干旱区生态环境知识资源中心(Arid): Assessment of post-wildfire soil quality and its recovery in semi-arid upland rangelands in Central Iran through selecting the minimum data set and quantitative soil quality index

Arid

DOI	10.1016/j.catena.2021.105202
	Assessment of post-wildfire soil quality and its recovery in semi-arid upland rangelands in Central Iran through selecting the minimum data set and quantitative soil quality index
	Raiesi, Fayez; Pejman, Masoomeh
通讯作者	Raiesi, F (corresponding author), Shahrekord Univ, Fac Agr, Dept Soil Sci & Engn, POB 115, Shahrekord, Iran.
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2021
卷号	201
英文摘要	Recovery of soil quality after wildfire is essential for soil functioning such as nutrient cycling, resistance to biochemical degradation and sustainable plant growth. Post-fire soil quality is crucial for the maintenance of ecosystem sustainability. The objective of this study was to develop a soil quality index (SQI) for assessing post-fire soil quality in upland rangeland ecosystems of a semi-arid region in Central Iran. Soil samples were collected from burnt and unburnt plots at six rangeland sites two years after a wildfire event and analyzed for 22 soil properties. The soil microbial and biochemical properties indicated a greater magnitude of post-fire changes than soil chemical properties. The contribution of microbial respiration to soil quality, obtained using factor analysis, was the highest (36%) followed by particulate organic carbon (22%), microbial biomass carbon (15%), available phosphorus (15%) and alkaline phosphomonoesterase activity (12%). This indicates that microbial properties, labile carbon and phosphorus availability are the most important soil quality indicators to detect the wildfire effects in the study rangelands. The SQI value was, on average, 28% lower in burnt rangelands (0.39-0.55) than unburnt rangelands (0.56-0.75); indicating disturbance by wildfire would be accompanied by the loss of soil functioning. This illustrates that fire decreased soil quality, which did not recover two years after fire, probably due to the high grazing pressure and climatic conditions (i.e., longer drought periods and water limitation). Apparently, a longer period of time would be required for the complete recovery of soil quality in these semi-arid rangelands. In this study, we demonstrate that an integrated SQI would be more useful to assess post-fire soil functions than single soil properties in fire-affected rangelands of semi-arid climates.
英文关键词	Soil quality Wildfire Microbial functions Soil recovery Semi-arid rangelands
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000631043700018
WOS关键词	SHORT-TERM RESPONSES ; ORGANIC-MATTER ; LAND-USE ; MICROBIAL BIOMASS ; PRESCRIBED FIRE ; MANAGEMENT ; IMPACT ; CARBON ; INDICATORS ; CLIMATE
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/2XILL650/349800
作者单位	[Raiesi, Fayez; Pejman, Masoomeh] Shahrekord Univ, Fac Agr, Dept Soil Sci & Engn, POB 115, Shahrekord, Iran
推荐引用方式 GB/T 7714	Raiesi, Fayez,Pejman, Masoomeh. Assessment of post-wildfire soil quality and its recovery in semi-arid upland rangelands in Central Iran through selecting the minimum data set and quantitative soil quality index[J],2021,201.
APA	Raiesi, Fayez,&Pejman, Masoomeh.(2021).Assessment of post-wildfire soil quality and its recovery in semi-arid upland rangelands in Central Iran through selecting the minimum data set and quantitative soil quality index.CATENA,201.
MLA	Raiesi, Fayez,et al."Assessment of post-wildfire soil quality and its recovery in semi-arid upland rangelands in Central Iran through selecting the minimum data set and quantitative soil quality index".CATENA 201(2021).