搜索结果: 1-15 共查到“工学 forest stand”相关记录16条 . 查询时间(0.09 秒)
FOREST STAND SEGMENTATION USING AIRBORNE LIDAR DATA AND VERY HIGH RESOLUTION MULTISPECTRAL IMAGERY
lidar multispectral imagery fusion feature extraction supervised classification energy minimisation forest stand delineation tree species
2016/7/27
Forest stands are the basic units for forest inventory and mapping. Stands are large forested areas (e.g., ≥ 2 ha) of homogeneous tree species composition. The accurate delineation of forest stands is...
Relation between selected indicators of forest stand diversity and quality of timber production in managed Central European forests
assortment species diversity structural diversity timber quality
2016/4/6
The present study examines the relationship between the quality of timber production and the species and structural diversity of forest stands. The data used came from a regional forest inventory of t...
EXPERIMENT OF ESTIMATING FOREST STAND VOLUME WITH LIDAR TECHNOLOGY
Forestry Surveying LIDAR Experimental Precision
2015/12/28
In this paper, LiDAR was introduced in tree height and stand volume measure. By experiment, the average of trees' height was 8.68 meter measured by LIDAR, while the actual value was 8.67; the relative...
ACCURACY OF CROWN SEGMENTATION AND ESTIMATION OF SELECTED TREES AND FOREST STAND PARAMETERS IN ORDER TO RESOLUTION OF USED DSM AND NDSM MODELS GENERATED FROM DENSE SMALL FOOTPRINT LIDAR DATA
Airborne Scanner System Segmentation Aerial photogrammetry Comparative analysis Forestry
2015/12/23
The purpose of this study is to categorize how different surface model resolutions impact the estimation of trees and forest stands parameters: number of recognized trees, crown area, treetop location...
ESTIMATION OF FOREST STAND PARAMETERS IN DENSITY CLASSES IN ARID AND SEMI-ARID REGIONS USING LANDSAT ETM+ DATA
FOREST STAND PARAMETERS DENSITY CLASSES
2015/9/8
ESTIMATION OF FOREST STAND PARAMETERS IN DENSITY CLASSES IN ARID AND SEMI-ARID REGIONS USING LANDSAT ETM+ DATA.
An artificial tree/stand model combined with different illumination strategies for the retrieval of forest stand structural parameters
Artificial forest stands stand structure very high resolution radiative transfer
2015/9/2
A new method for the estimation of forest stand density (trees/ha), crown diameters (m) and crown closure (percentage
covered) using artificially generated reference imagery is presented. The method ...
The role of remotely sensed image texture in estimating forest stand structural complexity
Forestry Vegetation Landsat
2015/8/20
Information on the structural complexity of forest stands is required to inform conservation priorities that guide the sustainable
management of private native vegetation for multiple objectives of l...
SEMI-AUTOMATED FOREST STAND DELINEATION USING WAVELET-BASED SEGMENTATION OF VERY HIGH RESOLUTION OPTICAL IMAGERY IN FLANDERS,BELGIUM
image segmentation forest stand delineation wavelets
2015/8/19
Stand delineation estimation is one of the cornerstones of forest inventory mapping and a key element to forest management decision making. Stands are forest management units defined mainly by similar...
OBJECT BASED FOREST STAND DENSITY ESTIMATION FROM VERY HIGH RESOLUTION OPTICAL IMAGERY USING WAVELET BASED TEXTURE MEASURES
segmentation stand density forest inventory wavelets very high resolution
2015/8/19
Stand density or tree density, expressed as the number of trees per unit area, is an important forest management parameter. It is used by foresters to evaluate regeneration, to assess the effect of fo...
APPLICATION OF HYPER-SPECTRAL DATA FOR FOREST STAND MAPPING
HYPER-SPECTRAL DATA FOREST STAND MAPPING
2015/3/13
APPLICATION OF HYPER-SPECTRAL DATA FOR FOREST STAND MAPPING.
COMPARISON OF DIGITAL STAND SURFACE MODELS OF HRSC-A (HIGH RESOLUTION STEREO CAMERA -AIRBORNE)AND LASER SCANNER FOR FOREST STAND CHARACTERISTICS
Surface Model Stand Roughness Forest Inventory Tree Height Semivariogram Laser HRSC-A Dendrometer
2015/2/3
This work aims to assess differences between HRSC-A (High Resolution Stereo Scanner – Airborne) and TopoSys
laser generated tree heights and digital stand surface models. Individual tree heights in s...
LASER-SCANNING FOR THE DERIVATION OF FOREST STAND PARAMETERS
Laser scanner DEM Forest inventory Forest stand
2014/12/22
Forest stand parameters are derived from airborne laser scanner data. Data from three laser scanner flights by the company "TopoSys" are used, a winter flight with last pulse recorded and two summer f...
Mapping forest stand complexity for woodland caribou habitat assessment using multispectral airborne imagery
Stand complexity wildlife habitat vertical structure texture analysis VHR imagery
2014/11/28
The decline of the woodland caribou population is a result of their habitat loss. To conserve the habitat of the woodland caribou and protect it from extinction, it is critical to accurately character...
ESTIMATING MIXED BROADLEAVES FOREST STAND VOLUME USING DSM EXTRACTED FROM DIGITAL AERIAL IMAGES
Forest Volume, Digital Surface Model, Aerial Image, Regression Method, Hyrcanian Forests
2014/4/30
In mixed old growth broadleaves of Hyrcanian forests, it is difficult to estimate stand volume at plot level by remotely sensed data while LiDar data is absent. In this paper, a new approach has been ...
Forest stand structure influences biodiversity
biodiversity stand structure forest planning forest development phases environmental heterogeneity
2009/11/26
Healthy functioning of a forest requires biodiversity on a sufficiently high level. Its conservation has to be incorporated into forest management. Along with natural forest development every communit...