CH 4 fluxes and diffusion within soil profiles subjected to different fertilizer regimes on China’s Loess Plateau
作者: Weige NanShiqing LiZhibao DongPengwei Yao
作者单位: 1School of Geography and Tourism of Shaanxi Normal University, Shaanxi, Xi’an, 710119, China
2State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, 712100, China
3College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, China
刊名: Agriculture, Ecosystems and Environment, 2020, Vol.287
来源数据库: Elsevier Journal
DOI: 10.1016/j.agee.2019.106679
关键词: CH 4DiffusionTransformationConsumptionFertilizer
原始语种摘要: Abstract(#br)To better understand the effects of fertilizer on soil methane (CH 4 ) diffusion and consumption in semi- arid region, we investigated the subsurface CH 4 concentrations at seven depths in the mineral soil and analysed the CH 4 fluxes between soil horizons at the Changwu Agro-Ecological Station on China’s Loess Plateau. The results showed that dryland soil was a weak net CH 4 sink. The CH 4 concentration and diffusion decreased with increasing depth to a depth of 50 cm, and then remained low from 50 to 100 cm. Much of the soil CH 4 diffusion and transformation occurred in the top 20 cm, but maximum CH 4 production occurred at a depth of 7 cm, and maximum CH 4 consumption occurred at a depth of 15 cm. Soil moisture could significantly inhibit gas diffusion and accelerate the...
全文获取路径: Elsevier  (合作)
影响因子:2.859 (2012)

  • China 中国
  • diffusion 扩散
  • consumption 消耗
  • fertilizer 肥料
  • especially 特别地
  • successfully 成功地
  • transformation 变换
  • production 生产
  • accelerate 促进
  • system