Utilizing a topographic moisture index to characterize understory vegetation patterns in the boreal forest
نویسندگان
چکیده
منابع مشابه
Post-fire species composition and regeneration of understory vegetation in a boreal forest in central Sweden
Post-fire survival, composition and regeneration of understory species in the boreal forest have shown to be affected by several factors, where consumption of the organic soil layer together with altered soil properties play important parts. There has however also been shown that the pre-fire site characteristics affect the post-fire understory vegetation. This study aimed to investigate the ef...
متن کاملSpatial heterogeneity of understory vegetation and soil in an Alaskan upland boreal forest fire chronosequence
In this study we characterized spatial heterogeneity of soil carbon and nitrogen pools, soil moisture, and soil pH of the first 15 cm of the soil profile; depth of the organic horizon; forest floor covers; and understory vegetation abundances in three sites (1999, 1987 and 1920 wildfires) of a boreal forest chronosequence of interior Alaska. We also investigated the cross-dependence between und...
متن کاملSPOT VEGETATION for characterizing boreal forest fires
The potential of the recent SPOT VEGETATION (VGT) sensor for characterizing boreal forest res was investigated. Its capability for hotspot detection and burned area mapping was assessed by analysing a series of VGT, NOAA/AVHRR, and Landsat TM images over a 1541 km2 re that occurred in May 1998, in Alberta, Canada. VGT’s 1.65mm, short-wave infrared (SWIR) channel was capable of detecting the...
متن کاملEstimating Soil Moisture in a Boreal Old Jack Pine Forest
Polarimetric Land P-band AIRSAR data, corresponding model simulations, and classification algorithms have shown that in a boreal old jack pine (OJP) stand, the principal scattering mechanism responsible for radar backscatter is the double-bounce mechanism between the tree trunks and the ground [1]. The data to be used here were taken during six flights from April to September 1994” as part of t...
متن کاملSensitivity of the Enhanced Vegetation Index (EVI) and Normalized Difference Vegetation Index (NDVI) to Topographic Effects: A Case Study in High-Density Cypress Forest
Vegetation indices play an important role in monitoring variations in vegetation.The Enhanced Vegetation Index (EVI) proposed by the MODIS Land Discipline Groupand the Normalized Difference Vegetation Index (NDVI) are both global-based vegetationindices aimed at providing consistent spatial and temporal information regarding globalvegetation. However, many environmental factors such as atmosphe...
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ژورنال
عنوان ژورنال: Forest Ecology and Management
سال: 2019
ISSN: 0378-1127
DOI: 10.1016/j.foreco.2019.05.054