Assessing crop residue cover using shortwave infrared reflectance
Management of crop residues is an important consideration for reducing soil erosion and increasing soil organic carbon. Current methods of measuring residue cover are inadequate for characterizing the spatial variability of residue cover over large fields. The objectives of this research were to det...
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description | Management of crop residues is an important consideration for reducing soil erosion and increasing soil organic carbon. Current methods of measuring residue cover are inadequate for characterizing the spatial variability of residue cover over large fields. The objectives of this research were to determine the spectral reflectance of crop residues and soils and to assess the limits of discrimination that can be expected in mixed scenes. Spectral reflectances of dry and wet crop residues plus three diverse soils were measured over the 400–2400 nm wavelength region. Reflectance values for scenes with varying proportions of crop residues and soils were simulated. Additional spectra of scenes with mixtures of crop residues, green vegetation, and soil were also acquired in corn, soybean, and wheat fields with different tillage treatments. The spectra of dry crop residues displayed a broad absorption feature near 2100 nm, associated with cellulose-lignin, that was absent in spectra of soils. Crop residue cover was linearly related (
r
2=0.89) to the Cellulose Absorption Index (CAI), which was defined as the relative depth of this absorption feature. Green vegetation cover in the scene attenuated CAI, but was linearly related to the Normalized Difference Vegetation Index (NDVI,
r
2=0.93). A novel method is proposed to assess soil tillage intensity classes using CAI and NDVI. Regional surveys of soil conservation practices that affect soil carbon dynamics may be feasible using advanced multispectral or hyperspectral imaging systems. |
doi_str_mv | 10.1016/j.rse.2003.10.023 |
format | Article |
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r
2=0.89) to the Cellulose Absorption Index (CAI), which was defined as the relative depth of this absorption feature. Green vegetation cover in the scene attenuated CAI, but was linearly related to the Normalized Difference Vegetation Index (NDVI,
r
2=0.93). A novel method is proposed to assess soil tillage intensity classes using CAI and NDVI. Regional surveys of soil conservation practices that affect soil carbon dynamics may be feasible using advanced multispectral or hyperspectral imaging systems.</description><identifier>ISSN: 0034-4257</identifier><identifier>EISSN: 1879-0704</identifier><identifier>DOI: 10.1016/j.rse.2003.10.023</identifier><identifier>CODEN: RSEEA7</identifier><language>eng</language><publisher>New York, NY: Elsevier Inc</publisher><subject>Agronomy. Soil science and plant productions ; Applied geophysics ; Biological and medical sciences ; Crop residue cover ; Earth sciences ; Earth, ocean, space ; Exact sciences and technology ; Fundamental and applied biological sciences. Psychology ; Generalities. Biometrics, experimentation. Remote sensing ; Internal geophysics ; Remote sensing ; Shortwave infrared reflectance ; Soil erosion ; Soil organic carbon ; Triticum aestivum</subject><ispartof>Remote sensing of environment, 2004-03, Vol.90 (1), p.126-134</ispartof><rights>2003 Elsevier Inc.</rights><rights>2004 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c387t-111476850241e0ffebd709d59ba8caf380e9276487c36e232cd09122526fc4423</citedby><cites>FETCH-LOGICAL-c387t-111476850241e0ffebd709d59ba8caf380e9276487c36e232cd09122526fc4423</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.rse.2003.10.023$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=15526545$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Daughtry, C.S.T.</creatorcontrib><creatorcontrib>Hunt, E.R.</creatorcontrib><creatorcontrib>McMurtrey, J.E.</creatorcontrib><title>Assessing crop residue cover using shortwave infrared reflectance</title><title>Remote sensing of environment</title><description>Management of crop residues is an important consideration for reducing soil erosion and increasing soil organic carbon. Current methods of measuring residue cover are inadequate for characterizing the spatial variability of residue cover over large fields. The objectives of this research were to determine the spectral reflectance of crop residues and soils and to assess the limits of discrimination that can be expected in mixed scenes. Spectral reflectances of dry and wet crop residues plus three diverse soils were measured over the 400–2400 nm wavelength region. Reflectance values for scenes with varying proportions of crop residues and soils were simulated. Additional spectra of scenes with mixtures of crop residues, green vegetation, and soil were also acquired in corn, soybean, and wheat fields with different tillage treatments. The spectra of dry crop residues displayed a broad absorption feature near 2100 nm, associated with cellulose-lignin, that was absent in spectra of soils. Crop residue cover was linearly related (
r
2=0.89) to the Cellulose Absorption Index (CAI), which was defined as the relative depth of this absorption feature. Green vegetation cover in the scene attenuated CAI, but was linearly related to the Normalized Difference Vegetation Index (NDVI,
r
