摘要
应用１９５ 株刺槐（ Ｒｏｂｉｎｉａ ｐｓｅｕｄｏａｃａｃｉａ） 优势木解析木资料，在比较多个树高生长模型基础上，选择Ｒｉｃｈａｒｄｓ 生长函数Ｈ＝ ａ（１ —ｅ－ ｂＡ）ｃ 作为辽宁省刺槐优势高生长模型。在分析优势高生长过程的基础上，确定基准年龄为１２ 年，立地指数级距为２ ｍ ，在５ ～１５ ｍ 范围内划分为５ 个指数级，用差分法展开导向曲线编制了单形立地指数表。应用分组整理后解析木资料，拟合出最优多形立地指数模型，并解决了立地指数曲线不过指数点的问题，编制了多形立地指数表。检验结果表明，所编单形与多形立地指数表精度均较高，且以多形立地指数表精度更高，适用性更强，客观正确评价刺槐人工林立地生产力。
In this paper, 195 dominanting stem\|analysis data of \%Robinia pseudoacacia\% were used to construct single\|form and multiple form site index chart, Richard function \%H=a(1-e\+\{-bA\}) c\% was taken for dominant height growth model of \%Robinia pseudoacacia\% in Liaoning province. On the basis of analizing the characteristics of dominant height growth, 5 index classes were divided out within 5～15?m (baseline age was 12 years, and the interval of site index class was 2?m), and 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 stem\|analysis data and the problem that site index curve did not pass the index point has been solved, multiple form site index curve was constructed. The examination results indicated that: the accuracy of single form and multiple form site index tables were very 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, which whowed that the dominant height growth was multiple formed. The paper also evaluated productivity of \%Robinia pseudoacacia\% plantation in Liaoning Province.
出处
《林业科学》
CAS
CSCD
北大核心
2000年第1期41-46,共6页
Scientia Silvae Sinicae
关键词
刺槐
立地指数表
生产力
人工林
Robinia pseudoacacia,\% Single form site index table, Multiple form site index table, Productivity
