搜索结果: 1-14 共查到“林学 scale”相关记录14条 . 查询时间(1.343 秒)
Fine scale plant community assessment in coastal meadows using UAV based multispectral data
Coastal plant communities UAV Vegetation indices Random forests Unsupervised classification
2024/1/19
Coastal meadows worldwide are subjected to habitat degradation due to abandonment, intensification and the impacts of global change. In order to protect and restore these habitats and ensure the suppl...
Prediction of plant species occurrence as affected by nitrogen deposition and climate change on a European scale
Biodiversity Climate change Nitrogen deposition Precipitation Soil EUNIS
2023/12/19
Plant species occurrence in Europe is affected by changes in nitrogen deposition and climate. Insight into potential future effects of those changes can be derived by a model approach based on field-b...
Classifying wetland-related land cover types and habitats using fine-scale lidar metrics derived from country-wide Airborne Laser Scanning
Habitat classification Phragmites australis reedbed structural heterogeneity vegetation complexity wetland conservation
2023/12/19
Mapping 3D vegetation structure in wetlands is important for conservation and monitoring. Openly accessible country-wide Airborne Laser Scanning (ALS) data-using light detection and ranging (lidar) te...
One hundred years into the study of ecotypes, new advances are being made through large-scale field experiments in perennial plant systems
EvolutionLocal adaptationNatural selectionGenomicsClimate changeTrade-off
2023/11/28
A hundred years after Turesson first clearly described how locally adaptive variation is distributed within species, plant biologists are making major breakthroughs in our understanding of mechanisms ...
【目的】为了寻找受区域影响较小、精度较高且鲁棒性较好的郁闭度遥感估算模型,采用4-Scale几何光学模型估算人工林树冠孔隙率及郁闭度。【方法】选择内蒙古旺业甸林场和广西高峰林场为实验区,首先对4-Scale模型进行参数敏感性分析,模拟林分在不同敏感性参数下的树冠孔隙率P_(vg_c)(树冠为刚体时的冠间孔隙率)和P_(vg)(考虑树冠内部孔隙的孔隙率),建立P_(vg_c)、P_(vg)与敏感性参...
Innovative approaches in forest management – the application of a business model to designing a small-scale forestry strategy
resources innovation rural economy competitive advantage business opportunities extended business model CANVAS
2018/3/6
The strong market competition forces forest owners to find innovative approaches to forest management, and business
models are becoming integral parts of successful innovations and business strategie...
Practical verification of food supply to game in conditions of large-scale shelterwood system
game management carrying capacity biomass production energy requirement
2015/2/6
In the hunting district Hády (897 ha), which is operated by the Křtiny Training Forest Enterprise,383 samples of biomass utilizable as wildlife forage were collected and analysed; they were also ...
Water Stress Strengthens Mutualism Among Ants, Trees, and Scale Insects
Ants, Trees Scale Insects
2015/11/13
Abiotic environmental variables strongly affect the outcomes of species interactions. For example, mutualistic interactions
between species are often stronger when resources are limited. The effect m...
Effect of Spatial Scale on Modeling and Predicting Mean Cavity Tree Density: A Comparison of Modeling Methods
CART, Logistic Regression Neural Network Oak Forest Prediction Accuracy
2013/3/4
Cavity trees are integral components of healthy forest ecosystems and provide habitat and shelter for a wide variety of wildlife species. Thus, monitoring and predicting cavity tree abundance is an im...
Forest Biomass Availability Analysis and Large-Scale Supply Options
Logistics Forest Residues Supply Chain Biorefinery
2013/3/4
Finnish forest companies aim to produce biodiesel based on the Fischer-Tropsch process from forest residues. This study presents method to evaluate biomass availability and supply costs to the selecte...
Water Resources Observation and Large-scale Model Estimation in Forested Areas in Mekong River Basin
available renewable freshwater resources canopy interception experimental watershed large-scale model rainfall-runoff observation
2010/10/25
In this paper, we have measured many meteorological elements associated with evapotranspiration using a 60-m-high meteorological observation tower, runoff and precipitation of broad-leaf forest waters...
Control Method and Effect of Low Volume Pesticide Application to Mulberry Scale, Pseudaulacaspis pentagona (Targioni), Using Mist Blower in Tea Field
Tea field Mulberry Scale Pseudaulacaspis pentagona
2010/12/2
The effectiveness of low volume pesticide application using a mist blower against mulberry scale in tea cultivation was investigated. The pesticide adhesion to the branches and the effectiveness in co...
Large-scale Felling in Ikawa,Northern Shizuoka,the Edo Era
clear cutting floating large scale felling Ohi river Shogunate use
2009/8/24
In 17C, Genroku period in the Edo Era, Mr. Bunzaemon Kinokuniya, who was a citizen of Edo, cooperated with Mr. Genzou Matukiya, who was a citizen of Suruga. The two were jointly contracted to log for ...
A Continental Scale Vegetation Index from Indian Geostationary Satellite
NDVI Geostationary CCD INSAT Asia
2016/4/8
Time series vegetation index is a valuable source to derive several plant biophysical parameters, landuse land cover change dynamics and to study climatic behavior. Geostationary satellite sensor is c...