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培育优质水曲柳用材林的配套技术,研究结果表明:采用母树林、种子园、雄性无性系采穗圃其子代遗传增益分别为5%,10%,12.5%。最适宜生长立地条件是排水良好、土层肥沃的阴坡中部凹形地带,其生长量比其它地形提高76.92%。水曲柳最佳混交树种为落叶松,混交方式为带状混交,带宽为5~10m为宜。水曲柳适宜的造林密度5000株/hm2。适宜的庇荫度为40%。平茬最佳季节在冬季,其萌发率96.67%,平茬的部位是根际上部,最佳年龄为3~5年。
The results showed that the genetic gain of offspring from the mother tree groves, the seed orchard and the male clones was 5%, 10% and 12.5%, respectively. The most suitable growth site conditions are well-drained, fertile soil in the mid-shady area of the shady slope, which grows 76.92% more than other terrain. Ash is the best mixed tree species of larch, mixed with ribbons mixed mode, the bandwidth of 5 ~ 10m is appropriate. Ash suitable afforestation density 5000 / hm2. The appropriate shade is 40%. The best season of stubble in winter, the germination rate of 96.67%, stubble site is the upper rhizosphere, the best age of 3 to 5 years.