Ground reference data for sugarcane biomass estimation in Sao Paulo state, Brazil

Autor(es)

Molijn, Ramses A. ^[1] ; Iannini, Lorenzo ^[1] ; Rocha, Jansle Vieira ^[2] ; Hanssen, Ramon F. ^[1]

Afiliação do(s) autor(es)

^[1] Delft Univ Technol, Geosci & Remote Sensing, NL-2628 CN Delft - Netherlands

^[2] Univ Estadual Campinas, FEAGRI, BR-13083875 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: SCIENTIFIC DATA; v. 5, AUG 7 2018.
• Citações Web of Science: 4

Resumo

In order to make effective decisions on sustainable development, it is essential for sugarcane-producing countries to take into account sugarcane acreage and sugarcane production dynamics. The availability of sugarcane biophysical data along the growth season is key to an effective mapping of such dynamics, especially to tune agronomic models and to cross-validate indirect satellite measurements. Here, we introduce a dataset comprising 3,500 sugarcane observations collected from October 2014 until October 2015 at four fields in the Sao Paulo state (Brazil). The campaign included both non-destructive measurements of plant biometrics and destructive biomass weighing procedures. The acquisition plan was designed to maximize cost-effectiveness and minimize field-invasiveness, hence the non-destructive measurements outnumber the destructive ones. To compensate for such imbalance, a method to convert the measured biometrics into biomass estimates, based on the empirical adjustment of allometric models, is proposed. In addition, the paper addresses the precisions associated to the ground measurements and derived metrics. The presented growth dynamics and associated precisions can be adopted when designing new sugarcane measurement campaigns. (AU)

• Processo FAPESP: 13/50942-2 - Reflectância multiespectral por espectroscopia aplicada na predição de propriedades químicas de solo para o uso em agricultura de precisão em cana de açúcar
• Beneficiário: Paulo Sergio Graziano Magalhães
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOEN - Regular