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应用生态学报 ›› 1999, Vol. 10 ›› Issue (3): 286-288.

• 研究论文 • 上一篇    下一篇

农桐复合系统林带结构优化模式的研究

杨修1, 吴刚1, 黄冬梅2, 武本玉3   

  1. 1. 中国科学院生态环境研究中心系统生态室, 北京 100080;
    2. 海南大学计算中心, 海口 570228;
    3. 洛阳市西苑公园, 洛阳 471003
  • 收稿日期:1998-04-16 修回日期:1998-05-30 出版日期:1999-05-25 发布日期:1999-05-25
  • 通讯作者: 杨修,男,36岁,博士后,主要从事农林复合经营、乡村可持续发展及退化生态系统的恢复与重建研究,发表科研论文多篇,并获得多项科研成果奖励.E-mail:yangxiu@mail.rcees.ac.cn E-mail:yangxiu@mail.rcees.ac.cn
  • 基金资助:

    中国科学院封丘农业生态开放实验站开放基金资助项目(A950701).

Structure optimization of Paulownia-belt in Paulownia-crop integrated system

Yang Xiu1, Wu Gang1, Huang Dongmei2   

  1. 1. Research Center for Eco Environmental Sciences, Academia Sinica, Beijing 100080;
    2. Hainan University, Haikou 570228
  • Received:1998-04-16 Revised:1998-05-30 Online:1999-05-25 Published:1999-05-25

摘要: 以麦桐复合经营为例,研究了林带的不同配置结构、林带覆盖率与小麦产量之间的关系,并通过一系列数学方法实现了林带结构的优化。结果表明,在一个轮伐期内,泡桐林带覆盖率累计均值为10.1%~10.9%时,小麦相对产量累计均值最大(105.4),为最优林带覆盖率累计均值。最优林带距(D)与轮伐期(T)之间的关系为:D=0.600+11.042T-0.787T2+0.0273T3(R2=99.9%).

关键词: 麦桐复合经营, 林带覆盖率, 林带覆盖率累计均值, 林带距, 轮伐期, 澜沧江, 跳跃变异, 统计试验, 水文时间序列, 气候变化

Abstract: In this article, a Paulownia-wheat intercropping system was used as an example to study the relationships of wheat yield with shelterbelt structure and its coverage. The optimized structure of Paulownia-belt was formulated through a series of mathematical models. The results show that during one rotation of Paulownia, the average of relative accumulative wheat yield reached the highest (105.4) when the average of accumulative shelterbelt coverage was 10.1~ 10.9 % which is the best one. The regression equation of the optimized distance (D) and Paulownia rotation period (T) is showed as follows: D=0.600+11.042T-0.787T2+0.0273T3(R2=99.9%) .

Key words: Paulownia-wheat intercropping, Shelterbelt coverage, Average of accumulative shelterbelt coverage, Shelterbelt distance, Rotation, climate change., statistical experiment, Lancang River, abrupt change, hydrological time series