干旱区生态环境知识资源中心(Arid): 亚麻种子出苗对土壤水分胁迫的响应

Arid

	亚麻种子出苗对土壤水分胁迫的响应
其他题名	Effects of soil water stress on Linum usitatissimum emergence
	王萍; 张立峰; 李明
来源期刊	生态学杂志
ISSN	1000-4890
出版年	2012
卷号	31 期号:6 页码:1373-1377
中文摘要	为保障北方干旱-半干旱地区作物春播安全成苗,以完全控制环境为基础,通过人工设计水分梯度,研究了土壤水分胁迫与亚麻出苗的关系以及抗旱出苗的水分临界阈值。结果表明:亚麻出苗进程对土壤水分的反应表现出跃升、渐升和S曲线3种类型;亚麻出苗在砂质栗钙土上的水分敏感域为3.5%~6.0%,草甸栗钙土为9.0%~15.0%;以亚麻出苗速率为标准,砂质栗钙土的土壤水分临界值为5.5%,草甸栗钙土为13.0%;以亚麻抗旱保苗为标准,砂质栗钙土的土壤水分临界值为5.0%,播种量需增至常年的1.52倍,草甸栗钙土约为12.0%,播种量为常年的1.72倍。
英文摘要	By the method of establishing artificial moisture gradient and based on completely controlling environment,an experiment was designed to study the relationships between soil water stress and flax(Linum usitatissimum) seedling emergence as well as the soil moisture critical value for the emergence resisting soil drought,aimed to ensure the spring-sowing crop seedlings safely in northern arid or semi-arid regions of China.The responses of the emergence to soil moisture exhibited 3 types,i.e.,jump,ascending,and S-curve.The moisture-sensitive domain of the emergence was from 3.5% to 6.0% for sandy chestnut soil,and from 9.0% to 15.0% for meadow chestnut soil.Taking the emergence rate as a standard,the soil moisture threshold value was 5.5% for sandy chestnut soil,and 13.0% for meadow chestnut soil.With the drought-resistance and conserving seedling as the standard,the soil moisture threshold value was 5.0% for sandy chestnut soil,and the seeding level should be increased to 1.52 times of that in average years.When the soil moisture threshold value for meadow chestnut soil was 12.0%,the seeding level should be increased to 1.72 times of that in average years.
中文关键词	亚麻 ; 土壤含水量 ; 出苗率 ; 出苗速率 ; 土壤水分临界值
英文关键词	Linum usitatissimum soil moisture emergence percentage emergence rate soil moisture threshold value.
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Agriculture
WOS研究方向	Agriculture
CSCD记录号	CSCD:4555916
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/228502
作者单位	王萍, 河北农业大学农学院, 保定, 河北 071000, 中国.; 李明, 河北农业大学农学院, 保定, 河北 071000, 中国.; 张立峰, 河北农业大学农学院, 农业部张北农业资源与生态环境重点野外科学观测试验站, 保定, 河北 071000, 中国.
推荐引用方式 GB/T 7714	王萍,张立峰,李明. 亚麻种子出苗对土壤水分胁迫的响应[J],2012,31(6):1373-1377.
APA	王萍,张立峰,&李明.(2012).亚麻种子出苗对土壤水分胁迫的响应.生态学杂志,31(6),1373-1377.
MLA	王萍,et al."亚麻种子出苗对土壤水分胁迫的响应".生态学杂志 31.6(2012):1373-1377.