摘要
旱坡地枣树密植园 ,不同密度单株空间不同 ,树体生长发育也不相同 ,因此不同密度间生长期平均单株需水量差异很大。研究表明 ,6 .0m× 1.0m园平均单株年需水量为 36 9.0 5kg ,枣园年需水量为 6 14.47t/hm2 ;6 .0m× 1.5m园平均单株年需水量为 5 34 .2 4kg ,枣园年需水量为 5 93.5 2t/hm2 ;6 .0m× 2 .0m园平均单株年需水量为 6 93.72kg ,枣园年需水量为 5 78.0 2t/hm2 ;6 .0m× 3.0m园平均单株年需水量为 10 0 0 .48kg ,枣园年需水量为 5 5 5 .75t/hm2 。
In jujube close planting garden of arid hillside field, the plant growth and development varies with the space of a single tree so that there is a great difference in water requirement of average single tree in growth phase between different planting densities. Study shows that an average single tree needed 369.05 kg water a year, a hectare garden needed 614.47 tons water a year in the 6.0 m×1.0 m garden; an average single tree needed 534.24 kg water a year, a hectare garden needed 593.52 tons water a year in the 6.0 m×1.5 m garden; an average single tree needed 693.27 kg water a year, a hectare garden needed 578.02 tons water a year in the 6.0 m×2.0 m garden; an average single tree needed 1 000.48 kg a year, a hectare garden needed 555.75 tons water in 6.0 m×3.0 m garden.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
2001年第4期128-130,共3页
Journal of Northeast Forestry University
基金
国家"九五"科技攻关项目
关键词
旱坡地
枣树
密植园
生长期
需水量
叶片蒸腾速率
蒸腾系数
Arid hillside field
Jujube close planting gardens
Amount of water requirement in growth phase
