搜索结果: 1-15 共查到“农学 volume”相关记录30条 . 查询时间(0.093 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...
Spray and economics assessment of a UAV-based ultra-low-volume application in olive and citrus orchards
Agrochemical application UAV Sprayer Economic analysis
2024/1/19
Automation is a new frontier in specialty agriculture equipment. Specifically, unmanned aerial vehicles (UAV), machine vision and robotics will increasingly appear in sustainable agricultural systems....
Allometric Equations for Volume, Biomass, and Carbon in Commercial Stems Harvested in a Managed Forest in the Southwestern Amazon: A Case Study
managed forests carbon sequestration state Acre Brazil tropical forest rainforest timber
2024/1/19
Forests in the southwestern Amazon are rich, diverse, and dense. The region is of high ecological importance, is crucial for conservation and management of natural resources, and contains substantial ...
Empowering Forest Owners with Simple Volume Equations for Poplar Plantations in the órbigo River Basin (NW Spain)
tree plantations growth equations rotation length growth rates poplar productivity
2024/1/11
Hybrid poplar plantations are becoming increasingly important as a source of income for farmers in northwestern Spain, as rural depopulation and farmers aging prevent landowners from planting other la...
Integration of Multi-Sensor Data to Estimate Plot-Level Stem Volume Using Machine Learning Algorithms-Case Study of Evergreen Conifer Planted Forests in Japan
UAS stem volume TLS SAR random forest support vector multiple regression forest biophysical parameter
2023/12/21
The development of new methods for estimating precise forest structure parameters is essential for the quantitative evaluation of forest resources. Conventional use of satellite image data, increasing...
Using Airborne Lidar, Multispectral Imagery, and Field Inventory Data to Estimate Basal Area, Volume, and Aboveground Biomass in Heterogeneous Mixed Species Forests: A Case Study in Southern Alabama
laser forestry allometry parametric non-parametric modeling 3DEP Alabama
2023/11/30
Airborne light detection and ranging (lidar) has proven to be a useful data source for estimating forest inventory metrics such as basal area (BA), volume, and aboveground biomass (AGB) and for produc...
Using Tree Height, Crown Area and Stand-Level Parameters to Estimate Tree Diameter, Volume, and Biomass of Pinus radiata, Eucalyptus globulus and Eucalyptus nitens
radiata pine blue gum shinning gum diameter-height allometry crown diameter stem volume above-ground biomass growth and yield modeling remote sensing
2023/11/22
Accurate estimates of tree diameter, height, volume, and biomass are important for numerous economic and ecological applications. In this study, we report exponential equations to predict tree DBH (cm...
The use of fixed-wing UAV photogrammetry with LiDAR DTM to estimate merchantable volume and carbon stock in living biomass over a mixed conifer-broadleaf forest
UAV photogrammetry LiDAR DTM estimate merchantable volume carbon stock mixed conifer-broadleaf forest
2024/2/28
Remote sensing (RS) data are often used as a complementary data source to acquire accurate quantitative estimations of merchantable volume (V) and carbon stock in living biomass (CST), which are criti...
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...
Three-dimensional computed tomographic volume rendering imaging as a teaching tool in veterinary radiology instruction
three-dimensional CT teaching veterinary radiology
2015/4/7
The educational value of three-dimensional computed tomography (3D CT) volume rendering imaging was compared to conventional plain radiographic instruction in a veterinary radiology class. Veterinary ...
A mathematical model to estimate the volume of grey water of pesticide mixtures
water footprint pesticide management sugarcane herbicide water quality objective (WQO)
2014/10/24
The usual method to calculate grey water footprint does not take into account the volume of water required to dilute concentrations of pesticide mixtures in freshwater and it also depends on maximum c...
QTL Mapping for chinese northern-style steamed bread specific volume
Wheat Doubled Haploid Quantitative Trait Loci CNSB Specific Volume
2013/3/4
In this study, quantitative trait loci (QTLs) with additive effects, epistatic effects for CNSB specific volume in bread wheat (Triticum aestivum L.), were studied in cultivars Huapei 3 and Yumai 57 (...
Salivary Secretion Volume Related Ruminal Distension and Suppression of Dry Forage Intake in Large-type Goats
Salivary Secretion Volume Ruminal Distension Dry Forage Intake Suppression Large-type Goats
2016/5/6
Two experiments under sham feeding conditions were conducted to determine whether or not ruminal distension brought about by feed boluses entering the rumen is a factor in the marked suppression of fe...
Relationships between the HMW- and LMW-glutenin Subunits and SDS-Sedimentation Volume in Spanish Hulled Wheat Lines
emmer wheat genetic resources bread-making quality spelt wheat
2014/3/11
Emmer and spelt are two hulled wheats that were widely grown in Spain until the latter 1960s. Twentynine emmer and twenty-six spelt lines obtained from Spanish accessions of these hulled wheats were a...
Effects of Reduced Amounts of Fertilizer on Nutrition, Fruit Yield and Quality of Satsuma Mandarin Receiving Frequent Spraying with a Small Volume of Liquid Fertilizer
brix citric acid content labor-saving skin color sprinkler
2010/11/24
Effects of overhead liquid fertilizer application on tree nutrition, yield and fruit quality of satsuma mandarin (Citrus unshiu Marc.) were investigated. Liquid fertilizer was prepared by dissolving s...