Assensing crop residue cover when scene moisture conditions change

Daughtry, Craig and Quemada Saenz-Badillos, Miguel (2015). Assensing crop residue cover when scene moisture conditions change. In: "Geoscience and Remote Sensing Symposium (IGARSS), 2015 IEEE International", 26/07/2015-31/07/2015. p. 4.

Description

Title: Assensing crop residue cover when scene moisture conditions change
Author/s:
  • Daughtry, Craig
  • Quemada Saenz-Badillos, Miguel
Item Type: Presentation at Congress or Conference (Article)
Event Title: Geoscience and Remote Sensing Symposium (IGARSS), 2015 IEEE International
Event Dates: 26/07/2015-31/07/2015
Title of Book: Geoscience and Remote Sensing Symposium (IGARSS), 2015 IEEE International
Date: 2015
Subjects:
Faculty: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Department: Producción Agraria
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Crop residues protect the soil against erosion and reduce agrochemicals in runoff water. Crop residues and soils are spectrally different in the absorption features associated with cellulose and lignin. Our objectives were to: (1) assess the effects of soil and crop residue water contents on the remotely sensed estimates of crop residue cover and (2) propose a method to mitigate these effects. Reflectance spectra of diverse crops and soils were acquired in the laboratory and the analyses was extended to agricultural fields with different crop residue covers and a wide range of moisture conditions. The slope of the linear relationship with the Cellulose Absorption Index was very sensitive to moisture conditions, whereas the slope of the Shortwave Infrared Normalized Difference Residue Index was altered in a lesser extent. Water indices that provided reliable estimates of the water content could be used to estimate crop residue cover corrected by moisture conditions.

More information

Item ID: 41302
DC Identifier: http://oa.upm.es/41302/
OAI Identifier: oai:oa.upm.es:41302
Official URL: http://ieeexplore.ieee.org/document/7326866/
Deposited by: Memoria Investigacion
Deposited on: 21 Sep 2016 15:01
Last Modified: 21 Sep 2016 15:01
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