A comprehensive framework for assessing the spatiotemporal impact of land use and cover change on lake eutrophication DOI Creative Commons
Yi Lin, Daiqi Zhong,

Yu Rong

и другие.

International Journal of Applied Earth Observation and Geoinformation, Год журнала: 2024, Номер 131, С. 103989 - 103989

Опубликована: Июнь 25, 2024

Excessive nitrogen and phosphorus (N/P) input is the important reason for lake eutrophication, a widespread environmental problem that harms freshwater ecosystems worldwide. Land use land cover changes (LULCCs) strongly affect migration transformation process on of N/P. Aiming to improve accuracy N/P estimation deeply understand spatiotemporal impact LULCCs distribution, this study proposed an optimized framework, InVEST-UM, by integrating unmixing algorithm with conventional InVEST model. A comprehensive intuitive index LPI (LULCCs purification capacity index) developed assessment spatialization. Validation shows strong correlation (0.94) between eutrophication degree Dianshan Lake. This suggests effectively captures influence eutrophication. Based sub-pixel results estimation, dramatic average rate 46.182% were explored. There positive (0.91) vegetation area Conversely, negative relationships are found bare lands (−0.86), artificial surfaces (−0.75). Changes in water bodies have weak (−0.33) capacity. The increase can not only enhance capacity, but also help maintain low ecological sensitivity. By employing provides valuable insights into long-term dynamics their implications ecosystems, could support protection planning sustainability balance lake.

Язык: Английский

ESTIMATATION OF THE L-Q EQUATIONS FOR EACH SEA AREA IN THE SETO INLAND SEA DOI

Chihiro KASHIMA,

Yusuke NAKATANI,

Hironori HIGASHI

и другие.

Japanese Journal of JSCE, Год журнала: 2025, Номер 81(16), С. n/a - n/a

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0
Study on vertical variation characteristics of soil phosphorus adsorption and desorption in black soil region of Northeast China DOI Creative Commons
Wenzhi Zhao, Xu Xie, Tian He

и другие.

PLoS ONE, Год журнала: 2024, Номер 19(6), С. e0306145 - e0306145

Опубликована: Июнь 24, 2024

The adsorption and desorption of phosphorus (P) in soil constitute a crucial internal cycle that is closely associated with fertility, exerting direct influence on the quantity, form, availability P within soil. vertical spatial variation characteristics were investigated for 0–100 cm layer northeast black region this study. maximum capacity (Q max ) buffer (MBC) study area ranged from 313.8 to 411.9 mg kg -1 3.1 28.8 L , respectively, depth, exhibiting an increasing trend greater depth. degree saturation (DPS) exhibited contrasting variations Q MBC, ranging 3.8% 21.6%. (D rate r 112.8 215.7 32.1% 52.5%, while readily desorbable (RDP) was range 1.02 3.35 . Both D RDP decreasing depth before showing upward trend. These research findings not only provide essential background data systematic investigation but also serve as valuable reference assessing quality area.

Язык: Английский

Процитировано

3
A comprehensive framework for assessing the spatiotemporal impact of land use and cover change on lake eutrophication DOI Creative Commons
Yi Lin, Daiqi Zhong,

Yu Rong

и другие.

International Journal of Applied Earth Observation and Geoinformation, Год журнала: 2024, Номер 131, С. 103989 - 103989

Опубликована: Июнь 25, 2024

Excessive nitrogen and phosphorus (N/P) input is the important reason for lake eutrophication, a widespread environmental problem that harms freshwater ecosystems worldwide. Land use land cover changes (LULCCs) strongly affect migration transformation process on of N/P. Aiming to improve accuracy N/P estimation deeply understand spatiotemporal impact LULCCs distribution, this study proposed an optimized framework, InVEST-UM, by integrating unmixing algorithm with conventional InVEST model. A comprehensive intuitive index LPI (LULCCs purification capacity index) developed assessment spatialization. Validation shows strong correlation (0.94) between eutrophication degree Dianshan Lake. This suggests effectively captures influence eutrophication. Based sub-pixel results estimation, dramatic average rate 46.182% were explored. There positive (0.91) vegetation area Conversely, negative relationships are found bare lands (−0.86), artificial surfaces (−0.75). Changes in water bodies have weak (−0.33) capacity. The increase can not only enhance capacity, but also help maintain low ecological sensitivity. By employing provides valuable insights into long-term dynamics their implications ecosystems, could support protection planning sustainability balance lake.

Язык: Английский

Процитировано

1