| 摘要: |
| 本文讨论了林（带）、果（梨）、农（冬小麦）复合系统中植物蒸腾、耗水特征及耗水关系。结果表明冬小麦是系统中蒸腾耗水的主要部分（占系统耗水量的69．3％），梨树居中（占23．6％）。系统中蒸散耗水关系也表现出类似的规律。进一步分析指出，从合理利用水资源角度考虑，适当发展具有三层结构的林-果-农复合系统是可行的。 |
| 关键词: 蒸腾 植物蒸散 农林复合系统 |
| DOI： |
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| 基金项目: |
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| Study on the Plant Transpiration and System Evapotranspiration Within an Agroforest System of Forest Belt-Fruit Tree-Crop |
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| Abstract: |
| The relationship between the plant transpiration, characteristics of water consumption and the water consumptin within an agroforest system of forest belt-fruit tree (pear)-crop (winter wheat) is cliscussed. The results indicated that the transpiration by winter wheat made up the major (69. 3% ) part of total transpined water consumption within the system. The transpired water consumption of the pear ranked the second (23. 6% of total transpired recl water consumption within the system). The samilar pattern was found for evapotranspired water consumption within the composite system. It was further indicated in the paper that, considering the rational utilization of water resource, it is warkable to develop a proper composite system of fOrest belt-fruit tree-crop with three layers of structure. |
| Key words: plant transpiration,evapotranspiration, |
