Coupling process of carbon sink service flow based on metacoupling framework

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Feb. 24, 2025

Carbon sink service (CSS) is crucial in addressing global warming and provides theoretical support for research on human‒system coupling. CSS generation, flow, utilization the composite ecosystem of mountains, rivers, forests, farmlands, lakes, grasslands (CEMRFFLG) sustainable development. Quantifying coupled supply‒flow‒demand processes mechanisms CEMRFFLG remains a pressing issue study carbon flows (CSSFs). First, quantify supply demand situation Chongqing. Second, coupling process CSSF among water, forest, farmland, grassland subsystems explored via breakpoint model combined with metacoupling framework. Finally, multiscenario simulation was performed to reveal its flow mechanism. The results show that: (1) Net primary productivity (NPP) mainly comes from emissions (CEs) come farmland. (2) During telecoupling, forest subsystem has highest total value outflow inflow plots, accounting 35.51% 61.24% total, respectively. (3) moves areas human activities. This paper proposes optimization suggestions essential achieving complex ecosystem's

Language: Английский

Multi-Scenario Simulating the Effects of Land Use Change on Ecosystem Health for Rural Ecological Management in the Zheng–Bian–Luo Rural Area, Central China

Land, Journal Year: 2024, Volume and Issue: 13(11), P. 1788 - 1788

Published: Oct. 30, 2024

A healthy rural ecosystem ensures a win–win situation for both economic growth and ecological conservation. However, the impact of land use changes at level on health remains unclear. This study focuses scale Zheng–Bian–Luo, analyzing in from 2000 to 2020. Using “Ecosystem Vigor-Organization-Resilience-Services” model, evaluates spatiotemporal patterns health. The Patch-generating Land Use Simulation (PLUS) model was employed simulate 2035 under three scenarios: Natural Development (ND), Ecological Protection (EP), Cropland (CP). findings are as follows: (1) From 2020, area cultivated Zheng–Bian–Luo areas decreased, forest first decreased then increased. (2) During period, improved vigor, organization, services Low-value showed shrinking trend, most notably Kaifeng. (3) By 2035, EP scenario, increased by 76.794 km2, while it CP ND scenarios. Construction an increasing trend all scenarios, with scenario seeing largest increase 718.007 km2. (4) In is projected decline due reduced construction land. no significant change health, but southwestern Luoyang improved. saw overall highlighting optimization beneficial. Local governments encouraged create protection plans balancing protection, focusing sensitive such Songshan region mountainous coordinated development.

Language: Английский

Land Use Change and Its Impact on the Quality of the Ecological Environment in Xinjiang

Sustainability, Journal Year: 2024, Volume and Issue: 16(22), P. 10114 - 10114

Published: Nov. 20, 2024

Xinjiang is a key area for implementing the Belt and Road Initiative, as well an ecological security barrier in Northwest China. In this study, remote sensing index (RSEI) was constructed on basis of Google Earth Engine (GEE) platform combined with multiperiod (MODIS) imagery to analyze land use changes their impacts environmental quality from 2000 2023. The results are follows. (1) areas concentrated mainly oasis around mountain ranges Tarim Basin. (2) overall environment showed insignificant linear decreasing trend, annual rate change −0.0009 a−1 (p > 0.05). (3) spatial distribution RSEI revealed significant positive correlation clustering pattern, which high west low east. (4) increase cultivated had effect improving Xinjiang. When increased by 10%, improvement 8.8%.

Language: Английский