干旱区生态环境知识资源中心(Arid): Ecological effects of fire severity and time since fire on the diversity partitioning, composition and niche apportionment models of post-fire understory vegetation in semi-arid oak forests of Western Iran

Arid

DOI	10.1016/j.ecoleng.2019.105694
	Ecological effects of fire severity and time since fire on the diversity partitioning, composition and niche apportionment models of post-fire understory vegetation in semi-arid oak forests of Western Iran
	Moradizadeh, Hadieh 1; Heydari, Mehdi 1; Omidipour, Reza 2; Mezbani, Arash 3; Prevosto, Bernard 4
通讯作者	Heydari, Mehdi
来源期刊	ECOLOGICAL ENGINEERING
ISSN	0925-8574
EISSN	1872-6992
出版年	2020
卷号	143
英文摘要	Monitoring and evaluating changes of the various characteristics of ecosystems after disturbances are essential to protect the services provided by each ecosystem. In the present study, different ecological characteristics including structure, composition and diversity at different post-fire times (one, five and ten years) in low and high fire severities were investigated in semi-arid oak (Quercus brantii L.) forests of western Iran. One hundred twenty-six 1.5 x 1.5 m plots were sampled in 14 patches (12 burned and 2 unburned). Alpha and beta diversity indices as well as species abundance distribution models of ecological niche apportionment were produced. The results showed that the distribution pattern of species, composition and diversity were influenced by the severity and time since fire. Based on Tokeshi's niche apportionment models, the low severity and short post-fire time generated a pattern with higher heterogeneity (MacArthur fraction; MF) than high severity and short post-fire time (dominance decay; DD). In contrast, long-term effects were less pronounced. Non-metric multidimensional scaling (NMDS) showed that there are different patterns of vegetation composition in low and high fire severities. The plant composition of the studied areas at low severity but with a longer time period since fire was more similar to the control area. In contrast, in the high fire severity, unburned and burned plots with different times since fire did not occupy overlapping areas in the ordination space. Severe fires also increased the alpha diversity at all spatial scales whereas the beta diversity only increased at the largest scale. Change of plant diversity pattern with time was more homogenous in low fire severity and more patchy in high fire severity. We concluded that the changes in the structure, composition and diversity of the post-fire vegetation were influenced both by fire severity and time since fire and that restoration actions to promote vegetation recovery should be adapted accordingly.
英文关键词	Vegetation Diversity Species abundance distribution Composition Fire Semi-arid forest
类型	Article
语种	英语
国家	Iran ; France
收录类别	SCI-E
WOS记录号	WOS:000505931400009
WOS关键词	SPECIES-ABUNDANCE MODELS ; PLANT COMMUNITY COMPOSITION ; BETA-DIVERSITY ; RELATIVE ABUNDANCE ; RANDOM ASSORTMENT ; SPATIAL-PATTERNS ; SOIL ; DISTURBANCE ; DYNAMICS ; COMPONENTS
WOS类目	Ecology ; Engineering, Environmental ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology ; Engineering
EI主题词	2020-01-15
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/312507
作者单位	1.Ilam Univ, Dept Forest Sci, Fac Agr, Ilam, Iran; 2.Ilam Univ, Dept Rangeland & Watershed Management, Fac Agr, Ilam, Iran; 3.Senior Forestry Darreh Shahr Nat Resources Off, Ilam, Iran; 4.Aix Marseille Univ, Irstea, UR RECOVER, Mediterranean Ecosyst & Risks, Aix En Provence, France
推荐引用方式 GB/T 7714	Moradizadeh, Hadieh,Heydari, Mehdi,Omidipour, Reza,et al. Ecological effects of fire severity and time since fire on the diversity partitioning, composition and niche apportionment models of post-fire understory vegetation in semi-arid oak forests of Western Iran[J],2020,143.
APA	Moradizadeh, Hadieh,Heydari, Mehdi,Omidipour, Reza,Mezbani, Arash,&Prevosto, Bernard.(2020).Ecological effects of fire severity and time since fire on the diversity partitioning, composition and niche apportionment models of post-fire understory vegetation in semi-arid oak forests of Western Iran.ECOLOGICAL ENGINEERING,143.
MLA	Moradizadeh, Hadieh,et al."Ecological effects of fire severity and time since fire on the diversity partitioning, composition and niche apportionment models of post-fire understory vegetation in semi-arid oak forests of Western Iran".ECOLOGICAL ENGINEERING 143(2020).