Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1109/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
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ISSN | 1939-1404 |
EISSN | 2151-1535 |
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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