scholarly journals Comprehensive evaluation of the water environment carrying capacity of a river basin: a case study of the Weihe River Basin in China

Water Policy ◽  
2021 ◽  
Author(s):  
Buqing Yan ◽  
Yiqi Wang ◽  
Guoping Li ◽  
Xiaohui Ding
Keyword(s):  
River Basin ◽  
Carrying Capacity ◽  
Comprehensive Evaluation ◽  
Local Development ◽  
Water Environment ◽  
Analytic Hierarchy ◽  
Rapid Economic Growth ◽  
Weihe River ◽  
Weihe River Basin ◽  
Basin Area

Abstract By combining the analytic hierarchy process (AHP) and system dynamics (SD) models, a compound index system is established for simulating and evaluating the water environment carrying capacity (WECC) of the Weihe River Basin. The development tendencies of the population, economy, water resource demand and supply, water environment, water pollution, and water management were obtained from 2005 to 2040 by applying the five scenarios designed in this study. The results indicate that the comprehensive solution scenario was the optimal scenario, and the WECC would upgrade from a ‘general’ status to a ‘good’ status. Moreover, the blind pursuit of rapid economic growth is inadvisable, and it will compromise the sustainability of the river basin area. The river basin area should divert local development modes toward increased sustainability, emphasizing the coordinated development of society, the economy, and the environment.

scholarly journals Sustainable Development Evaluation and Its Obstacle Factors of the Weihe River Basin in Shaanxi Province, China

2021 ◽  
Vol 9 ◽  
Author(s):  
Yirui Wang ◽  
Jinxi Song ◽  
Xuexian Zhang ◽  
Haotian Sun
Keyword(s):  
Sustainable Development ◽  
Social Development ◽  
River Basin ◽  
Water Environment ◽  
Indicator System ◽  
Entropy Method ◽  
Shaanxi Province ◽  
Development Level ◽  
Weihe River ◽  
Weihe River Basin

The contradiction between economic growth, social development, and water environment deterioration represent significant challenges for river basin sustainable development. By constructing an indicator system of river basin sustainable development, the entropy method is adopted to conduct a quantitative evaluation of the cities sustainable development level for the Weihe River Basin in Shaanxi Province from 2009 to 2018, and the standard deviational ellipse is used to analyze the evolution of spatial distribution pattern of sustainable development in the study area. Furthermore, the obstacle degree model is applied to analyze the main obstacle factors restricting the improvement of river basin sustainable development. The results show that the sustainable development level of the Weihe River basin in Shaanxi Province improved slowly during the study period and significant regional differences among cities. This study provides a novel approach for future evaluation on sustainable development of the Weihe River basin and even the arid region in Northwest China, to achieve a win-win situation between economic and social development and ecological environment protection.

scholarly journals System dynamics simulation for the coordinative development of socio-economy and environment in the Weihe River Basin, China

Water Policy ◽  
2021 ◽  
Author(s):  
Yiqi Wang ◽  
Xiaohui Ding ◽  
Yanran Ma ◽  
Buqing Yan
Keyword(s):  
Economic Development ◽  
System Dynamics ◽  
River Basin ◽  
Water Environment ◽  
Dynamics Model ◽  
Collaborative Development ◽  
Demand And Supply ◽  
Socio Economic Development ◽  
Weihe River ◽  
Weihe River Basin

Abstract A reliable system simulation combining socio-economic development with water environment and comprehensively reflect a watershed's dynamic features is crucial. In this study, a complex system dynamics model is constructed to evaluate dynamic changes of socio-economic development and ecological environment of Weihe River Basin (WHR). Development trends of the population, economy, land resources, water demand and supply, water environment and water pollution and management are obtained from 2005 to 2030 through scenarios analysis representing different regional development orientations, namely, population growth (S1), economic leading (S2), resources saving (S3), environment leading (S4), collaborative development (S5). Compared with other scenarios, the total population and GDP will, respectively, reach 3,716.55 × 104 person and 40,077.30 × 108 yuan, and the gap between demand and supply and the amount of water pollution will, respectively, narrow to 0.56 × 108 and 12.26 × 108 cubic meters in collaborative development scenario (S5). The results reveal the collaborative development scenario (S5) can achieve not only steady population and economy growth, as well as narrow down the gap between water supply and demand, but also optimize watershed environment management of the WHR. Thus, the system dynamics model used in our research provides a powerful tool for assisting decision-making on issues of coordinative socio-economic development, environmental health protection, water resources conservation, etc. in a river basin area.

