摘要
本文以长白落叶松和杉木验证了作者提出的同林纯林自稀疏方程式。１ｎ（Ｎ）＝１ｎ（Ｓｆ）－１ｎ（（Ｄ／Ｄ０）βγ十δ）／γ证明此方程式正确描述了林分自稀疏过程。方程式中δ由林分初始决定，β是Ｒｅｉｎｅｋｅ自稀疏系数。Ｓｆ为最大密度指数，γ是自稀疏指数．采用Ｆ检验方法证明，林分最大密度指数相当稳定且与立地，地区，年龄和初始状态无关，γ值也与立地，地区，年龄和初始状态无关，但可能存在较大的抽样误差。
The Self-thinning equation of even aged pure stands, that was proposed by one of the authors,was tested.The equation is Testing result showed that the processes of self-thinning was properly describedby the equation where δ,in the equation,was determined by a initial state of a stand.β denoted Reineke's self-thinning coefficient. Sf was the maxmum density index,γwas self-thinning powers F-test was emploied.The results show that maxmum density index of stand was close to a constant for a certain species but independent from site,region where stand located,stand age and initial state of the stand.The value of δwas also independent from site,region,age and initial state,but a bigger sampling error could exist.
出处
《林业科学》
CAS
CSCD
北大核心
1995年第1期27-34,共8页
Scientia Silvae Sinicae
基金
自然科学基金
