ecological gradient 第1页

STUDY ON THE APPLICATION OF ECOLOGICAL GRADIENT AXES(EGA) IN FOREST ECOLOGICAL GENETICS-USING CA METHOD TO ESTIMATE EGA1) and EGA(r2) The ordination axes clustering based on detrended canonical correspondence analysis ordination and its application to the analysis of the ecological gradients of plant communities STUDY ON THE APPLICATION OF ECOLOGICAL GRADIENT AXES(EGA) IN FOREST ECOLOGICAL GENETICS——EGA(PCr) ESTIMATED BY USING PCA METHOD Effects of urbanization on forest vegetation,soils and landscape Spatial heterogeneity of moisture and temperature in soil across the cropland-grassland boundary in Guyuan of north agro-pastoral transition zone, China