Effects of precipitation changes on fractional vegetation cover in the Jinghe River basin from 1998 to 2019

Ecological Informatics, Journal Year: 2024, Volume and Issue: 80, P. 102505 - 102505

Published: Jan. 30, 2024

Studying the spatiotemporal evolutionary characteristics of vegetation and effect precipitation changes is necessary for understanding regional ecological environment. We used trend analysis, partial correlation significance tests, residual analysis to analyze evolution driving factors fractional cover (FVC) in Jinghe River Basin (JRB) from 1998 2019. The results showed that coverage JRB significantly improved FVC an increasing 90.64% areas JRB, overall annual change was extremely significant (p ≤ 0.01). However, insignificant trend; distribution developed a uniform direction centroid tended move backward. area with between concentration index accounted largest proportion (18.47%). Precipitation generally favored recovery; however, limited non-precipitation dominated FVC. Our study contributes more comprehensive effects patterns on facilitate protection.

Language: Английский

Synergistic impact of climate and land use land cover change dynamics on the hydrological regime of Loktak Lake catchment under CMIP6 scenarios

Journal of Hydrology Regional Studies, Journal Year: 2024, Volume and Issue: 53, P. 101851 - 101851

Published: June 1, 2024

Study region: Loktak Lake catchment, north-eastern Himalayan ranges, India focus: Assessing the potential synergistic impact of land use cover (LULC) and climate change on water resources is crucial for watershed management especially in data-scarce vulnerable wetlands. Using SWAT hydrological model, current study seeks to quantify combined impacts LULC balance parameters catchment. This simulates regime catchment based future changes dynamics using four GCM models combination with under two alternative scenarios. New insights The findings showed that SSP 126 585 scenarios, annual mean temperature anticipated increase by a maximum 1.7°C 3.74°C, respectively, 2050 s 2090 s, while precipitation similarly shown rising trend both scenarios mid far future. streamflow projected 48.84 cumecs (31.65 %) 57 (36.89 decades, yield will rise 200.65 mm (30.25 216.1 (32.57 comparable decades. outcomes this might provide scientific foundation ecological protection as well resource development response risk due

Language: Английский

Impacts and Prediction of Land Use/Cover Change on Runoff in the Jinghe River Basin, China

Land, Journal Year: 2025, Volume and Issue: 14(3), P. 626 - 626

Published: March 16, 2025

The Jinghe River flows through the gully area of Loess Plateau, where soil erosion is relatively severe. With intensification human activities, quantitatively evaluating impact land use/cover change (LUCC) on runoff paramount importance. This study based Soil and Water Assessment Tool (SWAT) Patch-generating Land Use Simulation (PLUS) models, analyzes effect LUCC in Basin (JRB) use data from 2000 to 2020 predicted scenarios for 2030 that encourage development, farmland protection, ecological protection. results show reductions farmland, grassland, forest areas promote runoff, while increases construction similarly contribute greater runoff. In all scenarios, JRB dominated by grassland. mean annual under three simulated prediction shows an increasing trend compared 2020, distribution depth roughly same. addition, there a strong interconnection between types their dynamic relationship. Within scenario, decrease land, along with growth grassland plays suppressive role can offer scientific foundation improving as well optimizing patterns JRB.

Language: Английский