林分、土壤及空间因子对谷地云冷杉林叶面积指数空间异质性的影响
杨焕莹1,宋建达1,周焘1,金光泽2,3,姜峰2,刘志理2,3,*(
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Influences of stand, soil and space factors on spatial heterogeneity of leaf area index in a spruce-fir valley forest in Xiao Hinggan Ling, China
YANG Huan-Ying1,SONG Jian-Da1,ZHOU Tao1,JIN Guang-Ze2,3,JIANG Feng2,LIU Zhi-Li2,3,*()
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图3. 小兴安岭谷地云冷杉林叶面积指数(LAI)在4个方向上(0°、90°、45°和135°)的各向异性变异函数图。
Fig. 3. Anisotropic semivariograms at four directions (east- west (0°), south-north (90°), northeast-southwest (45°), and northwest-southeast (135°)) of leaf area index (LAI) in a spruce- fir valley forest in Xiao Hinggan Ling, China.
