EFFECT OF WETLAND ECOLOGICAL RESTORATION PROJECT ON MACROBENTHOS COMMUNITY IN THE YELLOW RIVER DELTA

ZHANG Hanxu; LI Xinyu; CUI Baoshan; WANG Qing; YU Hailing; WU Xia; XU Jiamei

doi:10.13205/j.hjgc.202301027

Volume 41 Issue 1

Jan. 2023

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2023 > 41(1): 222-231

ZHANG Hanxu, LI Xinyu, CUI Baoshan, WANG Qing, YU Hailing, WU Xia, XU Jiamei. EFFECT OF WETLAND ECOLOGICAL RESTORATION PROJECT ON MACROBENTHOS COMMUNITY IN THE YELLOW RIVER DELTA[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(1): 222-231. doi: 10.13205/j.hjgc.202301027

Citation:

ZHANG Hanxu, LI Xinyu, CUI Baoshan, WANG Qing, YU Hailing, WU Xia, XU Jiamei. EFFECT OF WETLAND ECOLOGICAL RESTORATION PROJECT ON MACROBENTHOS COMMUNITY IN THE YELLOW RIVER DELTA[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(1): 222-231. doi: 10.13205/j.hjgc.202301027

Citation:

ZHANG Hanxu, LI Xinyu, CUI Baoshan, WANG Qing, YU Hailing, WU Xia, XU Jiamei. EFFECT OF WETLAND ECOLOGICAL RESTORATION PROJECT ON MACROBENTHOS COMMUNITY IN THE YELLOW RIVER DELTA[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(1): 222-231. doi: 10.13205/j.hjgc.202301027

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EFFECT OF WETLAND ECOLOGICAL RESTORATION PROJECT ON MACROBENTHOS COMMUNITY IN THE YELLOW RIVER DELTA

doi: 10.13205/j.hjgc.202301027

1. State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China;
[JP]

Received Date: 2022-10-08
Available Online: 2023-03-23

Abstract

Abstract

To explore the impact of the Yellow River Delta restoration project on the macrobenthos community and the key impact factors, in 2019, 2020 and 2021, six sampling batches of macrobenthos and soil/sediment samples were conducted in the restoration area and unrecovered area of the Yellow River Delta International Important Wetland Biodiversity Conservation Project. In the survey, 78 species of macrobenthos were found, belonging to 4 phyla, 8 classes and 61 families. The results showed that the dominance of Insecta was increasing with time, while the dominance of molluscs and annelids with strong pollution resistance was decreasing. In the comparison of the two growth seasons in May 2020 and June 2021, it was found that the density of Insecta species showed an upward trend in the south bank area against the background of the decline of the overall density of benthos. The change in dominant species and species density indicated that the ecological restoration project had improved the environmental conditions of the restoration area. At the initial stage of the completion of the ecological restoration project, the living environment and community structure of macrobenthos were seriously disturbed by the project construction, and it took time to restore biodiversity. The analysis of environmental factors showed that the macrobenthos community had a positive correlation with salinity and total carbon content of soil/sediment, indicating the impact of estuarine environmental factors on distribution of benthos. This study contrastively analyzed the characteristics and change process of benthos communities in the ecological restoration area and natural wetlands in the Yellow River Delta, provided important data and support for the implementation effect evaluation of the Yellow River Delta Estuary Wetland Restoration Project, and provided guidance and reference for the implementation and management of the subsequent wetland restoration project.
- the Yellow River Delta,
- ecological restoration,
- macrobenthos,
- community structure,
- bio-diversity,
- environmental factor

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References(40)

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