Contrasting growth responses in Himalayan trees to future climate DOI Creative Commons
Rupesh Dhyani, Pablo Casas-Gómez, Lea Schneider

и другие.

The Science of The Total Environment, Год журнала: 2025, Номер 986, С. 179700 - 179700

Опубликована: Май 30, 2025

Rising temperatures and shifting regional precipitation patterns are exerting significant impact on tree growth in the Himalayan region. Despite growing concern about global warming, regional- species-specific responses to future climate scenarios remain poorly quantified across two contrasting regimes (Eastern-monsoon vs Western-westerly) of Himalaya. We analyzed 3370 time series tree-ring width data 14 dominant species Himalaya occurring between 1750 4100 m elevation covering a large longitudinal monsoon-related environmental gradient. With Linear Mixed Models (LMMs), we predicted Basal Area Increment (BAI) trends for different temperature changes under four representative concertation pathways (RCP 2.6, 4.5, 6.0 8.5). Results show patterns: Eastern region, such as Cedrus deodara Pinus roxburghii projected decline by 23-67 % BAI end 21th century all due warming-induced moisture stress. Conversely, Western like Picea smithiana wallichiana shows gain up 100 likely enhanced winter spring from westerlies. Likely increased forest carbon sequestration selected region highlights importance spatially targeted informed management. Our results evidence need conservation strategies while adaptive management should be considered maintain resilience sustainability face warming.

Язык: Английский

Geospatial assessment of treeline shifting in response to climate change in Langtang National Park, Central Nepal DOI Creative Commons
Sijar Bhatta,

Chandani KC,

Raju Chauhan

и другие.

Environmental Challenges, Год журнала: 2025, Номер unknown, С. 101155 - 101155

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0
Global Warming Regulates the Contraction and Expansion of the Adaptive Distribution of Cupressus funebris Forests in China DOI Open Access
Huayong Zhang,

Shijia Li,

Xiande Ji

и другие.

Forests, Год журнала: 2025, Номер 16(5), С. 778 - 778

Опубликована: Май 5, 2025

Cupressus funebris forests grow relatively fast and have a strong natural regeneration ability, showing great potential in carbon sequestration. Global warming has already had significant impact on its distribution pattern. This study used the Maximum Entropy Model (MaxEnt) data of communities to explore contraction expansion adaptive funebris. The research results are as follows: contemporary area is mainly located southern region China, accounts for approximately 7.15% total land area. main driving variables affecting annual precipitation, minimum temperature coldest month, isothermality, seasonality, carbonate content, altitude. Among them, climate plays dominant role this community. Under different emission scenarios future, areas show an trend, but most highly shrinking changes significant. In high pathway, continues expand north while gradually contracting regions. community shows trend migrating higher latitudes altitudes northern regions, there non-linear characteristics altitude migration under scenario intensified emissions. provides theoretical guidance protection management helps improve sequestration capacity context neutrality.

Язык: Английский

Процитировано

0
Oak Forests in Arunachal Pradesh Vs Western Himalayas of India: Ecological Importance, Biodiversity, and Climate Change Impacts DOI Open Access

Yasmin Singh,

L. S. Lodhiyal, K. S. Kanwal

и другие.

Current Agriculture Research Journal, Год журнала: 2025, Номер 13(1), С. 62 - 72

Опубликована: Апрель 30, 2025

Oak forests in the Himalayan regions, particularly Arunachal Pradesh and Western Himalayas, represent ecologically significant landscapes that harbor a wealth of biodiversity sustain variety ecosystem services essential for environmental stability human well-being. These forests, dominated by key oak species such as Quercus griffithii, serrata, lanata, leucotrichophora, play crucial role maintaining ecological balance supporting diverse flora fauna, stabilizing soil, regulating hydrological cycles, acting carbon sinks. This literature review synthesizes current knowledge on functions significance oak-dominated forest ecosystems these regions. It assesses their contributions to sequestration, soil conservation, water resource regulation, with particular emphasis resilience adaptive capacity under changing conditions. The also delves into impacts climate change, including alterations temperature precipitation patterns, which have led observable shifts composition, structure, overall health. Such changes pose risks long-term they provide. In light challenges, further evaluates effectiveness existing conservation management strategies aimed at preserving ecosystems. includes community-based practices, afforestation efforts, protected area networks, adaptation policies. synthesis underscores urgent need integrated, science-based approaches incorporate traditional knowledge, promote enhance landscape. present aims compare Himalayas respect characteristics, vulnerability change. rationale this comparison is highlight region-specific differences inform appropriate across Eastern landscapes.

