水土保持学报2013，Vol.27Issue(4)：120-124,190,6.
生物炭添加对黄土高原典型土壤田间持水量的影响
Impact of Biochar Addition into Typical Soils on Field Capacity in Loess Plateau
摘要
Abstract
In order to explore the influence of biochar on the soil water,the effects of two different types of biochar(apple tree branch-derived biochar and sawdust-derived biochar)with three different biochar addition rates(2％,5％,10％,W/W)on the field capacities of three typical Loess Plateau soils including cumulic cinnamon soil,loessial soil and aeolian soil were studied using welcox method.Results indicated that compared to the treatment without biochar,the field capacities of cumulic cinnamon soil,loessial soil,and aeolian soil averagely increased by 2.77％,3.09％,4.17％,respectively,the mean increment of the field capacities of three soils added with apple tree branch-derived biochar was 4.67％,which was greater than that of saw dust-derived biochar(2.02％).Another phenomenon was also observed that the field capacity increased with increasing addition rate,and the treatments whose addition rate of apple tree branch biochar was 10％,showing the greatest positive effect.In conclusion,the field capacities of three soils were significantly increased after biochar addition,differences of the effects of biochar type and addition amount on the field capacities of different soils were extensive.关键词
生物炭/土壤/田间持水量/黄土高原Key words
biochar/ soil/ field capacity/ Loess Plateau分类
农业科技引用本文复制引用
颜永毫,郑纪勇,张兴昌,李世清..生物炭添加对黄土高原典型土壤田间持水量的影响[J].水土保持学报,2013,27(4):120-124,190,6.基金项目
国家自然科学基金项目(41071195) （41071195）
中国科学院西部行动计划项目(KZCX2-XB3-13) （KZCX2-XB3-13）
校科研专项项目(QN2011145) （QN2011145）
