Review on strategies of close-to-natural wetland restoration and a brief case plan for a typical wetland in northern China

Cai, Yajing; Liang, Jinsong; Zhang, Panyue; Wang, Qingyan; Wu, Yan; Ding, Yiran; Wang, Hongjie; Fu, Chuan; Sun, Jiajun

doi:10.1016/j.chemosphere.2021.131534

Cited by 47 publications

(16 citation statements)

References 147 publications

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“…The biogenic elements of the Yellow River Delta were mainly from the Bohai Sea, which had a high organic carbon content (Wang et al, 2018a). In this study, we found that the ecological restoration in both banks promoted the stability of the biogenic elements, which was probably due to environmental homogenization by replenishing freshwater and growing plants in the North Restoration and South Restoration (Yang et al, 2020;Cai et al, 2021). Additionally, due to the short observation period, ecological restoration did not alter the trends of soil SOC, TN, TP, and TS in the Yellow River Delta.…”

Section: Potential Mechanism Of the Changes In Biogenic Elements And ...mentioning

confidence: 64%

Effects of ecological restoration on soil biogenic elements and their ecological stoichiometry in the Yellow River Delta, China

Li²,

Xie³

et al. 2022

Front. Mar. Sci.

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Coastal wetlands serve as sources and sinks of carbon, nitrogen, phosphorus, and sulfur, and their ecological stoichiometry intuitively indicates the biogeochemical cycle process of the region. This study investigated the changing trend of the contents of soil organic carbon (i.e., SOC), total nitrogen (i.e., TN), total phosphorus (i.e., TP), and total sulfur (i.e., TS) and their ecological stoichiometric ratios in 2019-2021 in the Yellow River Delta (including north and south banks) under the Internationally Important Wetland Biodiversity Conservation Project by conducting field surveys and experiments. The results showed that SOC, TN, and TP showed the highest content in the North Unrestoration, while the TS content appeared highest in the North Restoration. In addition, ecological restoration improved the biogenic element stability in both banks and improved the stability of ecological stoichiometry on the north bank while decreasing the ecological stoichiometry stability on the south bank. Notably, the changing trend of soil C/S in the North Unrestoration exhibited a considerably different profile similarity from the North Restoration, which indicates that the ecological restoration changed the wetland ecosystem from the perspective of soil C/S. Furthermore, the high content of soil biogenic elements SOC and high ratio of soil ecological stoichiometry C/N and C/S in the Yellow River Delta induce that they are more sensitive to environmental change. Over the three years, the contributions of soil moisture content, soil salinity, and pH to soil biogenic element contents and their stoichiometric ratios were 32.20%, 49.30%, and 18.50% on the north bank, respectively, and 85.70%, 8.50%, and 5.80% on the south bank, respectively. This study implies that ecological restoration generally has a positive effect on the soil biogenic element contents and their ecological stoichiometry in the Yellow River Delta and provides a reference for delta restoration.

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Section: Potential Mechanism Of the Changes In Biogenic Elements And ...mentioning

confidence: 64%

Effects of ecological restoration on soil biogenic elements and their ecological stoichiometry in the Yellow River Delta, China

Li²,

Xie³

et al. 2022

Front. Mar. Sci.

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“…This provides important implications for several environmental management tools related to the protection and management of the coastal and marine environment. These tools may include adaptive management and stewardship in coastal zones [43], environmental impact assessment [82], climate change mitigation [83], the restoration and rehabilitation of ecosystems [84], coastal spatial planning [85] and habitat sensitivity mapping for the coastal and marine environment [86].…”

Section: Dredging and Reclamation Managementmentioning

confidence: 99%

Community Structures of Benthic Macrofauna in Reclaimed and Natural Intertidal Areas in Bahrain, Arabian Gulf

Naser¹

2022

JMSE

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Costal reclamation has been carried out extensively along the coastlines of the Arabian Gulf during the last decades. As a small archipelago country, coastal reclamation continues to be a major option for securing land to meet the needs of the expanding population and economic development in Bahrain. Macrobenthic communities often reflect the integrity of ecosystems as they respond to natural and anthropogenic stressors. This study characterized the community structures of macrobenthic invertebrates in three reclaimed intertidal areas and a protected natural mudflat in Bahrain (August 2019 and December 2020). Macrobenthic community structures and sediment characteristics differed significantly between natural and reclaimed areas. A total of 43 species were recorded in the four study areas, of which 38 were collected from the natural mudflat. Polychaetes dominated macrobenthic communities, followed by molluscs and crustaceans. Polychaetes accounted for more than 90% of the communities in the reclaimed coastal areas. Macrobenthic monitoring is considered essential for detecting changes in coastal and marine ecosystems due to dredging and reclamation activities along the coastlines of the Arabian Gulf. The findings of this study can provide insights into the ecological dynamics of macrobenthic communities in reclaimed coastal areas for environmental monitoring and coastal planning and management in the Arabian Gulf.

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“…Vegetation change in floodplain wetlands is affected by many man-made and natural factors, such as water supply, rainfall, and runoff [34][35][36]. The environment in the study site of the lower Hailar River is complex and diverse with a variety of ecosystems, such as swampy wetlands, river meadows, scrub, and forest.…”

Section: Vegetation Change Process and Its Influencesmentioning

confidence: 99%

Digital Examination of Vegetation Changes in River Floodplain Wetlands Based on Remote Sensing Images: A Case Study Based on the Downstream Section of Hailar River

Dong

Chen

2021

Forests

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The Hailar River is an important river in the Inner Mongolia Autonomous Region, China. It plays an extremely important role in maintaining the ecological balance of the region. However, in recent decades, the Hailar River and its surrounding areas have been developed at a high rate and its wetland resources have faced various threats. In this study, vegetation changes in the Hailar River wetlands were analyzed using remote sensing data from the Landsat TM (1987, 2001, and 2010) and Landsat OLI-TIRS (2019) satellites. A vegetation change model was developed using Matlab software to assess vegetation changes in the area. There were significant changes in the wetland vegetation of the lower Hailar River study site between 1987 and 2019. There was an increase in open sand habitat with a sparse vegetation area of 1.08 km2, a decrease in grassland area of 13.17 km2, and an increase in the forest area of 15.91 km2. The spatial distribution of the normalized difference vegetation index (NDVI) varied across the study site and was high overall. The vegetation types varied with distance from the river. There are two possible explanations for positive and negative vegetation change trends. In areas where the water supply is sufficient and relatively stable, the cover of forest vegetation was gradually increasing and the herbaceous plant community is gradually evolving into a scrub woodland plant community. In areas where the water supply is lacking, there are changes in the sense of a decrease of forest vegetation and an increase of open sand habitat with sparse vegetation. Therefore, this study suggests that the existing wetlands should be protected, used wisely, and developed rationally to provide sustainable resources for the next generation.

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Review on strategies of close-to-natural wetland restoration and a brief case plan for a typical wetland in northern China

Cited by 47 publications

References 147 publications

Effects of ecological restoration on soil biogenic elements and their ecological stoichiometry in the Yellow River Delta, China

Effects of ecological restoration on soil biogenic elements and their ecological stoichiometry in the Yellow River Delta, China

Community Structures of Benthic Macrofauna in Reclaimed and Natural Intertidal Areas in Bahrain, Arabian Gulf

Digital Examination of Vegetation Changes in River Floodplain Wetlands Based on Remote Sensing Images: A Case Study Based on the Downstream Section of Hailar River

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