Results 161 to 170 of about 29,501 (203)

Haloalkaliphilic actinomycetes in soils of Mongolian desert steppes

Biology Bulletin, 2007
The abundance of actinomycetes isolated from the soils of Mongolian desert steppes varies from several thousand to hundreds of thousands of CFU/g soil, depending on soil type and isolation medium. Eight actinomycete genera have been found in these soils: Streptomyces, Micromonospora, Saccharopolyspora, Actinomadura, Microtetraspora, Thermomonospora ...
Zh, Norovsurén, G V, Oborotov, G M, Zenova, R A, Aliev, D G, Zviagintsev   +4 more
openaire   +2 more sources

Soil-plant relationships of two steppe desert shrubs

Plant and Soil, 1968
Greasewood 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
openaire   +1 more source

Validation of Soil Moisture Retrieval in Desert Steppe Area

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019
Surface soil moisture (SM) plays a decisive function during the grassland degradation and restoration process. In this paper, a surface soil moisture retrieval model in desert steppe area with improved spatial resolution is established using diurnal temperature range (DTR) and Normalized Difference Vegetation Index (NDVI).
Jun'e Fu, Zhiguo Pang, Jingxuan Lu, Lin Li, Tianjie Lei, Wei Qu, Xiaotao Li   +6 more
openaire   +1 more source

To Desert and Steppe

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 ...
openaire   +1 more source

Response of herbaceous vegetation to phosphorus fertilizer in steppe desert

Acta Ecologica Sinica, 2012
In 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, 李新荣 LI Xinrong, 冯丽 FENG Li, 回嵘 HUI Rong, 黄磊 HUANG Lei   +4 more
openaire   +1 more source

The steppes and deserts of the Xizang Plateau (Tibet)

Vegetatio, 1988
The 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.
openaire   +1 more source

Monitoring Biodiversity and Ecosystem Function: Grasslands, Deserts, and Steppe

2002
During 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
openaire   +1 more source

Effects of large herbivore exclusion on southern Mongolian desert steppes

Acta Oecologica, 2010
Large areas of Mongolia have been subject to semi-nomadic pastoralism for centuries, but recently increasing livestock numbers have raised concerns about possible degradation effects. We assessed the impactof grazing in southern Mongolian desert steppes (meanprecipitation 30%) exceeds the effects of grazing on vegetation composition, species richness,
Karsten Wesche, Katrin Ronnenberg, Vroni Retzer, Georg Miehe   +3 more
openaire   +1 more source

Steppe and desert in the light of lichen vegetation.

Proceedings of the Linnean Society of London, 1937
Summary. .1. Bare places of the desert bear a rich cover of lower plants, i.e. of lichens. 2. Lichens may be of great use in defining the floristic characteristic of steppe and desert. 3. With the help of lichens it is possible to prove the identity of the desert in Egypt and in Southern Palestine. 4. A similarity of the desert
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Soil deflation and desertization of steppes in Ural-Caspian subregion

Arid Ecosystems, 2013
The established functional relationship between soil losses due to deflation and the physical-geographic conditions in the wind corridors of the Ural-Caspian steppes has made it possible to identify agroecological types of lands with different intensities of soil formation and soil deflation losses, the ratio of which is proposed as an index of soil ...
A. I. Kliment’ev, E. V. Pavleichik
openaire   +1 more source