摘要
选用了湖北省马尾松产区的227株平均解析木资料,以Richards函数为基本模型并加以修正,采用Marquard迭代方法模拟多形曲线方程,编制湖北省马尾松人工林多形曲线地位指数表。经检验,该表模拟精度高,估测误差小,可在生产中使用。
Based on a revised Richards function,with the use of the Marquard iteration method and by analyzing data of 227 trees collected from Masson pine plant regions,site index table with multi-curves was compiled for Masson pine plantation in Hubei Province. The table with higher precision and less errors can be applied to the forestry production.
出处
《华中农业大学学报》
CAS
CSCD
北大核心
1996年第3期289-294,共6页
Journal of Huazhong Agricultural University
基金
国家"八五"攻关课题
关键词
马尾松
人工林
多形曲线
地位指数
林分生产力
masson pine plantation,the site index with multi-curves,stand productivity