Evaluation of the influence of ENSO on tropical vegetation in long time series using a new indicator

With the intensification of extreme weather events in recent years, the drought, flood and fire caused by super El Niño - Southern Oscillation (ENSO) led to lot’s of vegetation destruction in multiple tropical regions. However, little is known about the influence of ENSO on tropical vegetation of lo...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Yibo Yan, Kebiao Mao, Xinyi Shen, Mengmeng Cao, Tongren Xu, Zhonghua Guo, Qing Bao
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Tropical vegetation ENSO NDVI Influence Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/a9ec3c5ab9034d70a823b084357b3165
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:a9ec3c5ab9034d70a823b084357b3165
record_format	dspace
spelling	oai:doaj.org-article:a9ec3c5ab9034d70a823b084357b31652021-12-01T04:54:50ZEvaluation of the influence of ENSO on tropical vegetation in long time series using a new indicator1470-160X10.1016/j.ecolind.2021.107872https://doaj.org/article/a9ec3c5ab9034d70a823b084357b31652021-10-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21005379https://doaj.org/toc/1470-160XWith the intensification of extreme weather events in recent years, the drought, flood and fire caused by super El Niño - Southern Oscillation (ENSO) led to lot’s of vegetation destruction in multiple tropical regions. However, little is known about the influence of ENSO on tropical vegetation of long time series (especially after 2015) and the influence’s internal mechanism. Based on generating the long-term vegetation data (combined multiple satellite sensors data), a new index (Vegetation - ENSO response index, VERI) was created to evaluate the influence of ENSO on vegetation more accurately and comprehensively, which considering several factors including the correlation between ENSO index and NDVI anomaly, the change amplitude of NDVI in ENSO events and the duration time and lag time of the influence of ENSO on vegetation. The analysis indicated that tropical vegetation exhibited a fluctuating increase state with an overall increasing range of 4.46%, and the greening trends were the most significant and dramatical in the Indian Peninsula (0.0031/y), the coast of the Gulf of Guinea (0.0026/y), and the Amazon River estuary (0.0025/y). ENSO can lead to significant enhancement or degradation of vegetation in at least 10% of tropical regions, especially in East Africa (\|VERI\| =0.16), Southern Africa (\|VERI\|=0.18) and Indonesia (\|VERI\|=0.14). Among them, shrubs are the most widely affected areas (32.08%) due to limited water resources. ENSO's greening effect is mainly accomplished by increasing precipitation (warm/r = 0.166, cold/r = 0.249) and its degradation effect is more closely related to temperature increase (warm/r = −0.374, cold/r = −0.101). The change of VERI in different periods indicated that the ENSO's influence on vegetation has changed after 2000, which meant the improving effect of cold events on tropical vegetation was weakened, while the inhibiting effect was enhanced. These findings can help us better understand and respond to the effects of ENSO on tropical vegetation in the context of global change.Yibo YanKebiao MaoXinyi ShenMengmeng CaoTongren XuZhonghua GuoQing BaoElsevierarticleTropical vegetationENSONDVIInfluenceEcologyQH540-549.5ENEcological Indicators, Vol 129, Iss , Pp 107872- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Tropical vegetation ENSO NDVI Influence Ecology QH540-549.5
spellingShingle	Tropical vegetation ENSO NDVI Influence Ecology QH540-549.5 Yibo Yan Kebiao Mao Xinyi Shen Mengmeng Cao Tongren Xu Zhonghua Guo Qing Bao Evaluation of the influence of ENSO on tropical vegetation in long time series using a new indicator
description	With the intensification of extreme weather events in recent years, the drought, flood and fire caused by super El Niño - Southern Oscillation (ENSO) led to lot’s of vegetation destruction in multiple tropical regions. However, little is known about the influence of ENSO on tropical vegetation of long time series (especially after 2015) and the influence’s internal mechanism. Based on generating the long-term vegetation data (combined multiple satellite sensors data), a new index (Vegetation - ENSO response index, VERI) was created to evaluate the influence of ENSO on vegetation more accurately and comprehensively, which considering several factors including the correlation between ENSO index and NDVI anomaly, the change amplitude of NDVI in ENSO events and the duration time and lag time of the influence of ENSO on vegetation. The analysis indicated that tropical vegetation exhibited a fluctuating increase state with an overall increasing range of 4.46%, and the greening trends were the most significant and dramatical in the Indian Peninsula (0.0031/y), the coast of the Gulf of Guinea (0.0026/y), and the Amazon River estuary (0.0025/y). ENSO can lead to significant enhancement or degradation of vegetation in at least 10% of tropical regions, especially in East Africa (\|VERI\| =0.16), Southern Africa (\|VERI\|=0.18) and Indonesia (\|VERI\|=0.14). Among them, shrubs are the most widely affected areas (32.08%) due to limited water resources. ENSO's greening effect is mainly accomplished by increasing precipitation (warm/r = 0.166, cold/r = 0.249) and its degradation effect is more closely related to temperature increase (warm/r = −0.374, cold/r = −0.101). The change of VERI in different periods indicated that the ENSO's influence on vegetation has changed after 2000, which meant the improving effect of cold events on tropical vegetation was weakened, while the inhibiting effect was enhanced. These findings can help us better understand and respond to the effects of ENSO on tropical vegetation in the context of global change.
format	article
author	Yibo Yan Kebiao Mao Xinyi Shen Mengmeng Cao Tongren Xu Zhonghua Guo Qing Bao
author_facet	Yibo Yan Kebiao Mao Xinyi Shen Mengmeng Cao Tongren Xu Zhonghua Guo Qing Bao
author_sort	Yibo Yan
title	Evaluation of the influence of ENSO on tropical vegetation in long time series using a new indicator
title_short	Evaluation of the influence of ENSO on tropical vegetation in long time series using a new indicator
title_full	Evaluation of the influence of ENSO on tropical vegetation in long time series using a new indicator
title_fullStr	Evaluation of the influence of ENSO on tropical vegetation in long time series using a new indicator
title_full_unstemmed	Evaluation of the influence of ENSO on tropical vegetation in long time series using a new indicator
title_sort	evaluation of the influence of enso on tropical vegetation in long time series using a new indicator
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/a9ec3c5ab9034d70a823b084357b3165
work_keys_str_mv	AT yiboyan evaluationoftheinfluenceofensoontropicalvegetationinlongtimeseriesusinganewindicator AT kebiaomao evaluationoftheinfluenceofensoontropicalvegetationinlongtimeseriesusinganewindicator AT xinyishen evaluationoftheinfluenceofensoontropicalvegetationinlongtimeseriesusinganewindicator AT mengmengcao evaluationoftheinfluenceofensoontropicalvegetationinlongtimeseriesusinganewindicator AT tongrenxu evaluationoftheinfluenceofensoontropicalvegetationinlongtimeseriesusinganewindicator AT zhonghuaguo evaluationoftheinfluenceofensoontropicalvegetationinlongtimeseriesusinganewindicator AT qingbao evaluationoftheinfluenceofensoontropicalvegetationinlongtimeseriesusinganewindicator
_version_	1718405681915101184

Evaluation of the influence of ENSO on tropical vegetation in long time series using a new indicator

Ejemplares similares