Relationship between Mean Free Path and Leaf Area in Boreal Forest Canopies
نویسندگان
چکیده
منابع مشابه
Investigating relationships between Landsat ETM+ sensor data and leaf area index in a boreal conifer forest
The aim of this paper is to investigate the feasibility of using Landsat ETM+ data for the determination of leaf area index (LAI). The investigation is prompted by the need for obtaining spatially distributed data on LAI to be used as input for carbon modelling of northern boreal forests. Detailed field data have been collected in a coniferous forest area in Uppland, central Sweden, dominated b...
متن کاملMeasurements of leaf orientation, light distribution and sunlit leaf area in a boreal aspen forest
A new instrument called a Multiband Vegetation Imager (MVI) (Kucharik et al., 1997), which uses a 16-bit charge-coupled device (CCD) camera and ®lter exchange mechanism to capture 2-band (visible and near-infrared) image pairs of plant canopies, has been used to measure the light distribution over sunlit leaves and indirectly infer leaf area index (LAI), sunlit LAI and leaf angle distribution (...
متن کاملBoreal Forest Leaf Area Index (lai) Estimation Using Wide Optics Airborne Winter Photos
The boreal zone land cover has a very significant influence on the northern hemisphere albedo and is an important component of the northern hemisphere carbon budget [1, 2] and is sensitive to changes in local and global climate [3]. Forest transition zones react to changes in mean temperature and moisture conditions in the long term [4] whereas changes in, for example, forest leaf area index (L...
متن کاملLeaf Area Index (LAI) Estimation of Boreal Forest Using Wide Optics Airborne Winter Photos
A new simple airborne method based on wide optics camera is developed for leaf area index (LAI) estimation in coniferous forests. The measurements are carried out in winter, when the forest floor is completely snow covered and thus acts as a light background for the hemispherical analysis of the images. The photos are taken automatically and stored on a laptop during the flights. The R value of...
متن کاملMonitoring boreal forest leaf area index across a Siberian burn chronosequence: a MODIS validation study
X. CHEN*{, L. VIERLING{", D. DEERING{ and A. CONLEY§ {Institute of Atmospheric Sciences, South Dakota School of Mines and Technology, Rapid City, South Dakota, 57701, USA {NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA §SSAI, NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA "Current address: College of Natural Resources, University of Idaho, Moscow, Idaho, 8384...
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ژورنال
عنوان ژورنال: Journal of Forest Planning
سال: 2002
ISSN: 1341-562X,2189-8316
DOI: 10.20659/jfp.8.1_9