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| 红壤坡地干旱季节地表-大气界面水分传输——以茶园为例 | |
| 引用本文： | 段华平,卞新民,谢小立,王凯荣.红壤坡地干旱季节地表-大气界面水分传输——以茶园为例[J].生态学报,2004,24(3):457-463. |
| 作者姓名： | 段华平 卞新民 谢小立 王凯荣 |
| 作者单位： | 1. 南京农业大学农学系,南京,210095;中国科学院亚热带区域农业研究所,长沙,410125 2. 南京农业大学农学系,南京,210095 3. 中国科学院亚热带区域农业研究所,长沙,410125 |
| 基金项目： | 中国科学院知识创新资助项目(KZCX2 - 40 7)~~ |
| 摘 要： | 以红壤坡地茶园为研究对象 ,用波纹比——能量平衡法研究了红壤坡地干旱季节地表 -大气界面水热传输特性 ,结果表明 :在茶园稳定生态系统中 ,气象因素和表层土壤含水量是影响地表 -大气界面水热传输的重要因素。特别是在受旱条件下 ,土壤水分对地表 -大气界面水热传输起决定作用 ,土壤水分越小 ,潜热通量越小 ,显热通量越大 ,反之亦然。观测期间 ,棵间蒸发量占总蒸散量的 3 2 % ,因此通过减少田间土壤水分蒸发来提高农田水分利用效率大有可为 |
| 关 键 词： | 红壤坡地 季节性干旱 地表/大气界面 水分传输 |
| 文章编号： | 1000-0933(2004)03-0457-07 |
| 收稿时间： | 2003/3/20 0:00:00 |
| 修稿时间： | 2003/12/10 0:00:00 |
Water transport through interface between land and atmosphere in dry season on red soil slopes |
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| DUAN Huaping,BIAN Xinmin,XIE Xiaoli and WANG Kairong.Water transport through interface between land and atmosphere in dry season on red soil slopes[J].Acta Ecologica Sinica,2004,24(3):457-463. | |
| Authors: | DUAN Huaping BIAN Xinmin XIE Xiaoli and WANG Kairong |
| Institution: | Department of Agronomy; Nanjing Agricultural University; Nanjing; China |
| Abstract: | Water resource is very rich in red soil regions of China. But the dramatic changes and spatial unbalances of rainfall in these regions is unfavorable for the agricultural sustainable development of this region. Based on Taoyuan Agro-ecological Experimental Station, Chinese Academy of Sciences, water transport processes through soil-atmosphere and leaf- atmosphere interface and their relationships with the environmental conditions were studied on red soil slopes tea plant. The aim of this study was to invest... |
| Keywords: | red soil slopes seasonal drought land-atmosphere interface water transport |
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