| 南方型杨树人工林立地指数表的编制 |
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| 引用本文： | 肖君,方升佐,徐锡增.南方型杨树人工林立地指数表的编制[J].福建农林大学学报(自然科学版),2006,35(6):604-609. |
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| 作者姓名： | 肖君 方升佐 徐锡增 |
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| 作者单位： | 南京林业大学森林资源与环境学院,江苏,南京,210037 |
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| 摘 要： | 利用163块标准地资料和95株解析木资料,对多个树高生长模型进行比较分析,选择R ichards生长函数H=a(1-e-bA)c作为南方型杨树优势高生长模型.在分析优势高生长过程的基础上,参照前人的分析结果,确定基准年龄为6 a,立地指数级距为2 m,立地指数等级为7级,龄阶距为1 a.用差分法展开导向曲线,编制了单形立地指数表.应用分组整理后的数据资料,拟合出最优多形立地指数模型,编制了多形立地指数表.结果表明,所编单形与多形立地指数表精度均较高,且多形立地指数表精度更高,适用性也更强.
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| 关 键 词： | 杨树人工林 单形立地指数表 多形立地指数表 |
| 文章编号： | 1671-5470(2006)06-0604-06 |
| 收稿时间： | 2005-12-26 |
| 修稿时间： | 2006-07-25 |
Construction of site index tables of poplar plantations in southern areas |
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| XIAO Jun,FANG Sheng-zuo,XU Xi-zeng.Construction of site index tables of poplar plantations in southern areas[J].Journal of Fujian Agricultural and Forestry University,2006,35(6):604-609. |
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| Authors: | XIAO Jun FANG Sheng-zuo XU Xi-zeng |
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| Institution: | College of Forest Resources and Environment Nanjing, Forestry University, Nanjing, Jiangsu 210037, China |
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| Abstract: | The data from 163 plots of poplar plantations and stem analysis of 95 poplar trees were used to construct the site index tables of single form and multiple form,Richards function H=a(1-e~(-bA))~c was selected for dominant height growth model of southern type poplar.By analyzing the characteristics of dominant height growth,the results were as follows: index class was 7,baseline age was 6 years,the interval of site index class was 2 m,the interval of age gradation was 1 year.Single form site index table was constructed after derived curve was expanded by differential method.The optimum multiple form site index curve was fitted by means of the adjusted data,and multiple form site index curve was constructed.The results indicated that the accuracies of index table of single form site and multiple form site were both high.However,the accuracy of multiple form site index table was higher than that of the single form site index table,and the table was more practical. |
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| Keywords: | poplar plantation single form site index table multiple form site index table |
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