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›› 1984, Vol. 20 ›› Issue (4): 351-358.

• 论文及研究报告 • 上一篇    下一篇

四川凉山州云南松飞播区土壤条件和云南松生长

刘辅琪   

  1. 四川省林业学校
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1984-11-25 发布日期:1984-11-25

RELATIONSHIPS BETWEEN THE GROWTH OF PINUS YUNNANENSIS AND THE SOIL CONDITIONS IN THE DISTRICT OF LIANGSHAN, SICHUAN PROVINCE

Liu Fuqi   

  1. Forest School of Sichuan Province
  • Received:1900-01-01 Revised:1900-01-01 Online:1984-11-25 Published:1984-11-25

摘要: 为探讨土壤条件与飞播云南松生长的关系,我们在四川省的西昌、喜德、盐源、昭觉四县云南松飞播区进行了土壤类型、土壤物理性状对云南松高、径、材积和根系生长影响的调查,结果以山地红壤、暗红壤、黄红壤上云南松的高、径、材积生长量最大,在土壤质地为砂土—壤土范围内土层厚度和生长量成正比,适宜根系生长的土壤容重1.2—1.7克/米3,孔隙度36—55%,石砾含量10%左右。

Abstract: The present paper is dealing with the relationships between the growth of Pinus yunnanensis, of which stands were established by aerial sowing, and the soil conditions in the district of Liangshan, Sichuan Province, where there are many different types of soil such as mountainous laterite, sometimes in dark red colour, and yellowish red earth and brown earth and etc. Among those soils, mountainous laterite and yellowish red earth are more suitable for growing P. yunnanensis. Within the same type of soil there are some variations in depth, texture, pore size, amount of gravel and other physical characters by which the growth of the pine is significantly affected. The result of correlation analysis showed that,the growth of Pinus yunnanensis in height, diameter and volume was positively correlated with the depth of soil, and the pine stands growing on the loam contribute the greatest volumes compared with the other soils. It was also found that for this species the optimum bulk density was in 1.2—1.7g/cm3,porosity and gravel content around 36—55% and 10%, respectively.