Results 231 to 240 of about 25,207 (272)

Alpine wetlands in the Lhasa River Basin, China

Journal of Geographical Sciences, 2010
The Lhasa River Basin is one of the typical distribution regions of alpine wetlands on the Tibetan Plateau. It is very important to get a better understanding of the background and characteristics of alpine wetland for monitoring, protection and utilization.
Yili Zhang, Chunlian Wang, Wanqi Bai, Zhaofeng Wang, Yanli Tu, Dor Gka Yangjaen   +5 more
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Phenology of aquatic macroinvertebrates in an alpine wetland

Hydrobiologia, 1996
The temporal distribution of populations of aquatic macroinvertebrates have been extensively investigated in temperate arctic regions, but little information is available for alpine regions in North America. This paper describes phenology patterns of the aquatic macroinvertebrates of a high elevation wetland (3593 m) in the Green Lakes Valley, Colorado
Timothy B. Mihuc, Dale W. Toetz
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Dynamic Changes of the Alpine Wetlands in Tibet, China

IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018
Based on the field investigation and long term remote sensing data, the dynamic changes of the alpine wetland in Tibet were studied. Results showed the alpine wetlands accounted for 13.99% of total wetlands in China in 2010. The area of lakes were 31653.16 km2, accounting for 58.79 % of total wetlands in Tibet.
Dong LIU, Mengjia Xu
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Water chemistry and periphyton in an alpine wetland

Hydrobiologia, 1995
Remote high elevation sites are thought to be good sites to monitor global change and anthropogenic effects on ecosystems. This study was conducted during 1987–1990 in a high elevation wetland (3593 m) located in the Green Lakes Valley, Front Range, Colorado (USA). Salix spp. was the dominant riparian species in this 2 ha. wetland. Small shallow pools (
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Spectral features and separability of alpine wetland grass species

Spectroscopy Letters, 2016
ABSTRACTThis study aimed to analyze the spectral features of alpine wetland grasses and evaluate three types of spectral feature computational methods. In situ spectra of alpine wetland grasses were collected in the northeastern Qinghai–Tibetan Plateau (Niaodao Wetland of International Importance and Ruoergai Wetland of International Importance), and ...
Shanning Bao, Chunxiang Cao, Wei Chen, Haijing Tian   +3 more
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Composition and diversity of soil microbial communities in the alpine wetland and alpine forest ecosystems on the Tibetan Plateau

Science of The Total Environment, 2020
While the composition and diversity of soil microbial communities play a central and essential role in biogeochemical cycling of nutrients, they are known to be shaped by the physical and chemical properties of soils and various environmental factors.
Xiaojie Wang, Zhichao Zhang, Zhiqiang Yu, Guofeng Shen, Hefa Cheng, Shu Tao   +5 more
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Spatial variations on methane emissions from Zoige alpine wetlands of Southwest China

Science of The Total Environment, 2009
This study was aimed to understand the spatial variation of CH(4) emissions from alpine wetlands in Southwest China on a field-scale in two phenological seasons, namely the peak growing season and the spring thaw. Methane emission rates were measured at 30 plots, which included three kinds of environmental types: dry hummock, Carex muliensis and ...
Huai, Chen, Ning, Wu, Yongheng, Gao, Yanfen, Wang, Peng, Luo, Jianqing, Tian   +5 more
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Annual methane emissions from degraded alpine wetlands in the eastern Tibetan Plateau

Science of The Total Environment, 2019
Grazing-oriented drainage of alpine/boreal wetlands has been broadly implemented to meet the increasing demand for animal products. However, the annual methane (CH4) emissions from alpine fens degraded due to drainage for grazing have not been well characterized due to a lack of year-round observations.
Han Zhang, Zhisheng Yao, Lei Ma, Xunhua Zheng, Rui Wang, Kai Wang, Chunyan Liu, Wei Zhang, Bo Zhu, Xiangyu Tang, Zhenghua Hu, Shenghui Han   +11 more
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Feedbacks of Alpine Wetlands on the Tibetan Plateau to the Atmosphere

Wetlands, 2019
The alpine wetlands of the Tibetan Plateau (TP) contribute 30%–40% of China’s natural wetlands, and they are experiencing changes in climate, i.e. warming of 0.26 °C 10 yr−1 (since the 1950s), as well as considerable human impacts. Consequently, alpine wetland extent show strong response to these impacts in most part, a reduction since the 1970s ...
Da Wei, Hui Zhao, Lin Huang, Yahui Qi, Xiaodan Wang   +4 more
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Models as multiple working hypotheses: hydrological simulation of tropical alpine wetlands

Hydrological Processes, 2010
Tropical alpine grasslands, locally known as paramos, are the water towers of the northern Andes. They are an essential water source for drinking water, irrigation schemes and hydropower plants. But despite their high socio-economic relevance, their hydrological processes are very poorly understood.
Beven, Keith, Buytaert, Wouter
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