干旱区生态环境知识资源中心(Arid): Impacts of wind erosion and seasonal changes on soil carbon dioxide emission in southwestern Iran

Arid

	Impacts of wind erosion and seasonal changes on soil carbon dioxide emission in southwestern Iran
	Kamali Nadia; Siroosi Hamid; Sadeghipour Ahmad
来源期刊	干旱区科学
ISSN	1674-6767
出版年	2020
卷号	12 期号:4
英文摘要	Wind erosion is one of the main drivers of soil loss in the world,which affects 20 million hectare land of Iran.Besides the soil loss,wind erosion contributes to carbon dioxide emission from the soil into the atmosphere.The objective of this study is to evaluate monthly and seasonal changes in carbon dioxide emission in four classes i.e.,low,moderate,severe and very severe soil erosion and the interactions between air temperature and wind erosion in relation to carbon dioxide emission in the Bordekhun region,Boushehr Province,southwestern Iran.Wind erosion intensities were evaluated using IRIFR (Iran Research Institute of Forests and Ranges) model,in which four classes of soil erosion were identified.Afterward,we measured carbon dioxide emission on a monthly basis and for a period of one year using alkali traps in each class of soil erosion.Data on emission levels and erosion classes were analyzed as a factorial experiment in a completely randomized design with twelve replications in each treatment.The highest rate of emission occurred in July (4.490 g CO_2/(m~2·d)) in severely eroded lands and the least in January (0.086 g CO_2/(m~2·d)) in low eroded lands.Therefore,it is resulted that increasing erosion intensity causes an increase in soil carbon dioxide emission rate at severe erosion intensity.Moreover,the maximum amount of carbon dioxide emission happened in summer and the minimum in winter.Soil carbon dioxide emission was just related to air temperature without any relationship with soil moisture content;since changes of soil moisture in the wet and dry seasons were not high enough to affect soil microorganisms and respiration in dry areas.In general,there are complex and multiple relationships between various factors associated with soil erosion and carbon dioxide emission.Global warming causes events that lead to more erosion,which in turn increases greenhouse gas emission,and rising greenhouse gases will cause more global warming.The result of this study demonstrated the synergistic effect of wind erosion and global climate warming towards carbon dioxide emission into the atmosphere.
英文关键词	alkali trap arid areas global warming IRIFR model soil biology
类型	Article
语种	英语
收录类别	CSCD
WOS类目	Environmental Sciences & Ecology
CSCD记录号	CSCD:6832306
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/353488
推荐引用方式 GB/T 7714	Kamali Nadia,Siroosi Hamid,Sadeghipour Ahmad. Impacts of wind erosion and seasonal changes on soil carbon dioxide emission in southwestern Iran[J],2020,12(4).
APA	Kamali Nadia,Siroosi Hamid,&Sadeghipour Ahmad.(2020).Impacts of wind erosion and seasonal changes on soil carbon dioxide emission in southwestern Iran.干旱区科学,12(4).
MLA	Kamali Nadia,et al."Impacts of wind erosion and seasonal changes on soil carbon dioxide emission in southwestern Iran".干旱区科学 12.4(2020).