principal component analysis 第1页

Characteristic Analysis of Nutrient Contents of Major Tree Species in Northeast China Canonical Analysis and the Principal Components Analysis of Plant Community with Its Environmental Factors in the Yellow River Delta Ecological effects of landscape structure on desertification process of Keerqin sandy land Effects of meteorological factors and mineral elements on the content of resveratrol in Polygonum cuspidatum rootstalk Heavy metal concentration in Nanjing urban soils and their affecting factors Effect of high temperature on life cycle forms and physiological metabolisms of Catharanthus roseus Monitoring of Chemical Components Changes during Tussilago farfara L. Development using NMR-based Metabolomics Morphological Variations of Stipa krylovii Roshev. in Middle and Eastern Inner Mongolia Steppe Recognition of Tomato Foliage Disease Based on Computer Vision Technology The Study on Numerical Taxonomy of Cypripedium in North and Northeast China STUDIES ON THE STRUCTURE OF THE INSECT COMMUNITY AND THE EFFECT OF INTEGRATED PEST MANAGEMENT Root Growth of Quercus variabilis Seedlings in Response to the Environmental Heterogeneity Comprehensive Evaluation of Different Transformation Models of Low-Quality Broad-Leaved Mixed Forest in Daxing’an Mountains HPLC-UV fingerprint and medicinal quality evaluation of saponins from plants of varieties of Hedera helix Determination and correlation analysis on 26 inorganic elements in Tibetan treasures medicine Zuozhudaxi and major raw mineral material by microwave digestion-ICP-OES Characterization of smell and taste of pungent-taste herbs based on electronic nose and electronic tongue Application of multivariate statistical methods in research of Chinese medicinal materials resource ecology ORDINATION ANALYSES OF 19 SPECIES OF BRYOPHYTA BASED ON SOD AND EST ISOZYMES Study on determination and principal component analysis of inorganic elements in Polygonum multiflorum from different areas Principal component analysis and correlation analysis of elements in Flos Chrysanthemi Indici from different regions Recognition of spikes of Schizonepeta tenuifolia from different area based on backpropagation neural network coupled with dimension reduction of principal component analysis Relationship between climatic factors and geographical distribution of spruce forests in China Genotypic differences in salt tolerance from germination to seedling stage in peanut Phenotypic variation in populations of Solanum rostratum in different distribution areas in China Assessment of landscape ecological security and optimization of landscape pattern based on spatial principal component analysis and resistance model in arid inland area: A case study of Ganzhou District, Zhangye City, Northwest China. Index screening and comprehensive evaluation of phenotypic traits of low nitrogen tolerance using BILs population derived from Dongxiang wild rice Low-temperature response and cold tolerance at spike differentiation stage of winter wheat varieties sowed in spring. Topographical and pedological factors adapted to the growth of domestic truffles (Tuber indicum). Structure dynamics of insect communities in typical artificial and primeval forests during restoring stages in Xiaoxing’an Mountain, Northeast China. Characteristics of Carex brevicuspis and its impact factors in Dingzidi, East Dongting Lake. The research on Buteo hemilasius nest-site selection on the west bank of Dalai Lake in Dalai Lake Natural Reserve Evaluation and simulation of historical range of variability of forest landscape pattern in Huzhong area Spatial-temporal differentiation of water quality in Gufu River of Three Gorges Reservoir Characteristics of soil fertility in different ecosystems in depressions between karst hills Comprehensive evaluation on photosynthetic and fluorescence characteristics in seedlings of 4 drought resistance species A remote sensing urban ecological index and its application Variation in main morphological characteristics of Amorpha fruticosa plants in the Qinghai-Tibet Plateau Using periphyton assemblages to assess stream conditions of Taizi River Basin, China Distribution Pattern of Female Flowers in Crown and Less Catkins Clones Selection of Aigeiros Studies on Phenotypic Allocation of Melia azedarach Leaf Photosynthetic Pigment Contents and Quantitative Evaluation of Shade Tolerance Among 50 Plant Species on Karst Rocky Mountain in Guilin Analysis on Volatile Components of Caryophylli Flos from Different Habitats Screening Indexes for Drought Resistance of Seven Winter Wheat Cultivars at the Grain-filling Stage Research and Evaluation on Chemical Fingerprints of Diterpenoids from Rabdosia rubescens Variation in Traits of Magnolia officinalis Seedlings from Different Provenances and Their Principal Component Analysis A Numerical Taxonomic Study of the Carex Section Racemosae (Cyperaceae) in China Comparision of contents of anthraquinones and phenolic acids compounds in different processed products from Rheum officinale by principal component analysis FTIR fingerprint spectrograms of traditional Chinese medicine Marsdenia tenacissima Identification of marine-derived shell TCM by near infrared spectroscopy Quantitative Analysis on the Economic Characters of Castanea henryi Nut Identification of Agronomic Traits and Evaluation of Resistance to Phytophthora capsici in C. frutescens in China The spring habitat selection of reindeer (Rangifer tarandus) in Great Xing‘anling of China Dynamic evaluation of ecological vulnerability in the Three Gorges Reservoir Region in Chongqing Municipality, China Hyperspectral estimating models of tobacco leaf area index Principal Component Analysis and Comprehensive Evaluation on Quality Characteristics of Potato Flour Study on the Formation and Varied Characteristics of Amino Acids in Pickled Wax Gourd East Zhejiang Characterization of weed community in winter wheat in Hebei Province PRINCIPAL COMPONENT ANALYSIS OF THE LEAF CHARACTERISTIC OF PAULOWNMIA CLONES IN THE SEEDLING STAGE Soil Infiltration Characteristics and Its Influencing Factors under Phyllostachys edulis Forests in Northern Fujian Province Population Structure and Dynamics of Quercus variabilis in Different Habitats on Northern Slope of Bashan Mountain Study on Variation and Covariation Pattern of Seedling Nutrient Concentrations within and between Populations of Arabidopsis pumila UPLC fingerprint of Paeoniae Alba Radixfrom different regions Correlation on quality and ecotype of Astragalus membranaceus var. mongholicus Numerical analysis of morphological variation of germplasm resources of Chrysanthemum morifolium for medicine Experimental study on anti-atherosclerotic effect of compatibility of active components of Danshen and Shanzha Numerical Classification of the Loquat Germplasm Characteristics of Enzyme Activities in Apple Orchard Soil in Weibei Arid Region The Study on Numerical Taxonomy of Cypripedium in North and Northeast China Evaluation of Peach Rootstock Waterlogging Tolerance Based on the Responses of the Photosynthetic Indexes to Continuous Submergence Stress Physiological indexes of six plant species from the tibetan plateau under drought stress The water quality changes during rainfall in natural Picea schrenkiana var. tianschanica forest ecosystem in the Middle Tianshan mountains Characters of life cycle forms of Chelidonium majus populations in different habitats and their correlation to the contents of tannin, flavones and alkaloids in different organs Effects of planting transgenic cotton on functional diversity of rhizosphere soil microbial community. Insect community structure and its stability in a Zanthoxylum bungeanum garden with different planting pattern. Nutrient composition changes in coastal waters of Tangshan Bay, Hebei, China under anthropogenic influence. Effects of composting with earthworm on the chemical and biological properties of agricultural organic wastes: A principal component analysis. Plant traits and soil properties in pasture mini-patches in an alpine meadow Effect of urbanization on the temperature of Beijing metropolis in recent 30 years Effects of different amounts of Cassia rotundifolia appended on the yield and amino acid of Tricholoma loba tense heim A study on the comprehensive assessment of agro—ecosystem in the Three Gorges Reservoir Area