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Remote Sens. 2010, 2(2), 416-431; doi:10.3390/rs2020416
Article

Spectral Reflectance of Wheat Residue during Decomposition and Remotely Sensed Estimates of Residue Cover

1,* , 2
, III 3
, 1
 and Jr. 1
Received: 23 December 2009; in revised form: 20 January 2010 / Accepted: 21 January 2010 / Published: 27 January 2010
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Abstract: Remotely sensed estimates of crop residue cover (fR) are required to assess the extent of conservation tillage over large areas; the impact of decay processes on estimates of residue cover is unknown. Changes in wheat straw composition and spectral reflectance were measured during the decay process and their impact on estimates of fR were assessed. Proportions of cellulose and hemicellulose declined, while lignin increased. Spectral features associated with cellulose diminished during decomposition. Narrow-band spectral residue indices robustly estimated fR, while broad-band indices were inconsistent. Advanced multi-spectral sensors or hyperspectral sensors are required to assess fR reliably over diverse agricultural landscapes.
Keywords: crop residue cover; lignin; cellulose; reflectance spectra; cellulose absorption index; decomposition; plant litter crop residue cover; lignin; cellulose; reflectance spectra; cellulose absorption index; decomposition; plant litter
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Daughtry, C.S.T.; Serbin, G.; Reeves, J.B., III; Doraiswamy, P.C.; Hunt, E.R., Jr. Spectral Reflectance of Wheat Residue during Decomposition and Remotely Sensed Estimates of Residue Cover. Remote Sens. 2010, 2, 416-431.

AMA Style

Daughtry CST, Serbin G, Reeves JB, III, Doraiswamy PC, Hunt ER, Jr. Spectral Reflectance of Wheat Residue during Decomposition and Remotely Sensed Estimates of Residue Cover. Remote Sensing. 2010; 2(2):416-431.

Chicago/Turabian Style

Daughtry, Craig S. T.; Serbin, Guy; Reeves, James B., III; Doraiswamy, Paul C.; Hunt, Earle Raymond, Jr. 2010. "Spectral Reflectance of Wheat Residue during Decomposition and Remotely Sensed Estimates of Residue Cover." Remote Sens. 2, no. 2: 416-431.


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