Drought detection and assessment with solar-induced chlorophyll fluorescence in summer maize growth period over North China Plain

doi:10.1016/j.ecolind.2019.05.017

	Drought detection and assessment with solar-induced chlorophyll fluorescence in summer maize growth period over North China Plain
	Chen, Xuejuan 1,2; Mo, Xingguo 1,3; Zhang, Yucui 4,5; Sun, Zhigang 3,6,7; Liu, Yi 1,2; Hu, Shi 1; Liu, Suxia 1,3
刊名	ECOLOGICAL INDICATORS
	2019-09-01
卷号	104 页码:347-356
关键词	Drought Solar-induced chlorophyll fluorescence Vegetation indices Crop production North China Plain
ISSN号	1470-160X
DOI	10.1016/j.ecolind.2019.05.017
通讯作者	Mo, Xingguo(moxg@igsnrr.ac.cn)
英文摘要	Drought is one of the most damaging and complicated disasters in the world. Timely monitoring of droughts over agro-ecosystem is important for reducing yield loss. The potential of satellite-borne solar-induced chlorophyll fluorescence (SIF) for drought detection and assessment were explored in this study. As denoted by the significant negative anomalies of standardized precipitation evapotranspiration index (SPEI), precipitation (PPT), soil moisture (SM) and positive anomalies of land surface temperature (LST) and air temperature difference (DT), a severe drought event was detected at summer maize growth period in 2014 over the North China Plain. In the duration of this drought, the anomalies of SIF and SIFyield (SIF normalized by absorbed photosynthetically active radiation) were negative. The regional averaged SIF and SIFyield declined 9.0% and 9.3% in July, and 11.9% and 12.5% in August, respectively, higher than those of normalized difference vegetation index (NDVI) (4.8% in July and 3.5% in August) and land surface water index (LSWI) (8.2% in July and 4.9% in August). In addition, the linear relationship between gross primary productivity (GPP) and SIF (R-2=0.85) was more significant than that between GPP and NDVI (R-2=0.60). The GPP estimated by SIF decreased by 10.6% in counties with severe drought in 2014, which was consistent with the yield reduction (9.1%) estimated by county statistical yield data. It is concluded that satellite SIF is more reliable and effective for regional drought monitoring and assessment, which can help policy-makers or farmers implement appropriate measures to mitigate the drought disasters.
资助项目	National Natural Science Foundations of China[41471026] ; National Natural Science Foundations of China[41790424]
WOS关键词	AGRICULTURAL DROUGHT ; SATELLITE MEASUREMENTS ; NET PHOTOSYNTHESIS ; CROPPING SYSTEMS ; SOIL-MOISTURE ; GREAT-PLAINS ; TIME-SCALES ; VEGETATION ; IMPACT ; INDEX
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000470966000036
资助机构	National Natural Science Foundations of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/58985]
专题	中国科学院地理科学与资源研究所
通讯作者	Mo, Xingguo
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Sino Danish Ctr, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Inst Genet & Dev Biol, Ctr Agr Resources Res, Key Lab Agr Water Resources, Shijiazhuang 050021, Hebei, Peoples R China 5.Chinese Acad Sci, Inst Genet & Dev Biol, Ctr Agr Resources Res, Hebei Key Lab Agr Water Saving, Shijiazhuang 050021, Hebei, Peoples R China 6.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 7.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, CAS Engn Lab Yellow River Delta Modern Agr, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Chen, Xuejuan,Mo, Xingguo,Zhang, Yucui,et al. Drought detection and assessment with solar-induced chlorophyll fluorescence in summer maize growth period over North China Plain[J]. ECOLOGICAL INDICATORS,2019,104:347-356.
APA	Chen, Xuejuan.,Mo, Xingguo.,Zhang, Yucui.,Sun, Zhigang.,Liu, Yi.,...&Liu, Suxia.(2019).Drought detection and assessment with solar-induced chlorophyll fluorescence in summer maize growth period over North China Plain.ECOLOGICAL INDICATORS,104,347-356.
MLA	Chen, Xuejuan,et al."Drought detection and assessment with solar-induced chlorophyll fluorescence in summer maize growth period over North China Plain".ECOLOGICAL INDICATORS 104(2019):347-356.