生物炭对不同类型土壤中Olsen-P和CaCl_2-P的影响  

Effect of Boichar on Olsen-P and CaCl_2-P in Different Types of Soil

作　　者：才吉卓玛[1] 翟丽梅[1] 习斌[1] 刘宏斌[1] 任天志[1] 

机构地区：[1]农业部面源污染控制重点实验室,中国农业科学院农业资源与农业区划研究所,北京100081

出　　处：《土壤通报》2014年第1期163-168,共6页Chinese Journal of Soil Science

基　　金：国家自然科学基金资助项目(41203072)资助

摘　　要：为了解生物炭施入不同类型土壤后对Olsen-P和CaCl2-P的影响,通过室内土壤培养试验,研究施用2%(20 t hm-2)、4%(40 t hm-2)、8%(80 t hm-2)比例的生物炭条件下土壤中Olsen-P、CaCl2-P含量变化,以探讨不同类型土壤中施入生物炭后Olsen-P和CaCl2-P含量变化的差异。结果表明:(1)红壤、水稻土、潮褐土、潮土中施用生物炭后,土壤中Olsen-P含量显著增加(P<0.05),并随着生物炭施用比例增加而增大。(2)培养42天后,施用生物炭对红壤中CaCl2-P含量无显著的影响,水稻土、潮褐土、潮土中CaCl2-P含量则随着生物炭施用比例增加而显著增大。(3)在同一生物炭施用量条件下,潮褐土和潮土中Olsen-P和CaCl2-P的增加量均显著(P<0.05)高于红壤和水稻土。To understand the effect of boichar on Olsen-P and CaCl2-P in different types of soil, an incubation experiment was conducted to test the change of Olsen-P, CaCl2-P concentration in different types of soil with applying 2% （20 t hm-2）, 4% （40 t hm-2）, 8% （80 t hm-% ratio biochar in order to discuss the difference of the change of Olsen-P, CaCl2-P concentration in different types of soil applied biochar. The results showed： （1） Olsen-P concentration in red soil, paddy soil, cinnamon soil and alluvial soil significantly increased as biochar application ratio increased. （2） After 42 days of incubation, CaCl2-P concentration in paddy soil, cinnamon soil and alluvial soil increased along with the increase of application ratio of biochar,while red soil had no significant effect on CaCl2-P concentration. （3） In the same application ratio biochar treatments, Olsen-P concentration and CaCl2-P concentration in cinnamon soil and alluvial soil were higher than them in red soil and paddy soil.

关 键 词：生物炭 土壤 磷 Olsen—P CaCl2-P 

分 类 号：S156.99[农业科学—土壤学]