搜索结果: 1-11 共查到“林业基础学科 selection”相关记录11条 . 查询时间(0.14 秒)
Evaluation of transformation from even-aged to selection forest by means of Gini index
stand transformation selection system structural indices forest management
2018/3/6
We used the Gini index for evaluation of the 40-year transformation to selection forests in the Training Forest Enterprise
Masaryk Forest Křtiny (Czech Republic). The Gini index values for parti...
Impact of plot size and model selection on forest biomass estimation using airborne LiDAR: A case study of pine plantations in southern Spain
airborne laser scanning forest inventory regression survey design genetic selection methods
2017/4/6
We explored the usefulness of LiDAR for modelling and mapping the stand biomass of two conifer species in southern Spain. We used three different plot sizes and two statistical approaches (i.e. stepwi...
Forest park site selection based on a Fuzzy analytic hierarchy process framework (Case study:the Galegol Basin, Lorestan province,Iran)
suitability map weighted linear combination criteria decision-making Delphi method
2016/7/6
The aim of this study is to solve the forest park site selection problem using a Fuzzy analytic hierarchy process (FAHP) framework in the Galegol Basin, Lorestan province, Iran. The Delphi screening m...
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...
The paper deals with an experiment that was established at Opočno Experimental Station of the Forest and Game Management Research Institute (CR) in an oak small pole stage in 1952 to test whether...
Comparison and selection of growth models using the Schnute model
growth model model selection Schnute model
2015/3/3
Forest modellers have long faced the problem of selecting an appropriate mathematical model to describe
tree ontogenetic or size-shape empirical relationships for tree species. A common practice is ...
Economic aspects of the selection system of management at the Masaryk Forest Training Forest Enterprise Křtiny
selection system grading cost model yield model profitability
2015/2/6
The objective of the paper is to establish an economic result of the management of forest stand under a selection system as exemplified on a model subcompartment. A qualitative research of tree specie...
Selection of clones of Populus nigra L. ssp. nigra for resistance to Melampsora larici-populina Kleb. Rust
genetic control resistance selection Populus nigra L. Melampsora larici-populina Kleb
2015/2/6
A possibility of selection of clones of the species Populus nigra L. with higher resistance to the rust Melampsora larici-populina Kleb. was tested in a set of 29 clones of P. nigra originating from i...
An Investigation on the Allocation of Selection Weight on Growth and Wood Basic Density to Maximize Carbon Storage in the Stem of Sugi (Cryptomeria japonica D.Don) Plus-tree Clones
carbon storage clone global warming prevention index selection sugi
2009/8/27
An optimum allocation of selection weight on the traits that were related to carbon storage in the stem of sugi was investigated to establish criteria for choosing plus tree clones suitable for carbon...
Selection of Promising Jojoba（Simmondsia chinensis Link Schneider）Types in Terms of Yield and Oil Content
Jojoba Simmondsia chinensis selection yield oil content
2009/1/13
This experiment was carried out to determine the yield and oil contents of jojoba populations that were derived from a base population raised from seed in Antalya between 1999 and 2001. In the first y...
Multiple Criteria Activity Selection for Ecotourism Planning in Igneada
Ecotourism ELECTRE global environment facility multi-criteria decision making
2009/1/12
Forests have many ecotourism attractions. Ecotourism can be defined as an opportunity to promote the values in the protected areas and to finance for related stakeholders. However, ecotourism can be c...