云南三江口自然保护区珙桐生境土壤水分物理性质分析Ⅰ

Soil Water and Physical Properties Analysis of the Davidia involucrate Baill Habitat in Yunnan Sanjiangko Nature Reserve Ⅰ

[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、p H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,p H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。

[Objective]To study soil environment of Davidia involucrate Baill in Yunnan Sanjiangko Nature Reserve. [Method]Based on 3sampling sites in the Yunnan Sanjiangko Nature Reserve,the soil moisture content,p H and physical properties of 0- 20 and 20- 40 cm soil layers were studied. [Result] Davidia involucrata Baill had higher soil moisture,acidic p H,bulk density,porosity and other physical properties 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.