石羊河流域干旱荒漠绿洲区不同滴灌模式下葡萄茎液流变化及其与环境因子的关系

应用生态学报

石羊河流域干旱荒漠绿洲区不同滴灌模式下葡萄茎液流变化及其与环境因子的关系

杜太生¹;康绍忠¹;张宝忠¹;李思恩¹;杨秀英²

¹中国农业大学中国农业水问题研究中心，北京 100083； ²武
威市水利科学研究所，甘肃武威 733000

收稿日期:2007-03-19 修回日期:1900-01-01 出版日期:2008-02-21 发布日期:2008-02-21

Stem sap flow of grape under different drip irrigation patterns and its relationships with environmental factors in arid oasis region of Shiyang River basin.

DU Tai-sheng¹; KANG Shao-zhong¹; ZHANG Bao-zhong¹; LI Si-en¹; YANG Xiu-ying²

¹Center for Agricultural Water Research in China, China Agricultural Un
iversity, Beijing 100083, China; ²Wuwei Institute of Water Conservancy, Wu
wei 733000, Gansu, China

Received:2007-03-19 Revised:1900-01-01 Online:2008-02-21 Published:2008-02-21

摘要/Abstract

摘要： 研究了石羊河流域干旱荒漠绿洲区交替滴灌（ADI）、固定滴灌（FDI）和常规滴灌（CDI）模式下葡萄茎液流的变化规律及其与气象因子和土壤含水率的相关关系.结果表明：研究区葡萄茎液流表现出与太阳辐射同步的昼夜变化节律；新梢生长期和开花期CDI处理的茎液流量显著大于其它两个处理；影响瞬时茎液流的主要气象因子是太阳辐射和气温，日茎液流量与平均气温和风速具有线性相关关系；不同灌溉方式下葡萄茎液流与气象因素的相关程度依次为：CDI>ADI>FDI；葡萄日茎液流量与参考作物蒸发蒸腾量（ET₀）呈显著线性相关关系.与CDI相比，ADI节省50%水量，而茎液流总量仅降低6.56%，且其葡萄茎液流和水分传导具有明显的补偿效应.

关键词: 景观服务, 景观分类, 风景园林, 格局与过程, 景观性能

Abstract: This paper studied the stem sap flow of grape in arid oasis region of Shiyang River basin under conventional drip irrigation (CDI), alternate drip irrigation (ADI), and fixed drip irrigation (FDI), and its relationships with meteorological conditions and soil moisture content. The results showed that the stem sap flow of grape had an obvious day-night rhythm synchronous with solar radiation, and was significantly higher under CDI than under ADI and FDI during new branch growth and flowering stages. Solar radiation and air temperature were the main meteorological factors affecting the hourly sap flow, and the daily stem sap flow had linear relationships with daily air temperature and wind speed. The correlation coefficients between the stem sap flow and the meteorological factors ranked in the order of CDI>ADI>FDI. There was a significant correlation between daily stem sap flow and reference crop evapotranspiration (ET₀). Compared with CDI, ADI could save 50% of irrigation water while the stem sap flow only reduced by 6.56%, and an obvious compensation effect between stem sap flow and hydraulic conductivity was observed.

Key words: pattern and process, landscape ser-vice, landscape performance, landscape classification, landscape architecture

杜太生¹;康绍忠¹;张宝忠¹;李思恩¹;杨秀英². 石羊河流域干旱荒漠绿洲区不同滴灌模式下葡萄茎液流变化及其与环境因子的关系[J]. 应用生态学报.

DU Tai-sheng¹; KANG Shao-zhong¹; ZHANG Bao-zhong¹; LI Si-en¹; YANG Xiu-ying² . Stem sap flow of grape under different drip irrigation patterns and its relationships with environmental factors in arid oasis region of Shiyang River basin. [J]. Chinese Journal of Applied Ecology.

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