Results 151 to 160 of about 26,564 (171)
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2006
The vast reaches of central Asia are redolent with history, with stirring tales of Marco Polo’s epic journeys and all the romance of the Silk Road, an arduous caravan route that connected Asia and the West for hundreds of years. The archaeology of both central Asia and the Silk Road has yet to reveal all their secrets, for the area presents formidable ...
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The vast reaches of central Asia are redolent with history, with stirring tales of Marco Polo’s epic journeys and all the romance of the Silk Road, an arduous caravan route that connected Asia and the West for hundreds of years. The archaeology of both central Asia and the Silk Road has yet to reveal all their secrets, for the area presents formidable ...
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The steppes and deserts of the Xizang Plateau (Tibet)
Vegetatio, 1988The Xizang Plateau (Tibet) covers a vast area over 4 000 m with a severe environment. Steppes and deserts are widely distributed on the plateau to the west of 91.5°E. Poaceae, Asteraceae, Fabaceae and Cyperaceae are the most important families in the composition of steppe communities.
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Ecohydrological influences of biocrusts and their pathways in a desert steppe ecosystem
Ecohydrology, 2023AbstractBiological soil crusts (biocrusts) are a prevalent form of organic cover in drylands across the world, and they play a crucial role in shaping the ecohydrological processes and functioning of dryland ecosystems. However, in desert steppe ecosystems, the ecohydrological influences of biocrusts and their pathways have not yet been thoroughly ...
Dexun Qiu, Bo Xiao, Giora J. Kidron
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NDVI for Monitoring of the State of Steppe and Desert Ecosystems of the Gobi
Arid Ecosystems, 2019The current state of the dry-steppe, desert-steppe, mountain-steppe, and desert ecosystems of the Gobi Desert (Mongolia) has been studied. In the dry steppes and steppe deserts, not only is there a decrease in the phytocenotic indicators of plant communities and deterioration of the state of dominants, but also a change in their composition has been ...
P. D. Gunin +5 more
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Beta diversity diminishes in a chronosequence of desertification in a desert steppe
Land Degradation & Development, 2018AbstractBiodiversity is a central and multifaceted concept of community ecology, but a major challenge remains in understanding the variation mechanisms of biodiversity. Two ecological phenomena are shown in beta diversity: (a) spatial species turnover in space and (b) nestedness‐resultant of assemblages.
Zhuangsheng Tang +3 more
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Response of herbaceous vegetation to phosphorus fertilizer in steppe desert
Acta Ecologica Sinica, 2012In desert ecosystems,low soil moisture and high soil alkalinity decrease phosphorus(P) bioavailability,which results in a scarcity of soil P.Low soil P availability limits plant growth,development and reproduction,and consequently P is one of the most important limiting factors for vegetation growth and restoration in desert ecosystems.Furthermore ...
苏洁琼 SU Jieqiong +4 more
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Soil-plant relationships of two steppe desert shrubs
Plant and Soil, 1968Greasewood and hopsage shrubs growing together on the same ground accumulated large amounts of sodium and potassium respectively. The decay of accumulated leaf litter beneath the canopy spread of these shrubs has altered the soil chemistry over about 20 per cent of the ground area.
W. H. Rickard, R. F. Keough
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Monitoring Biodiversity and Ecosystem Function: Grasslands, Deserts, and Steppe
2002During the past century, land managers have grappled with methods to assess both the condition (health) and degree of change (trend) of arid landscapes [77]. Traditional approaches have focused on the documentation of various attributes of vascular plant communities [34]. More recently however, Australian and American researchers have incorporated data
R. Rosentreter, D. J. Eldridge
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The Vegetation of Semi-Deserts, Steppes and Arid Open Woodlands
2012Semi-desert and steppe vegetation, as well as arid light forests, are confined mainly to the intermountain part of East Georgia, namely to the Inner Kartli and the Lower Kartli Lowlands and the Iori plateau.
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