Distribution of ecological restoration projects associated with land use and land cover change in China and their ecological impacts

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 825, P. 153938 - 153938

Published: Feb. 17, 2022

Language: Английский

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Land use and river-lake connectivity: Biodiversity determinants of lake ecosystems

Environmental Science and Ecotechnology, Journal Year: 2024, Volume and Issue: 21, P. 100434 - 100434

Published: May 28, 2024

Lake ecosystems confront escalating challenges to their stability and resilience, most intuitively leading biodiversity loss, necessitating effective preservation strategies safeguard aquatic environments. However, the complexity of ecological processes governing lake under multi-stressor interactions remains an ongoing concern, primarily due insufficient long-term bioindicator data, particularly concerning macroinvertebrate biodiversity. Here we utilize a unique, continuous, in situ biomonitoring dataset spanning from 2011 2019 investigate spatio-temporal variation communities. We assess impact four crucial environmental parameters on Dongting Taihu, i.e., water quality, hydrology, climate change, land use. These two systems are representative lakes with Yangtze-connected disconnected subtropical floodplains China. find alarming trend declining taxonomic functional diversities among communities despite improvements quality. Primary contributing factors this decline include persistent anthropogenic pressures, alterations human use around lakes, including intensified nutrient loads reduced habitat heterogeneity. Notably, river-lake connectivity is pivotal shaping differential responses multiple stressors. Our results highlight strong correlation between within 2–5 km radius 0.05–2.5 shorelines Lakes respectively. findings importance implementing buffer zones specific spatial scales enhance diversity, securing essential ecosystem services enhancing resilience ecosystems.

Language: Английский

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Conflict between urbanization and water environmental protection: Lessons from the Xiangjiang River Basin in China

Water Research, Journal Year: 2024, Volume and Issue: 252, P. 121237 - 121237

Published: Jan. 30, 2024

Language: Английский

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Identifying Critical Land Use Thresholds for Biodiversity Conservation in China’s Lake Ecosystems

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 25, 2025

Aquatic biodiversity loss, particularly in rapidly developing nations, continues to raise concerns, prompting urgent debates on reconciling economic growth with environmental preservation through land use planning. While spatial variations aquatic communities along gradients are well-documented, precise ecological thresholds for impacts freshwater lakes remain elusive, hindering sustainable development efforts. This study investigated six representative China between 2019 and 2020, all significantly impacted by anthropogenic activities. We utilized macroinvertebrate as bioindicators employed four categories of metrics─taxonomic diversity, functional pollution tolerance, water quality─to assess their responses local patterns. Macroinvertebrate community composition varied among the studied lakes, pollution-tolerant taxa predominating highly urbanized eutrophic systems. Notably, benthic exhibited greater sensitivity urban (ecological thresholds: 2-10%) compared agricultural (thresholds: 15-40%). The most pronounced were observed within 1-5 km lakeshore, circular buffers yielding more significant effects than fan-shaped buffers, excluding areas. A novel intensity indicator─the ratio nonecological (NEL/EL = area land/area land)─proved effective predicting shifts. Smaller or heavily showed marked changes at NEL/EL ratios 0 0.6, while larger river-connected shifts exceeding 1.5. These findings underscore profound footprint human activities lake ecosystems cover emerging deleterious factor.

Language: Английский

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Coupling Coordination Relationship between Urbanization and Water Environment in China

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 472, P. 143423 - 143423

Published: Aug. 19, 2024

Language: Английский

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Reducing nutrient increases diatom biomass in a subtropical eutrophic lake, China–Do the ammonium concentration and nitrate to ammonium ratio play a role?

Water Research, Journal Year: 2022, Volume and Issue: 218, P. 118493 - 118493

Published: April 23, 2022

Language: Английский

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Multiple anthropogenic stressors influence the taxonomic and functional homogenization of macroinvertebrate communities on the mainstream of an urban-agricultural river in China

Journal of Environmental Management, Journal Year: 2023, Volume and Issue: 341, P. 118017 - 118017

Published: May 5, 2023

Language: Английский

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Intensified effect of nitrogen forms on dominant phytoplankton species succession by climate change

Water Research, Journal Year: 2024, Volume and Issue: 264, P. 122214 - 122214

Published: Aug. 3, 2024

Language: Английский

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Occurrence, sources, and risk assessment of pyrethroid insecticides in surface water and tap water from Taihu Lake, China

Journal of Environmental Management, Journal Year: 2022, Volume and Issue: 325, P. 116565 - 116565

Published: Oct. 22, 2022

Language: Английский

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Macroinvertebrate and environmental responses to dredging and submerged macrophytes transplantation

Journal of Applied Ecology, Journal Year: 2024, Volume and Issue: 61(5), P. 1041 - 1052

Published: March 10, 2024

Abstract Eutrophication of freshwater ecosystems is a global problem, but restoration can be difficult due to ongoing problems relating water pollution, sedimentary nutrient stores and altered aquatic biodiversity. Mitigation often conducted alongside transplantation submerged macrophytes dredging, knowledge ecosystem response post‐dredging limited. We report long‐term (2008–2018) in situ monitoring study evaluate the effects different measures: dredging only (Dredged) dredged with post‐transplantation (Dredged macrophytes) five subtropical eutrophic lakes, Taihu basin. Water sediment nutrients, bloom‐forming algae Microcystis macroinvertebrate were monitored every 2 years for each treatment compared reference areas (Control) established unrestored parts same lake. Dredging decreased nutrients (e.g. carbon, phosphorus) significantly; however, this effect diminished about 5 later. Dredged had stronger, longer lasting positive on quality than alone. Disturbance caused by (without transplantation) biomass , while shortly after did not contribute decreasing biomass. The was always similar Control over period our monitoring. A found abundance diversity: significantly higher richness 9 years' recovery. Macroinvertebrate nearly doubled Control, just restored levels. Synthesis applications : Our provides an field new findings benefits caution partial restoration, which could inform waterbody schemes.

Language: Английский

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