干旱区生态环境知识资源中心(Arid): Assessment of drought frequency, severity, and duration and its impacts on vegetation greenness and agriculture production in Mediterranean dryland: A case study in Tunisia

Arid

DOI	10.1007/s11069-020-04422-w
	Assessment of drought frequency, severity, and duration and its impacts on vegetation greenness and agriculture production in Mediterranean dryland: A case study in Tunisia
	Ben Mhenni, Nada; Shinoda, Masato; Nandintsetseg, Banzragch
通讯作者	Ben Mhenni, N
来源期刊	NATURAL HAZARDS
ISSN	0921-030X
EISSN	1573-0840
英文摘要	Drought is among the highest-impact natural hazards affecting drylands around the world in a warming climate. The Mediterranean region, including Tunisia, is projected to experience the most predominant drying trends worldwide. However, a detailed regional scale study of drought for Tunisia has been limited, hampering an assessment of drought impact on the ecosystem and society. This study explored drought characteristics and its effect on vegetation greenness and agricultural productivity in three vegetation zones of Tunisia during 1982-2011, taking advantage of both meteorological and soil moisture drought indices and identifying the most appropriate index for each zone. The results revealed that meteorological droughts were short and frequent, triggering soil moisture droughts that were long-lasting and intense. The standardized precipitation index was identified as the best indicator of vegetation and agricultural droughts in the Northern forest, while the Palmer Drought Severity Index was best in the Central steppe and Southern desert (no crop data in the Southern desert). The lag-correlation analysis revealed that the response of both vegetation greenness and wheat productivity to droughts was more pronounced and had a longer significant lag in the Central steppe than in the other regions. These results suggest that arable land species (Central steppe and Southern desert), characterized by shallow roots, have a rapid response to rainfall variability when compared with forest species (Northern forest), which have deep roots allowing them an adequate supply of moisture. The region-specific indices identified here will provide a useful measure for drought monitoring and mitigation in Tunisia.
英文关键词	Meteorological drought Soil moisture drought Vegetation drought Agricultural drought Mediterranean dryland Tunisia
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000590268600003
WOS关键词	SOIL-MOISTURE ; CLIMATE-CHANGE ; METEOROLOGICAL DROUGHT ; VARIABILITY ; INDICATORS ; REGION ; WHEAT ; CLASSIFICATION ; SIMULATIONS ; PROJECTIONS
WOS类目	Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences ; Water Resources
WOS研究方向	Geology ; Meteorology & Atmospheric Sciences ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/328503
作者单位	[Ben Mhenni, Nada; Shinoda, Masato; Nandintsetseg, Banzragch] Nagoya Univ, Grad Sch Environm Studies, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648601, Japan; [Nandintsetseg, Banzragch] Informat & Res Inst Meteorol Hydrol & Environm, Ulaanbaatar 210646, Mongolia; [Nandintsetseg, Banzragch] Natl Univ Mongolia, Sch Arts & Sci, Ulaanbaatar 14201, Mongolia
推荐引用方式 GB/T 7714	Ben Mhenni, Nada,Shinoda, Masato,Nandintsetseg, Banzragch. Assessment of drought frequency, severity, and duration and its impacts on vegetation greenness and agriculture production in Mediterranean dryland: A case study in Tunisia[J].
APA	Ben Mhenni, Nada,Shinoda, Masato,&Nandintsetseg, Banzragch.
MLA	Ben Mhenni, Nada,et al."Assessment of drought frequency, severity, and duration and its impacts on vegetation greenness and agriculture production in Mediterranean dryland: A case study in Tunisia".NATURAL HAZARDS