Results 101 to 110 of about 54,300 (256)

Methane emissions from wetlands on the Qinghai-Tibet Plateau

open access: yesChinese Science Bulletin, 1999
The areal extent of cold freshwater wetlands on the Qinghai-Tibet Plateau (QTP) is estimated at 0.133 × 106 km2, suggesting a significant methane potential. Methane fluxes from wet alpine meadows, peatlands,Hippuris vulgaris mires and secondary marshes were 43.18, 12.96, −0.28 and 45.90 mg · m−2 · d−1, respectively based on the transect flux studies at
Huijun Jin   +4 more
openaire   +1 more source

Effects of all-trans retinoic acid and oxygen concentration on the proliferation and differentiation of subcutaneous adipocytes in yak

open access: yesFrontiers in Veterinary Science
In this study, we investigated the mechanism by which all-trans retinoic acid (ATRA) regulates the hypoxic adaptation of yak subcutaneous adipocytes through a dose-dependent regulation.
Sibinuer Yasenjian   +9 more
doaj   +1 more source

MLVA distribution characteristics of in China and the correlation analysis [PDF]

open access: yes, 2009
Background Yersinia pestis, the aetiological agent of plague, has been well defined genotypically on local and worldwide scales. In November 2005, five cases of severe pneumonia of unknown causes, resulting in two deaths, were reported in Yulong, Yunnan ...
Xiaoai Zhang   +6 more
core   +2 more sources

Water use efficiency of China\u27s terrestrial ecosystems and responses to drought [PDF]

open access: yes, 2015
Water use efficiency (WUE) measures the trade-off between carbon gain and water loss of terrestrial ecosystems, and better understanding its dynamics and controlling factors is essential for predicting ecosystem responses to climate change.
Ju, Weimin   +5 more
core   +2 more sources

UVB-induced HaCat cell damage and Myricaria Paniculata’s molecular effects

open access: yesScientific Reports
The Qinghai‒Tibet Plateau, the “Roof of the World” in China, has high altitude, low pressure, thin air, little rain, long sunshine, and snow cover, causing 80–90% more Ultraviolet (UV) reflectance and greater skin UV exposure at high altitudes. Myricaria
Likuan Liu   +6 more
doaj   +1 more source

Application of induced polarization gradient measurement in the exploration of the sanjiaotong gold mining area on the northern margin of the Qinghai Tibet Plateau

open access: yesFrontiers in Earth Science
With the increasingly difficult situation of mineral resources in various countries around the world, there is an urgent need for effective deep. Exploration techniques and methods to expand mineral resources and enhance the survival capacity of mines ...
Hao Zhou   +6 more
doaj   +1 more source

Experimental Insights on Carbon Sequestration and Yield Improvement in Oat Fields with 30% Organic Nitrogen Substitution in the Tibetan Plateau

open access: yesAgronomy
To evaluate the optimal substitution ratio of organic fertilizer for chemical nitrogen fertilizer and its underlying mechanisms, a pot experiment was conducted in the rhizosphere soil of oat (Avena sativa) on the Qinghai–Tibet Plateau.
Lianxue Duan   +5 more
doaj   +1 more source

Impacts of forest changes on hydrology: a case study of large watersheds in the upper reaches of Minjiang River watershed in China [PDF]

open access: yes, 2012
Quantifying the effects of forest changes on hydrology in large watersheds is important for designing forest or land management and adaptation strategies for watershed ecosystem sustainability.
S. Liu, X. Cui, X. Wei
core   +1 more source

Geophysical study of the structure and processes of the continental convergence zones: Alpine-Himalayan belt [PDF]

open access: yes
Studies of the structure of the continental collision zones using seismic and body waves, theoretical modelling of the thermal regime of the convergence processes, and studies of earthquake mechanisms and deformation aspects of the model are ...
Molnar, P., Toksoz, M. N.
core   +4 more sources

Quantitative comparison and evaluation between aerial and underground parts of Gentiana straminea through simultaneous determination of five major compounds by RP-HPLC

open access: yesHeliyon
Herbal Gentiana straminea Maxim. (Family Gentianaceae), “Ma Hua Jiao” in Chinese, is a commonly used Chinese medicine. Secoiridoids and flavonoids have been identified as the major active components of herbal medicines used in the treatment of hepatitis,
Junlei Hao   +3 more
doaj   +1 more source

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