Using Canopy Hyperspectral Reflectance to Predict Root Biomass Carbon and Nitrogen Content
نویسندگان
چکیده
منابع مشابه
Hyperspectral Assessment of Canopy Nitrogen Content in Rice - Comparative Analysis Using Multiple Datasets -
Assessment of canopy nitrogen content (CNC) is an important basis for growth diagnosis, precision management, and yield prediction in rice crop. High-resolution spectral reflectance measurement (Hyperspectra) has been suggested to have significant roles in assessment of crop variables, especially biochemical components (e.g., chlorophyll content) and physiological functioning (e.g., light use e...
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Plant canopy nitrogen (N) is associated with ecosystem processes such as photosynthetic and aboveground net primary production, particularly in forested ecosystems. Sagebrush N is directly relatable to wildlife nutritional status and contributes to assessments of habitat quality, productivity, plant / soil water dynamics and controls on canopy photosynthesis. Hyperspectral remote sensing studie...
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Hyperspectral remote sensing has demonstrated great potential for accurate retrieval of canopy water content (CWC). This CWC is defined by the product of the leaf equivalent water thickness (EWT) and the leaf area index (LAI). In this paper, in particular the spectral information provided by the canopy water absorption feature at 970 nm for estimating and predicting CWC was studied using a mode...
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the main source of C in maintaining soil organic matter. The amount of C and N supplied by roots can be signifiManagement practices may influence cotton (Gossypium hirsutum L.) cant for maintaining or improving soil organic matter. and sorghum [Sorghum bicolor (L.) Moench)] root C and N inputs for As much as 7 to 43% of the total aboveground and belowimproving soil quality. We examined the infl...
متن کاملNitrogen cycling, forest canopy reflectance, and emergent properties of ecosystems.
In Ollinger et al. (1), we reported that mass-based concentrations of nitrogen in forest canopies (%N) are positively associated with whole-canopy photosynthetic capacity and canopy shortwave albedo in temperate and boreal forests, the latter result stemming from a positive correlation between %N and canopy near infrared (NIR) reflectance. This finding is intriguing because a functional link be...
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ژورنال
عنوان ژورنال: Environment and Natural Resources Research
سال: 2018
ISSN: 1927-0496,1927-0488
DOI: 10.5539/enrr.v8n1p84