浙江农业学报 ›› 2019, Vol. 31 ›› Issue (1): 113-120.DOI: 10.3969/j.issn.1004-1524.2019.01.15

• 环境科学 • 上一篇    下一篇

稻虾共作对土壤有机碳的影响及其与土壤性状的关系

管勤壮1,2, 成永旭1,2,3, 李聪2, 王海峰2, 陈焕根4, 李嘉尧1,2,3,*   

  1. 1.上海海洋大学 水产与生命学院,水产科学国家级实验教学示范中心,上海 201306;
    2.上海海洋大学 水产与生命学院,农业农村部鱼类营养与环境生态研究中心,上海 201306;
    3.上海海洋大学 水产与生命学院,水产动物遗传育种中心上海市协同创新中心,上海 201306;
    4.江苏省渔业技术推广中心,江苏 南京 210036
  • 收稿日期:2018-03-05 出版日期:2019-01-25 发布日期:2019-04-09
  • 通讯作者: 李嘉尧,E-mail: jy-li@shou.edu.cn
  • 作者简介:管勤壮(1992—),男,湖北孝感人,硕士研究生,主要从事稻-克氏原螯虾共作的生态效应研究。E-mail: 1299945311@qq.com
  • 基金资助:
    上海市科委农业领域科技支撑项目(15391912100); 江苏省渔业科技类项目(D2017-1-1); 上海高校水产学高峰学科建设(2015-62-0908)

Changes of soil organic carbon and relationships with soil properties in rice-crayfish coculture system

GUAN Qinzhuang1,2, CHENG Yongxu1,2,3, LI Cong2, WANG Haifeng2, CHEN Huangen4, LI Jiayao1,2,3,*   

  1. 1. National Demonstration Center for Experiment Fisheries Science Education, College of Fisheries and Life, Shanghai Ocean University, Shanghai 201306, China;
    2. Center for Research on Environment Ecology and Fish Nutrition (CREEFN) of the Ministry of Agriculture and Rural Affairs, College of Fisheries and Life, Shanghai Ocean University, Shanghai 201306, China;
    3. Shanghai Collaborative Innovation for Aquatic Animal Genetics and Breeding, College of Fisheries and Life, Shanghai Ocean University, Shanghai 201306, China;
    4. Fisheries Technology Extension Center of Jiangsu Province, Nanjing 210036, China
  • Received:2018-03-05 Online:2019-01-25 Published:2019-04-09

摘要: 通过田间定位试验,以水稻单作为对照,研究稻虾共作模式对土壤有机碳的影响,采用Pearson(皮尔逊)相关性分析法,探讨稻虾田中土壤有机碳与土壤肥力、土壤酶活力的关系。结果表明:稻虾共作显著(P<0.05)增加了土壤有机质含量,但低C/N饲料投喂组的土壤有机碳含量显著(P<0.05)下降。稻虾共作条件下,土壤全磷、脲酶与有机碳呈显著(P<0.05)正相关,土壤有机质、纤维素酶与有机碳分别呈极显著(P<0.01)和显著(P<0.05)负相关。土壤铵氮与有机质呈显著(P<0.05)负相关,土壤纤维素酶与有机质呈显著(P<0.05)正相关。

关键词: 稻虾共作, 有机碳, 土壤酶活力

Abstract: A field experiment on rice-crayfish coculture was conducted to assess the influence on soil organic carbon in paddy field with regular rice monoculture as control. Pearson correlation analysis was introduced to explore the relationships within organic carbon, soil fertility and soil enzyme activities. It was shown that rice-crayfish coculture significantly (P<0.05) increased the contents of soil organic matter, but the soil organic carbon contents were significantly (P<0.05) decreased in rice-crayfish coculture with low C/N diet. Under rice-crayfish coculture, soil total phosphorus, soil urease showed significant (P<0.05) positive correlation with soil organic carbon, yet soil cellulose and soil organic matter showed significant negative correlation with soil organic carbon at P<0.01 and P<0.05, respectively. Soil ammonia nitrogen was significantly (P<0.05) negatively correlated with soil organic matter, yet soil cellulose was significantly (P<0.05) positively correlated with soil organic matter.

Key words: rice-crayfish coculture, organic carbon, soil enzyme activity

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