Monitoring the impact of aerosol contamination on the drought-induced decline of gross primary productivity
文献类型：期刊论文
| 作者 | Zhang, Yao1; Li, Weizhong1; Zhu, Qiuan1; Chen, Huai2; Fang, Xiuqin1; Zhang, Tinglong1; Zhao, Pengxiang1; Peng, Changhui1,3 |
| 刊名 | INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION
 |
| 出版日期 | 2015-04 |
| 卷号 | 36期号:2015页码:30-40 |
| ISSN号 | 0303-2434 |
| 关键词 | Aerosol Cloud Atmospheric contamination Vegetation response Fire disturbance Quality flag |
| 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 |
| 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_生态研究 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 生物多样性与生态系统服务领域_生态系统恢复与生物多样性保育四川省重点实验室 |
| 作者单位 | 1.Northwest A&F Univ, Coll Forestry, Lab Ecol Forecasting & Global Change, Yangling 712100, Shaanxi, Peoples R China; 2.Chinese Acad Sci, Chengdu Inst Biol, Key Lab Mt Ecol Restorat & Bioresource Utilizat, Chengdu 610041, Peoples R China; 3.Univ Quebec, Dept Biol Sci, Ctr CEF ESCER, Montreal, PQ H3C 3P8, Canada |
| 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. |
入库方式： OAI收割
来源：成都生物研究所
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