土壤2017，Vol.49Issue(6)：1172-1178,7.DOI:10.13758/j.cnki.tr.2017.06.016
不同生物质炭对海南砖红壤性质及N2O排放的影响
Effects of Different Biochars on Hainan Latosol Properties and N2O Emission
摘要
Abstract
Temperature and the raw materials can influence biochar properties, and biochar can affect the N2O emission from soil. This study is to screen the biochar suitable for Latosol in Hainan. Four Hainan gramineous plant materials were selected to produce biochars under 300℃, 500℃ and 700℃, respectively, and then the effects of the 12 types of biochars on Latosol properties and N2O emission were studied with the indoor cultivation. The results showed that all biochars significantly increased soil pH value, promoted the contents of soil organic carbon, available phosphorus and rapid available potassium, and accelerated soil nitrification. Soil N2O emission was promoted by biochars derived under 300℃ but was inhibited by biochars derived under 500℃ and 700℃. Among all plant materials, soil N2O emission of bagasse biocgars derived under the pyrolysis temperature was the lowest, which is possibly due to the stable carbohydrate in the bagasse after sugar extraction. On the whole, the bagasse biochar derived under 500℃ is recommended tosoil improvement, which is more conducive to less N2O emission in tropical Latosol soil.关键词
砖红壤/原料/温度/生物质炭/N2O排放Key words
Latosol/Raw materials/Temperature/Biochar/N2O emission分类
农业科技引用本文复制引用
季雅岚,索龙,解鈺,王小淇,方雅各,杨霖,赵伶茹,孟磊..不同生物质炭对海南砖红壤性质及N2O排放的影响[J].土壤,2017,49(6):1172-1178,7.基金项目
国家自然科学基金项目(41261063 （）
41661051)和海南省自然科学基金项目(317070 （）
314046)资助. （）
