| 宁夏盐池毛乌素沙地柠条锦鸡儿茎流及蒸腾特征 |
| |
| 引用本文： | 赵奎,丁国栋,吴斌,张宇清,段玉玺,张静虎,孙毅.宁夏盐池毛乌素沙地柠条锦鸡儿茎流及蒸腾特征[J].干旱区研究,2009,26(3). |
| |
| 作者姓名： | 赵奎 丁国栋 吴斌 张宇清 段玉玺 张静虎 孙毅 |
| |
| 作者单位： | 北京林业大学水土保持学院水土保持与荒漠化防治教育部重点实验室,北京,100083 |
| |
| 基金项目： | 国家"十一五"科技支撑专题"沙区人居环境安全保障与工程防沙技术研究" |
| |
| 摘 要： | 利用Dynamax茎流测量系统、JA2103N千分之一天平和自动气象站对毛乌素沙地优生灌木树种柠条锦鸡儿的液流变化、蒸腾速率及其周围的环境因子进行观测.结果表明:①柠条锦鸡儿茎干液流速率日变化趋势呈多峰曲线;液流启动时间为7:00,9:00左右达液流峰值,峰值大小168～450 g/h,20:00左右降为最低,晚间有明显的液流活动现象.②柠条锦鸡儿的茎干液流日变化曲线与叶片蒸腾速率日变化曲线并不吻合,实验测得的叶片蒸腾速率不能同步反映茎干液流的动态变化特征.③柠条锦鸡儿白天液流速率变化趋势与环境因子变化趋势相吻合.相关性分析表明,影响灌木液流变化的主因子依次是太阳有效辐射、土壤含水量、空气温度和相对湿度.
|
| 关 键 词： | 茎流 蒸腾速率 柠条锦鸡儿 毛乌素沙地 盐池 宁夏 |
Characteristics of Sap Flow and Transpiration of Caragana korshinskii in the Mu Us Sandland in Ningxia, China |
| |
| ZHAO Kui,DING Guo-dong,WU Bing,ZHANG Yu-qing,DUAN Yu-xi,ZHANG Jing-hu,SUN Yi.Characteristics of Sap Flow and Transpiration of Caragana korshinskii in the Mu Us Sandland in Ningxia, China[J].Arid Zone Research,2009,26(3). |
| |
| Authors: | ZHAO Kui DING Guo-dong WU Bing ZHANG Yu-qing DUAN Yu-xi ZHANG Jing-hu SUN Yi |
| |
| Institution: | College of Water and Soil Conservation;Beijing Forestry University;Key Laboratory of Soil and Water Conservation and Desertification Combating;Ministry of Education;Beijing 100083;China |
| |
| Abstract: | In this study,the sap flow and transpiration rate of Caragana korshinskii,a well-growing shrub species,and their affecting environmental factors in the Mu Us Sandland in Ningxia Hui Autonomous Region,China,were tested and observed by using the Dynamax sap flow testing system,JA2103N millesimal balance and automatic meteorological station.The results are as follows:(1) The daily variation curve of sap flow velocity in Caragana korshinskii stem is in a multimodal distribution;the sap flow starts at 7:00,it is... |
| |
| Keywords: | sap flow transpiration rate affecting factor Caragana korshinskii Mu Us Sandland |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
