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中国农学通报

中国农学通报 ›› 2018, Vol. 34 ›› Issue (13): 106-112.doi: 10.11924/j.issn.1000-6850.casb17040030

所属专题： 生物技术

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

不同耕作方式下旱作农田土壤酶活性与 有机碳的关系研究

刘晓芳,李晓婷,李立军,田福东,丁宁   

  1. 通辽市农业科学院,内蒙古农业大学燕麦楼,内蒙古农业大学燕麦楼,通辽市农业科学院,通辽市农业科学院
  • 收稿日期:2017-04-07 修回日期:2018-04-17 接受日期:2017-06-23 出版日期:2018-05-07 发布日期:2018-05-07
  • 通讯作者: 刘晓芳
  • 基金资助:
    国家自然科学基金项目“阴山北麓旱作农田不同农作模式的固碳机制及调控途径”(31260308)；国家燕麦荞麦产业技术体系项目“土壤肥 料与水岗位”(CARS-08-B-5)。

Relationship Between Soil Organic Carbon and Enzyme Activity in Rain-fed Field Under Different Tillage Methods

  • Received:2017-04-07 Revised:2018-04-17 Accepted:2017-06-23 Online:2018-05-07 Published:2018-05-07

摘要： 为了明确不同耕作方式对土壤酶活性与有机碳的关系,研究了以传统翻耕为对照,3种耕作方式浅松、浅旋和深松下两者的变化趋势及相关性。结果表明：随着土壤有机碳含量的增加土壤酶活性也随之增加,土壤过氧化氢酶、脲酶、碱性磷酸酶活性和有机碳为不同耕作方式大于传统耕作,不同耕作方式产量较传统耕作显著提高,最高提高92.18%；在燕麦生育旺盛期过氧化氢酶、蔗糖酶和脲酶活性呈极显著的正相关关系。因此,浅松、浅旋和深松在旱作农田条件下有利于土壤有机碳含量的积累、产量和土壤酶活性的提高。

关键词: 钝化剂, 钝化剂, 农田土壤, 重金属形态

Abstract: To clarify different tillage on soil organic carbon and soil enzymes activity relationship, this study analyzes?three kinds of tillage methods with trends and correlations: shallow pine (QS), light spin (QX) and subsoiling (SS), and?traditional tillage (CT) as the control.?The result shows: With the soil organic carbon content increase, soil enzyme activity also increases. After using different tillage methods, soil catalase, urease, alkaline phosphatase activity and organic carbon content greater than CT. Compared with CT, different tillage systems also significantly improve yield of oats, and the highest increased rate is 92.18%. There was a significant positive correlation between catalase, invertase activity and urease activity during oat growing season. Therefore, QS, QX and SS are suitable for soil organic carbon content accumulation, yield improvement, and soil enzyme activities increase under drought farmland condition.

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