Monitoring the impact of aerosol contamination on the drought-induced decline of gross primary productivity

doi:10.1016/j.jag.2014.11.006

CORC > 成都生物研究所 > 中国科学院成都生物研究所 > 生物多样性与生态系统服务领域 > 中国科学院山地生态恢复与生物资源利用重点实验室

	Monitoring the impact of aerosol contamination on the drought-induced decline of gross primary productivity
	Zhang, Yao 3; Li, Weizhong 3; Zhu, Qiuan 3; Chen, Huai 2; Fang, Xiuqin 3; Zhang, Tinglong 3; Zhao, Pengxiang 3; Peng, Changhui 1,3
刊名	INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION
	2015-04
卷号	36 期号:2015 页码:30-40
关键词	Aerosol Cloud Atmospheric contamination Vegetation response Fire disturbance Quality flag
ISSN号	0303-2434
DOI	10.1016/j.jag.2014.11.006
产权排序	2
文献子类	Article
英文摘要	Southwestern China experienced a period of severe drought from September 2009 to May 2010. It led to widespread decline in the enhanced vegetation index (EVI) and gross primary productivity (GPP) in the springtime of 2010 (March to May). However, this study observed a spatial inconsistency between drought-impacted vegetation decline and the precipitation deficit. Significant aerosol loads that correspond to inconsistent areas were also observed during the drought period. After analyzing both MODIS GPP/NPP Collection 5 (C5) and the newer Collection 5.5 (C55) data, a large area observed to be experiencing GPP decline in the eastern part of the study area proved to be unreliable. Based on EVI data, after atmospherically contaminated data were screened from analysis, approximately 20% of the study area exhibited browning whereas 33% displayed no change or greening and the remaining area (approximately 47%) lacked sufficient data to document changing conditions. Correlation analysis showed that fire occurrences, aerosol optical depth, and precipitation anomalies during the two drought periods (from September to February and from March to May) all contributed to a decrease in GPP. C55 data remains vulnerable to aerosol contamination due to a much higher correlation coefficient with aerosol optical depth compared to C5 data. In the future, users of remotely sensed data should be cautious of and take into account impacts related to atmospheric contamination, even during drought periods. (C) 2014 Elsevier B.V. All rights reserved.
学科主题	Earth Sciences
URL标识	查看原文
WOS关键词	NET PRIMARY PRODUCTION ; CANADA BOREAL FORESTS ; REMOTE-SENSING DATA ; CLIMATE-CHANGE ; TREE MORTALITY ; INDUCED REDUCTION ; VEGETATION INDEX ; CARBON SINK ; TERRESTRIAL GROSS ; AMAZON FORESTS
WOS研究方向	Remote Sensing
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000348882500004
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/29812]
专题	生物多样性与生态系统服务领域_中国科学院山地生态恢复与生物资源利用重点实验室
作者单位	1.Univ Quebec, Dept Biol Sci, Ctr CEF ESCER, Montreal, PQ H3C 3P8, Canada 2.Chinese Acad Sci, Chengdu Inst Biol, Key Lab Mt Ecol Restorat & Bioresource Utilizat, Chengdu 610041, Peoples R China; 3.Northwest A&F Univ, Coll Forestry, Lab Ecol Forecasting & Global Change, Yangling 712100, Shaanxi, Peoples R China;
推荐引用方式 GB/T 7714	Zhang, Yao,Li, Weizhong,Zhu, Qiuan,et al. Monitoring the impact of aerosol contamination on the drought-induced decline of gross primary productivity[J]. INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION,2015,36(2015):30-40.
APA	Zhang, Yao.,Li, Weizhong.,Zhu, Qiuan.,Chen, Huai.,Fang, Xiuqin.,...&Peng, Changhui.(2015).Monitoring the impact of aerosol contamination on the drought-induced decline of gross primary productivity.INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION,36(2015),30-40.
MLA	Zhang, Yao,et al."Monitoring the impact of aerosol contamination on the drought-induced decline of gross primary productivity".INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION 36.2015(2015):30-40.