干旱区生态环境知识资源中心(Arid): Factors influencing the relative recovery rate of dunes fixed under different sand-fixing measures in southwest Iran

Arid

DOI	10.1016/j.catena.2020.104706
	Factors influencing the relative recovery rate of dunes fixed under different sand-fixing measures in southwest Iran
	Khalilimoghadam, Bijan; Bodaghabadi, Mohsen Bagheri
通讯作者	Khalilimoghadam, B
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2020
卷号	194
英文摘要	The present study was conducted to determine the responses of sand dunes, using different restorative measures on different decadal time-scales in desert lands of southwest Iran. The study was carried out using a factorial experiment with a completely randomized design which was replicated three times. Factors consisted of restoration measures (PM-BF: petroleum mulching-biological fixation, PM: petroleum mulching, IP-BF: irrigation practices-biological fixation), history of fixation ( < 5, 5-10, 10-20, 30-40, and 40-50 years), and depths ( < 3, 3-10, and 10-40 cm). The physical, mechanical, and chemical properties of sand dunes were measured. Furthermore, vegetation cover parameters included Shannon's diversity index, and spectral indices were determined. The relative recovery rate (R r ) of sand dune properties for different decades after fixing sand dunes was investigated. The results of this research disclosed that all three measures of PM, IP-BF, and PM-BF led to the improvement of sand dune properties. However, no significant differences were noticed between the effects of different measures of fixing sand dunes on the properties of the sand dune ecosystem. The 11, coefficient of parameters such as Shannon's diversity index (3.58), organic matter (4.08), clay (2.8), silt (1.78), electrical conductivity (5.78), sodium absorption ratio (5.38), cation exchangeable capacity (1.48), penetration resistance (11.14), and cohesion (4.12) increased over the time period of 30-40 years compared to the initial years of sand dune stabilization ( < 5 years). The R r of sand dune properties decreased from the east to west of sand dunes in this study due to a drop in precipitation as well as mismanagement, including deforestation and overgrazing. Therefore, socioeconomic factors play an important role in the recovery of ecosystems in this region.
英文关键词	Sand dune recovery Disturbance Resilience Post-disturbance recovery
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000566699000040
WOS关键词	BIOLOGICAL SOIL CRUST ; VEGETATION RESTORATION ; TENGGER DESERT ; SURFACE ; CAPACITY ; EROSION ; LAND
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326080
作者单位	[Khalilimoghadam, Bijan] Agr Sci & Nat Resources Univ Khuzestan, Dept Soil Sci, Mollasani, Iran; [Bodaghabadi, Mohsen Bagheri] Agr Res Educ & Extens Org AREEO, Soil & Water Res Inst, Karaj, Iran
推荐引用方式 GB/T 7714	Khalilimoghadam, Bijan,Bodaghabadi, Mohsen Bagheri. Factors influencing the relative recovery rate of dunes fixed under different sand-fixing measures in southwest Iran[J],2020,194.
APA	Khalilimoghadam, Bijan,&Bodaghabadi, Mohsen Bagheri.(2020).Factors influencing the relative recovery rate of dunes fixed under different sand-fixing measures in southwest Iran.CATENA,194.
MLA	Khalilimoghadam, Bijan,et al."Factors influencing the relative recovery rate of dunes fixed under different sand-fixing measures in southwest Iran".CATENA 194(2020).