• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Sustainable Future for Human Security >The growth of selected Shorea spp in secondary tropical rain forest: the effect of silviculture treatment to improve growth quality of Shorea spp
【24h】

The growth of selected Shorea spp in secondary tropical rain forest: the effect of silviculture treatment to improve growth quality of Shorea spp

机译：二级热带雨林中所选沉苦SPP的生长：造林治疗造林效果，提高沉腹增长质量

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Dipterocarpaceae is the main species of tropical rain forest in Indonesia, Malaysia, Brunei and Phillippines and it ranges in eastwards as far as eastern New Guinea. This species is primary product in tropical rain forest of forest concessions. Recently, the quality and quantity of tropical rain forest are decreasing because of the land convertion become forest plantation; illegal logging and shifting cultivation. One of the strategies to reduce the forest degradation is enrichment planting on logged over forest (LOA) using dipterocarps species. The plantation trial was established with two (2) spacing, two (2) fertilizer dosages and five (5) Shorea spp as treatment to support the enrichment planting program in LOA. The research design was split-split plot design with 4 replications. The main plot was 2 spacings i.e. 6x2 m ; and 6x4 m. The sub plot was 2 dosages of NPK Fertilizer i.e. 0 and 100 gr species~(-1) . The sub-sub plot was 5 species of Shorea spp., i.e. Shorea leprosula, S.platyclados, S.parvifolia, S.virescens and S.johorensis. Each treatment was established in sguare plot (4x10 trees/treatment). The reserach result showed that spacing, fertilizer dosage and interaction between treatmens were not significant, while species was significant at ta=0.05 in the dipterocarps early growth. The highest growth was S.leprosula of DBH and high variables where the value of DBH and high variables were 8.90 cm (2.9 cm.year~(-1) of mean annual increment/MAI) and 6.31 m (2.1 m. year~(-1) of MAI) respectively. The lowest growth was S.virescens both on high and DBH variables where the value of DBH and high were 2.27 cm. year~(-1) and 1.40 m. year~(-1) respectively.
机译：龙脑香科是热带雨林在印尼，马来西亚，文莱和Phillippines的主要品种，并在向东最远范围为东部新几内亚。本种在森林特许权的热带雨林的主要产品。近日，质量和热带雨林的数量是因为土地皈依成为人工林的下降;非法记录和轮作。其中一个策略，以减少森林退化的是龙脑香使用记录的物种对森林（LOA）补植。种植试验建立了两（2）的间距，两（2）肥料剂量和五（5）娑罗属如治疗以支持LOA富集种植计划。这项研究的设计是裂裂区设计，重复4次。主要情节为2的间距，即6x2的米;和6x4微米。子情节2个剂量NPK肥料的即0和100克物种〜（-1）。分分情节为5种娑罗属。，即娑罗leprosula，S.platyclados，S.parvifolia，S.virescens和S.johorensis。每个处理成立于sguare图（4×10株/处理）。该启发式算法结果表明treatmens之间的间距，肥料剂量和相互作用不显著，而物种是显著在TA =在龙脑香早期生长0.05。增长最快的是胸径和高度变量S.leprosula其中胸径和高度变量的值分别为8.90厘米（2.9 cm.year〜（-1）的年平均递增/ MAI）和6.31米（2.1米〜一年（ -1分别）MAI的）。最低增长S.virescens上都高，DBH变量其中DBH和高的值分别为2.27厘米。年〜（-1）和1.40米年〜（-1）。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号