scholarly journals Variations in the Runoff-Sediment Relationship of the Weihe River Basin Based on the Copula Function

Water ◽  
2016 ◽  
Vol 8 (6) ◽  
pp. 223 ◽  
Author(s):  
Aijun Guo ◽  
Jianxia Chang ◽  
Yimin Wang ◽  
Qiang Huang
Keyword(s):  
River Basin ◽  
Copula Function ◽  
Weihe River ◽  
Runoff Sediment ◽  
Relationship Of ◽  
Weihe River Basin

Distribution, assessment and coupling relationship of heavy metals and macroinvertebrates in sediments of the Weihe River Basin

2019 ◽  
Vol 50 ◽  
pp. 101665 ◽  
Author(s):  
Xinxin Wang ◽  
Ping Su ◽  
Qidong Lin ◽  
Jinxi Song ◽  
Haotian Sun ◽  
...  
Keyword(s):  
Heavy Metals ◽  
River Basin ◽  
Coupling Relationship ◽  
Weihe River ◽  
Relationship Of ◽  
Weihe River Basin

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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