欢迎访问《生态学杂志》官方网站,今天是 分享到:

生态学杂志 ›› 2002, Vol. ›› Issue (4): 1-5,11.

• 研究报告 •    下一篇

低丘红壤复合农林系统光能竞争与生产力——以花生南酸枣间作为例

王兴祥, 张斌, 王明珠, 张桃林, 何圆球   

  1. 中国科学院南京土壤研究所红壤生态实验站, 南京, 210008
  • 收稿日期:2001-05-13 修回日期:2001-11-05 出版日期:2002-08-10
  • 基金资助:
    中国科学院知识创新工程项目(KZCX2-407);国家973项目(G1999011801)资助.

Competition for Light and Crop Productivity in Agro-forestrial Systems in Hilly Red Soil Region-A Case Study of Choerospondias axillaris Intercopping with Arachis hypogaea

Wang Xingxiang, Zhang Bin, Wang Mingzhu, Zhang Taolin, He Yuanqiu   

  1. Ecological Experimental Station of Red Soil, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008
  • Received:2001-05-13 Revised:2001-11-05 Online:2002-08-10

关键词: 退耕湿地, 湿地土壤, 磷, 吸附解吸特性, 菜子湖

Abstract: An agro-forestrial intercopping field experiment on Choerospondias axillaris cropped with Arachis hypogaea was undertaken in Subtropical China,to study the effect of agro-forestrial intercopping on photosynthetically active radiation(PAR) and yield of crop.The results showed that there was a significant decline in PAR and A.hypogaea yield in agro-forestrial systems.Compared to sole A.hypogaea, A.hypogaea yield in equivalent area was decreased by 35.9% and 44.6% in 5 year old and 9-year-old Choerospondias axillaris agro-forestrial systems,respectively.In addition,there was a significant spatial variability of PAR and A.hypogaea yield in agro-forestrial systems,and they increased with distance from tree line.Moreover, A.hypogaea yield had a significant correlation to PAR,which indicated that competition for light is one of the key factors to decrease yield of A.hypogaea.

Key words: wetland recovered from farmland, wetland soil, phosphorus (P), characteristics of adsorption and desorption, Caizi Lake.

中图分类号: