scholarly journals Nitrogen controls the net primary production of an alpine Kobresia meadow in the northern Qinghai‐Tibet Plateau

2019 ◽  
Vol 9 (15) ◽  
pp. 8865-8875 ◽  
Author(s):  
Licong Dai ◽  
Xun Ke ◽  
Yangong Du ◽  
Fawei Zhang ◽  
Yikang Li ◽  
...  
Keyword(s):  
Primary Production ◽  
Net Primary Production ◽  
Tibet Plateau ◽  
Kobresia Meadow ◽  
Qinghai Tibet Plateau

The importance of permafrost in the steady and fast increase in net primary production of the grassland on the Qinghai–Tibet Plateau

CATENA ◽  
2022 ◽  
Vol 211 ◽  
pp. 105964
Author(s):  
Chuanhua Li ◽  
Hao Sun ◽  
Lihui Liu ◽  
Tianbao Dou ◽  
Min Zhou ◽  
...  
Keyword(s):  
Primary Production ◽  
Net Primary Production ◽  
Tibet Plateau ◽  
Qinghai Tibet Plateau ◽  
Fast Increase

scholarly journals The burying and grazing effects of plateau pika on alpine grassland are small: a pilot study in a semiarid basin on the Qinghai-Tibet Plateau

2016 ◽  
Vol 13 (22) ◽  
pp. 6273-6284 ◽  
Author(s):  
Shuhua Yi ◽  
Jianjun Chen ◽  
Yu Qin ◽  
Gaowei Xu
Keyword(s):  
Net Primary Production ◽  
Keystone Species ◽  
Alpine Grassland ◽  
Tibet Plateau ◽  
Plateau Pika ◽  
Carbon And Nitrogen ◽  
Grazing Effects ◽  
Considerable Controversy ◽  
The One ◽  
Qinghai Tibet Plateau

Abstract. There is considerable controversy about the effects of plateau pika (Ochotona curzoniae, hereafter pika) on alpine grassland on the Qinghai-Tibet Plateau (QTP). On the one hand, pika is considered a keystone species. On the other hand, it is being poisoned. Although significant efforts have been made to study the effects of pika at a quadrat scale ( ∼  m2), our knowledge about its distribution and effects at a larger scale is very limited. In this study, we investigated the direct effects, i.e., burying and grazing, of pika by upscaling field sampling at a quadrat scale to a plot scale ( ∼  1000 m2) by aerial photographing. Altogether 168 plots were set on four different types of alpine grassland in a semiarid basin on the QTP. Results showed that (1) the effects of pika pile burying on the reduction of vegetation cover, biomass, soil carbon, and nitrogen were less than 10 %, which was much smaller than the effects of bald patches; and (2) pika consumed 8–21 % of annual net primary production of grassland. We concluded that the direct burying and grazing effects of pika on alpine grassland were minor in this region. The quadcopter is an efficient and economic tool for long-term repeated monitoring over large regions for further understanding the role of pika.

scholarly journals Moderate grazing promotes the root biomass in Kobresia meadow on the northern Qinghai–Tibet Plateau

2019 ◽  
Vol 9 (16) ◽  
pp. 9395-9406 ◽  
Author(s):  
Licong Dai ◽  
Xiaowei Guo ◽  
Xun Ke ◽  
Fawei Zhang ◽  
Yikang Li ◽  
...  
Keyword(s):  
Root Biomass ◽  
Tibet Plateau ◽  
Kobresia Meadow ◽  
Qinghai Tibet Plateau
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