首页> 外文期刊>Eurasian Soil Science >Postpyrogenic Variability of Litter in Mountain Forests of Baikal Region
【24h】

Postpyrogenic Variability of Litter in Mountain Forests of Baikal Region

机译:贝加尔地区山区垃圾的后波动变异性

获取原文
获取原文并翻译 | 示例
       

摘要

The data of experimental studies on the postpyrogenic dynamics of the litter in mountain taiga cedar (Pinus sibirica), pine (Pinus sylvestris) and subtaiga forest-steppe pine (Pinus sylvestris) forests in the Baikal region are analyzed. Ground fires prevailing in this region transform the surface organic diagnostic horizons of soils and result in the formation of new pyrogenic organic horizons (Opir, OLpir, OL/Opir, OApir). The adverse impact of ground fires on the thickness, reserves, moisture capacity and fractional composition of forest litters is shown. The data on the chemical ash composition of litters, as well as the content of mobile microelement compounds is also given. The tendency of reducing the concentration of mobile elements in the organic horizons of soils from the taiga Siberian pine (cedar) altitudinal zonal complex (AZC) to the subtaiga forest-steppe pine AZCC of forest types was revealed. Forest fires were found to cause great quantitative and qualitative changes in the chemical composition of surface organic pyrogenic horizons; they are especially manifested in the transformation of their labile properties (?H, exchangeable cations, total and mobile nitrogen, etc.).
机译:分析了贝加尔地区山脉凋落物(Pinus Sibirica),松树(松树Sylvestris),松树(Pinus Sylvestris)和贝氏植物区的植物区森林 - 草原松树(Pinus Sylvestris)森林的实验研究。在该地区的地面火灾普遍地转化了土壤的表面有机诊断视野,并导致形成新的热原有机视野(OPIR,OLPIR,OL / OPIR,OAPIR)。显示了地面火灾对森林窝的厚度,储备,水分和分数组成的不利影响。还给出了凋落物的化学灰分组成的数据,以及移动微量元素化合物的含量。揭示了降低Taiga西伯利亚松(雪松)的土壤有机视野中的移动元素浓度的趋势。发现森林火灾造成表面有机热原理化学成分的巨大定量和定性变化;它们特别表现在其不稳定性质(ΔH,可交换阳离子,总和移动氮等)的转化中。

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