摘要
[目的]研究云南三江口自然保护区珙桐的土壤环境。[方法]在云南三江口自然保护区设3个采样地，研究0～20、20～40 cm土层土壤含水量、pH与物理性质。[结果]该自然保护区珙桐生长地的土壤含水量较高，pH偏酸性，容重、孔隙度等物理特性适宜珙桐生长及繁殖。[结论]为三江口自然保护区珙桐种子的自然萌发引种繁殖提供科学依据。
Abstract
Objective]To study soil environment of Davidia involucrate Baill in Yunnan Sanjiangko Nature Reserve.[Method]Based on 3 sampling sites in the Yunnan Sanjiangko Nature Reserve, the soil moisture content, pH and physical properties of 0-20 and 20-40 cm soil layers were studied.[Result] Davidia involucrata Baill had higher soil moisture, acidic pH, bulk density, porosity and other physical proper-ties suitable for growth and reproduction.[ Conclusion] To provided the conditions for seeds of Davidia involucrate Baill in Yunnan Sanjiangko Nature Reserve, and provided a scientific basis for introduction and reproduction.
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