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| 不同热环境下国槐盆栽苗木蒸腾耗水规律 | |
| 引用本文： | 李广德,贾黎明,孔俊杰,李效文.不同热环境下国槐盆栽苗木蒸腾耗水规律[J].福建林学院学报,2010,30(1). |
| 作者姓名： | 李广德 贾黎明 孔俊杰 李效文 |
| 作者单位： | 1. 北京林业大学省部共建森林培育与保护教育部重点实验室,北京,100083 2. 北京林业大学省部共建森林培育与保护教育部重点实验室,北京,100083;北京市丰台区园林绿化局,北京100071 3. 浙江省亚热带作物研究所,浙江,温州325005 |
| 基金项目： | 北京市自然科学基金资助项目(6052016);;浙江省部共建“森林培育与保护重点实验室”项目(JD100220535);;北京市教育委员会学科建设与研究生培养项目——北京城市生态环境建设产学研联合培养研究生基地(BL2007) |
| 摘 要： | 利用二氧化碳变量法(Licor-6400便携式光合测定系统)和称重法等方法,对放置于硬路面、裸露土面及草坪上的国槐盆栽苗木的蒸腾耗水特性进行了研究。结果表明,不同下垫面地温、冠层空气相对湿度差异显著(P<0.05),冠层空气温度差异不显著。国槐叶片蒸腾速率(Tr)差异显著(P<0.05),硬路面Tr为草坪的1.17-2.10倍;净光合速率(Pn)差异不显著,硬路面国槐叶片Pn稍大于草坪。硬路面与草坪国槐单位叶面积日耗水量差异显著(P<0.05)。相关分析表明,不同下垫面的Tr与地温呈显著或极显著正相关,与冠层空气相对湿度呈显著或极显著负相关。 |
| 关 键 词： | 国槐 微环境 盆栽苗木 蒸腾耗水 影响因子 |
Transpiration and water consumption of Sophora japonica potted-seedlings in different thermal circumstance |
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| LI Guang-de,JIA Li-ming,KONG Jun-jie,LI Xiao-wen.Transpiration and water consumption of Sophora japonica potted-seedlings in different thermal circumstance[J].Journal of Fujian College of Forestry,2010,30(1). | |
| Authors: | LI Guang-de JIA Li-ming KONG Jun-jie LI Xiao-wen |
| Institution: | 1.The Key Laboratory for Silviculture and Conservation of Ministry of Education;Beijing Forestry University;Beijing 100083;China;2.Fengtai District Landscape and Forestry Administration of Beijing Municipality;Beijing 100071;3.Laboratory of Forest Resources and Ecological Environment;Zhejiang Insititute of Subtropical Crops;Wenzhou;Zhejiang 325005;China |
| Abstract: | To prove the influence of different micro heat environment on transpiration and water consumption of Sophora japonica L.to provide basis for scientific and reasonable irrigation system of urban greenland,the method of (measuring) the variation of carbon dioxide (Li-6400 portable photosynthesis system) and whole-tree weighing methods were used to investigate the transpiration and water consumption characteristics of S.japonica potted-seedlings on different underlaying surface.The results showed that the grou... |
| Keywords: | Sophora japonica microenvironment potted-seedlings transpiration and water consumption affecting factors |
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