• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Polar Geography >SPATIAL ANALYSIS OF SOILS, VEGETATION, PRODUCTIVITY, AND CARBON STORED IN MOUNTAIN TUNDRA ECOSYSTEMS, KHIBINY MOUNTAINS, RUSSIA
【24h】

SPATIAL ANALYSIS OF SOILS, VEGETATION, PRODUCTIVITY, AND CARBON STORED IN MOUNTAIN TUNDRA ECOSYSTEMS, KHIBINY MOUNTAINS, RUSSIA

机译：俄罗斯K​​hibiny山地Tundra生态系统中土壤，植被，生产力和储存的碳的空间分析

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Data on the distribution of plant communities, their productivity, and major carbon stores held in mountain tundra vegetation and soils are presented. Extreme snow-bed communities had the lowest total biomass (662 g/m~2), primarily in the main root portion in mineral soil horizons. Dwarf shrub—dominated heath on a gentle mountain slope had the highest total biomass (2406 g/m~2), with woody perennial stems prevailing in the above-ground portion, and the main root portion concentrated in the organic horizon. Grass and sedge meadows situated in a hollow had the greatest total net primary production (215 g/m~2), and roots were evenly distributed throughout the soil profile. The total amount of carbon stored in the ecosystem included carbon stored in above- and below-ground biomass, in the organic horizon, and in mineral soil horizons to a depth of 30 cm. Total carbon was lowest in snow-bed and lichen-dominated tundra (6183 g/m~2 and 6337 g/m~2, respectively), and highest in dwarf shrubs and grass-dominated tundra (25,261 g/m~2 and 20,407 g/m~2, respectively), the latter being comparable to total carbon stored in boreal forest ecosystems. Most of the carbon (95-97%) in tundra ecosystems was stored in soils (organic and mineral soil horizons).
机译：给出了有关植物群落分布，生产力以及在冻原苔原植被和土壤中主要碳储量的数据。极端雪床群落的总生物量最低（662 g / m〜2），主要发生在矿物土壤层的主要根部。矮灌木丛为主的荒地在平缓的山坡上具有最高的总生物量（2406 g / m〜2），其中多年生木本植物主要生长在地上部分，而根的主要部分则集中在有机层中。空心的草草甸和莎草草甸的总净初级生产力最高（215 g / m〜2），并且根系均匀分布在整个土壤剖面中。生态系统中存储的碳总量包括地下和地下生物量，有机层以及矿物土壤层中30厘米深处的碳。在雪床和以地衣为主的苔原中，总碳最低（分别为6183 g / m〜2和6337 g / m〜2），在矮灌木和以草为主的苔原中最高（25,261 g / m〜2和20,407） g / m〜2），后者与北方森林生态系统中储存的总碳相当。苔原生态系统中的大部分碳（95-97％）存储在土壤中（有机和矿物土壤层）。

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