Arid
DOI10.1007/s10021-020-00526-3
Effects of Grazing, Wind Erosion, and Dust Deposition on Plant Community Composition and Structure in a Temperate Steppe
Zheng, Mengmei1; Song, Jian2; Ru, Jingyi1; Zhou, Zhenxing1; Zhong, Mingxing1; Jiang, Lin3; Hui, Dafeng4; Wan, Shiqiang1,2
通讯作者Wan, Shiqiang
来源期刊ECOSYSTEMS
ISSN1432-9840
EISSN1435-0629
出版年2020
英文摘要

Grazing can affect plant community composition and structure directly by foraging and indirectly by increasing wind erosion and dust storms and subsequently influence ecosystem functioning and ecological services. However, the combined effects of grazing, wind erosion, and dust deposition have not been explored. As part of a 7-year (2010-2016) field manipulative experiment, this study was conducted to examine the impacts of grazing and simulated aeolian processes (wind erosion and dust deposition) on plant community cover and species richness in a temperate steppe on the Mongolian Plateau, China. Grazing decreased total cover by 4.2%, particularly the cover of tall-stature plants (> 20 cm in height), but resulted in 9.1% greater species richness. Wind erosion also reduced total cover by 17.0% primarily via suppressing short-stature plants associated with soil nitrogen loss, but had no effect on species richness. Dust deposition enhanced total cover by 5.7%, but resulted in a 7.3% decrease in species richness by driving some of the short-stature plant species to extinction. Both wind erosion and dust deposition showed additive effects with grazing on vegetation cover and species richness, though no detectable interaction between aeolian processes and grazing could be detected due to our methodological constraints. The changes in gross ecosystem productivity, ecosystem respiration, and net ecosystem productivity under the wind erosion and dust deposition treatments were positively related to aeolian process-induced changes in vegetation cover and species richness, highlighting the important roles of plant community shifts in regulating ecosystem carbon cycling. Our findings suggest that plant traits (for example, canopy height) and soil nutrients may be the key for understanding plant community responses to grassland management and natural hazards.


英文关键词dust storm plant diversity plant height plant-herbivore interaction selective foraging soil nutrient species richness vegetation cover
类型Article ; Early Access
语种英语
国家Peoples R China ; USA
收录类别SCI-E
WOS记录号WOS:000544550200003
WOS关键词BIOLOGICAL SOIL CRUSTS ; INNER-MONGOLIA ; DESERT STEPPE ; STOCKING RATE ; SPATIAL HETEROGENEITY ; VEGETATION STRUCTURE ; SPECIES COMPOSITION ; SEMIARID GRASSLAND ; ECOSYSTEM FUNCTION ; COLORADO PLATEAU
WOS类目Ecology
WOS研究方向Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/319491
作者单位1.Henan Univ, Sch Life Sci, Int Joint Res Lab Global Change Ecol, Kaifeng 475004, Henan, Peoples R China;
2.Hebei Univ, Coll Life Sci, Inst Life Sci & Green Dev, Baoding 071002, Hebei, Peoples R China;
3.Georgia Inst Technol, Sch Biol Sci, Atlanta, GA 30332 USA;
4.Tennessee State Univ, Dept Biol Sci, Nashville, TN 37209 USA
推荐引用方式
GB/T 7714
Zheng, Mengmei,Song, Jian,Ru, Jingyi,et al. Effects of Grazing, Wind Erosion, and Dust Deposition on Plant Community Composition and Structure in a Temperate Steppe[J],2020.
APA Zheng, Mengmei.,Song, Jian.,Ru, Jingyi.,Zhou, Zhenxing.,Zhong, Mingxing.,...&Wan, Shiqiang.(2020).Effects of Grazing, Wind Erosion, and Dust Deposition on Plant Community Composition and Structure in a Temperate Steppe.ECOSYSTEMS.
MLA Zheng, Mengmei,et al."Effects of Grazing, Wind Erosion, and Dust Deposition on Plant Community Composition and Structure in a Temperate Steppe".ECOSYSTEMS (2020).
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