tree-stage
1.MULTIVARIATE QUANTITATIVE STUDY ON SINGLE TREE GROWTH STAGE OF NATURAL KOREAN PINE
8.In the paper, the pulping properties have been researched, by a two-stage treatment APMP process, of the young tree of TriploidChinese Poplar that grow in saline soil. Comparisons respectively with the 5-year Triploid Chinese Poplar and the young tree of Populu Nigrain normal soil show that the saline soil environment has no obvious effects on APMP-pulping properties of Triploid Chinese Poplar.
9.According to the assessment &acceptance management characteristics and demands of S&T Project in China,this paper discusses and builds the index system of S&T project assessment &acceptance,depicts the stage assessment &acceptance methods,and then constructs the decision model based on C4.5 decision tree method.

