Soil Respiration Characteristics and Karst Carbon Sink Potential in Woodlands and Grasslands

Forests, Год журнала: 2025, Номер 16(3), С. 424 - 424

Опубликована: Фев. 26, 2025

The weathering of carbonate rocks consumes significant amounts soil CO2, contributing to both direct source reduction and the enhancement carbon sinks. This process holds substantial potential as a sink, making it critical strategy for achieving neutrality mitigating climate change. However, control mechanisms reverse assessment karst sinks, with CO2 core at input end karstification, are unclear. By comparing respiration its δ13C values between non-karst regions, we analyzed impact karstification on respiration. In this study, examined grassland (KG), woodland (KW), (NKW) in region identical conditions research subject, analyzing differences rate (RS), flux (SRF), isotope under different land-use types, them reveal sink reducing emissions. results showed that after change from KG KW region, annual mean RS SRF increased by 55.50% 20.94%, respectively. Additionally, contribution were approximately 8.2% higher than those KW. contrast, 25.14% 41.80% lower NKW, Furthermore, participation was about 8.9% NKW. Land use can significantly influence exhibiting highest capacity. Karst soils play crucial role atmospheric levels facilitating regional neutralization. Therefore, systems pivotal “land term” (source term, ELUC) global balance.

Язык: Английский

Vapor pressure deficit dominates vegetation productivity during compound drought and heatwave events in China's arid and semi-arid regions: Evidence from multiple vegetation parameters

Ecological Informatics, Год журнала: 2025, Номер unknown, С. 103144 - 103144

Опубликована: Апрель 1, 2025

Язык: Английский

A driving force analysis method for drought-flood abrupt alternation events

Ecological Informatics, Год журнала: 2025, Номер unknown, С. 103214 - 103214

Опубликована: Май 1, 2025

Язык: Английский