Arid
DOI10.1007/s11284-018-1582-4
Large herbivore-induced changes in phytogenic hillocks: links to soil and windblown sediment on the desert steppe in China
Liu, Wenting1; Lu, Shijie2; Wang, Tianle1; Yan, Ruirui3; Wei, Zhijun1
通讯作者Wei, Zhijun
来源期刊ECOLOGICAL RESEARCH
ISSN0912-3814
EISSN1440-1703
出版年2018
卷号33期号:5页码:889-899
英文摘要

Phytogenic hillocks are a type of wind-deposited biological micro-topography exhibiting a bulging shape under plant clusters in arid regions. In this study, we quantitatively measured the phenotypic characteristics of phytogenic hillocks, the soil particle size distribution in phytogenic hillocks and bare surfaces, and the sediment particle size distribution in hillocks of three heights under different grazing treatments. The results showed that the proportion of dense cluster phytogenic hillocks in the no grazing treatment was higher than in the moderate grazing treatment, and the proportion of scattered cluster phytogenic hillocks under moderate grazing was higher than under no grazing. The total area of dense cluster phytogenic hillocks under no grazing was higher than under heavy grazing and under moderate grazing. For the scattered cluster phytogenic hillocks, the total area was greatest under moderate grazing, followed by heavy grazing and, finally, no grazing. For single hillocks, grazing had a significant impact on the width of dense cluster phytogenic hillocks, while the heavy grazing treatment had a significant impact on the height of scattered cluster phytogenic hillocks. The results for windblown sediment showed that the only significant difference among grazing treatments occurred at a height of 2-8cm. Grazing changed the relationships among the phenotypic characteristics of phytogenic hillocks, the soil particle size of phytogenic hillocks, and the particle size of wind-deposited sediments. Our results suggested that grazing increased the proportion of scattered cluster phytogenic hillocks and caused the relationship between somewhat bare land and phytogenic hillocks to change from symbiosis to competition.


英文关键词Phenotypic characteristics of phytogenic hillocks Particle size distribution Vegetation structure Micro-topography Grazing
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000443688900008
WOS关键词WIND EROSION ; SEMIARID STEPPE ; COPPICE DUNE ; GRASSLAND ; PLANTS ; DEGRADATION ; VARIABILITY ; INTENSITY ; DIVERSITY ; STABILITY
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/2XILL650/208774
作者单位1.Inner Mongolia Agr Univ, Coll Grassland Resources & Environm, Hohhot, Peoples R China;
2.Inner Mongolia Agr Univ, Coll Sci, Hohhot, Peoples R China;
3.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Beijing, Peoples R China
推荐引用方式
GB/T 7714
Liu, Wenting,Lu, Shijie,Wang, Tianle,et al. Large herbivore-induced changes in phytogenic hillocks: links to soil and windblown sediment on the desert steppe in China[J],2018,33(5):889-899.
APA Liu, Wenting,Lu, Shijie,Wang, Tianle,Yan, Ruirui,&Wei, Zhijun.(2018).Large herbivore-induced changes in phytogenic hillocks: links to soil and windblown sediment on the desert steppe in China.ECOLOGICAL RESEARCH,33(5),889-899.
MLA Liu, Wenting,et al."Large herbivore-induced changes in phytogenic hillocks: links to soil and windblown sediment on the desert steppe in China".ECOLOGICAL RESEARCH 33.5(2018):889-899.
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