搜索结果: 1-15 共查到“森林地理学 forest”相关记录22条 . 查询时间(0.156 秒)
Monitoring geometric properties of an existing forest road using airborne Lidar data
vertical profile cross section horizontal profiles total station roadbed
2018/3/6
Accurate information about geometric properties of a forest road is essential for the sustainable forestry and transportation
safety. In this study the ability of airborne Lidar in detecting vertical...
Predicting the earthwork width and determining the annual growth loss due to forest road construction using artificial neural network and ArcGIS
area of road earthwork hillside slope roadside rock share
2016/8/2
The area of forest destruction as well as the annual growth loss due to road construction before constructing a road was predicted. To do this, road cross sections of 88 points along the 10 km propose...
A COMPARISON OF OBJECT-BASED AND PIXEL-BASED APPROACHES TO ESTIMATE LIDAR-MEASURED FOREST CANOPY HEIGHT USING QUICKBIRD IMAGERY
Canopy height Geographic object-based image analysis
2015/11/16
Canopy surface height (CSH) is a significant forest biophysical parameter to estimate above-ground biomass and carbon content.
High- spatial resolution optical remotely sensed data have shown promis...
FOREST TYPES CLASSIFICATION USING ETM+ DATA IN THE NORTH OF IRAN/ COMPARISON OF OBJECT-ORIENTED WITH PIXEL-BASED CLASSIFICATION TECHNIQUES
Forestry Mapping Segmentation Comparison Classification Method Object Pixel
2015/7/30
Different classification methods have been used for classification of satellite data by researchers. Addition to current classification,
pixel-based methods, developments in segmentation and object ...
PROTECTION FOREST REVISION AND MANAGEMENT USING GIS AND DIGITAL SURVEYING TECHNIQUES
Forestry GIS Surveying Revision Management Orthoimage Digital Web based
2015/7/29
The protection forest system for Taipei City, the capital of Taiwan, was established in 1907. The social and natural environment had
changed drastically in the past few decades, however, the maps an...
DEVELOPMENT OF EFFECTIVE INFORMATION SYSTEMS SUPPORTING MONITORING AND CERTIFICATION PROCESS OF PRODUCTION FOREST IN INDONESIA: CONCEPT AND PROGRESS
Monitoring Forest Certification Remote Sensing GIS illegal logging
2015/7/29
COMPARISON OF SPOT5 AND LANDSAT7 FOR FOREST AREA MAPPING
Forestry SPOT5, Landsat Mapping Comparison
2015/7/29
The main purpose of this study is comparison of the potential of the Landsat7 ETM+ data and SPOT5-HRG image
for forest area mapping at the scale of 1:25000 in northern of Iran. A Landsat7-ETM+ image...
INVESTIGATION OF THE POSSIBILITY OF FOREST TYPE MAPPING IN ARID AND SEMI-ARID REGIONS USING LANDSAT ETM+ DATA
Forest Classification Accuracy Landsat Fusion Quality Soil Vegetation
2015/7/29
Landsat ETM+ data from the National Park of Khabr in Kerman province, dating May 2000, were analyzed to investigate the
possibility of forest type mapping in arid and semi-arid regions.Quality evalu...
FOREST CANOPY DENSITY MONITORING, USING SATELLITE IMAGES
Remote Sensing Forestry Change Detection Landsat Multispectral Thermal
2015/7/29
The increasing use of satellite Remote Sensing for civilian use has proved to be the most cost effective means of mapping and
monitoring environmental changes in terms of vegetation and non-renewabl...
Modelling and analyzing the surface fire behaviour in Hyrcanian forest of Iran
burned area forest fire litter thickness
2015/5/5
The purpose of this study was to assess the forest fire behaviour and investigate the impact of different
parameters on the spread of surface fire in the Hyrcanian forest of Iran. Surface fire was s...
Application and limitations of growth models for silvicultural purposes in heterogeneously structured forest in Sweden
continuous cover forestry heterogeneous forest structure forest growth stand development growth models Heureka Sweden
2015/4/24
The paper addresses the problem of estimating future stand development in heterogeneously structured forests in Sweden; specifically, multi-layered spruce stands and mature pine stands with advanced s...
Natural abundance of 15N of a spruce forest ecosystem under acid rain and manipulated clean rain field conditions
acid rain clean rain δ15N stable isotopes nitrogen precipitation throughfall seepage water needles litter spruce forest
2015/3/12
We analysed stable isotopes of N in a spruce forest under ambient rainfall (no further manipulation of the atmospheric input) and clean rain application (10 years of reduced inorganic N- and acid-cons...
Soil aspects of forest site revitalization after windrow cultivation by heavy mechanization on the Krušné hory Mts. Plateau
Kruš né hory Mts topsoil horizon site preparation
2015/3/3
The reflection of soil properties in the health condition of forest stands is connected with synergy of
stressors that influence the forest existence. In the Krušné hory Mts. (Czech ...
The Forest History Society (FHS) is a 501(c)3 nonprofit educational institution located in Durham, North Carolina, that links the past to the future by identifying, collecting, preserving, interpretin...
Gauging what it takes to heal a disaster-ravaged forest（图）
disaster-ravaged foresi Gauging
2014/3/20
Recovering from natural disasters usually means rebuilding infrastructure and reassembling human lives. Yet ecologically sensitive areas need to heal, too, and scientists are pioneering new methods to...