温室甜瓜植株蒸腾与环境因子的灰色关联分析  

Research on Grey Relational Analysis Between Plant Transpiration and Environmental Factors of Greenhouse Muskmelon under Aeration Drip Irrigation

作　　者：谢恒星[1,2] 蔡焕杰[2] 

机构地区：[1]渭南师范学院化学与生命科学学院,陕西渭南714000 [2]西北农林科技大学旱区农业水土工程教育部重点实验室,陕西杨凌712100

出　　处：《人民黄河》2013年第5期76-78,共3页Yellow River

基　　金：国家自然科学基金资助项目(50779059);陕西省教育厅科研计划项目(12JK0814);渭南师范学院研究生专项科研项目(12YKZ056)

摘　　要：利用热技术方法研究了不同天气条件下温室甜瓜植株蒸腾速率的变化特征,分析了植株蒸腾与环境因子的关联度。结果表明:晴天条件下温室甜瓜植株蒸腾日变化基本呈对称单峰曲线,环境因子与植株蒸腾的关联度大小依次为太阳总辐射>光合有效辐射>气温>地温>大气压>相对湿度,蒸腾速率主要受太阳辐射的影响;阴天和雨天条件下温室甜瓜植株蒸腾日变化规律性较弱,蒸腾速率主要受大气相对湿度的影响。调控温室辐射强度是实现节水高效农业的有效手段。This paper analyzed plant transpiration ratio diumal variation of greenhouse muskmelon under different weather conditions using heat technology and discussed the relationship between plant transpiration and environmental factors. Results show that the diurnal variation of plant transpiration of greenhouse muskmelon presents single peak curve in sunny day, and the order of the grey relational analysis degree is total solar ra- diation, photosynthetically active radiation, air temperature, soil temperature, barometric pressure, and relative humidity, respectively. Plant tran- spiration ratio is affected by solar radiation strangly. Plant transpiration ratio diurnal variation of greenhouse muskmelon under cloudy day and rainy day has no significant regularity, and the plant transpiration ratio is affected by relative humidity mainly. It is an efficient way to realize water saving agriculture through controlling radiation in greenhouse.

关 键 词：植株蒸腾 环境因子 灰色关联分析 太阳辐射 甜瓜 

分 类 号：S275[农业科学—农业水土工程]