2=0.93). A novel method is proposed to assess soil tillage intensity classes using CAI and NDVI. Regional surveys of soil conservation practices that affect soil carbon dynamics may be feasible using advanced multispectral or hyperspectral imaging systems.</description><subject>Agronomy. Soil science and plant productions</subject><subject>Applied geophysics</subject><subject>Biological and medical sciences</subject><subject>Crop residue cover</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Generalities. Biometrics, experimentation. Remote sensing</subject><subject>Internal geophysics</subject><subject>Remote sensing</subject><subject>Shortwave infrared reflectance</subject><subject>Soil erosion</subject><subject>Soil organic carbon</subject><subject>Triticum aestivum</subject><issn>0034-4257</issn><issn>1879-0704</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNqFkDtPwzAQgC0EEqXwA9iywJZyduzYEVNV8ZIqscBsuc4FXKVJ8TVF_HtcWokNJut8370-xi45TDjw8mY5iYQTAVCkeAKiOGIjbnSVgwZ5zEYpIXMplD5lZ0RLAK6M5iM2nRIhUejeMh_7dRaRQj1g5vstxmz4SdB7HzefbotZ6JroItYJa1r0G9d5PGcnjWsJLw7vmL3e373MHvP588PTbDrPfWH0JuecS10aBUJyhKbBRa2hqlW1cMa7pjCAldClNNoXJYpC-BoqLoQSZeOlFMWYXe_7rmP_MSBt7CqQx7Z1HfYDWWEkgFbqfxC4MaWqEsj3YLqcKJ1k1zGsXPyyHOzOql3aZNXurO6-ktVUc3Vo7si7NunofKDfQpX2VXK3xO2ew6RkGzBa8gGTrjrEJM7WffhjyjdWFIu9</recordid><startdate>20040315</startdate><enddate>20040315</enddate><creator>Daughtry, C.S.T.</creator><creator>Hunt, E.R.</creator><creator>McMurtrey, J.E.</creator><general>Elsevier Inc</general><general>Elsevier Science</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>7U6</scope><scope>C1K</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20040315</creationdate><title>Assessing crop residue cover using shortwave infrared reflectance</title><author>Daughtry, C.S.T. ; Hunt, E.R. ; McMurtrey, J.E.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c387t-111476850241e0ffebd709d59ba8caf380e9276487c36e232cd09122526fc4423</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Agronomy. Soil science and plant productions</topic><topic>Applied geophysics</topic><topic>Biological and medical sciences</topic><topic>Crop residue cover</topic><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Exact sciences and technology</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Generalities. Biometrics, experimentation. Remote sensing</topic><topic>Internal geophysics</topic><topic>Remote sensing</topic><topic>Shortwave infrared reflectance</topic><topic>Soil erosion</topic><topic>Soil organic carbon</topic><topic>Triticum aestivum</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Daughtry, C.S.T.</creatorcontrib><creatorcontrib>Hunt, E.R.</creatorcontrib><creatorcontrib>McMurtrey, J.E.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Sustainability Science Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Remote sensing of environment</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Daughtry, C.S.T.</au><au>Hunt, E.R.</au><au>McMurtrey, J.E.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Assessing crop residue cover using shortwave infrared reflectance</atitle><jtitle>Remote sensing of environment</jtitle><date>2004-03-15</date><risdate>2004</risdate><volume>90</volume><issue>1</issue><spage>126</spage><epage>134</epage><pages>126-134</pages><issn>0034-4257</issn><eissn>1879-0704</eissn><coden>RSEEA7</coden><abstract>Management of crop residues is an important consideration for reducing soil erosion and increasing soil organic carbon. Current methods of measuring residue cover are inadequate for characterizing the spatial variability of residue cover over large fields. The objectives of this research were to determine the spectral reflectance of crop residues and soils and to assess the limits of discrimination that can be expected in mixed scenes. Spectral reflectances of dry and wet crop residues plus three diverse soils were measured over the 400–2400 nm wavelength region. Reflectance values for scenes with varying proportions of crop residues and soils were simulated. Additional spectra of scenes with mixtures of crop residues, green vegetation, and soil were also acquired in corn, soybean, and wheat fields with different tillage treatments. The spectra of dry crop residues displayed a broad absorption feature near 2100 nm, associated with cellulose-lignin, that was absent in spectra of soils. Crop residue cover was linearly related (
r
2=0.89) to the Cellulose Absorption Index (CAI), which was defined as the relative depth of this absorption feature. Green vegetation cover in the scene attenuated CAI, but was linearly related to the Normalized Difference Vegetation Index (NDVI,
r
2=0.93). A novel method is proposed to assess soil tillage intensity classes using CAI and NDVI. Regional surveys of soil conservation practices that affect soil carbon dynamics may be feasible using advanced multispectral or hyperspectral imaging systems.</abstract><cop>New York, NY</cop><pub>Elsevier Inc</pub><doi>10.1016/j.rse.2003.10.023</doi><tpages>9</tpages></addata></record> |
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source | ScienceDirect Journals (5 years ago - present) |
subjects | Agronomy. Soil science and plant productions Applied geophysics Biological and medical sciences Crop residue cover Earth sciences Earth, ocean, space Exact sciences and technology Fundamental and applied biological sciences. Psychology Generalities. Biometrics, experimentation. Remote sensing Internal geophysics Remote sensing Shortwave infrared reflectance Soil erosion Soil organic carbon Triticum aestivum |
title | Assessing crop residue cover using shortwave infrared reflectance |
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