Elevation Cluster Dataset Covering the Weihe River Basin

GCdataPR ◽  
2020 ◽  
Author(s):  
Fengli ZHA ◽  
Chuang LIU ◽  
Ruixiang SHI
Keyword(s):  
River Basin ◽  
Weihe River ◽  
Weihe River Basin

Boundary Data of the Weihe River Basin, China

GCdataPR ◽  
2020 ◽  
Author(s):  
Yuefei HUANG ◽  
Tiejian LI ◽  
Enze LV ◽  
Jiaye LI ◽  
Rui BAI ◽  
...  
Keyword(s):  
River Basin ◽  
Boundary Data ◽  
Weihe River ◽  
Weihe River Basin

scholarly journals Effect of Hyporheic Exchange on Macroinvertebrate Community in the Weihe River Basin, China

Water ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 457
Author(s):  
Qidong Lin ◽  
Jinxi Song ◽  
Carlo Gualtieri ◽  
Dandong Cheng ◽  
Ping Su ◽  
...  
Keyword(s):  
River Basin ◽  
Transport Processes ◽  
Macroinvertebrate Community ◽  
Hyporheic Exchange ◽  
Macroinvertebrate Communities ◽  
Fine Grained ◽  
River Bed ◽  
Weihe River ◽  
Abundance And Diversity ◽  
Weihe River Basin

The effect of hyporheic exchange on macroinvertebrates is a significant topic in ecohydraulics. A field study was conducted during May and June 2017 to investigate the impacts of magnitude and patterns of hyporheic exchange on the sediment macroinvertebrate community in the Weihe River basin. The results demonstrate that upwelling flows cause resuspension of riverbed sediment, increasing the proportion of swimmer groups (such as Baetidae) in the macroinvertebrate community. However, large resuspension of river bed sediment results in a reduced abundance of macroinvertebrates. By controlling the transport processes of dissolved oxygen (DO), dissolved organic carbon (DOC), nutrients, temperature, and different patterns of hyporheic exchange strongly influence the structure of macroinvertebrate communities. Downwelling is more likely to produce rich invertebrate communities than upwelling. The magnitude for the hyporheic flux of 150–200 mm/d was optimal for the macroinvertebrate community in the Weihe River Basin. Above or below this rate results in a decline in community abundance and diversity. We suggest that research is conducted to better understand the effects of hyporheic exchange across bedforms on macroinvertebrate communities. The study supports any activities to preserve the ecological functions and health of rivers dominated by fine-grained sediments.

scholarly journals Contamination Level, Distribution Characteristics, and Ecotoxicity of Tetrabromobisphenol A in Water and Sediment from Weihe River Basin, China

2020 ◽  
Vol 17 (11) ◽  
pp. 3750
Author(s):  
Xueli Wang ◽  
Chenyang Li ◽  
Xiaoyu Yuan ◽  
Shengke Yang
Keyword(s):  
River Basin ◽  
Water Samples ◽  
Mean Value ◽  
Tetrabromobisphenol A ◽  
Pollution Level ◽  
Long Distance ◽  
Water And Sediment ◽  
Local Point ◽  
Weihe River ◽  
Weihe River Basin

Tetrabromobisphenol A (TBBPA) is a brominated flame retardant, which is widely present in the various environmental and biological media. The knowledge on the contamination of TBBPA in Weihe River Basin is still limited. In order to know the pollution level and distribution of tetrabromobisphenol A (TBBPA) in the Weihe River Basin, a total of 34 sediment samples and 36 water samples were collected from the main stream and tributaries of the WeiHe River Basin, and the concentration of TBBPA in the samples was analyzed by high-performance liquid chromatography–electrospray ionization–mass spectrometry (HPLC-ESI-MS). The detection frequency of TBBPA in sediments and water samples was 61.8% and 27.8%, respectively; the TBBPA concentrations in sediments and water samples were in the range of not detected (N.D.)–3.889 ng/g (mean value of 0.283 ng/g) and N.D—12.279 ng/L (mean value of 0.937 ng/L), respectively. Compared with other areas in China, the residues of TBBPA in the Weihe River Basin were at a relatively low level. The spatial distributions of TBBPA in surface sediments and water indicated that the local point-input was their major source. This is related to the proximity of some sampling sites to industrial areas and domestic sewage discharge areas. The insignificant correlation between TBBPA and total organic carbon (TOC) indicated that TBBPA in sediments is not only influenced by TOC but also affected by atmosphere and land input, wet deposition, and long-distance transmission. The potential risks posed by TBBPA in water and sediment were characterized using the risk quotient (RQ) method. The calculated RQ for TBBPA was less than 0.01, showing that the ecological risk due to TBBPA was quite low for aquatic organisms.

scholarly journals Research on the Smart Information System of Weihe River Basin

2019 ◽  
Vol 234 ◽  
pp. 012006
Author(s):  
Siyu Yang ◽  
Rengui Jiang ◽  
Jiancang Xie ◽  
Dongfei Yan ◽  
Jichao Liang ◽  
...  
Keyword(s):  
Information System ◽  
River Basin ◽  
Weihe River ◽  
Weihe River Basin
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