浙江农业学报 ›› 2016, Vol. 28 ›› Issue (10): 1745-1754.DOI: 10.3969/j.issn.1004-1524.2016.10.17

• 环境科学 • 上一篇    下一篇

生物质炭施入对白浆土碳氮变化的影响

代琳, 聂颖, 冯露, 许毛毛, 丁弈君, 徐红涛, 王宏燕*   

  1. 东北农业大学 资源与环境学院,黑龙江 哈尔滨 150030
  • 收稿日期:2016-03-16 出版日期:2016-10-15 发布日期:2016-11-20
  • 通讯作者: 王宏燕,E-mail:why220@126.com
  • 作者简介:代琳(1987—),男,黑龙江鸡西人,博士研究生,研究方向为农业生态学。E-mail:penny_hardway@126.com
  • 基金资助:
    黑龙江省科技计划项目(GA10B502); 东北农业大学博士后科研基金项目(2012RCB95)

Effect of biochar on carbon and nitrogen content of albic soil

DAI Lin, NIE Ying, FENG Lu, XU Mao-mao, DING Yi-jun, XU Hong-tao, WANG Hong-yan*   

  1. College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
  • Received:2016-03-16 Online:2016-10-15 Published:2016-11-20

摘要: 通过大田试验方法,研究分析生物质炭不同施入量(0、10、20、30 t·hm-2)对旱作农田白浆土土壤碳、氮变化的影响。结果表明,生物质炭施入土壤可有效提高土壤有机质(SOM)、全氮(TN)、微生物生物量碳(MB-C)、微生物生物量氮(MB-N)、硝态氮(NO3--N)、铵态氮(NH4+-N)含量,且这些指标均随施入量的增加而提高。与对照(CK)处理相比,土壤SOM与TN含量分别提高了6.88%~43.77%、1.68%~15.91%,土壤MB-C与MB-N分别提高了9.76%~60.88%、6.72%~68.91%,且均在30 t·hm-2的施用量下达到最大值。添加生物质炭可以显著提高各深度土层NH4+-N和NO3--N含量,总体表现为0—10 cm>10—20 cm>20—30 cm。建议以30 t·hm-2生物质炭为白浆土旱作农田土壤的最佳施用量。

关键词: 生物质炭, 白浆土, 碳,

Abstract: In the present study, the effect of different biochar application rate (0,10,20,30 t·hm-2) on soil carbon and nitrogen content was explored via field test. It was shown that application of biochar increased contents of soil organic matter (SOM), total nitrogen (TN), microbial biomass carbon (MB-C), microbial biomass N (MB-N), nitrate (NO3--N) and ammonium (NH4+-N), and the more application, the higher the contents. Compared with CK, SOM, TN, MB-C, MB-N content was increased by 6.88%-43.77%, 1.68%-15.91%, 9.76%-60.88%, 6.72%-68.91%, respectively. The highest contents for above indexes were all reached at the highest biochar application rate. Application of biochar significantly increased NH4+-N and NO3--N content in every soil depth, and showed an overall tendency of 0-10 cm>10-20 cm>20-30 cm. Thus, application of 30 t·hm-2 was recommended for albic soil.

Key words: biochar, albic soil, carbon, nitrogen

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