搜索结果: 1-15 共查到“农学 statistical”相关记录23条 . 查询时间(0.109 秒)
Improving Estimates and Change Detection of Forest Above-Ground Biomass Using Statistical Methods
above-ground biomass remote sensing statistics modelling spatial modelling machine learning
2023/11/29
Forests store approximately as much carbon as is in the atmosphere, with potential to take in or release carbon rapidly based on growth, climate change and human disturbance. Above-ground biomass (AGB...
Breeding value evaluation in Polish fur animals: Statistical description of fur coat and reproduction traits – relationship and inbreeding
fur animals fur coat inbreeding
2015/6/5
Three data sets were available: records on conformation and coat traits for the arctic fox from one farm (5 540 observations, collected between 1983 and 1997), and the same traits for the silver fox f...
Estimated flows of suspended solids by the statistical analysis of outfall drainage basin of Tafna (Algeria)
catchment erosion sediment transport statistics suspension Tafna
2015/3/9
The solids transport is a complex phenomenon; the intensity of these phenomena varies greatly with the general environment: geology, degree of rock alteration, hydrology, vegetation, climate, etc. The...
Multivariate statistical approach to comparison of the nutrient status of Norway spruce (Picea abies [L.] Karst.) and top-soil properties in differently managed forest stands
humification nutrition cation exchange capacity (CEC)
2015/3/6
The soil is an irreplaceable component of forest ecosystems. Soil-forming processes directly influence element cycling (EC). Plant-soil interaction is a specific part of EC. Plant-soil interactions we...
Problems of the statistical evidence of feedbacks between forest herb phytocoenoses and soil acidity at pollution load
substitute stands phytocoenosis bioindication trophic series soil acidity
2015/2/2
Emissions and ecological factors are evident in changes of dynamics of global forest ecosystems. Specific develop-ment takes place in these substitute stands on contaminated and devastated plots. The ...
A statistical small-area method of estimation of spatial distribution of the tree damage degree
survey sampling unrestricted simple random sampling Sinus system
2015/1/29
The objectives of this study are to demonstrate a small-area method of estimation of the spatial distribution of the tree damage degree, and to initially verify it during the assessment of fir (Abies ...
Lectures of Statistical Logics for Beginners (Part II)Correlation and Linear Regression
Statistical Logics for Beginners Correlation Linear Regression
2010/12/3
Lectures of Statistical Logics for Beginners (Part II)Correlation and Linear Regression
Lectures of Statistical Logics for Beginners (Part I).
USING CLASSIFICATION TREES IN STATISTICAL ANALYSIS OF DISCRETE SHEEP REPRODUCTION TRAITS
sheep/reproductive performance classification trees
2010/12/8
The research material covered 2-8 year-old 6,586 Polish Merino ewes. Ewes were obtained from ten flocks located in the Pomorze and Kujawy Region (Poland). The reproductive performance index (the numbe...
Determination of the best blackberry cultivar using various statistical techniques
Adaptation blackberry cane fruit Chi-square statistic
2011/1/11
This study was conducted to determine the best blackberry cultivar using jointly various statistical techniques such as Chi-square, G, and Correspondence statistics. For this aim, data of pomological ...
Statistical Analysis of Soybean Yield and Meteorological Conditions in the Northern Kyushu
Meteorological conditions Yield Yield components Grain number Soybean Pod number ripening
2009/7/9
The relationships between soybean and meteorological conditions were statistically analyzed from 1985 to 2000, in order to establish cultivation techniques that improve the yield of soybean in Northe...
Statistical Analysis of the Development of Internal Browning in Japanese Radish in Relation to Thermal Condition Using Logit Model
air temperature covering materials soil temperature
2009/7/8
To clarify the correlation between the occurrence of internal browning (IB) in Raphanus root and the thermal condition, especially, during the later growth period, a logit model was established, using...
Examining Statistical Sufficiency of Rainfall Intensities at Standard Times of Adana
Statistical Sufficiency Rainfall Intensities Standard Times of Adana
2009/1/22
Hydrological and meteorological events are effected from different factors. Their values in future can only be determined by probability and statistical laws because rainfall intensities at standard ...
Investigation of Genotype X Planting Time Interaction by Using Ammi Statistical Model in Potatoes
Genotype X Planting Time Interaction Ammi Statistical Model Potatoes
2009/1/15
In studies on potato planting time, the main effects of genotype and planting time were determined by variance analysis and are discussed. However, the main specific causes of interaction were not dem...
Statistical Modeling of the Effect of Physio-Biochemical Parameters on Water Use Efficiency of Grape Varieties, Rootstocks and Their Stionic Combinations under Moisture Stress Conditions
Grape varieties rootstocks budded vines water use efficiency correlation regression model
2009/1/12
The effect of various physio-biochemical parameters on the water use efficiency (WUE) of grape varieties, rootstocks and budded vines was studied in 3 separate experiments at 3 levels of irrigation (1...