| 准格尔旗砒砂岩区沙棘蒸腾耗水与环境因子的关系 |
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| 引用本文： | 刘龙,姚云峰,郭月峰,祁伟,尉迟文思,韩兆敏,董晓宇.准格尔旗砒砂岩区沙棘蒸腾耗水与环境因子的关系[J].中国农业大学学报,2018,23(6):108-120. |
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| 作者姓名： | 刘龙 姚云峰 郭月峰 祁伟 尉迟文思 韩兆敏 董晓宇 |
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| 作者单位： | 内蒙古农业大学沙漠治理学院;内蒙古自治区水利水电勘探设计院 |
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| 基金项目： | 国家自然科学基金项目（31500584）；内蒙古应用研究与开发计划项目（20110732）；高等学校科学研究项目（NJZZ16055）；内蒙古自然科学基金项目（2016MS0407）；内蒙古自治区高等学校（NJYT-17-B19）；内蒙古农业大学优秀青年科学基金培养项目（2017XYQ-3）；自治区应用技术研究与开发资金计划资助 |
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| 摘 要： | 为探究沙棘的蒸腾耗水规律及其对环境因子的响应,以内蒙古自治区鄂尔多斯市砒砂岩区典型造林树种沙棘为研究对象,采用SF60茎流计于2016年8月9—15日对沙棘(Hippophae rhamnoides Linn.)蒸腾速率进行监测,并同时结合HOBO小型气象站监测相关环境因子,对沙棘液流蒸腾速率及其与周围环境因子的连日变化的相关性进行深入研究。结果表明:1)沙棘的液流蒸腾速率表现为明显的昼夜变化规律,白天的蒸腾速率远高于夜间,夜晚有微弱的稳定的树干液流存在,呈双峰曲线趋势;2)沙棘树种液流蒸腾速率与环境因子的连日变化趋势基本相同,并且昼夜变化规律具有明显的波动性,且存在时滞效应,液流蒸腾速率与环境因子有密切的联系,同太阳辐射、空气温度、风速、10cm地温、水汽压亏缺环境因子呈正相关,而与空气相对湿度呈负相关关系;3)沙棘液流蒸腾速率与各环境因子回归方程为Vs=-0.007-0.004V-0.025T_b+0.679VPD+0.155Rs+0.011RH+0.207T_a,其中Vs为液流蒸腾速率,kg/h;V为风速,m/s;T_a为空气温度,℃;VPD为水汽压亏缺,kPa;RH为空气相对湿度,%;Rs为太阳辐射,W/m~2;T_b为10cm土层地温,℃,决定系数R~2为0.971。
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| 关 键 词： | 沙棘 蒸腾速率 砒砂岩区 相关性 |
| 收稿时间： | 2017/9/25 0:00:00 |
Correlations between the transpiration water consumption of Hippophae rhamnoides Linn. and environmental factors in soft sandstone area of Zhungeer |
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| LIU Long,YAO Yunfeng,GUO Yuefeng,QI Wei,YUCHI Wensi,HAN Zhaomin and DONG Xiaoyu.Correlations between the transpiration water consumption of Hippophae rhamnoides Linn. and environmental factors in soft sandstone area of Zhungeer[J].Journal of China Agricultural University,2018,23(6):108-120. |
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| Authors: | LIU Long YAO Yunfeng GUO Yuefeng QI Wei YUCHI Wensi HAN Zhaomin and DONG Xiaoyu |
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| Institution: | College of Desert Control and Engineering, Inner Mongolia Agricultural University, Hohhot 010011, China;Inner Mongolia Autonomous Region Institute of Water Resources and Hydropower Exploration, Hohhot 010020, China,College of Desert Control and Engineering, Inner Mongolia Agricultural University, Hohhot 010011, China;Inner Mongolia Autonomous Region Institute of Water Resources and Hydropower Exploration, Hohhot 010020, China,College of Desert Control and Engineering, Inner Mongolia Agricultural University, Hohhot 010011, China;Inner Mongolia Autonomous Region Institute of Water Resources and Hydropower Exploration, Hohhot 010020, China,College of Desert Control and Engineering, Inner Mongolia Agricultural University, Hohhot 010011, China;Inner Mongolia Autonomous Region Institute of Water Resources and Hydropower Exploration, Hohhot 010020, China,College of Desert Control and Engineering, Inner Mongolia Agricultural University, Hohhot 010011, China;Inner Mongolia Autonomous Region Institute of Water Resources and Hydropower Exploration, Hohhot 010020, China,College of Desert Control and Engineering, Inner Mongolia Agricultural University, Hohhot 010011, China;Inner Mongolia Autonomous Region Institute of Water Resources and Hydropower Exploration, Hohhot 010020, China and College of Desert Control and Engineering, Inner Mongolia Agricultural University, Hohhot 010011, China;Inner Mongolia Autonomous Region Institute of Water Resources and Hydropower Exploration, Hohhot 010020, China |
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| Abstract: | |
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| Keywords: | Hippophae rhamnoides Linn transpiration rate soft sandstone area correlation |
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