欢迎访问《应用生态学报》官方网站,今天是 分享到:

应用生态学报 ›› 2000, Vol. ›› Issue (5): 707-709.

• 研究论文 • 上一篇    下一篇

我国热带地区胶茶鸡农林复合系统氮循环研究

孟庆岩1, 王兆骞1, 宋莉莉2   

  1. 1. 浙江大学农业生态研究所, 杭州310029;
    2. 中国农业大学生物学院微生物系, 北京100094
  • 收稿日期:1999-01-20 修回日期:2000-06-12 出版日期:2000-09-25
  • 通讯作者: 孟庆岩,男,1971年生,博士,助理研究员,现于中国科学院遥感应用研究所工作,主要从事农业与生态环境遥感研究,已发表论文10余篇.E-mail:mqymqy@china.com
  • 基金资助:
    国家七部委生态农业试点县建设资助项目

N cycle of rubber-tea-chicken agro-forestry model in tropical area of China

MENG Qingyan1, WANG Zhaoqian1, SONG Lili2   

  1. 1. Agroecological Research Institute, Zhejiang University, Hangzhou 310029;
    2. China Agriculture University, Beijing 100094
  • Received:1999-01-20 Revised:2000-06-12 Online:2000-09-25

摘要: 以海南省文昌市典型的胶茶鸡农林复合系统模式为研究对象,以单作胶园、胶茶间作园为对照,采用定量研究与定性分析相结合的方法,研究其N循环规律.结果表明,胶茶鸡农林复合系统N循环率为43%,N输出量为196.5kg·hm-2,土壤N盈余量为237.6kg·hm-2,均最高.鸡子系统N产投比为91%,转化率较高.系统外N投入率比另两系统明显减少,系统内N循环量最大,为824.1kg·hm-2.该系统N循环活跃,具有较合理的N循环结构.

Abstract: The N cycle of rubber-tea-chicken eco agricultural model,a typical tropical agro forestry system in Wenchang municipality of Hainan province,was studied with quantitative experiment and qualitative analysis,compared with rubber and rubeer tea systems.The results showed that the N cycling rate,N output and soil surplus N of chicken garden were all the highest,being 43%,196.5% kg穐m-2 and 237.6 kg穐m-2,respectively.The N output/input rate of chicken sub-system was 91%,and the transformation rate was very high. Compared with the other two systems,the chicken garden had a decreased external N input rate, and its internal cycling N was the highest,being 824.1 kg穐m-2.rubber-tea chicken agro forestry system had a rational N cycling structure,and its N cycle was most active.