搜索结果: 1-15 共查到“农学 modeling”相关记录46条 . 查询时间(0.25 秒)
Biomass and Volume Modeling along with Carbon Concentration Variations of Short-Rotation Poplar Plantations
biomass additivity Populus spp quantifying carbon stock short-rotation coppice stem volume equations
2024/1/22
Short-rotation forestry is of interest to provide biomass for bioenergy and act as a carbon sink to mitigate global warming. The Poplar tree (Populus × xiaohei) is a fast-growing and high-yielding tre...
Modeling Biomass and Nutrients in a Eucalyptus Stand in the Cerrado
non-linear model Schumacher–Hall model aerial biomass nutrient cycling
2024/1/19
The prediction of biological processes, which involve growth and plant development, is possible via the adjustment of mathematical models. In forest areas, these models assist in management practices,...
Use of Optimization Modeling to Assess the Effect of Timber and Carbon Pricing on Harvest Scheduling, Carbon Sequestration, and Net Present Value of Eucalyptus Plantations
timber harvest scheduling mixed-integer programming harvest age carbon sequestration
2023/12/19
Quantifying the impact of carbon (C) and timber prices on harvest scheduling and economic returns is essential to define strategies for the sustainable management of short-rotation plantations so that...
Ecological niche modeling of the pantropical orchid Polystachya concreta (Orchidaceae) and its response to climate change
CONSERVATION RESOLUTION FOREST AREAS DIVERSITY INVASIONS PATTERNS SHIFTS BRAZIL HOOK
2023/12/18
Climate is the dominant control factor on the spatial distribution of organisms on a global scale and global warming is predicted to become a major cause of species extinctions. In our study ecologica...
Unmanned?aerial?vehicles (UAV)-based canopy height modeling under leaf-on and leaf-off conditions for determining tree height and crown diameter (case study: Hyrcanian mixed?forest)
canopy height model digital elevation model forest inventory unmanned aerial vehicles (UAVs) tree crown architecture
2023/12/1
Tree height and crown diameter are two common individual tree attributes that can be estimated from unmanned aerial vehicle (UAV) images thanks to photogrammetry and structure from motion. This resear...
Modeling Tree Growth Responses to Climate Change: A Case Study in Natural Deciduous Mountain Forests
biotic and abiotic factors climate change Hyrcanian Forest machine learning RCP scenarios
2023/11/22
Climate change has significant effects on forest ecosystems around the world. Since tree diameter increment determines forest volume increment and ultimately forest production, an accurate estimate of...
Modeling the effect of rockfall on forest development in a dynamic forest landscape model
disturbance dynamic forest modeling meta-model protection forest rockfall rockfall-forest feedback TreeMig
2023/11/20
Mountain forests below rocky cliffs are regularly impacted by falling blocks. Rockfall thus increases tree mortality and can locally alter the forest structure. At the same time, trees can decelerate ...
Spatial confounding in Bayesian species distribution modeling
estimation bias Gaussian process spatial confounding spatial random effect species distribution model
2023/11/20
Species distribution models (SDMs) are currently the main tools to derive species niche estimates and spatially explicit predictions for species geographical distribution. However, unobserved environm...
An integrated platform and meta-learner for feature engineering machine learning analysis and modeling of DNA, RNA and protein sequence data
python 工具包 蛋白质序列
2024/5/17
一个全面和通用的基于python的工具包，集成了特征提取、聚类、归一化、选择、降维、预测器构建、最佳描述符/模型选择、集成学习和DNA、RNA和蛋白质序列结果可视化的功能。用户只需要上传自己的数据集，并从中计算出自己需要的功能，所有必要的程序和优化设置都由软件自动完成。iLearn包括DNA、RNA和蛋白质的各种描述符，支持四种特征输出格式，以便于直接使用输出或与其他计算工具通信。总的来说，iLe...
Modeling the Carbon Cycle of a Subtropical Chinese Fir Plantation Using a Multi-Source Data Fusion Approach
process-based terrestrial ecosystem model model–data fusion multi-source data carbon cycle plantation
2024/2/5
Process-based terrestrial ecosystem models are increasingly being used to predict carbon (C) cycling in forest ecosystems. Given the complexity of ecosystems, these models inevitably have certain defi...
MODELING PRECIPITATION DEPENDENT FOREST RESILIENCE IN INDIA
Resilience Total Annual Precipitation Logistic Regression Forest Climate Regime Change Proneness
2018/5/11
The impact of long term climate change that imparts stress on forest could be perceived by studying the regime shift of forest ecosystem. With the change of significant precipitation, forest may go th...
International Conference on Functional-Structural Plant Growth Modeling, Simulation, Visualization and Applications (FSPMA 2016)
Model-Assisted Plant Breeding Optimality of Plant Structures
2016/7/29
FSPMA2016 is a joint conference between FSPM and PMA aiming at gathering researchers of multi-disciplinary background working on plant modeling and their applications.
Modeling of Glyphosate Application Timing in Glyphosate-Resistant Soybean
Time density equivalent weed emergence dynamics weed-crop competition
2015/12/21
The introduction of herbicide-resistant crops and postemergence herbicides with a wide action spectrum shifted the research focus from how to when crops should be treated. To maximize net return of he...
Numerical modeling of aquaculture dissolved waste transport in a coastal embayment
Effluent pollution Dispersion Aquaculture Numerical modeling Plume dynamics Coastal engineering
2015/6/30
Marine aquaculture is expanding rapidly without reliable quantification of effluents. The present study focuses on understanding the transport of dissolved wastes from aquaculture pens in near-coastal...
Non-linear mixed-eff ects modeling for photosynthetic response of Rosa hybrida L. under elevated CO2 in greenhouses – Short communication
miniature rose irradiance response curve
2015/3/4
Photosynthetic response to light was measured on the leaves of two cultivars of Rosa hybrida L. (Escimo and Mercedes)
in the greenhouse to obtain light-response curves and their parameters. Th e aim...