Small-scale species dynamics in semi-arid steppe vegetation in Inner Mongolia

1995 ◽  
Vol 6 (4) ◽  
pp. 583-592 ◽  
Author(s):  
Zhang Wei ◽  
Christina Skarpe
Keyword(s):  
Inner Mongolia ◽  
Small Scale ◽  
Steppe Vegetation ◽  
Species Dynamics ◽  
Arid Steppe ◽  
Semi Arid

scholarly journals Sheep manure application increases soil exchangeable base cations in a semi-arid steppe of Inner Mongolia

2015 ◽  
Vol 7 (3) ◽  
pp. 361-369 ◽  
Author(s):  
YuGe Zhang ◽  
Shan Yang ◽  
MingMing Fu ◽  
JiangPing Cai ◽  
YongYong Zhang ◽  
...  
Keyword(s):  
Inner Mongolia ◽  
Base Cations ◽  
Manure Application ◽  
Exchangeable Base Cations ◽  
Sheep Manure ◽  
Arid Steppe ◽  
Semi Arid

Small-scale spatial patterns of two soil lichens in semi-arid Mediterranean steppe

2003 ◽  
Vol 35 (1) ◽  
pp. 71-81 ◽  
Author(s):  
Fernando T. Maestre
Keyword(s):  
Spatial Distribution ◽  
Correlation Analysis ◽  
Spatial Pattern ◽  
Soil Surface ◽  
Arid Ecosystems ◽  
Small Scale ◽  
Significant Relationships ◽  
Arid Steppe ◽  
The Individual ◽  
Semi Arid

AbstractBiological crusts are a common feature of the soil surface in arid and semi-arid ecosystems, where they play a major role in ecosystem functioning. In recent years, there has been an increasing interest in the ecophysiology, floristics, and dynamics of crust-forming lichens but little is known about the effect of vascular plants on their small-scale spatial distribution. To increase our understanding about the interactions between crust-forming lichens and vegetation in semi-arid areas, the spatial pattern and interaction of two soil lichens, Cladonia convoluta and Squamarina cartilaginea, at two microsites in semi-arid Stipa tenacissima steppe of south-eastern Spain are evaluated. The aim of this study was to determine if the microsite provided by Stipa tussocks promoted changes in the individual patterns and in the spatial covariation of these soil lichens. Spatial analysis by distance index (SADIE) coupled with correlation analysis was used to explore the individual patterns and the spatial relationships between the two species. SADIE detected a significant clumped pattern in the spatial distribution of both species, but Stipa tussocks promoted changes only in the spatial pattern of Cladonia. Correlation analysis revealed the presence of significant relationships between the two species, particularly close to Stipa tussocks. The results show that the microenvironment provided by Stipa is able to modify the small-scale spatial pattern of soil lichens in semi-arid steppe, and suggest the presence of facilitation between Stipa and Cladonia.

Importance of point sources on regional nitrous oxide fluxes in semi-arid steppe of Inner Mongolia, China

2007 ◽  
Vol 296 (1-2) ◽  
pp. 209-226 ◽  
Author(s):  
J. Holst ◽  
C. Liu ◽  
Z. Yao ◽  
N. Brüggemann ◽  
X. Zheng ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Inner Mongolia ◽  
Point Sources ◽  
Arid Steppe ◽  
Semi Arid

Winter-grazing reduces methane uptake by soils of a typical semi-arid steppe in Inner Mongolia, China

2007 ◽  
Vol 41 (28) ◽  
pp. 5948-5958 ◽  
Author(s):  
Chunyan Liu ◽  
Jirko Holst ◽  
Nicolas Brüggemann ◽  
Klaus Butterbach-Bahl ◽  
Zhisheng Yao ◽  
...  
Keyword(s):  
Inner Mongolia ◽  
Methane Uptake ◽  
Arid Steppe ◽  
Winter Grazing ◽  
Semi Arid

Effects of defoliation timing on plant nutrient resorption and hay production in a semi-arid steppe

2020 ◽  
Author(s):  
Tongrui Zhang ◽  
Frank Yonghong Li ◽  
Hao Wang ◽  
Lin Wu ◽  
Chunjun Shi ◽  
...  
Keyword(s):  
Nutrient Cycling ◽  
Nutrient Resorption ◽  
Plant Production ◽  
Conservation Strategy ◽  
Plant Nutrient ◽  
Resorption Efficiency ◽  
Nutrient Return ◽  
Peak Biomass ◽  
Arid Steppe ◽  
Semi Arid

Abstract Aims Nutrient resorption is a key plant nutrient conservation strategy, and its response to environmental and management changes is linked to nutrient cycling and production of ecosystems. Defoliation is a major pathway of mowing affecting plant nutrient resorption and production in grasslands, while the effect of defoliation timing has not been unexplored. The aim of this study was to examine the effect of defoliation timing on plant nutrient resorption and production in a steppe ecosystem. Methods We conducted a field experiment in a semi-arid steppe of Inner Mongolia including four treatments: early defoliation, peak defoliation, late defoliation and non-defoliation. We measured plant nitrogen (N) and phosphorus (P) resorption at species and community levels, and quantified plant N and P fluxes in resorption, litter return and hay output. Plant production in the mowing system was assessed by hay production and quality. Important Findings Peak and late defoliation, but not early defoliation, reduced plant community N and P resorption proficiency (RP); and late defoliation reduced N resorption efficiency (RE) but not P resorption efficiency. Peak and late defoliation, but not early defoliation, reduced plant nutrient resorption flux and litter nutrient return flux. Defoliation timing did not alter root nutrient accumulation as nutrient uptake from soil likely compensated the deficit of nutrient resorption. Peak defoliation had the highest hay production and quality, while early defoliation had the lowest. Our results provide new insights into the nutrient cycling in mowing grassland, and imply that the mowing timing can be used as a tool to mediate the balance between conservation and production of steppes, and the early mowing before plant peak biomass period is recommended for conservation of the steppes while keeping sustainable pastoral production.

Seasonal patterns of the abundance of ground-dwelling arthropod guilds and their responses to livestock grazing in a semi-arid steppe

Pedobiologia ◽  
2021 ◽  
Vol 85-86 ◽  
pp. 150711
Author(s):  
Jianwei Cheng ◽  
Frank Yonghong Li ◽  
Xinmin Liu ◽  
Xinyu Wang ◽  
Dong Zhao ◽  
...  
Keyword(s):  
Livestock Grazing ◽  
Seasonal Patterns ◽  
Arid Steppe ◽  
Semi Arid

Controls of surface soil moisture spatial patterns and their temporal stability in a semi-arid steppe

2010 ◽  
Vol 24 (18) ◽  
pp. 2507-2519 ◽  
Author(s):  
Y. Zhao ◽  
S. Peth ◽  
X. Y. Wang ◽  
H. Lin ◽  
R. Horn
Keyword(s):  
Soil Moisture ◽  
Spatial Patterns ◽  
Surface Soil ◽  
Temporal Stability ◽  
Surface Soil Moisture ◽  
Arid Steppe ◽  
Semi Arid
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