Spatiotemporal patterns of urban forest carbon sequestration capacity: Implications for urban CO2 emission mitigation during China's rapid urbanization

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 912, P. 168781 - 168781

Published: Nov. 24, 2023

Language: Английский

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Chilean Mediterranean forest on the verge of collapse? Evidence from a comprehensive risk analysis

The Science of The Total Environment, Journal Year: 2025, Volume and Issue: 964, P. 178557 - 178557

Published: Jan. 20, 2025

Language: Английский

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The global distribution and drivers of wood density and their impact on forest carbon stocks

Nature Ecology & Evolution, Journal Year: 2024, Volume and Issue: 8(12), P. 2195 - 2212

Published: Oct. 15, 2024

Abstract The density of wood is a key indicator the carbon investment strategies trees, impacting productivity and storage. Despite its importance, global variation in environmental controls remain poorly understood, preventing accurate predictions forest stocks. Here we analyse information from 1.1 million inventory plots alongside data 10,703 tree species to create spatially explicit understanding distribution drivers. Our findings reveal pronounced latitudinal gradient, with tropical forests being up 30% denser than that boreal forests. In both angiosperms gymnosperms, hydrothermal conditions represented by annual mean temperature soil moisture emerged as primary factors influencing globally. This indicates similar filters evolutionary adaptations among distinct plant groups, underscoring essential role abiotic determining ecosystems. Additionally, our study highlights prominent disturbance, such human modification fire risk, at more local scales. Factoring spatial notably changes estimates stocks, leading differences 21% within biomes. Therefore, research contributes deeper terrestrial biomass how disturbances impact

Language: Английский

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Tree community structure, carbon stocks and regeneration status of disturbed lowland tropical rain forests of Assam, India

Trees Forests and People, Journal Year: 2023, Volume and Issue: 11, P. 100371 - 100371

Published: Jan. 5, 2023

Tropical rain forests are global hotspots of biodiversity and key climate change regulators. Despite the decades conservation efforts, tropical increasingly under continuous threat from human activities. Therefore, understanding impact anthropogenic disturbances on is necessary for better management. This study focused a rainforest located in Kakoi reserve, Assam, northeastern Himalayas, aiming to compare tree species composition, diversity, carbon stocks, regenerating status two forest sites experiencing disturbance regimes. A total 55 representing 36 genera 26 families were recorded area. The richness was slightly higher moderately disturbed (MD) Dirgha than highly (HD) Kakoi-Rajgarh forest. Tree density basal area 582 446 individuals ha−1, 38.43, 32.63 m2 respectively, MD-Dirgha HD-Kakoi-Rajgarh. Forest stand structure followed typical reverse J-shaped trend both sites, with lesser large girth-class (>330 cm girth at breast height) HD-Kakoi-Rajgarh, reflecting influence past onsite disturbances. analysis regeneration strata depicted that seedling sapling 1.8 1.4 times lower HD-Kakoi-Rajgarh compared MD-Dirgha. Above-ground biomass stocks maximum MD-Dirgha, by About 63.64% species, including Critically Endangered Vatica lanceifolia IUCN Red List Categories, thus stressing need conservation. Our findings suggest conserving diversity reserves would principally depend minimizing loss degradation.

Language: Английский

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Drivers of tree demographic processes in forest fragments of the Brazilian Atlantic forest

Forest Ecology and Management, Journal Year: 2023, Volume and Issue: 534, P. 120893 - 120893

Published: March 1, 2023

Language: Английский

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Ecological restoration programs reduced forest fragmentation by stimulating forest expansion

Ecological Indicators, Journal Year: 2023, Volume and Issue: 154, P. 110855 - 110855

