Results 181 to 190 of about 155,595 (206)

Degradation stage effects on vegetation and soil properties interactions in alpine steppe

Journal of Mountain Science, 2021
In recent decades, overgrazing and the warming and drying climate have resulted in significant degradation of alpine grasslands in the source region of the Yellow River. However, research into the relationships between vegetation and soil properties has mainly focused on an overall degradation stage, and few studies have investigated which soil ...
Cheng-yang Li, Fei Peng, Xian Xue, Chi-min Lai, Wen-juan Zhang, Quan-gang You, Xiao-jie Chen, Xue-qin Zhang, Tao Wang   +8 more
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Nitrogen deposition accelerates greenhouse gas emissions at an alpine steppe site on the Tibetan Plateau

Science of The Total Environment, 2021
The increase in atmospheric N deposition can alter the exchange of greenhouse gas (GHG) between the biosphere and atmosphere. The effect of N deposition on GHG is poorly understood in alpine steppe. Therefore, we conducted a 4-year experiment with multilevel N addition of 0, 10, 20, 40, 80, 160 kg N ha-1 using the static chamber and gas chromatography ...
Songbo, Qu, , Xu-Ri, Jiaoneng, Yu, Fengzi, Li, Da, Wei, Almaz, Borjigidai   +5 more
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Water and CO2 fluxes over semiarid alpine steppe and humid alpine meadow ecosystems on the Tibetan Plateau

Theoretical and Applied Climatology, 2016
Based on eddy covariance flux data from July 15, 2014, to December 31, 2015, the water and CO2 fluxes were compared over a semiarid alpine steppe (Bange, Tibetan Plateau) and a humid alpine meadow (Lijiang, Yunnan) on the Tibetan Plateau and its surrounding region.
Lei Wang, Huizhi Liu, Yaping Shao, Yang Liu, Jihua Sun   +4 more
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Different responses of multifaceted plant diversities of alpine meadow and alpine steppe to nitrogen addition gradients on Qinghai-Tibetan Plateau

Science of The Total Environment, 2019
Qinghai-Tibetan Plateau (QTP), >4000 m known as the "third pole of the earth" and is highly sensitive to nitrogen (N) deposition, understanding the effects of N deposition on multifaceted plant diversity (taxonomy diversity, functional diversity and phylogenetic diversity) in the alpine grasslands of Qinghai-Tibet Plateau are vital for the conservation
Shuai Li, Shikui Dong, Hao Shen, Yuhui Han, Jing Zhang, Yudan Xu, Xiaoxia Gao, Mingyue Yang, Yu Li, Zhenzhen Zhao, Shiliang Liu, Huakun Zhou, Quanming Dong, Jane C. Yeomans   +13 more
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Ecological stability during the LGM and the mid-Holocene in the Alpine Steppes of Tibet?

Quaternary Research, 2010
AbstractArid and Alpine ecosystems are known for extreme environmental changes during the Late Quaternary. We hypothesize that the world's largest Alpine arid ecosystem however, the Alpine Steppes of the Tibetan highlands, remained ecologically stable during the LGM and the mid-Holocene.
Georg Miehe, Sabine Miehe, Kerstin Bach, Jürgen Kluge, Karsten Wesche, Yang Yongping, Liu Jianquan   +6 more
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Numerical analysis of inter-specific relationships in Alpine steppe community in Bayanbulak

Acta Ecologica Sinica, 2012
Highland ecosystems are believed to be of vital importance in ecological study,partly due to the rapid climate change worldwide and the highest sensitive feature of this special system,not only its productivity and biodiversity but also its inter-specific relationship,to environmental alterations.The Bayabulak Steppe distributes in the middle part of ...
房飞 FANG Fei, 胡玉昆 HU Yukun, 张伟 ZHANG Wei, 公延明 GONG Yanming, 柳妍妍 LIU Yanyan, 杨秀娟 YANG Xiujuan   +5 more
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Revegetation differentially influences microbial trophic groups in a Qinghai‐Tibetan alpine steppe ecosystem

Journal of Basic Microbiology, 2019
AbstractRevegetation accelerates the recovery of degraded lands. Different microbial trophic groups underpin this acceleration from the aspects of soil structure stabilization, nutrient accumulation, and ecosystem functions. However, little is known about how revegetation influences the community and biodiversity of different soil microbial trophic ...
Mingsen Qin, Guoxi Shi, Jean‐Pascal Miranda, Yongjun Liu, Yiming Meng, Jianbin Pan, Yuxing Chai, Shengjing Jiang, Guoying Zhou, Huyuan Feng, Qi Zhang   +10 more
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Distribution characteristics of soil particle size in alpine steppe and alpine meadow in the source region of the Yangtze River, China.

Ying yong sheng tai xue bao = The journal of applied ecology, 2021
To explore the heterogeneity of spatial distribution and particle size distribution (PSD) in the main underlying surface soil in the source area of the Yangtze River, we used the fractal theory to describe the soil particle size distribution of alpine steppe and alpine meadow, and analyzed the difference of fractal dimension characteristics of soil of ...
Ke-Jian, An, Xia, Wei, Heng-Ce, Zhao, Yan, He, Wen-Zhu, Yu   +4 more
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Impacts of warming on root biomass allocation in alpine steppe on the north Tibetan Plateau

Journal of Mountain Science, 2017
Biomass is an important component of global carbon cycling and is vulnerable to climate change. Previous studies have mainly focused on the responses of aboveground biomass and phenology to warming, while studies of root architecture and of root biomass allocation between coarse and fine roots have been scarcely reported in grassland ecosystems.
Xing-xing Ma, Yan Yan, Jiang-tao Hong, Xu-yang Lu, Xiao-dan Wang   +4 more
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Responses of ammonia‐oxidizing archaea and bacteria to nitrogen and phosphorus amendments in an alpine steppe

European Journal of Soil Science, 2019
Abstract With the increasing demands of livestock production, grasslands are under pressure from over‐intensified grazing. Phosphorus (P) and nitrogen (N) fertilization is widely employed to meet the nutrient demands of heavy grazing. Although soil ammonia‐oxidizers play
Junfu Dong, Rongxiao Che, Shugang Jia, Fang Wang, Biao Zhang, Xiaoyong Cui, Shiping Wang, Shuping Wang   +7 more
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