| 黄土高原主要灌木树种蒸腾特性研究 |
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| 引用本文： | 隋旭红,张建军,周晓新,芦倩,王婷,王清玉.黄土高原主要灌木树种蒸腾特性研究[J].水土保持通报,2010,30(4):40-45. |
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| 作者姓名： | 隋旭红 张建军 周晓新 芦倩 王婷 王清玉 |
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| 作者单位： | 1. 北京林业大学,水土保持学院,北京,100083
2. 北京林业大学,水土保持学院,北京,100083;水土保持与荒漠化防治教育部重点实验室,北京,100083 |
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| 基金项目： | 十一五国家科技支撑项目，日本住友财团研究助成基金项目 |
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| 摘 要： | 采用精度为0.001 g的精密电子天平和露点水势仪研究了荚迷、绣线菊、虎榛子和丁香的叶片含水量日变化、蒸腾速率日变化、叶水势日变化及蒸腾速率与气象因子的关系.结果表明,4种灌木树种早晚的叶片含水量高于中午,最低值出现在10:00-14:00之间,日变幅(晴天-阴天)大小顺序为;荚迷(125.2%～114.2%)＞丁香(110.3%～59.8%)＞绣线菊(86.8%～46.9%)＞虎榛子(85.4%～35.2%);叶鲜重与叶面积可用指数曲线进行拟合;日最大蒸腾速率(晴天-阴天)大小顺序为:荚迷4.017～3.226mmol/(m2·s)]＞丁香5.628～2.918 mmol/(m2·s))＞绣线菊3.742～2.908 mmol/(m2·s)]＞虎榛子3.174～2.035 mmol/(m2·s);日平均蒸腾速率(晴天-阴天)大小顺序为＞荚迷2.687～2.252 mmol/(m2·s)]＞丁香(2.652～2.058 mmol/(m2·s)]＞绣线菊2.215～1.649 mmol/(m2·s)]＞虎榛子(1.864～1.423 mmol/(m2·s)];4种灌木叶水势日变化呈波浪型,叶水势与蒸腾速率负相关,可用对数曲线拟合;不同天气条件下影响各灌木树种蒸腾速率的主要因子不同.
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| 关 键 词： | 黄土高原 水土保持灌木树种 叶片含水量 蒸腾速率 叶水势 |
| 收稿时间： | 2009/11/13 0:00:00 |
| 修稿时间： | 1/7/2010 12:00:00 AM |
Transpiration Characteristics of Main Shrub Species for Soil Conservation on the Loess Plateau |
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| SUI Xuhong,ZHANG Jianjun,ZHOU Xiaoxin,LU Qian,WANG Ting and WANG Qingyu.Transpiration Characteristics of Main Shrub Species for Soil Conservation on the Loess Plateau[J].Bulletin of Soil and Water Conservation,2010,30(4):40-45. |
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| Authors: | SUI Xuhong ZHANG Jianjun ZHOU Xiaoxin LU Qian WANG Ting and WANG Qingyu |
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| Institution: | College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China;College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China;The Key Laboratory for Soil and Water Conservation and Desertification Combating, Ministry of Education, Beijing 100083, China;College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China;College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China;College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China;College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China |
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| Abstract: | |
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| Keywords: | Loess Plateau soil and water conservation shrub species leaf water content transpiration leaf water potential |
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