Re-evaluation of organic carbon pool from land surface down to bedrock on China’s Loess Plateau
作者: Xiaoxu JiaHaiming WuMing’an ShaoLaiming HuangXiaorong WeiYunqiang WangYuanjun Zhu
作者单位: 1State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling 712100, China
2Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
3College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
4State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an, Shaanxi 710061, China
刊名: Agriculture, Ecosystems and Environment, 2020, Vol.293
来源数据库: Elsevier Journal
DOI: 10.1016/j.agee.2020.106842
关键词: Carbon poolCarbon sequestrationVertical distributionDeep loess depositEarth’s critical zone
原始语种摘要: Abstract(#br)Large reservoirs of organic carbon (OC) store in deep soils (>1 m below land surface) are not usually included in regional and global terrestrial C inventories. Chinaös Loess Plateau (CLP), which has the worldös deepest loess deposit and has experienced long-term, intensive agricultural and revegetation activities, could contain large stores of OC. In this study, the distribution of OC concentration and stock across the entire loess profile from the ground surface down to the bedrock (56–205 m) was assessed at five sites (Yangling, YL; Changwu, CW; Fuxian, FX; Anösai, AS; and Shenmu, SM) under three land use types (farmland, grassland and shrubland). There was pronounced decrease in mean OC concentration with increasing depth along loess profiles at all the investigated...
全文获取路径: Elsevier  (合作)
影响因子:2.859 (2012)

  • bedrock 基岩
  • loess 黄土
  • vegetation 植被
  • precipitation 沉淀
  • carbon 
  • concentration 浓度
  • climatic 气候的
  • accumulation 堆积
  • topmost 最顶层
  • surface