Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/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
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ISSN | 0912-3814 |
EISSN | 1440-1703 |
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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