| 黄土丘陵区山杏人工林蒸腾速率与环境因子的关系 |
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| 引用本文： | 马鑫,秦富仓,李龙,高天,黎英华.黄土丘陵区山杏人工林蒸腾速率与环境因子的关系[J].中国农业科技导报,1999,22(12):146-154. |
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| 作者姓名： | 马鑫 秦富仓 李龙 高天 黎英华 |
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| 作者单位： | 内蒙古农业大学沙漠治理学院, 呼和浩特 010010 |
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| 基金项目： | 内蒙古科技计划项目(201802106);
内蒙古农业大学人才引进项目（NDYB2017-21） |
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| 摘 要： | 为探究山杏蒸腾耗水规律与环境因子的关系,以内蒙古自治区呼和浩特市清水河县山杏造林树种作为研究对象,测定了山杏蒸腾速率,并结合太阳辐射、空气温度、空气相对湿度、水汽压亏缺、风速等因子,研究了山杏蒸腾速率与环境因子的连日动态变化。结果表明：①山杏蒸腾速率表现出明显的昼夜变化规律,变化趋势呈现双峰曲线,第一个峰值为148.82 g·h-1,第二个峰值为144.75 g·h-1,并存在“午休现象”,白天蒸腾速率较高,夜晚蒸腾速率较低且变化幅度相对平缓。②山杏蒸腾速率与太阳辐射、空气温度、水汽压亏缺、风速成极显著正相关,与空气相对湿度成极显著负相关,并且与环境因子的响应存在时滞性。③各环境因子对蒸腾速率的影响程度顺序为太阳辐射＞空气温度＞水汽压亏缺＞空气相对湿度＞风速。
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| 关 键 词： | 蒸腾速率 环境因子 山杏 黄土丘陵区 |
Relationship Between Transpiration Rate of Armeniaca sibirica Plantation and Environmental Factors in Loess Hill District |
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| MA Xin,QIN Fucang,LI Long,GAO Tian,LI Yinghua.Relationship Between Transpiration Rate of Armeniaca sibirica Plantation and Environmental Factors in Loess Hill District[J].Journal of Agricultural Science and Technology,1999,22(12):146-154. |
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| Authors: | MA Xin QIN Fucang LI Long GAO Tian LI Yinghua |
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| Institution: | Desert Science and Engineering College, Inner Mongolia Agricultural University, Hohhot 010010, China |
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| Abstract: | In order to explore the relationship between transpiration water consumption of Armeniaca sibirica and environmental factors, this paper took the reproducing tree species of Armeniaca sibirica in Qingshuihe County, Hohhot City, Inner Mongolia Autonomous Region as the research objects, and measured the transpiration rate of Armeniaca sibirica, and studied the daily dynamic changes of the transpiration rate of Armeniaca sibirica and the environmental factors in combination with the factors such as solar radiation, air temperature, air relative humidity, vapor pressure deficit (VPD) and wind speed. The results showed that: ① The transpiration rate of Armeniaca sibirica showed obvious diurnal variation, and the variation trend presented bimodal curve. The first peak was 148.82 g·h-1, the second peak was 144.75 g·h-1, and there was a phenomenon of "noon break". The transpiration rate was higher in the daytime, lower at night and the variation range was relatively gentle. ② The transpiration rate of Armeniaca sibirica was significantly positively correlated with solar radiation, air temperature, VPD, wind speed, and negatively correlated with air relative humidity, and a time lag with the response of environmental factors. ③ The order of the influence of environmental factors on transpiration rate was solar radiation > air temperature > VPD > air relative humidity > wind speed. |
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| Keywords: | transpiration rate environmental factor Armeniaca sibirica loess hill district |
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