Projecting the global potential distribution of nine Rhododendron Subgenus Hymenanthes species under different climate change scenarios

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

Published: Jan. 27, 2025

As one of China's most treasured traditional flowers, Rhododendron Subgen. Hymenanthes is renowned worldwide for its evergreen foliage, vibrant and significant ornamental, landscaping, economic value. However, climate change poses a serious threat to future, leading population declines endangerment some species. Despite the ecological importance Hymenanthes, future distribution suitable habitats effective strategies conservation utilization remain unclear. This study employs MaxEnt model, which well-known reliability in predicting species under changing environmental conditions, predict potential global nine Hymenanthes. The goal provide solid foundation their conservation, cultivation management, breeding. results indicate that, scenarios, habitat areas four (R. irroratum, R. agastum, decorum, arboreum) will significantly decrease, while remaining five delavayi, fortunei, calophytum, simiarum, wardii) experience slight expansion. Temperature precipitation are identified as key factors influencing growth these species, affecting ability colonize new regions. migration direction expanding regions all consistent, with centroids shifting towards northwest. These findings critical insights developing targeted strategies, including identifying refugia prioritizing conditions.

Language: Английский

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जलवायु परिवर्तन और भूगोल: पैटर्न और प्रभावों का विश्लेषण

International Journal of Innovations in Science Engineering and Management., Journal Year: 2025, Volume and Issue: unknown, P. 75 - 88

Published: Jan. 18, 2025

जीवाश्म ईंधन दहन और वनों की कटाई जैसी मानवीय गतिविधियों से प्रेरित जलवायु परिवर्तन ने ऊष्मा-अवशोषित गैसों सांद्रता में उल्लेखनीय वृद्धि है, जिससे वैश्विक तापमान हुई है। जबकि पेरिस समझौते (COP 21) पहलों का लक्ष्य 2100 तक को 1.5°C सीमित करना वर्तमान उत्सर्जन प्रवृत्तियाँ 3-4°C संभावित संकेत देती हैं, यहां कि पार्टियों के सम्मेलन (COP) 26 हालिया संकल्पों बावजूद भी 2050 शुद्ध शून्य कार्बन रखा गया क्षेत्रीय मॉडल कृषि, खाद्य सुरक्षा आजीविका पर गहरा प्रभाव डालते हुए बढ़ी गर्मी, कम वर्षा महत्वपूर्ण प्रकट करते हैं। गर्मी होने वाली परेशानी श्वसन संबंधी समस्याएँ प्रमुख जलवायु-प्रेरित चुनौतियों रूप उभर रही पानी दवा सामग्री वाले संदूषक, हालाँकि मानव स्वास्थ्य लिए खतरनाक नहीं लेकिन पर्यावरण चिंताओं उजागर करने, जैव विविधता रक्षा करने क्षेत्रों विभिन्न प्रभावों संबोधित सतत विकास कल्याण सुनिश्चित तत्काल, उन्नत शमन रणनीतियों आवश्यकता

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Global Warming Drives Shifts in the Suitable Habitats of Subalpine Shrublands in the Hengduan Mountains Region in China

Forests, Journal Year: 2025, Volume and Issue: 16(4), P. 624 - 624

Published: April 2, 2025

Subalpine shrubland is an important vegetation type in the Hengduan Mountains region of China, and its distribution has been substantially influenced by global warming. In this research, four subalpine shrub communities were selected: Rhododendron heliolepis Franch. scrub, flavidum Quercus monimotricha (Hand.-Mazz.) Hand.-Mazz. Pinus yunnanensis var. pygmaea (Hsueh ex C. Y. Cheng, W. Cheng & L. K. Fu) Hsueh scrub. A MaxEnt model was used to assess suitable habitats their primary drivers shrublands China under different climate scenarios. Our results indicate following: (1) The habitat areas exhibit a predominant within region, with small populations Himalayas Wumeng Mountain. Temperature precipitation are identified as influencing shrublands, temperature factor more influential than factor. Furthermore, contribution rate slope scrub 19.2%, which cannot be disregarded. (2) Under future scenarios, total show expanding trend. However, highly three (Rhododendron scrub) contracting trend high-carbon-emission scenario (SSP585). (3) Driven warming, shift toward higher elevations northwest, while varies carbon emission much smaller range other scrubs. study contributes valuable insights into spatiotemporal dynamics change, providing scientific guidance for biodiversity conservation ecosystem restoration.

