijing, the karst development in Beijing also has typical characteristics of heterogeneity, stratification and staging.

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“…However, using the Life Cycle Assessment Method to analyze environmental problems produced in the process of integrated exploitation of tailings, can calculate their environmental pollution values in advance from the beginning of technology designing and achieve the goal of green production from the origin. There are a lot of assessment methods at present (Ni et al, 2018;Zhai et al, 2018;Zhao et al, 2018;Zhou et al, 2018;Li et al, 2017;Yang et al, 2017;Jin et al, 2015;Li et al, 2015b;Song et al, 2015;Yan et al, 2014). Most of the methods are based on the current situation, and only the Life Cycle Assessment (LCA) starts from the source.…”

Section: Introductionmentioning

confidence: 99%

Life Cycle Assessment of Integrated Exploitation Technology for Tailings in Bayan Obo Mine, China

Wang¹,

Jiao²,

Lu³

et al. 2019

Appl. Ecol. Env. Res.

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Bayan Obo mine in China is the largest iron-niobium-rare-earth symbiotic and associated mine in the world. Its exploitation has brought great economic benefit over the years. At the same time, many environmental problems arise. One of the most serious problems is tailings. Based on the theory and method of life cycle assessment, the environmental problems caused by integrated exploitation technology for tailings in Bayan Obo mine have been studied. Environmental impact assessment method TRACI 2.1 developed by Environmental Protection Agency of the United States has been chosen in this study. Through the study of resource consumption, energy consumption, pollution input by raw materials, pollution from industrial emissions etc. of each process, 10 types of environmental impacts have been studied and their values have been calculated. Results show that the main environmental impact types are Human toxicity non-cancer, Human toxicity cancer, Ecotoxicity, Global warming air, Human health particulate air, respectively. And the pollution input by raw materials is much greater than that from industrial emission, which provides a typical case and support for green purchasing, green manufacturing, process improving etc.

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Macrobenthic assemblage characteristics under stressed waters and ecological health assessment using AMBI and M-AMBI: a case study at the Xin’an River Estuary, Yantai, China

Cited by 23 publications

References 52 publications

Overland Flow Resistance Law under Sparse Stem Vegetation Coverage

Overland Flow Resistance Law under Sparse Stem Vegetation Coverage

Study on the characteristics of karst development in Beijing

Life Cycle Assessment of Integrated Exploitation Technology for Tailings in Bayan Obo Mine, China

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