نتایج جستجو برای: alpine vegetation

تعداد نتایج: 56740  

2012
Changbai Mountain Congcong Shen Jinbo Xiong Huayong Zhang Youzhi Feng Xiangui Lin Xinyu Li Wenju Liang Haiyan Chu

The elevational patterns of diversity for plants and animals have been well established over the past century. However, it is unclear whether there is a general elevational distribution pattern for microbes. Changbai Mountain is one of few well conserved natural ecosystems, where the vertical distribution of vegetation is known to mirror the vegetation horizontal zonation from temperate to frig...

Journal: :Arctic, Antarctic, and Alpine Research 2021

Investigating changes in belowground functional plant traits is an important step toward a better understanding of vegetation dynamics during primary succession. However, alpine glacier foreland...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1997
P B Reich M B Walters D S Ellsworth

Despite striking differences in climate, soils, and evolutionary history among diverse biomes ranging from tropical and temperate forests to alpine tundra and desert, we found similar interspecific relationships among leaf structure and function and plant growth in all biomes. Our results thus demonstrate convergent evolution and global generality in plant functioning, despite the enormous dive...

Journal: :Biology letters 2012
William G Lee Andrew J Tanentzap Peter B Heenan

The hypothesis that early plant radiations on islands dampen diversification and reduce habitat occupancy of later radiations via niche pre-emption has never, to our knowledge, been tested. We investigated clade-level dynamics in plant radiations in the alpine zone, New Zealand. Our aim was to determine whether radiations from older colonizations influenced diversification and community dominan...

2015
Hao Yang Nianpeng He Yongtao He Shenggong Li Peili Shi Xianzhou Zhang Alexandra Weigelt

Understanding the influences of climatic changes on water use efficiency (WUE) of Tibetan alpine meadows is important for predicting their long-term net primary productivity (NPP) because they are considered very sensitive to climate change. Here, we collected wool materials produced from 1962 to 2010 and investigated the long-term WUE of an alpine meadow in Tibet on basis of the carbon isotope...

2009
Vittoz Pascal Hegg Otto

While phenological shifts and migration of isolated species under climate change have already been observed on alpine summits, very few studies have focused on community composition changes in subalpine grasslands. Here we use permanent plots monitored since 1954 and precisely located phytosociological censuses from 1970 to study compositional changes of subalpine grasslands in two distinct reg...

2006
Gang Wu Jing Wei Hongbing Deng Jingzhu Zhao

Nutrient availability regulates the responses of high-latitude ecosystems to climate change but nitrogen, phosphorus and sulfur biogeochemistry, especially, phosphorus and sulfur cycles, are poorly understood in Alpine tundra ecosystem. This study examines the cycling of nutrients in a 302-year-old Alpine tundra ecosystem in which litter has accumulated through compartment methods. Samples of t...

Journal: :The Journal of applied ecology 2017
Ceres Barros Maya Guéguen Rolland Douzet Marta Carboni Isabelle Boulangeat Niklaus E Zimmermann Tamara Münkemüller Wilfried Thuiller

1. Climate change and extreme events, such as drought, threaten ecosystems worldwide and in particular mountain ecosystems, where species often live at their environmental tolerance limits. In the European Alps, plant communities are also influenced by land-use abandonment leading to woody encroachment of subalpine and alpine grasslands. 2. In this study, we explored how the forest-grassland ec...

2014
Houjuan Chu Shiping Wang Haowei Yue Qiaoyan Lin Yigang Hu Xiangzhen Li Jizhong Zhou Yunfeng Yang

The grassland and shrubland are two major landscapes of the Tibetan alpine meadow, a region very sensitive to the impact of global warming and anthropogenic perturbation. Herein, we report a study showing that a majority of differences in soil microbial community functional structures, measured by a functional gene array named GeoChip 4.0, in two adjacent shrubland and grassland areas, were exp...

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