Language: Английский

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Habitat suitability modelling and range change dynamics of Bergenia stracheyi under projected climate change scenarios

Frontiers in Ecology and Evolution, Journal Year: 2025, Volume and Issue: 13

Published: April 22, 2025

Prioritizing native and endemic species for conservation is fundamental to achieve broader objectives of safeguarding biodiversity, as these are vulnerable extinction risks. Forecasting the climatic niche through distribution models can be crucial their habitat sustainable management in future. In this study, an ensemble modelling approach was used predict Bergenia stracheyi , a alpine plant Himalayan region. The results revealed that B . primarily influenced by Annual Mean Temperature (Bio1) Precipitation (Bio12). Ensemble model predictions under current conditions, suitable habitats distributed across higher elevations Jammu Kashmir future indicate that, all scenarios, majority currently will remain species. predicts significant expansion B. particularly more severe climate change scenarios (RCP8.5). However, some areas identified suitable, including parts Pir Panjal range Mirpur (Pakistan), projected become unsuitable These shifts may have far-reaching consequences ecosystem functioning stability services provided human communities. Additionally, lead mismatches between phenological events pollinators potentially causing ecological disruptions. Thus, predicted highlight importance local measures mitigate impacts change.

Language: Английский

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Hydrogeochemical Insights into the Sustainable Prospects of Groundwater Resources in an Alpine Irrigation Area on Tibetan Plateau

Sustainability, Journal Year: 2024, Volume and Issue: 16(21), P. 9229 - 9229

Published: Oct. 24, 2024

The Tibetan Plateau is the “Asia Water Tower” and pivotal for Asia whole world. Groundwater essential sustainable development in its alpine regions, yet chemical quality increasingly limits usability. present research examines hydrochemical characteristics origins of phreatic groundwater irrigation areas. study probes signatures, quality, regulatory mechanisms a representative area Plateau. findings indicate that maintains slightly alkaline fresh status, with pH values ranging from 7.07 to 8.06 Total Dissolved Solids (TDS) between 300.25 638.38 mg/L. composition mainly HCO3-Ca type, minority HCO3-Na·Ca types, closely mirroring profile river water. Nitrogen contaminants, including NO3−, NO2−, NH4+, exhibit considerable concentration fluctuations within aquifer. Approximately 9.09% sampled groundwaters exceed NO2− threshold 0.02 mg/L, 28.57% surpass NH4+ limit 0.2 mg/L potable water standards. All are below permissible NO3− (50 mg/L). Phreatic exhibits relatively good potability, as assessed by entropy-weighted index (EWQI), 95.24% having an EWQI value 100. However, potential health risks associated elevated levels, rather than merit attention when such consumed minors at certain sporadic sampling locations. does not sodium hazards or soil permeability damage, salinity require attention. makeup primarily dictated rock–water interactions, silicate weathering cation exchange reactions, occasional influences dissolution evaporites carbonates, well reverse cation-exchange processes. While agricultural activities have caused notable rise salinity, they main contributors nitrogen pollution area’s groundwater. Agricultural-derived pollutants vigilant monitoring avert extensive deterioration ensure management resources

Language: Английский

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Climate-change impacts on distribution, habitats, sustainability and cultivation planning of two economically and ecologically important forest trees (China fir and Masson pine) in China

Global Ecology and Conservation, Journal Year: 2024, Volume and Issue: 57, P. e03349 - e03349

Published: Dec. 11, 2024

Language: Английский

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The interactive effects of shrub and aridity affect co-occurrence network complexity and stability of soil bacterial communities on the Qinghai–Tibet Plateau

CATENA, Journal Year: 2024, Volume and Issue: 249, P. 108634 - 108634

Published: Dec. 9, 2024

Language: Английский

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Populations, conservation status and distribution modelling of the rare and narrow endemic Rhododendron frey-wysslingii (Ericaceae)

Journal for Nature Conservation, Journal Year: 2024, Volume and Issue: 83, P. 126762 - 126762

Published: Nov. 15, 2024

Language: Английский

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Ecological niche and phenotypic differences among two alpine Rhododendron species and their natural hybrids in a common landscape

Global Ecology and Conservation, Journal Year: 2024, Volume and Issue: unknown, P. e03382 - e03382

Published: Dec. 1, 2024

Language: Английский

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