State-space approach for the analysis of soil water content and temperature in a sugarcane crop

Scientia Agricola

Durval Dourado-neto¹  Luís Carlos Timm²  Julio Cesar Martins De Oliveira²  Klaus Reichardt²  Osny Oliveira Santos Bacchi²  Tania Toyomi Tominaga²  Fabio Augusto Meira Cássaro² 

[1] ,Universidade de São Paulo CENA Laboratório de Física do SoloPiracicaba SP

关键词: soil water;    soil temperature;    state-space;    transect;    água no solo;    temperatura do solo;    estado-espaço;    transeção;   

DOI  :  10.1590/S0103-90161999000500025

来源: SciELO

【 摘 要 】

The state-space approach is used to describe surface soil water content and temperature behaviour, in a field experiment in which sugarcane is submitted to different management practices. The treatments consisted of harvest trash mulching, bare soil, and burned trash, all three in a ratoon crop, after first cane harvest. One transect of 84 points was sampled, meter by meter, covering all treatments and borders. The state-space approach is described in detail and the results show that soil water contents measured along the transect could successfully be estimated from water content and temperature observations made at the first neighbour.

【 授权许可】

CC BY   
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