冀西北清水河流域不同白桦林型土壤分形特征
马俊杰1，钟良子1，袁胜亮2，曹鹤1，张晨星1，杨新兵1
Soil fractal characteristics of three different forest types of Betula platyphylla in Qingshui river basin of northwestern Hebei Province
MA Junjie1, ZHONG Liangzi1, YUAN Shengliang2, CAO He1,
河北农业大学学报
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2019, (3): 64
-70
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DOI: 10.13320/j.cnki.jauh.2019.0057
