Resource utilization of decarbonized coal gasification slag in soil quality improvement: New insights into microbial community composition and environmental risk assessment

Ecotoxicology and Environmental Safety, Journal Year: 2025, Volume and Issue: 294, P. 118104 - 118104

Published: March 28, 2025

Language: Английский

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Pre-Season Precipitation and Temperature Have a Larger Influence on Vegetation Productivity than That of the Growing Season in the Agro-Pastoral Ecotone in Northern China

Agriculture, Journal Year: 2025, Volume and Issue: 15(2), P. 219 - 219

Published: Jan. 20, 2025

Climate change and human activities are reshaping the structure function of terrestrial ecosystems, particularly in vulnerable regions such as agro-pastoral ecotones. However, extent to which climate impacts vegetation growth these areas remains poorly understood, largely due modifying effects human-induced land cover changes on sensitivity climatic variations. This study utilizes satellite-derived indices, datasets, data investigate influence both ecotone northern China (APENC) from 2001 2022. The results reveal that productivity, indicated by kernel Normalized Difference Vegetation Index (kNDVI), varies depending type APENC. Moreover, ridge regression modeling shows pre-season conditions (i.e., precipitation temperature) have a stronger positive impact growing-season productivity than growing season temperature, while effect vapor pressure deficit (VPD) is negative. Notably, kNDVI exhibits significant (p < 0.05) 34.12% region negative VPD 38.80%. model explained 89.10% total variation (R2 = 0.891). These findings not only emphasize critical role historical contemporary shaping but also provide valuable insights into how adjust agricultural animal husbandry management strategies improve regional adaptation based information previous seasons fragile regions.

Language: Английский

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Comparative Carbon Allocation and Soil Carbon Storage in Three Revegetated Shrublands in the Mu Us Desert

Forests, Journal Year: 2025, Volume and Issue: 16(4), P. 586 - 586

Published: March 27, 2025

Revegetation in arid and semi-arid regions is a pivotal strategy for mitigating desertification controlling soil erosion by enhancing carbon storage woody biomass wind-induced erosion. Despite its recognized importance, critical gap remains understanding how distributed across different plant compartments (leaves, stems, litter, roots) this distribution influences dynamics. In study, we examined allocation between aboveground (shoot litterfall) belowground (coarse fine components, as well the composition vertical of three 20-year-old shrub plantations—Salix psammophila, Corethrodendron fruticosum, Artemisia desertorum—in northwest China. Total litter were highest S. psammophila plantation (3689.29 g m−2), followed C. fruticosum (1462.83 m−2) A. desertorum (761.61 m−2). contrast, at 1 m depth was greatest (12,831.18 (7349.24 (5375.80 Notably, also exhibited proportions stable organic (heavy-fraction) inorganic carbon, while had lowest. Across all plantations, light-fraction displayed distinct distributions, heavy-fraction did not show significant spatial patterns. A strong correlation found fractions microbial nitrogen, suggesting that communities key drivers stabilization turnover. These findings underscore importance composition, root traits, activity determining accumulation following revegetation. The study highlights need to investigate species-specific mechanisms, such rhizodeposition dynamics necromass stabilization, elucidate redistribution pathways ecosystems.

Language: Английский

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Exploring the response of net ecosystem CO2 exchange to precipitation events in a wet meadow ecosystem by using an improved semi-empirical physical model

Journal of Hydrology, Journal Year: 2025, Volume and Issue: unknown, P. 133398 - 133398

Published: April 1, 2025

Language: Английский

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