太行山石质山地石榴中幼龄林林地蒸散规律研究

应用生态学报 ›› 2003, Vol. ›› Issue (6): 879-881.

太行山石质山地石榴中幼龄林林地蒸散规律研究

刘志军¹, 张万军¹, 曹健生¹, 马忠秋¹, 牛健植², 近腾昭彦³

1. 中国科学院石家庄农业现代化研究所, 石家庄 050021;
2. 国家林业局水土保持开放实验室, 北京 100083;
3. 日本千叶大学环境遥感中心, 日本千叶

收稿日期:2001-01-18 修回日期:2001-05-28
通讯作者: 刘志军,男,1974年生,博士生,助研,主要从事干旱、半干旱山区林业生态工程植物材料选育技术与林地蒸发散研究,发表论文5篇.E-mail:lzj1600@163.net.
基金资助:
国家863项目(2001AA242011);中国科学院知识创新工程项目;中日国际合作资助项目

Evapotranspiration in Pumica granatum stand in Lower Taihang Mountain

LIU Zhijun¹, ZHANG Wanjun¹, CAO Jiansheng¹, MA Zhongqiu¹, NIU Jianzhi², KONDOH Akihiko³

1. Shijiazhuang Institute of Agricultural Modernization, Chinese Academy of Sciences, Shijiazhuang 050021, China;
2. Key Open Soil and Water Conservation Laboratory of State Forestry Department, Beijing 100083, China;
3. Center for Environmental Remote Sensing, Japanese Chiba University, Chinba, Japan

Received:2001-01-18 Revised:2001-05-28

摘要/Abstract

摘要： 利用波文比能量平衡方法测定了太行山石质山地石榴林地蒸散量的日变化和月变化,并且计算出各物候期的蒸散量.结果表明,石榴在中午关闭气孔,以减少生理蒸腾.石榴林地蒸散量与净辐射呈显著线性相关,回归方程为Y=0.0029X-0.1449,相关系数R为0.9.石榴林地从萌芽期到落叶期的总蒸散量为424.08mm.其中,开花果实成熟期林地蒸散量最大,占生长季节总蒸散量的64.59%.石榴林地每年需要补充灌溉两次,一次在萌芽期,一次在开花前期.

关键词: 石榴, 波文比, 能量平衡, 蒸散量

Abstract: Based on energy balance method, the daily and monthly variations of evapotranspiration are measured in Pumica granatum stand in Lower Taihang Mountain. The evapotranspiration in different phenophase is also calculated. The results indicated that Pumica granatum trees close their stoma to decrease physiological transpiration at noon when the radiation is very intense. In Pumica granatum stand, the evapotranspiration was highly linearly correlated with net radiation. The regression equation was Y =0.0029 X -0.1449, and regression coefficient can reach 0.9. The total evapotranspiration was 424.08 mm, 64.59% of which was consumed from flowering phase to fruit maturing phase. Two essential supplementary irrigation, one in germination phase and the another before flowering phase, should be implemented to ensure the healthy growth of Pumica granatum trees.

Key words: Pumica granatum, Bowen ratio, Energy balance, Evapotranspiration

中图分类号:

S715.4

刘志军, 张万军, 曹健生, 马忠秋, 牛健植, 近腾昭彦. 太行山石质山地石榴中幼龄林林地蒸散规律研究[J]. 应用生态学报, 2003, (6): 879-881.

LIU Zhijun, ZHANG Wanjun, CAO Jiansheng, MA Zhongqiu, NIU Jianzhi, KONDOH Akihiko. Evapotranspiration in Pumica granatum stand in Lower Taihang Mountain[J]. Chinese Journal of Applied Ecology, 2003, (6): 879-881.

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