Results 221 to 230 of about 2,808 (262)

Thresholds of aridity

Science, 2020
Dryland Ecology Increasing aridity due to climate change is expected to affect multiple ecosystem structural and functional attributes in global drylands, which cover ∼45% of the terrestrial globe. Berdugo et al. show that increasing aridity promotes thresholds on the structure and functioning of drylands (see the Perspective by Hirota and Oliveira ...
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Management thresholds stemming from altered fire dynamics in present-day arid and semi-arid environments

Journal of Environmental Management, 2018
Changes in fire frequency, size, and severity are driving ecological transformations in many systems. In arid and semi-arid regions that are adapted to fire, long-term fire exclusion by managers leads to declines in fire frequency, altered fire size distribution, and increased proportion of high severity fires.
Clare E, Aslan, Leah, Samberg, Brett G, Dickson, Miranda E, Gray   +3 more
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Quantifying Threshold Water Tables for Ecological Restoration in Arid Northwestern China

Groundwater, 2019
Abstract In arid northwestern China, as many inland areas around the world with arid or semi‐arid climate, inland river flow recharges groundwater; vegetation pattern depends on the water table, which characterizes the landscapes of oasis, transition zone and desert, within different distances from an inland river.
Yong, Wang, Minjian, Chen, Long, Yan, Guiyu, Yang, Jing, Ma, Wei, Deng   +5 more
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Appropriate THI model and its threshold for goats in semi-arid regions of India

Journal of Thermal Biology, 2021
The present study was attempted to identify an appropriate THI model and threshold THI for goats of semi-arid regions of India. Sixty non-pregnant goats each from Jamunapari and Barbari breeds were selected for the study. The study was conducted from last week of February to first week of June, during which average THI ranged between 53 and 92.
A, Srivastava, P, Yadav, A, Mahajan, M, Anand, S, Yadav, A K, Madan, B, Yadav   +6 more
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A threshold in soil formation at Earth’s arid–hyperarid transition

Geochimica et Cosmochimica Acta, 2006
The soils of the Atacama Desert in northern Chile have long been known to contain large quantities of unusual salts, yet the processes that form these soils are not yet fully understood. We examined the morphology and geochemistry of soils on post-Miocene fans and stream terraces along a south-to-north (27° to 24° S) rainfall transect that spans the ...
Stephanie A. Ewing, Brad Sutter, Justine Owen, Kunihiko Nishiizumi, Warren Sharp, Steven S. Cliff, Kevin Perry, William Dietrich, Christopher P. McKay, Ronald Amundson   +9 more
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Driving effects of aridity on three dimensions of belowground components in grasslands change at aridity threshold

2023
The belowground component of the grassland has abrupt changes with increasing aridity. However, the effects and driving pathways of aridification on different dimensions of the belowground component (such as specific root length, belowground biomass and soil organic carbon) before and after the aridity threshold have not been fully elucidated.
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Aridity thresholds of microbiome-soil function relationship along a climatic aridity gradient in alpine ecosystem

Soil Biology and Biochemistry
Peer ...
Lu Zhang, Lirong Liao, Feike A. Dijkstra, Xiangtao Wang, Manuel Delgado-Baquerizo, Guobin Liu, Guoliang Wang, Zilin Song, Jie Gu, Chao Zhang   +9 more
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Aridity threshold for alpine soil nitrogen isotope signature and ecosystem nitrogen cycling

Global Change Biology
AbstractDetermination of tipping points in nitrogen (N) isotope (δ15N) natural abundance, especially soil δ15N, with increasing aridity, is critical for estimating N‐cycling dynamics and N limitation in terrestrial ecosystems. However, whether there are linear or nonlinear responses of soil δ15N to increases in aridity and if these responses correspond
Jinhua Mao, Junxiao Pan, Lei Song, Ruiyang Zhang, Jinsong Wang, Dashuan Tian, Quancheng Wang, Jiaqiang Liao, Jinlong Peng, Shuli Niu   +9 more
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Supergene ecological effects induced by groundwater and its thresholds in the arid areas

2011 International Symposium on Water Resource and Environmental Protection, 2011
This paper is based on the actual survey data, analyzed the relationship between groundwater and ecological environment in arid and semi-arid area, pointed out that groundwater in the arid and semi arid areas boasts not only the resource properties and economic value, but also the important ecological value.
null Wenke Wang, null Zeyuan Yang, null Jinling Kong, null Donghui Cheng, null Lei Duan, null Guizhang Zhao   +5 more
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Vegetation fine-tunes aridity thresholds in soil biodiversity and function worldwide

Plant and Soil
Aims. Plant-soil interactions regulate the response of terrestrial ecosystem to climate change. Recent work suggests that aridity thresholds control soil biodiversity and function worldwide, which abruptly decreased once crossing specific levels of aridity.
Zhang, Jianwei, Feng, Youzhi, Berdugo, Miguel, Saez-Sandino, Tadeo, Coleine, Claudia, Garcia-Velázquez, Laura, Wang, Juntao (R19102), Delgado Baquerizo, Manuel   +7 more
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