The Relationships Between Vegetation Changes and Groundwater Table Depths for Woody Plants in the Sangong River Basin, Northwest China

Remote Sensing, Год журнала: 2025, Номер 17(5), С. 937 - 937

Опубликована: Март 6, 2025

Woody plants serve as crucial ecological barriers surrounding oases in arid and semi-arid regions, playing a vital role maintaining the stability supporting sustainable development of oases. However, their sparse distribution makes significant challenges accurately mapping spatial extent using medium-resolution remote sensing imagery. In this study, we utilized high-resolution Gaofen (GF-2) Landsat 5/7/8 satellite images to quantify relationship between vegetation growth groundwater table depths (GTD) typical inland river basin from 1988 2021. Our findings are follows: (1) Based on D-LinkNet model, woody was extracted with an overall accuracy (OA) 96.06%. (2) Approximately 95.33% desert areas had fractional plant coverage (FWC) values less than 10%. (3) The difference cover proved be fine indicator for delineating range desert-oasis ecotone. (4) optimal GTD Haloxylon ammodendron Tamarix ramosissima determined 5.51 m 3.36 m, respectively. Understanding is essential effective conservation water resource management regions.

Язык: Английский

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Predicting the geographical distribution and niche characteristics of Cotoneaster multiflorus based on future climate change

Frontiers in Plant Science, Год журнала: 2024, Номер 15

Опубликована: Май 8, 2024

Arid and semi-arid regions are climate-sensitive areas, which account for about 40% of the world's land surface area. Future environment change will impact these area, resulting in a sharp expansion arid regions.

Язык: Английский

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Conservation planning for the endemic and endangered medicinal plants under the climate change and human disturbance: a case study of Gentiana manshurica in China

Frontiers in Plant Science, Год журнала: 2023, Номер 14

Опубликована: Июль 26, 2023

Human activities and climate change have significantly impacted the quantity sustainable utilization of medicinal plants. Gentiana manshurica Kitagawa, a high-quality original species Gentianae Radix et Rhizoma, has significant value. However, wild resources experienced sharp decline due to human excavation, habitat destruction, other factors. Consequently, it been classified as an Endangered (EN) on IUCN Red List is considered third-level national key-protected material in China. The effects G. are not yet known context severe negative impacts most species. In this study, optimized MaxEnt model was used predict current future potential distribution manshurica. addition, land use data 1980, 2000, 2020 were calculate quality by InVEST landscape fragmentation Fragstats model. Finally, using above-calculated results, priority protection areas tending planned ZONATION software. results show that suitable area mainly distributed central part Songnen Plain. Bio15, bio03, bio01, clay content environmental variables affecting distribution. general, expected increasing trend. become threatened carbon emission scenarios years increase gradually. At worst, high suitability disappear completely under SSP585-2090s. Combined with t-test, could be pressure from bio01. migration trends niche centroid inconsistent do all move higher latitudes different scenarios. Over past 40 years, declined yearly, natural gradually fragmented. Existing reserves protect only 9.52% manshurica's conservation area. To avoid extinction risk practicality we clarified hotspot counties gaps areas. These can provide essential reference decision basis for effectively protecting change.

Язык: Английский

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Impacts of climate change on climatically suitable regions of two invasive Erigeron weeds in China

Frontiers in Plant Science, Год журнала: 2023, Номер 14

Опубликована: Сен. 28, 2023

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Язык: Английский

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Analysis of the Distribution Pattern of Phenacoccus manihoti in China under Climate Change Based on the Biomod2 Model

Biology, Год журнала: 2024, Номер 13(7), С. 538 - 538

Опубликована: Июль 17, 2024

The changing global climate has significantly impacted the spread of plant pests. cassava mealybug (Phenacoccus manihoti) is among most dangerous quarantine pests affecting cassavas worldwide, causing substantial losses in agricultural production and food security across several regions. Although China currently free mealybug, its proximity to affected countries extensive trade with these regions necessitate a detailed understanding pest's distribution pattern dynamic ecological niche changes. Using Biomod2 model, we selected two historical scenarios future (SSP1-2.6 SSP5-8.5) investigate patterns, potential habitats, centers, niches mealybugs China. Key environmental variables influencing were identified, including bio4, bio8, bio12, bio18, bio19. habitat mainly located provinces southern In future, suitable projected expand slightly under influence change, maintaining overall trend, but center areas will shift northward. Dynamic prediction results indicate for further expansion; however, may be unequal dissimilar invaded areas. predictions could serve as valuable reference early warning systems management strategies control introduction mealybugs.

