Diversity-productivity relationships are dependent upon location and ecotypes of the dominant species growing across a precipitation gradient DOI Creative Commons
David J. Gibson, David F. Barfknecht, Sara G. Baer

и другие.

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Дек. 12, 2024

Abstract Locally dominant and highly productive species affect diversity through competitive interactions with subordinate species. Across environmental gradients the competitiveness of varies, relationship between productivity is commonly concave-down unimodal, referred to as ‘humped-back model’ (HBM). The effect local adaptation in their resulting on occurrence diversity-productivity relationships unknown. A reciprocal transplant experiment established across a precipitation gradient US Great Plains was used investigate intraspecific variation prairie grasses assembled communities. Taxonomic exhibiting HBM occurred 47% tests, most frequently communities locally-sourced (compared distantly sourced) species, reflecting adaptation, but only at extreme wet end gradient. retained experimental reduction growing season using rainout shelters site reduced taxonomic increased. Phylogenetic functional trait evolutionary-relevant exhibited 33% 31% respectively. However, patterns phylogenetic were less related or source than diversity. influenced by especially where exhibit adaptation. Thus, grasslands restored ecotypes foundation can have consequences for community processes effects

Язык: Английский

Rural depopulation has reshaped the plant diversity distribution pattern in China DOI
Qing Luo,

Cuiwei Zhao,

Guangjie Luo

и другие.

Resources Conservation and Recycling, Год журнала: 2024, Номер 215, С. 108054 - 108054

Опубликована: Дек. 12, 2024

Язык: Английский

Процитировано

17
Water limitation as a driver of species richness decline in global grasslands under nutrient addition DOI
Hailing Li, Josep Peñuelas, Scott L. Collins

и другие.

Plant and Soil, Год журнала: 2025, Номер unknown

Опубликована: Фев. 3, 2025

Язык: Английский

Процитировано

1
Water limitation drives species loss in grassland communities after nitrogen addition and warming DOI
Hailing Li, Juan Chen, Josep Peñuelas

и другие.

Proceedings of the Royal Society B Biological Sciences, Год журнала: 2024, Номер 291(2031)

Опубликована: Сен. 1, 2024

Nutrient addition, particularly nitrogen, often increases plant aboveground biomass but causes species loss. Asymmetric competition for light is frequently assumed to explain the biomass-driven However, it remains unclear whether other factors such as water can also play a role. Increased leaf area following nitrogen addition and warming may increase transpiration cause limitation, leading decline in diversity. To test this, we conducted field measurements grassland community exposed warming. We found that and/or significantly increased reduced richness. Water prevented loss either nitrogen-enriched or warmed treatments, while partially mitigated treatment both temperature nitrogen. These findings thus strongly suggest limitation be an important driver of after when soil moisture limiting. This result further supported by meta-analysis published studies across grasslands worldwide. Our study indicates richness future greatest under scenario increasing deposition, decreasing precipitation.

Язык: Английский

Процитировано

5
An Exploration of Plant Biomass–Species Richness Relationships in Three Subalpine Grasslands on the Qinghai–Tibetan Plateau DOI
Mingrui Liu,

Shiting Liu,

Hui Li

и другие.

Journal of Vegetation Science, Год журнала: 2025, Номер 36(1)

Опубликована: Янв. 1, 2025

ABSTRACT Aims Multiple studies have addressed the relationship between plant biomass and species richness, often reporting a hump‐shaped curve. However, such research in natural grassland was mostly conducted temperate, arid semiarid areas, with few focused on subalpine regions. Moreover, most cases, community main variable of interest, considering also individual biomass, calculated by dividing abundance. Location To explore richness regions, field survey three locations fenced grasslands Qinghai–Tibetan Plateau China 2020 2023. Methods Plant aboveground were recorded along four transects each location. Analyses performed using both to test whether different measure affected biomass–species relationship. Results Year × significantly biomass. Curve estimations demonstrated positive nonlinear negative richness. These patterns modified grasslands. Competition can explain some Conclusions In general, choice approach grasslands, which indicates that abundance impacts Future should consider further modulators drivers when exploring climate change context.

Язык: Английский

Процитировано

0
Green sanctuaries: residential green and garden space and the natural environment mitigate mental disorders risk of diabetic patients DOI Creative Commons
Erxu Xue, Jianhui Zhao, Jingyu Ye

и другие.