Язык: Английский

Процитировано

0
Climate Change and Topography Drive the Expansion of Betula ermanii in the Alpine Treeline Ecotone of the Changbai Mountain DOI Creative Commons
Yingyi Chen,

Yongfeng Gu,

Wen J. Wang

и другие.

Ecology and Evolution, Год журнала: 2025, Номер 15(5)

Опубликована: Май 1, 2025

ABSTRACT Alpine treelines ecotones are critical ecological transition zones and highly sensitive to global warming. However, the impact of climate on distribution treeline trees is not yet fully understood as this may also be affected by other factors. Here, we used high‐resolution satellite images with climatic topographic variables study changes in tree alpine ecotone Changbai Mountain for years 2002, 2010, 2017, 2021. This employed Geodetector method analyze how interactions between factors influence expansion Betula ermanii different aspect slopes. Over past 20 years, B. , only species tundra zone, had its highest rate from 2017 2021 across all studied, approaching 2.38% per year. In 2021, reached uppermost elevations 2224 m western aspects 2223 northern aspects, which predominant it occupies. We observed a notable increase steeper slopes (> 15°) 2002 Moreover, found that played more significant role 's than any single dominant factor. Our results suggest interaction wetness index coldest month precipitation (Pre 1 ), contributing 91% variability, primarily drove southern maintaining soil moisture, providing snowpack thermal insulation enhanced temperatures, decomposition, nutrient release harsh conditions. On aspect, elevation mean temperature warmest explained 80% expansion. Meanwhile, Pre growing season 73% aspect. revealed driving upward movement vary mountain aspects. Climate topography play roles determining ecotone. knowledge helps better understand forecast dynamics response change.

Язык: Английский

Процитировано

0
The underestimated role of understory vegetation dynamics for forest ecosystem resilience: a review DOI

Haritika,

A. K. Negi

Plant Ecology, Год журнала: 2025, Номер unknown

Опубликована: Май 27, 2025

Язык: Английский

Процитировано

0
Contrasting growth responses in Himalayan trees to future climate DOI Creative Commons
Rupesh Dhyani, Pablo Casas-Gómez, Lea Schneider

и другие.

The Science of The Total Environment, Год журнала: 2025, Номер 986, С. 179700 - 179700

Опубликована: Май 30, 2025

Rising temperatures and shifting regional precipitation patterns are exerting significant impact on tree growth in the Himalayan region. Despite growing concern about global warming, regional- species-specific responses to future climate scenarios remain poorly quantified across two contrasting regimes (Eastern-monsoon vs Western-westerly) of Himalaya. We analyzed 3370 time series tree-ring width data 14 dominant species Himalaya occurring between 1750 4100 m elevation covering a large longitudinal monsoon-related environmental gradient. With Linear Mixed Models (LMMs), we predicted Basal Area Increment (BAI) trends for different temperature changes under four representative concertation pathways (RCP 2.6, 4.5, 6.0 8.5). Results show patterns: Eastern region, such as Cedrus deodara Pinus roxburghii projected decline by 23-67 % BAI end 21th century all due warming-induced moisture stress. Conversely, Western like Picea smithiana wallichiana shows gain up 100 likely enhanced winter spring from westerlies. Likely increased forest carbon sequestration selected region highlights importance spatially targeted informed management. Our results evidence need conservation strategies while adaptive management should be considered maintain resilience sustainability face warming.

Язык: Английский

Процитировано

0