Visible and Near-Infrared Reflectance Spectroscopy Analysis of Soils

2019 ◽  
Vol 4 (1) ◽  
pp. 0
Author(s):  
Yufeng Ge ◽  
Cristine L.S. Morgan ◽  
Nuwan K. Wijewardane
Keyword(s):  
Near Infrared ◽  
Reflectance Spectroscopy ◽  
Infrared Reflectance ◽  
Spectroscopy Analysis ◽  
Near Infrared Reflectance Spectroscopy ◽  
Near Infrared Reflectance ◽  
Infrared Reflectance Spectroscopy

Near infrared reflectance spectroscopy analysis of digestibility traits of maize stover

Euphytica ◽  
1990 ◽  
Vol 48 (1) ◽  
pp. 73-81 ◽  
Author(s):  
E. Zimmer ◽  
P. A. Gurrath ◽  
Chr. Paul ◽  
B. S. Dhillon ◽  
W. G. Pollmer ◽  
...  
Keyword(s):  
Near Infrared ◽  
Reflectance Spectroscopy ◽  
Infrared Reflectance ◽  
Spectroscopy Analysis ◽  
Near Infrared Reflectance Spectroscopy ◽  
Near Infrared Reflectance ◽  
Maize Stover ◽  
Infrared Reflectance Spectroscopy

Near-Infrared Reflectance Spectroscopy Analysis of Phosphorus in Sugarcane Leaves

2002 ◽  
Vol 94 (6) ◽  
pp. 1324-1331 ◽  
Author(s):  
Ming Chen ◽  
Barry Glaz ◽  
Robert A. Gilbert ◽  
Samira H. Daroub ◽  
Franklin E. Barton ◽  
...  
Keyword(s):  
Near Infrared ◽  
Reflectance Spectroscopy ◽  
Infrared Reflectance ◽  
Spectroscopy Analysis ◽  
Near Infrared Reflectance Spectroscopy ◽  
Near Infrared Reflectance ◽  
Infrared Reflectance Spectroscopy

scholarly journals Near Infrared Reflectance Spectroscopy Analysis to Predict Diet Composition of a Mountain Ungulate Species

Animals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1449
Author(s):  
Laia Jarque-Bascuñana ◽  
Jordi Bartolomé ◽  
Emmanuel Serrano ◽  
Johan Espunyes ◽  
Mathieu Garel ◽  
...  
Keyword(s):  
Diet Composition ◽  
Near Infrared ◽  
Reflectance Spectroscopy ◽  
Infrared Reflectance ◽  
Spectroscopy Analysis ◽  
Near Infrared Reflectance Spectroscopy ◽  
Near Infrared Reflectance ◽  
Infrared Reflectance Spectroscopy ◽  
Pyrenean Chamois ◽  
Mountain Ungulate

The diet composition of ungulates is important to understand not only their impact on vegetation, but also to understand the consequences of natural and human-driven environmental changes on the foraging behavior of these mammals. In this work, we evaluated the use of near infrared reflectance spectroscopy analysis (NIRS), a quick, economic and non-destructive method, to assess the diet composition of the Pyrenean chamois Rupicapra pyrenaica pyrenaica. Fecal samples (n = 192) were collected from two chamois populations in the French and Spanish Pyrenees. Diet composition was initially assessed by fecal cuticle microhistological analysis (CMA) and categorized into four functional groups, namely: woody, herbaceous, graminoid and Fabaceae plants. Regressions of modified partial least squares and several combinations of scattering correction and derivative treatments were tested. The results showed that models based on the second derivative processing obtained the higher determination coefficient for woody, herbaceous and graminoid plants (R2CAL, coefficient of determination in calibration, ranged from 0.86 to 0.91). The Fabaceae group, however, was predicted with lower accuracy (R2CAL = 0.71). Even though an agreement between NIRS and CMA methods was confirmed by a Bland–Altman analysis, confidence limits of agreement differed by up to 25%. Our results support the viability of fecal NIRS analysis to study spatial and temporal variations of the Pyrenean chamois’ diets in summer and winter when differences in the consumption of woody and annual plants are the greatest. This new use for the NIRS technique would be useful to assess the consequences of global change on the feeding behavior of this mountain ungulate and also in other ungulate counterparts.

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