气候变化领域集成服务门户(CCPortal): ASSIMILATION OF FIELD MEASURED LAI INTO CROP GROWTH MODEL BASED ON SCE-UA OPTIMIZATION ALGORITHM

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DOI	10.1109/IGARSS.2009.5417822
	ASSIMILATION OF FIELD MEASURED LAI INTO CROP GROWTH MODEL BASED ON SCE-UA OPTIMIZATION ALGORITHM
	Ren, Jianqiang; Yu, Fushui; Du, Yunyan; Qin, Jun; Chen, Zhongxin
通讯作者	Chen, ZX (通讯作者)
发表日期	2009
ISSN	2153-6996
起始页码	1875
结束页码	+
英文摘要	Assimilating external data into crop growth model to Improve accuracy of crop growth monitoring and yield estimation has been being a research focus in recent years In this paper, the shuffled complex evolution (SCE-UA) global optimization algorithm was used to assimilate field measured LAI into EPIC model to simulate yield, sowing date and nitrogen fertilizer application amount of summer maize in Huanghuaihai Plain in China. The results showed that RMSE between simulated yield and field measured yield of summer maize was 0.84 t ha(-1) and the R-2 was only 0 033 without external data assimilation. While the performances of EPIC model of simulating yield, sowing date and nitrogen fertilizer application amount of summer maize was better through assimilating field measured LAI into the EPIC model. The RMSE of between simulated yield and field measured yield of summer maize was 0.60 t ha(-1) and the R-2 was 0.5301. The relative error between simulated sowing date and real sowing date of summer maize was 2 28% On the simulation of nitrogen fertilizer application rate, the relative error was -6 00% compared with local statistical data These above accuracy could meet the need of crop growth monitoring and yield estimation at regional scale. It proved that assimilating field measured LAI Into crop growth model based on SCE-UA optimization algorithm to monitor crop growth and estimate crop yield was feasible
关键词	GLOBAL OPTIMIZATION
英文关键词	Crop growth model; EPIC; Data assimilation; Optimization algorithm; LAI; Yield estimation
语种	英语
WOS研究方向	Geology ; Remote Sensing
WOS类目	Geosciences, Multidisciplinary ; Remote Sensing
WOS记录号	WOS:000281054101146
来源期刊	2009 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOLS 1-5
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257689
推荐引用方式 GB/T 7714	Ren, Jianqiang,Yu, Fushui,Du, Yunyan,et al. ASSIMILATION OF FIELD MEASURED LAI INTO CROP GROWTH MODEL BASED ON SCE-UA OPTIMIZATION ALGORITHM[J]. 中国科学院青藏高原研究所,2009.
APA	Ren, Jianqiang,Yu, Fushui,Du, Yunyan,Qin, Jun,&Chen, Zhongxin.(2009).ASSIMILATION OF FIELD MEASURED LAI INTO CROP GROWTH MODEL BASED ON SCE-UA OPTIMIZATION ALGORITHM.2009 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOLS 1-5.
MLA	Ren, Jianqiang,et al."ASSIMILATION OF FIELD MEASURED LAI INTO CROP GROWTH MODEL BASED ON SCE-UA OPTIMIZATION ALGORITHM".2009 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOLS 1-5 (2009).