BMC Medicine, Год журнала: 2025, Номер 23(1)

Опубликована: Янв. 21, 2025

Abstract Background The co-occurrence of diabetes and mental disorders is an exceedingly common comorbidity with poor prognosis. We aim to investigate the impact green space, garden natural environment on risk among population living diabetes. Methods performed a longitudinal analysis based 39,397 participants from UK Biobank. Residential space modeled land use data Land Cover Map were assigned residential address for each participant. Cox proportional hazards model was used analyze associations between nature exposures Casual mediation quantify indirect effect air pollution. Results During mean follow-up 7.55 years, 4513 incident cases identified, including 2952 depressive 1209 anxiety disorders. Participants at 300 m buffer in second third tertiles had 7% (HR = 0.93, 95%CI: 0.86–0.99) 12% 0.88, 0.82–0.94) lower risks compared those first tertile, respectively. incidence patients will decrease by 13% when exposed tertile buffer. individually prevented 6.65% 10.18% incidents patients. statistically decreased 1000 0.84, 95% CI: 0.78–0.90). Protective effects three against also observed. Air pollution, particularly nitrogen dioxide, oxides, fine particulate matter, significantly contributed disorders, mediating 48.3%, 29.2%, 62.4% associations, Conclusions could mitigate patients, pollution playing vital mediator. This highlights potential local governments enhance sustainability such interventions, grounded public health urban planning, through strategic planning initiatives. Graphical

Язык: Английский

Процитировано

0
Climate change was more important than human activity in late Holocene vegetation change on the southern Tibetan Plateau DOI
Hao Li, Deke Xu, Yong Ge

и другие.

Quaternary Science Reviews, Год журнала: 2025, Номер 354, С. 109245 - 109245

Опубликована: Фев. 12, 2025

Язык: Английский

Процитировано

0
Influence of hydrology and soil on short and tall herbaceous communities in a Yangtze River-connected floodplain wetland DOI

Lianlian Xi,

Ji‐Pu Shi,

Jiacheng Wang

и другие.

CATENA, Год журнала: 2025, Номер 254, С. 108982 - 108982

Опубликована: Апрель 7, 2025

Язык: Английский

Процитировано

0
Reduced groundwater depth decreases plant diversity but increases plant aboveground biomass allocation in a brackish wetland DOI

Yangjian He,

Mingliang Zhao,

Lianjing Wang

и другие.

Plant and Soil, Год журнала: 2025, Номер unknown

Опубликована: Апрель 28, 2025

Язык: Английский

Процитировано

0
Spatial and Temporal Dynamics in Vegetation Greenness and Its Response to Climate Change in the Tarim River Basin, China DOI Creative Commons
Kai Jin,

Yansong Jin,

Cuijin Li

и другие.

ISPRS International Journal of Geo-Information, Год журнала: 2024, Номер 13(9), С. 304 - 304

Опубликована: Авг. 26, 2024

Vegetation in ecologically sensitive regions has experienced significant alterations due to global climate change. The underlying mechanisms remain somewhat obscure owing the spatial heterogeneity of influencing factors, particularly Tarim River Basin (TRB) China. Therefore, this study targets TRB, analyzing and temporal dynamics vegetation greenness its climatic determinants across multiple scales. Utilizing Normalized Difference Index (NDVI) data, trends over past 23 years were assessed, with future projections based on Hurst exponent. Partial correlation linear regression analyses employed correlate NDVI temperature (TMP), precipitation (PRE), potential evapotranspiration (PET), elucidating NDVI’s response variations. Results revealed that from 2000 2022, 90.1% TRB exhibited an increase NDVI, a overall trend 0.032/decade (p < 0.01). difference change sub-basins types highlighted disparity greening. Notable greening predominantly occurred near rivers at lower elevations extensive cropland areas, indicating continued some regions. Conversely, mainly suggested shift towards browning, higher-elevation areas minimal human influence. From gradual TMP, PRE, PET. latter two factors significantly correlated their substantial role However, sensitivity varied sub-basins, types, elevations, likely differences plant characteristics, hydrothermal conditions, disturbances. Despite 51.5% impact accounted for only 25% total trend. These findings enhance understanding ecosystems arid provide scientific basis developing ecological protection strategies TRB.

Язык: Английский

Процитировано

1
Soil water regulates plant diversity response to gradual and step nitrogen addition DOI

Jiu-Ying Pei,

Yang Zheng,

Yan Yu

и другие.

Plant and Soil, Год журнала: 2024, Номер unknown

Опубликована: Сен. 18, 2024

Язык: Английский

Процитировано

1