四川巨桉短周期工业原料人工林地位指数表的编制

The Site Index Table Compilation for Pulpwood Plantation of Eucalyptus grandis in Sichuan

在泸州、宜宾、富顺、洪雅、眉山、丹棱、沙湾、夹江、沐川等地的各种立地条件和不同年龄的巨桉人工林分中,调查了标准地175块。通过比较选出了H=28 21970(1-e-0.15600A)0.99310作为巨桉人工林地位指数表导向曲线的最优模型,用标准差调整法编制了巨桉短周期工业原料人工林地位指数表,并对其精度进行了检验,符合要求。

175 sample plots were surveyed in Eucalyptus grandis pulpwood plantations which were distributed in the cities and counties such as Luzhou, Yibing, Meishan, Fushun, Hongya, Danling, Shawan, Jiajiang and Muchuan of Sichuan Province. The plantations are of different ages and grow in different site conditions. By comparison, the equation: H=2821970 (1-e-0.15600A)0.99310 was selected as the optional model of guide curve of site index for Eucalyptus grandis. The site index table of Eucalyptus grandis was complied with adjusting standard deviation. The model was tested and its accuracy could met the requirement.