搜索结果: 16-30 共查到“知识库 森林地理学”相关记录75条 . 查询时间(2.265 秒)
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...
GIS APPROACH TO LANDSCAPE EVALUATION BASED ON SMALL WATERSHED UNITS
GIS Ecosystem Landscape Land Use Vegetation
2015/7/29
This research was implemented in Miyagi Prefecture, northeastern Japan. In recent years, the rich biodiversity of this prefecture has
been decreasing rapidly due to loss of forest and traditional co...
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...
Estimation of leaf area index and assessment of its allometric equations in oak forests: Northern Zagros, Iran
allometric relationships destructive sampling leaf area index Quercus libani Oliv. specific leaf area
2015/4/14
The focus of the present study is the estimation of leaf area index (LAI) and the assessment of allometric equations for predicting the leaf area of Lebanon oaks (Quercus libani Oliv.) in Iran’s north...
Variation of wood density in Turkish hazel (Corylus colurna L.) grown in the Czech Republic
Corylus colurna L wood density variability
2015/4/14
The aim of this study was to investigate the wood density of Turkish hazel (Corylus colurna L.), an introduced species in the Czech Republic. Sample trees coming from a Czech site were tested for basi...
Assessing the relationship of slope and runoff volume on skid trails (Case study: Nav 3 district)
bulk density Nav district runoff skid trail water diversion
2015/4/14
The effect of slope on runoff volume was evaluated on skid trails in the natural forest in the north of Iran. The objective of this study was to determine the relationship between runoff volume and sl...
Evaluation of twenty-years-old pedunculate and sessile oak provenance trial
Czech Republic evaluation pedunculate oak provenance research sessile oak variability in height and diameter growth
2015/3/27
This paper deals with the measurement and evaluation of pedunculate and sessile oaks on five provenance trial plots located in the forest regions Západočeská pahorkatina, Jihočeská pánev, Ho...
Effects of selection and shelterwood method on quality and quantity of trees along skid trails in beech (Fagus orientalis, Lipsky) forests
skid trail shelterwood method selection system beech forests tree quality tree quantity
2015/3/27
The effects of two silvicultural methods on quality and quantity of forest trees (along skid trails) were studied. The aim of this study was to compare the effects of shelterwood and selection methods...
Site classification vs. wood production: a case study based on Silver fir growth dynamics in the Western Carpathians
Western Carpathians site classification production potential Silver fir growth model
2015/3/27
We analysed wood production on an example of Silver fir growth ability within site units defined in the site classification that is currently used in the Western Carpathians. It has arisen as a very i...