نتایج جستجو برای: red edge normalized difference vegetation index rendvi

تعداد نتایج: 1096411  

Journal: :Global Ecology and Biogeography 2023

Aim Theoretical, experimental and observational studies have shown that biodiversity–ecosystem functioning (BEF) relationships are influenced by functional community structure through two mutually non-exclusive mechanisms: (1) the dominance effect (which relates to traits of dominant species); (2) niche partitioning [which diversity (FD)]. Although both mechanisms been studied in plant communit...

2007
Shaokui Ge Ming Xu Gerald L. Anderson Raymond I. Carruthers

Hyperspectral remote-sensed data were obtained via a Compact Airborne Spectrographic Imager-II (CASI-II) and used to estimate leaf-area index (LAI) and aboveground biomass of a highly invasive weed species, yellow starthistle (YST). In parallel, 34 ground-based field plots were used to measure aboveground biomass and LAI to develop and validate hyperspectral-based models for estimating these me...

Journal: :Remote Sensing 2022

Controlled tile drainage (CTD) practices are a promising tool for improving water balance, quality and increasing crop yield by raising shallow groundwater level capillary rise due to flow retardation. We tested the effect of CTD on growth grain spring barley, at study site in central Bohemia using vegetation indices from unmanned aerial vehicle (UAV) imagery Sentinel-2 satellite imagery. Tile ...

2010
M. L. 1 Chu Lin and Tsai

The objective of this study is to develop a novel methodology integrating remote sensing, geographic information system technology and local spatial autocorrelation geo-computation for quick drought assessment. One group of drought indices, based on the condition of the vegetation, includes the Normalized Difference Vegetation Index (NDVI), Anomaly of Normalized Difference Vegetation Index (NDV...

Journal: :پژوهش های جغرافیای طبیعی 0
حامد ادب استادیار گروه جغرافیای طبیعی، دانشکدة جغرافیا و علوم محیطی، دانشگاه حکیم سبزواری ابولقاسم امیراحمدی دانشیار گروه جغرافیای طبیعی، دانشکدة جغرافیا و علوم محیطی، دانشگاه حکیم سبزواری آزاده عتباتی دانشجوی دکتری گروه بیولوژی دریا، دانشکدة علوم دریایی، دانشگاه علوم و فنون دریایی خرمشهر

extended abstract   introduction the most important indicator of climate in a region is vegetation community. climate can be different over large areas, because of changes in vegetation community. vegetation influences weather and climate in its surrounding areas mostly by way of evapotranspiration and albedo so they play a role in the earth’s energy balance. these effects on the earth’s energy...

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