Published: Aug. 24, 2023

Deforestation has led to substantial loss of natural forests worldwide, resulting in forest fragmentation, soil erosion, biodiversity loss, and carbon loss. In response the Sustainable Development Goals (SDGs) by 2030, particularly Global Forest Goals, China implemented a series large-scale ecological restoration programs. context coexisting effectiveness long-term programs optimizing fragmentation remains uncertain. Within framework programs, we investigate dynamics analyze spatial processes expansion assess impact on core edge Panzhihua City using landscape metrics Morphological Spatial Pattern Analysis. At statistical scale, rise AI CONTAG indices, along with decline SHDI index, signifies reduction fragmentation. Additionally, findings Analysis (MSPA) at scale corroborate this trend. These results demonstrate that reduced primarily driven expansion. We discovered decreased thanks three management practices: (1) expanding edges (sprawl); (2) converting farmland forest's forestland (corridor or sprawl); (3) closing perforations within (infill). pattern level, enhanced area (567.36 km2) declined (44.28 from 1992 2020. Integrating MSPA analysis indices enhances our understanding region. Considering complexity when analyzing holds significant importance for formulating improvement strategies. Moreover, these emphasize necessity considering process while effective measures mitigate minimize negative effects forests.

Language: Английский

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Functional Diversity Explains Ecosystem Carbon Storage in Subtropical Forests

Global Change Biology, Journal Year: 2025, Volume and Issue: 31(3)

Published: March 1, 2025

ABSTRACT Carbon storage in subtropical forests results from multiple interacting factors, including biodiversity attributes—such as species diversity, functional traits, and stand structural diversity—and environmental conditions like climate, topography, soil characteristics. Biodiversity typically influences forest carbon through two primary mechanisms: niche complementarity (complementary utilization of resources among species) selection effects (dominance with specific traits). However, the relative importance these mechanisms involving under varying remains unclear. This study assessed diversity attributes within tree, shrub, herb layers across three types: coniferous, coniferous/broad‐leaved mixed, broad‐leaved forests. We quantified aboveground, belowground, total examined relationships between storage, impact factors on relationships. Our findings showed that were more conducive to creating storage. In forests, belowground carbon, a major component was most affected by followed diversity. Functional strongly exerted aboveground stocks, trait composition factors. Environmental directly also indirectly influenced it plant attributes. Notably, layer exhibited significant linear correlation indicate contribute fixation, being predominant. Based findings, we recommend afforestation policies prioritize enhancing tree improve sequestration, evergreen represent zonal climax vegetation, while acknowledging understory vegetation. Thus, context global climate change, is imperative thoroughly evaluate sequestration ecosystems.

Language: Английский

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China’s naturally regenerated forests currently have greater aboveground carbon accumulation rates than newly planted forests

Communications Earth & Environment, Journal Year: 2025, Volume and Issue: 6(1)

Published: May 5, 2025

Language: Английский

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Global Tiger Density Linked With Forest Carbon Stock, Top‐Down and Bottom‐Up

Global Change Biology, Journal Year: 2025, Volume and Issue: 31(5)

Published: May 1, 2025

ABSTRACT Tiger ( Panthera tigris ) survival, as apex predators in forest ecosystems, largely depends on abundant prey healthy, intact forests. Because large herbivore are drivers of plant biomass, we reasoned that tiger distribution and density probably also closely linked with carbon (C) stock, the management which is critical for mitigating climate change. However, whether tigers exert top‐down control C stocks or passive surrogate indicators bottom‐up a salient unanswered question conservation management, particularly trophic rewilding. Here, compiled estimates global presence to test effects tiger‐carbon relationships along gradient from “empty forests” without “target state” ecosystems living at different abundances. Our results showed was associated higher vegetation stocks, lower emissions, inputs globally. Top‐down via ungulate biomass were stronger less established Furthermore, soil increased reached peaks four habitat types covering most range. findings reveal tigers, represented by their density, both an indicator driver ecosystem depending underlying ecological conditions, could safeguard forests against future emissions improve our understanding climate‐C cycle feedback.

Language: Английский

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Forest management practices change topsoil carbon pools and their stability

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 902, P. 166093 - 166093

Published: Aug. 6, 2023

Language: Английский

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