• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>ICEEP 2012;International Conference on Energy and Environmental Protection >The dynamics of the litter and soil organic matter in four densities of hybrid Larch plantations
【24h】

The dynamics of the litter and soil organic matter in four densities of hybrid Larch plantations

机译：杂交落叶松人工林四种密度凋落物和土壤有机物的动态

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

摘要

The dynamics of the litter and soil organic matter content of four densities (A: 2500/hm~2,B:3300/hm~2, 2 2 C:4400/hm~2, D:6600/hm~2) of hybrid Larch plantations were studied in Jiangshanjiao forest farm of Heilongjiang province of China. (1) The annual litter stock under the hybrid Larch plantation was 4634.6 ~ 5453.4 kg/hm~2, and the decreased order of the annual litter stock was under density of 4400, 3300 2500and 6600 trees per hectare. The decrease order of the litter stock no matter undecomposition and decomposition litter was under density of 3300, 4400, 2500 and 6600 trees per hectare, and the rate of the undecomposition litter stock to total litter stock was bigger than 50 %. (2) The seasonal dynamic of the soil organic matter under different densities of plantations basically had the same principle. In 0~10 cm soil layer, the soil organic matter was higher in June and August, was lower in May and July, and was flat or increased slightly in September, but was decreased in September under the plantations with density 4400 and 3300 trees per hectare. The soil organic matter in 10~20 cm and 20~40 cm layer had the same change principle, but the change range was flat and smooth. For the same density of plantation, the difference of the organic matter in the same soil layer between the different months was significantly (P < 0.05). (3) The difference of the soil organic matter content in the same soil layer under different densities of hybrid Larch plantation was significantly, and the decreased order of the soil organic matter in average was under density 4400, 3300, 6600 and 2500 trees per hectare. The results would provide the theories basis for manage the hybrid Larch plantations.
机译：凋落物和土壤有机质含量的动态（A：2500 / HM〜2，B：3300 / HM〜2,2 C：4400 / HM〜2，D：6600 / HM〜2）的杂种落叶松植物于中国黑龙江省的江山街林场。 （1）杂交落叶松人工植物下的年垃圾股票为4634.6〜5453.4千克/赫姆〜2，年垃圾股市下降的秩序下降4400,3300 2500和每公顷6600棵树。垃圾库存的减少顺序无论不确定和分解凋落物都在3300,4400,2500和6600年的每公顷的密度下，并且不确定的垃圾储备到总凋落物库存的速度大于50％。 （2）在种植园不同密度下的土壤有机质的季节性动态基本上具有相同的原理。在0〜10厘米的土层中，6月和8月土壤有机物较高，5月和7月较低，9月份略有平整或略有增加，但在9月份下跌，九月下跌，浓度为4400和3300棵树3300棵树公顷。 10〜20厘米和20〜40cm层中的土壤有机物具有相同的变化原理，但变化范围是平坦的。对于相同的种植体密度，不同月份之间同一土壤层中有机物质的差异显着（P <0.05）。 （3）在不同密度的杂交落叶松人工林下，相同土壤层中的土壤有机物质含量的差异显着，平均土壤有机质的下降顺序为每公顷的密度4400,3300,6600和2500棵树。结果将为管理杂交落叶松人工林提供理论基础。

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