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林业科学 ›› 2003, Vol. 39 ›› Issue (4): 173-176.doi: 10.11707/j.1001-7488.20030430

• 研究简报 • 上一篇    

黄河故道沙地杨树人工林不同间作方式的比较

时明芝   

  1. 聊城大学生物系,聊城252059
  • 收稿日期:2002-04-25 修回日期:1900-01-01 出版日期:2003-07-25 发布日期:2003-07-25

COMPARISON OF DIFFERENT INTERCROPPING WAYS OF POPLAR PLANTATION IN SAND LAND OF THE YELLOW RIVER ORIGINAL COURSE

Shi Mingzhi   

  1. Department of Biology,Liaocheng University of Shandong Province Liaocheng252059
  • Received:2002-04-25 Revised:1900-01-01 Online:2003-07-25 Published:2003-07-25

关键词: 黄河故道沙地, 杨树人工林, 间作方式

Abstract:

he orthogonal experiment of different factors in 6-year-old poplar stands,including intercropping crops,application rate of fertilizer,and planting density of forest tree etc.,was carried out in the sandland of the Yellow River original course.The results indicated that doing intercropping,enlarging the row spacing and prolonging the time of intercropping were the effective ways by which the needs of forest tree for nutrients could be applied,and the level of forest land productivity could be increased.Meanwhile,the optimum intercropping way of poplar plantations at different ages was gound,which was useful for the site of tne present experiment.

Key words: The sand land of the Yellow River original course, Populus plantation, Intercropping ways