Intra-seasonal precipitation amount and pattern differentially affect primary production of two dominant species of Inner Mongolia grassland

2012 ◽  
Vol 44 ◽  
pp. 2-10 ◽  
Author(s):  
Yanshu Liu ◽  
Qingmin Pan ◽  
Shuxia Zheng ◽  
Yongfei Bai ◽  
Xingguo Han
Keyword(s):  
Primary Production ◽  
Inner Mongolia ◽  
Dominant Species ◽  
Precipitation Amount ◽  
Seasonal Precipitation ◽  
Inner Mongolia Grassland

scholarly journals Single Grazing Is More Detrimental to Grasslands Than Mixed Grazing: Evidence From the Response of Functional Traits of Dominant Plants to Grazing Systems

2021 ◽  
Vol 9 ◽  
Author(s):  
Zheng Wang ◽  
Jinghui Zhang ◽  
Zhiyong Li ◽  
Huamin Liu ◽  
Lixin Wang ◽  
...  
Keyword(s):  
Functional Traits ◽  
Inner Mongolia ◽  
Dominant Species ◽  
Intraspecific Variability ◽  
Cattle Grazing ◽  
Plant Functional Traits ◽  
Dry Matter Content ◽  
Sheep Grazing ◽  
Inner Mongolia Grassland ◽  
Grazing Systems

Plant functional traits reflect species ecological strategies and determine how plants respond to environmental changes, however, how dominant species in the Inner Mongolia grassland adapt to different grazing systems by changing their functional traits has not been systematically investigated. In this study, we established four 7-year grazing treatments in the Inner Mongolia grassland: cattle grazing, sheep grazing, mixed sheep and cattle grazing, and no grazing. Fourteen functional traits of three dominant species (Stipa grandis, Leymus chinensis, and Cleistogenes squarrosa) were measured under the different grazing treatments. We found convergences of plant functional traits that indicate herbivory avoidance or tolerance. Plants reduced their vegetative height (VH) and stem: leaf ratio (SLR) to avoid grazing; increased their ability to acquire resources by increasing their specific leaf area (SLA), leaf nitrogen concentration (LNC), and leaf phosphorus concentration (LPC); and reduced their leaf dry matter content (LDMC) to tolerate grazing. Moreover, plants may adapt to grazing by increasing the intraspecific variability of their functional traits. Sheep-only grazing adversely affected L. chinensis growth and survival, while cattle-only grazing hindered S. grandis growth and increased the intraspecific variability of its plant functional traits. Our study emphasizes that intraspecific variability is an important indicator of the responses of plant functional traits to grazing. Since single grazing is more detrimental to the functional traits of dominant plants, we suggest that mixed cattle and sheep grazing may be a more environmentally friendly and sustainable practice for the Inner Mongolia grassland than single grazing.

scholarly journals Spatiotemporal Monitoring of a Grassland Ecosystem and Its Net Primary Production Using Google Earth Engine: A Case Study of Inner Mongolia from 2000 to 2020

2021 ◽  
Vol 13 (21) ◽  
pp. 4480
Author(s):  
Renjie Ji ◽  
Kun Tan ◽  
Xue Wang ◽  
Chen Pan ◽  
Liang Xin
Keyword(s):  
Primary Production ◽  
Inner Mongolia ◽  
Climatic Factors ◽  
Net Primary Production ◽  
Policy Formulation ◽  
Google Earth ◽  
Ecological Crisis ◽  
Inner Mongolia Grassland ◽  
Google Earth Engine ◽  
The Impact

Grassland ecosystems are a significant part of the global ecosystem and support the livelihoods of millions of people. The Inner Mongolia grassland is the largest temperate grassland in the world, and an important ecological barrier for China, but due to human activities and climate change it has been faced with an ecological crisis in recent years. In this study, a modified Carnegie-Ames-Stanford approach (CASA) model based on the Google Earth Engine platform was used to determine the net primary production (NPP) in the Inner Mongolia grassland from 2000 to 2020. The results show that the average annual NPP of the Inner Mongolia grassland is 278.63 g C/m2, and 83.22% of the total area has shown an increasing trend during the study period. We also analyzed the impact of land-use/cover change (LUCC) and climatic factors on NPP. We found that: (1) the total area of grassland increased from 2000 to 2010 and then decreased from 2010 to 2020. During the whole study period, although the grassland area increased slightly by 4728.69 km2 because of LUCC, the overall effect of LUCC on grassland NPP was negative, with a loss of 17.63 Tg C compared to an increase of 16.38 Tg C. (2) The main meteorological factor affecting the NPP of the Inner Mongolia grassland is precipitation, followed by sunshine duration and temperature. About 97.06% of the grassland shows a positive correlation between NPP and precipitation. (3) The results for NPP and its changing trends are not completely consistent in the long- and short-term study periods. Considering the instability of grassland growth, it is necessary to take the periodic variation of precipitation into account when studying NPP. These results could provide basic information for policy formulation and scientific research into the ecological environment management of grassland areas in the future.

scholarly journals Taxonomic, functional, and phylogenetic beta diversity in the Inner Mongolia grassland

2021 ◽  
pp. e01634
Author(s):  
Fengshi Li ◽  
Yongzhi Yan ◽  
Jianing Zhang ◽  
Qing Zhang ◽  
Jianming Niu
Keyword(s):  
Beta Diversity ◽  
Inner Mongolia ◽  
Inner Mongolia Grassland

Study of Influence of Road Construction on Grassland in Inner Mongolia

2013 ◽  
Vol 807-809 ◽  
pp. 1881-1885
Author(s):  
Chun Mei Zhang ◽  
Min Zhao ◽  
Xue Lv
Keyword(s):  
Decision Making ◽  
Sustainable Development ◽  
Analytic Hierarchy Process ◽  
Inner Mongolia ◽  
Road Construction ◽  
Environment Protection ◽  
Analytic Hierarchy ◽  
The Sustainable Development ◽  
Inner Mongolia Grassland ◽  
Hierarchy Process

In this paper, the indexes that are used to assess the influence of road construction on Inner Mongolia grassland have been proposed based on the environment protection perspective. The Analytic hierarchy process was employed to evaluate the importance of different indexes regarding to influence. These indexes would be used to provide information for decision making about road construction in order to achieve the sustainable development of grassland.

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