Arid
DOI10.1109/JSTARS.2015.2504262
Early Maize Yield Forecasting From Remotely Sensed Temperature/Vegetation Index Measurements
Holzman, Mauro E.1; Rivas, Raul E.2
通讯作者Holzman, Mauro E.
来源期刊IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
ISSN1939-1404
EISSN2151-1535
出版年2016
卷号9期号:1页码:507-519
英文摘要

High and low soil moisture availability is one of the main limiting factors-affecting crops productivity. Thus, determination of the relationship between them is crucial for food security and support importing-exporting strategies. The aim of this work was to analyze the aptitude of temperature vegetation dryness index (TVDI) to forecast maize yield. MODIS/AQUA enhanced vegetation index and land surface temperature (LST) at 1 km were used to calculate TVDI and maize yield over a large agricultural area of Argentine Pampas. The comparison between TVDI and official yield statistics was carried out to derive regression models in two agro-climatic zones, obtaining linear and quadratic adjustments. The models account for between 73% and 83% of yield variability, with the best prediction in the humid zone. The RMSE values ranged from 14% to 19% of average yield. The bias showed a slightly higher difference between predicted and observed yield data in semi-arid zone. The models showed aptitude to estimate yield with reasonable accuracy 8-12 weeks before harvest. In addition, the TVDI-maize yield relationship and the impact of submonthly water stress were evaluated at field scale using yield measurements to ensure the analysis on maize. The highest R-2 (0.61) was obtained using monthly values suggesting that the entire critical stage should be taken into account for yield forecasting. Although these results would not be directly extrapolated to other agricultural regions in the world, the proposed model is promising for forecasting spatial yield in other regions with poor data coverage several weeks before harvest.


英文关键词Optical-thermal soil moisture stress index temperature vegetation dryness index (TVDI)
类型Article
语种英语
国家Argentina
收录类别SCI-E
WOS记录号WOS:000370541400049
WOS关键词NDVI TIME-SERIES ; SOIL-MOISTURE ; CROP YIELD ; SURFACE-TEMPERATURE ; SOYBEAN YIELDS ; VEGETATION ; CORN ; PREDICTION ; MODEL ; ASSIMILATION
WOS类目Engineering, Electrical & Electronic ; Geography, Physical ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向Engineering ; Physical Geography ; Remote Sensing ; Imaging Science & Photographic Technology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/193528
作者单位1.Inst Hidrol Llanuras Dr Eduardo J Usunoff, Consejo Nacl Invest Cientif & Tecn, Azul B7300, Buenos Aires, DF, Argentina;
2.Inst Hidrol Llanuras Dr Eduardo J Usunoff, Comis Invest Cientif prov Buenos Aires, Tandil B7000, Buenos Aires, DF, Argentina
推荐引用方式
GB/T 7714
Holzman, Mauro E.,Rivas, Raul E.. Early Maize Yield Forecasting From Remotely Sensed Temperature/Vegetation Index Measurements[J],2016,9(1):507-519.
APA Holzman, Mauro E.,&Rivas, Raul E..(2016).Early Maize Yield Forecasting From Remotely Sensed Temperature/Vegetation Index Measurements.IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING,9(1),507-519.
MLA Holzman, Mauro E.,et al."Early Maize Yield Forecasting From Remotely Sensed Temperature/Vegetation Index Measurements".IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING 9.1(2016):507-519.
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