Assessment of eco-environment quality using multi-source remote sensing data DOI Creative Commons
Yuanfan Zheng, Linxuan Zhao, Wenpeng Lin

et al.

International Journal of Sustainable Development & World Ecology, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 17

Published: Oct. 28, 2024

Accurate analysis of regional eco-environment quality (EEQ) changes is essential for urban sustainability. Most the widely used EEQ indicators ignore impact air pollution caused by urbanization and economic growth. This study proposed a remote sensing-based approach using time-series comprehensive evaluation index (CEI), which was developed PM2.5 concentration, Land surface temperature (LST), vegetation coverage (VC) to assess in Demonstration Zone Green Integrated Ecological Development The Yangtze River Delta (demonstration zone) from 2000 2020. all districts townships were classified into five levels. results suggested that 2020, CEI significantly decreased (p < 0.01) demonstration zone, indicating an overall improvement EEQ. Differences mean annual values found among wnships. Higher values, indicated lower degree areas where build-up land comprised higher percentage total area. Townships with degraded change exhibited increase (32.3%) than others (8.67% 16.68%) Moreover, at administrative district scale be strongly correlated proportion secondary sector GDP three districts. our importance use optimization, reduction, enhancement improve wetland ecosystems rapid urbanization.

Language: Английский

Reconstructing ice phenology of a lake with complex surface cover: a case study of Lake Ulansu during 1941–2023 DOI Creative Commons
Puzhen Huo, Peng Lü, Bin Cheng

et al.

˜The œcryosphere, Journal Year: 2025, Volume and Issue: 19(2), P. 849 - 868

Published: Feb. 25, 2025

Abstract. Lake ice phenology plays a critical role in determining the hydrological and biogeochemical dynamics of catchments regional climates. Lakes with complex shorelines abundant aquatic vegetation are challenging for retrieving lake via remote sensing data, primarily because mixed pixels containing plants, land, ice. To address this challenge, new double-threshold moving t-test (DMTT) algorithm, which uses Scanning Multichannel Microwave Radiometer (SMMR) Special Sensor Microwave/Imager–Special Imager/Sounder (SSM/I–SSMIS) sensor-derived brightness temperature data at 3.125 km resolution long-term ERA5 was applied to capture Ulansu from 1979 2023. Compared previous DMTT algorithm employs air time series assist abrupt change points two distinct thresholds calculate freeze-up start (FUS) break-up end (BUE) dates. This method effectively improved detection information pixels. Furthermore, we extended Ulansu's back 1941 random forest (RF) model. The reconstructed 2023 indicated that had average FUS BUE dates 15 ± 5 November 25 6 March, respectively, an cover duration (ICD) 130 8 d. Over last 4 decades, ICD has shortened by 22 Air primary impact factor, accounting 56.5 % 67.3 variations dates, respectively. We reconstructed, first time, longest over large shallow surface cover. argue can be retrieve other similar lakes, not been fully explored worldwide.

Language: Английский

Citations

0
Lake pollution control and restoration: A critical review of strategies and measures for plateau lakes in Southwestern China DOI
Shengjiong Deng,

Lingjuan Tao,

Yang Li

et al.

Ecological Engineering, Journal Year: 2025, Volume and Issue: 215, P. 107583 - 107583

Published: March 4, 2025

Language: Английский

Citations

0
Ecological restoration reduces greenhouse gas emissions by altering planktonic and sedimentary microbial communities in a shallow eutrophic lake DOI

Songbing He,

Xue Guo, Mengying Zhao

et al.

Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 121400 - 121400

Published: March 1, 2025

Language: Английский

Citations

0
How Do Different Growth Forms of Winter Submerged Macrophytes Species Respond to Underwater Light Quality in a Mesocosm Study? DOI Creative Commons

Xiaowen Lin,

Xiaodong Wu,

Xuguang Ge

et al.

Ecology and Evolution, Journal Year: 2024, Volume and Issue: 14(10)

Published: Oct. 1, 2024

ABSTRACT Underwater light is a key factor that affects the growth of submerged macrophytes. However, responses different forms macrophytes to quality remain unclear. The morphological, physiological, photosynthetic, and stoichiometric erect Potamogeton crispus ( P. ) low‐canopy Elodea nuttallii E. six qualities (white light, R/B = 1:8, 1: 4, 1:1, 4:1, 8:1) were studied by control experiment. (1) No significant differences observed in germination number, leaf length, width under p > 0.05). Both produced greater plant heights, more leaves branches red (4:1, 8:1), which was beneficial for extension leaves. Under white number , adventitious roots branch lowest. (2) Compared blue (1:4, 1:8) conducive synthesis photosynthetic pigments. excessive not accumulation result malondialdehyde showed physiological stress induced stronger. (3) N:P, C:N, C:P ratios higher nutrients two macrophy; however, contents TN TP light. Two grew better adapted eutrophic water dominated aquatic restoration, other need be supplemented after improved.

Language: Английский

Citations

1
Assessment of eco-environment quality using multi-source remote sensing data DOI Creative Commons
Yuanfan Zheng, Linxuan Zhao, Wenpeng Lin

et al.

International Journal of Sustainable Development & World Ecology, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 17

Published: Oct. 28, 2024

Accurate analysis of regional eco-environment quality (EEQ) changes is essential for urban sustainability. Most the widely used EEQ indicators ignore impact air pollution caused by urbanization and economic growth. This study proposed a remote sensing-based approach using time-series comprehensive evaluation index (CEI), which was developed PM2.5 concentration, Land surface temperature (LST), vegetation coverage (VC) to assess in Demonstration Zone Green Integrated Ecological Development The Yangtze River Delta (demonstration zone) from 2000 2020. all districts townships were classified into five levels. results suggested that 2020, CEI significantly decreased (p < 0.01) demonstration zone, indicating an overall improvement EEQ. Differences mean annual values found among wnships. Higher values, indicated lower degree areas where build-up land comprised higher percentage total area. Townships with degraded change exhibited increase (32.3%) than others (8.67% 16.68%) Moreover, at administrative district scale be strongly correlated proportion secondary sector GDP three districts. our importance use optimization, reduction, enhancement improve wetland ecosystems rapid urbanization.

Language: Английский

Citations

0