Язык: Английский

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Modeling the Potential Distribution of Aulonemia queko: Historical, Current, and Future Scenarios in Ecuador and Other Andean Countries

Diversity, Год журнала: 2025, Номер 17(3), С. 167 - 167

Опубликована: Фев. 26, 2025

Aulonemia queko Goudot (Poaceae, Bambusoideae) is a species of great cultural importance that has been used as non-timber forest product in Andean forests for centuries. Despite inhabiting montane vulnerable to deforestation, its distribution not thoroughly assessed conservation. This study analyzes potential at the regional scale (the four countries where it distributed) and locally (in greater detail within Ecuador), using presence records climatic land-use data. Maxent was identified best algorithm, achieving high values AUC, TSS, sensitivity, specificity. At level, A. estimated occupy approximately 264,540 km2, mostly Peru, with small areas Bolivia. In Ecuador, historical scenario showed widest distribution, while current–near-future (20–40–SSP126) presented more stable model. Temperature rainfall represented critical factors defining suitable habitats, highly sensitive seasonal moisture availability. Land-use changes have reduced habitats by than 35%, underscoring an intensified threat habitat loss these biodiversity-rich regions. However, projected climate pose even impact, significantly reducing distribution. Our findings highlight compelling effects both climate-change-driven human-driven change on future persistence emphasize urgent need targeted conservation strategies protect core habitats.

Язык: Английский

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Mapping Spatial Heterogeneity of Non-Structural Carbohydrates in Haloxylon ammodendron Using Remote Sensing in Extreme Desert Environments

Plant Stress, Год журнала: 2025, Номер unknown, С. 100790 - 100790

Опубликована: Март 1, 2025

Язык: Английский

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Impact of Climate Change on the Narrow Endemic Herb Psilopeganum sinense (Rutaceae) in China

Ecology and Evolution, Год журнала: 2025, Номер 15(3)

Опубликована: Фев. 28, 2025

ABSTRACT Psilopeganum sinense is a perennial herb endemic to the Three Gorges Reservoir Area (TGRA) of Yangtze River and its surrounding regions. This species crucial for ecological conservation regional socioeconomic development. Recent extreme weather events in TGRA have directly indirectly caused local losses numerous wild populations P. . Given severe survival crisis induced by climate change, it essential explore effects change on potential distribution Although there general awareness adverse various species, lack comprehensive studies focusing long‐term detailed climatic variables influencing In this study, we aimed use random forest (RF) algorithm analyze redistribution across several critical periods. The results indicated that main limiting present geographical were precipitation seasonality mean diurnal range. Currently, mainly distributed riparian zone areas, exhibiting relatively narrow niche habitat fragmentation pattern. Historically, distributions under past conditions intact more extensive than current area. During last interglacial period, broad highly suitable areas was observed eastern Sichuan Province, northern Chongqing, central Hubei continuous Future scenarios projected 32.84% decrease RCP4.5–2050s. corridors established habitats would fragment gradually separate. Some previously unsuitable could transform into potentially because change; however, these might exhibit fragmented discrete patterns. general, both shrinkage compress already limited space , leading some prematurely confront decisions pressures. Our not only provide scientific basis managing resources context but also serve as an important reference restoring populations.

Язык: Английский

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Modeling Habitat Suitability for Endangered Herb (Salvia leriifolia Benth) Using Innovative Hybrid Machine Learning Algorithms

Environmental and Sustainability Indicators, Год журнала: 2025, Номер unknown, С. 100694 - 100694

Опубликована: Апрель 1, 2025

Язык: Английский

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Spatial variability and climate response characteristics of chemical components of Tussilago farfara L.

Industrial Crops and Products, Год журнала: 2023, Номер 204, С. 117352 - 117352

Опубликована: Авг. 30, 2023

Язык: Английский

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