Responses of vegetation spring phenology to climatic factors in Xinjiang, China

Understanding the response of vegetation spring phenology to climatic factors in arid regions is crucial for projecting the land-climate interactions of arid ecosystems under climate change. The Xinjiang region, an important part of northern China with complex climatic features, was selected as a ca...

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Autores principales:	Cheng Li, Ranghui Wang, Xuefeng Cui, Fang Wu, Yu Yan, Qing Peng, Zhonghua Qian, Yang Xu
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Spring phenology Climatic factors NDVI PLS Xinjiang Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/34abb6b6316e4f20a5d3225a5fad1c8a
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spelling	oai:doaj.org-article:34abb6b6316e4f20a5d3225a5fad1c8a2021-12-01T04:41:42ZResponses of vegetation spring phenology to climatic factors in Xinjiang, China1470-160X10.1016/j.ecolind.2020.107286https://doaj.org/article/34abb6b6316e4f20a5d3225a5fad1c8a2021-05-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X20312280https://doaj.org/toc/1470-160XUnderstanding the response of vegetation spring phenology to climatic factors in arid regions is crucial for projecting the land-climate interactions of arid ecosystems under climate change. The Xinjiang region, an important part of northern China with complex climatic features, was selected as a case study. We investigated the impact of temperature, precipitation, and solar radiation on the start of the vegetation growing season (SOS) using a long-term series of the normalized difference vegetation index, climate data from 1982 to 2014, and the partial least squares regression (PLS) method. The primary findings were following: (1) the regional scaling of the mean SOS ranged from 95 to 113 day of year (DOY) and showed distinct spatial heterogeneity for different vegetation types. The relative percentage of the area that exhibited advanced SOS (65.80%) was larger than that of the area that exhibited delayed SOS (34.20%), with a regional advancing tendency of 0.19 days per year during the study period. Different vegetation types showed an advancing SOS, which shifted to delaying after 2005. (2) Temperature significantly affected the SOS for various vegetation types. Generally, the warming spring temperatures led to advanced SOS, whereas reduced warming in spring after 2005 reversed the SOS trends. The higher solar radiation occurring from late winter to spring also contributed to the advance in the SOS. Conversely, the increasing precipitation during this period caused a delay in the SOS. These results can provide a useful reference for improving the vegetation phenology models of arid regions.Cheng LiRanghui WangXuefeng CuiFang WuYu YanQing PengZhonghua QianYang XuElsevierarticleSpring phenologyClimatic factorsNDVIPLSXinjiangEcologyQH540-549.5ENEcological Indicators, Vol 124, Iss , Pp 107286- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Spring phenology Climatic factors NDVI PLS Xinjiang Ecology QH540-549.5
spellingShingle	Spring phenology Climatic factors NDVI PLS Xinjiang Ecology QH540-549.5 Cheng Li Ranghui Wang Xuefeng Cui Fang Wu Yu Yan Qing Peng Zhonghua Qian Yang Xu Responses of vegetation spring phenology to climatic factors in Xinjiang, China
description	Understanding the response of vegetation spring phenology to climatic factors in arid regions is crucial for projecting the land-climate interactions of arid ecosystems under climate change. The Xinjiang region, an important part of northern China with complex climatic features, was selected as a case study. We investigated the impact of temperature, precipitation, and solar radiation on the start of the vegetation growing season (SOS) using a long-term series of the normalized difference vegetation index, climate data from 1982 to 2014, and the partial least squares regression (PLS) method. The primary findings were following: (1) the regional scaling of the mean SOS ranged from 95 to 113 day of year (DOY) and showed distinct spatial heterogeneity for different vegetation types. The relative percentage of the area that exhibited advanced SOS (65.80%) was larger than that of the area that exhibited delayed SOS (34.20%), with a regional advancing tendency of 0.19 days per year during the study period. Different vegetation types showed an advancing SOS, which shifted to delaying after 2005. (2) Temperature significantly affected the SOS for various vegetation types. Generally, the warming spring temperatures led to advanced SOS, whereas reduced warming in spring after 2005 reversed the SOS trends. The higher solar radiation occurring from late winter to spring also contributed to the advance in the SOS. Conversely, the increasing precipitation during this period caused a delay in the SOS. These results can provide a useful reference for improving the vegetation phenology models of arid regions.
format	article
author	Cheng Li Ranghui Wang Xuefeng Cui Fang Wu Yu Yan Qing Peng Zhonghua Qian Yang Xu
author_facet	Cheng Li Ranghui Wang Xuefeng Cui Fang Wu Yu Yan Qing Peng Zhonghua Qian Yang Xu
author_sort	Cheng Li
title	Responses of vegetation spring phenology to climatic factors in Xinjiang, China
title_short	Responses of vegetation spring phenology to climatic factors in Xinjiang, China
title_full	Responses of vegetation spring phenology to climatic factors in Xinjiang, China
title_fullStr	Responses of vegetation spring phenology to climatic factors in Xinjiang, China
title_full_unstemmed	Responses of vegetation spring phenology to climatic factors in Xinjiang, China
title_sort	responses of vegetation spring phenology to climatic factors in xinjiang, china
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/34abb6b6316e4f20a5d3225a5fad1c8a
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_version_	1718405805148995584

Responses of vegetation spring phenology to climatic factors in Xinjiang, China

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