杉木幼林群落生产量的研究

杉木人工林是我国特有的经营历史较久的人工林群落之一。其经营集约的程度和独特的栽培方式,在国内外享有很高声誉。长期以来,我国南方山区群众在培养杉木人工林的实践中,就有一种“林粮间作”(或称农林间作)的经验。林粮间作的产生,是山区群众在长期的生产实践中,认识森林自然生长和发展规律的基础上,从林木与林木之间,林木与其它层次的植被之间,以及它们与环境之间的相互关系中,所找到的一种适合经济要求和生产需要的

STUDIES ON THE PRODUCTION OF YOUNG CUNNINGHAMIA LANCEOLATA COMMUNITIES

The field experiment was carried out at Huitong Forest Ecological Research Station in southwest part of Hunan Provice Results obtained from three types C. lanceolata intercropped with maiza (type A); C, lanceolata intercropped with upland rice (type B) and C. lanceolata only (type C) during 3 years are summarized as follows:1. The horizontal structure of trees and crops varies with the stand ages; the coverage of trees increases with increasing the stand ages and the coverage of crops decreases with increas...