王永健,伏耀龙,王益权,喻建波,徐海,王金贵,张育林.油页岩有机碳矿化特征及在栽培基质中应用可行性分析[J].干旱地区农业研究,2009,27(5):137~143
油页岩有机碳矿化特征及在栽培基质中应用可行性分析
Analysis of mineralization characters of oil shale organic carbon and feasibility of its application to culture matrix
  
DOI：10.7606/j.issn.1000-7601.2009.05.26
中文关键词:  温度  水分  油页岩基质  有机碳  田间持水量
英文关键词:temperature  water  oil shale matrix  organic carbon  field capacity
基金项目:陕西省科技厅科技计划(2005K-G16)
作者单位
王永健 College of Resources and Environment Northwest A ＆F University， Yangling， Shaanxi 712100， China 
伏耀龙 College of Resources and Environment Northwest A ＆F University， Yangling， Shaanxi 712100， China 
王益权 College of Resources and Environment Northwest A ＆F University， Yangling， Shaanxi 712100， China 
喻建波 College of Resources and Environment Northwest A ＆F University， Yangling， Shaanxi 712100， China 
徐海 College of Resources and Environment Northwest A ＆F University， Yangling， Shaanxi 712100， China 
王金贵 College of Resources and Environment Northwest A ＆F University， Yangling， Shaanxi 712100， China 
张育林 College of Resources and Environment Northwest A ＆F University， Yangling， Shaanxi 712100， China 
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中文摘要:
      探讨油页岩有机碳矿化分解过程、有机碳组分变化特征以及环境因素作用规律可为评价油页岩在栽培基质中应用的可行性提供科学依据。试验在室内控制温度和水分条件下,分析了洗盐和未洗盐油页岩有机碳矿化动态变化特征。结果表明:油页岩基质在60 d培养期间,温度升高10℃使未洗盐基质总矿化量分别增加2%~28%(100%田间持水量)、2%~22%(80%田间持水量)和1%~15%(60%田间持水量);洗盐基质则分别增加2%~17%(100%田间持水量)、1%~5%(80%田间持水量)和7%~14%(60%田间持水量)。将第60 d基质中活性有机碳含量进行回归分析,发现两种不同供试油页岩活性有机碳含量与温度和水分之间均呈正相关关系;未洗盐油页岩活性有机碳含量与温度和水分间相关性不显著,而洗盐后油页岩活性有机碳含量与温度和水分之间相关性显著(P=0.0214)。用一级动力学方程拟合油页岩基质有机碳矿化动态得到未洗盐基质分解速率常数最大达1.2×10-3/d,洗盐基质其分解速率常数介于0.5×10-3~0.7×10-3/d。油页岩在长达60 d的培养过程中表现为有机碳持续分解、活性有机碳递增,证实其在基质栽培中的应用将对养分持续供给和维护作物根系生理活性发挥重要作用。
英文摘要:
      To explore mineralization decomposition process, components' change characteristics of organic carbon of oil shale and the role of environmental factors can provide adequate scientific basis for the feasibility and the value of oil shale in matrix application.With oil shale for culture matrix (or Medium) , we studied organic carbon mineralization characteristics of the dynamic changes in the interior control conditions during the cultivation.We also discussed the influences of organic carbon mineralization under different temperature, water and salt washing conditions.The result showed that during the 60 d cultivation of the oil shale matrix, temperature increased by 10 degree Centigrade and it had made the total mineralization increased by 2%～28% (100%FC) , 2%～22% (80%FC) and 1%～15% (60%FC) in the unwashed-salt matrix respectively and 2%～17% (100%FC) , 1%～5% (80%FC) and 7%～14% (60%FC) in the washed-salt matrix.Through regression analysis of the active organic matter content of the matrix, it was found that in the two kinds of tested oil shale matrix the active organic carbon content had positive correlation with both temperature and water;in unwashed-salt matrix, the active organic carbon content had no significant correlation with temperature or water, but there were significant correlation on washed-salt matrix (P=0.0214) .The dynamics of oil shale matrix organic carbon mineralization preferably followed the first-order kinetics, and the most constant of the unwashed-salt matrix decomposition rate constant was 1.2×10-3/d, while the washed-salt matrix was between 0.5×10-3/d～0.7×10-3/d.During the 60-day period of oil shale cultivation experiment, the organic matter released slowly and the active organic matter content increased as time went on.It was proved that the matrix played an imperative function in supplying nutrients continuously to plant and maintaining roots physiological activity in substrate culture.
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