Significance and pedogenic variability of phytogenic mounds on the Loess Plateau of China

doi:10.1016/j.jaridenv.2017.06.003

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	Significance and pedogenic variability of phytogenic mounds on the Loess Plateau of China
	Jiao, Ju-Ying 1; Jiao, JY (reprint author), Inst Soil & Water Conservat, 26,Xinong Rd, Yangling 712100, Shaanxi, Peoples R China.; Du, Hua-Dong 2; Zhao, Xiao-Guang 2
刊名	JOURNAL OF ARID ENVIRONMENTS
	2017
卷号	146 页码:53-63
关键词	Phytogenic Mound Soil Properties Soil Erosion Sediment Runoff Loess Plateau
ISSN号	0140-1963
DOI	10.1016/j.jaridenv.2017.06.003
文献子类	Article
英文摘要	Phytogenic mounds, a mound-type microtopography, always develop around plants as an interaction of individual plants with erosion, sedimentation, and bioturbation processes in many different ecosystems. In this study, the spatial variation of soil physical, chemical and biological properties was examined in different parts of phytogenic mounds and intercanopy surfaces on different slope gradients on the Loess Plateau of China. The key indicators that affect soil properties were identified. The results revealed that soil properties on mounds underwent a subtle change compared to intercanopy surfaces on alpha <= 46.6% slopes. However, an improvement of soil properties was observed on alpha > 46.6% slopes. The spatial variability of soil properties did not obviously change among different mound parts on alpha <= 46.6% slopes. However, the soil indicators in the upper parts of the mounds increased by an average of 23.3% and 32.8% compared to the middle and lower parts, respectively, on alpha > 46.6% slopes. Soil chemical and biological variables were positively correlated. However, the physical properties correlated negatively with other variables. The soil available nutrient, moisture, and microbial activity were the key indicators that affected soil quality. The findings all indicate that phytogenic mounds play an important role in preventing soil deterioration and influence long-term ecosystem processes on the Loess Plateau of China. (C) 2017 Elsevier Ltd. All rights reserved.
学科主题	Environmental Sciences & Ecology
URL标识	查看原文
出版地	LONDON
语种	英语
出版者	ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
WOS记录号	WOS:000409155600007
资助机构	NSFC [41401306, 41371280] ; NSFC [41401306, 41371280] ; NSFC [41401306, 41371280] ; NSFC [41401306, 41371280]
内容类型	期刊论文
源URL	[http://ir.iswc.ac.cn/handle/361005/7900]
专题	水保所科研产出--SCI_2017--SCI
通讯作者	Jiao, JY (reprint author), Inst Soil & Water Conservat, 26,Xinong Rd, Yangling 712100, Shaanxi, Peoples R China.
作者单位	1.Northwest Agr & Forestry Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 2.Xian Univ Sci & Technol, Coll Geol & Environm, Xian 710054, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Jiao, Ju-Ying,Jiao, JY ,Du, Hua-Dong,et al. Significance and pedogenic variability of phytogenic mounds on the Loess Plateau of China[J]. JOURNAL OF ARID ENVIRONMENTS,2017,146:53-63.
APA	Jiao, Ju-Ying,Jiao, JY ,Du, Hua-Dong,&Zhao, Xiao-Guang.(2017).Significance and pedogenic variability of phytogenic mounds on the Loess Plateau of China.JOURNAL OF ARID ENVIRONMENTS,146,53-63.
MLA	Jiao, Ju-Ying,et al."Significance and pedogenic variability of phytogenic mounds on the Loess Plateau of China".JOURNAL OF ARID ENVIRONMENTS 146(2017):53-63.