摘要
根据喷灌水分在土壤中的分布特点 ,并参照地面常规灌水 ,研究了 2种灌水方式的不同灌水定额下冬小麦根系生长规律和分布状况 ,提出了相应的冬小麦根系生长和分布的数学模型 ,较深入地分析了在喷灌和地面灌条件下根质量密度剖面相对分布的异同 ,从而为更加准确地建立根系吸水模型 。
Based on the characters of soil moisture distribution of both sprinkler and surface irrigation, the root growth and distribution of winter wheat were discussed. Then root growth and distribution models of winter wheat were presented for sprinkler and surface irrigation with different water quotas. At last the differences and the similarities of root density relative distribution on profile between sprinkler and surface irrigation were analyzed in detail. The results are useful for nicely establishing root intake water model and modeling soil water movement.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2000年第5期34-37,共4页
Transactions of the Chinese Society of Agricultural Engineering
基金
国家自然科学基金!(5 96 790 2 7)
关键词
喷灌
地面灌
冬小麦
根系生长
分布
模型
sprinkler and surface irrigation
winter wheat
root growth and distribution
model