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甘蔗渣炭对湿润铁铝土酶活性的影响研究
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  • 英文篇名:Effect of Sugarcane Bagasse Biochars on Enzyme Activities of Latosol
  • 作者:郑慧杰 ; 徐豪东 ; 王学良 ; 邓万刚
  • 英文作者:ZHENG Hui-jie;XU Hao-dong;WANG Xue-liang;DENG Wan-gang;College of Tropical Agriculture and Forestry, Hainan University;Institute of Soil Science, Chinese Academy of Sciences;University of Chinese Academy of Sciences;
  • 关键词:生物炭 ; 湿润铁铝土 ; 酶活性
  • 英文关键词:Biochar;;Latosol;;Enzyme activity
  • 中文刊名:TRTB
  • 英文刊名:Chinese Journal of Soil Science
  • 机构:海南大学热带农林学院;中国科学院南京土壤研究所;中国科学院大学;
  • 出版日期:2018-10-06
  • 出版单位:土壤通报
  • 年:2018
  • 期:v.49;No.296
  • 基金:国家自然科学基金项目(41161053);; 海南耕地改良关键技术研究与示范专项(HNGDxf)资助
  • 语种:中文;
  • 页:TRTB201805016
  • 页数:6
  • CN:05
  • ISSN:21-1172/S
  • 分类号:107-112
摘要
为探究生物炭对湿润铁铝土酶活性的影响,以甘蔗渣分别在300、500和700℃下慢速炭化1 h制得的甘蔗渣炭为研究材料,分别以炭土比0%、0.5%、1%、2%、5%、10%和15%的用量加入土壤中,在土柱中培养360 d后,分析甘蔗渣炭对土壤脲酶、蔗糖酶、过氧化氢酶和硝酸还原酶活性的影响。结果表明:700℃甘蔗渣炭抑制土壤脲酶活性;甘蔗渣炭显著促进土壤蔗糖酶活性,且酶活性随制炭温度和炭添加量的升高而增加;制炭温度和甘蔗渣炭添加量中,炭添加量为土壤过氧化氢酶活性的主要影响因素;甘蔗渣炭显著抑制土壤硝酸还原酶活性。
        In order to explore the effect of biochars on enzyme activities of Latosol, biochar was produced from sugarcane bagasse pyrolyzed at 300, 500, and 700 ℃ respectively as research material in this study. Then biochars were added to air-dried Latosol columns at rates of 0, 0.5, 1, 2, 5, 10, and 15%(biochar/soil) separately, and the activities of urease, sucrase, catalase and nitrate reductase were tested after 360-day cultivation. The results showed that sugarcane bagasse biochars carbonized at 700 ℃ inhibited the activities of urease. Sugarcane bagasse biochars significantly promoted the activities of sucrase, and the enzyme activities increased with the increase of carbonization temperature and the amount of biochar addition. The amount of biochar addition was the main factor of the catalase activities. Sugarcane bagasse biochars significantly inhibited the nitrate reductase activities.
引文
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