摘要
研究结果表明 ,林带背风面 2 7H范围内 ,林网具有不同程度减轻棉株倒伏及产量损失的功能 ,有效防护范围为 0 .42～ 2 3H ,最大籽棉产量和衣分率效果区为 1 0～ 1 3H .与受灾区相比 ,保护区的籽棉产量增加 45.0 1 % ,皮棉产量增加 52 .69% .整个林网内的籽棉产量增加 2 9 94% ,皮棉产量增加 35 0 6% .
The studies show that within the scope of 27 H from sheltered side of farmland windbreak, forest net has the functions of reducing cotton lodging and its yield loss to a certain extent.The effective protection zone ranges from 0.42 to 23 H, and the maximum effective zone for unginned cotton yield and gin turnout percentage is from 10 H to 13 H. Compared with damaged zone, protection zone has an increase of 45.01% for unginned cotton yield and 52.69% for ginned one. Within the whole forest net, the unginned cotton yield is increased by 29.9%, and the gined one by 35.06%.
出处
《应用生态学报》
CAS
CSCD
1997年第2期127-133,共7页
Chinese Journal of Applied Ecology
基金
国家"八五"科技攻关项目! ( 85 0 1 0 0 3 0 6)
关键词
棉花
农田林网
热带风暴
产量
倒伏
Farmland windbreak, Violent tropical storm, Cotton yield.
