张中典,张大龙,李建明,张智,焦晓聪,张军.黄瓜气孔导度、水力导度的环境响应及其调控蒸腾效应[J].农业机械学报,2016,47(6):139-147.
Zhang Zhongdian,Zhang Dalong,Li Jianming,Zhang Zhi,Jiao Xiaocong,Zhang Jun.Environmental Response of Stomatal and Hydraulic Conductances and Their Effects on Regulating Transpiration of Cucumber[J].Transactions of the Chinese Society for Agricultural Machinery,2016,47(6):139-147.
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黄瓜气孔导度、水力导度的环境响应及其调控蒸腾效应   [下载全文]
Environmental Response of Stomatal and Hydraulic Conductances and Their Effects on Regulating Transpiration of Cucumber   [Download Pdf][in English]
投稿时间:2015-12-05  
DOI:10.6041/j.issn.1000-1298.2016.06.018
中文关键词:  温室黄瓜  环境响应  气孔导度  水力导度  蒸腾  旋转组合设计
基金项目:国家自然科学基金项目(31471916)和陕西省农业科技创新与攻关项目(2015NY089)
作者单位
张中典 西北农林科技大学 
张大龙 西北农林科技大学 
李建明 西北农林科技大学 
张智 西北农林科技大学 
焦晓聪 西北农林科技大学 
张军 西北农林科技大学 
中文摘要:以营养生长期温室黄瓜为研究对象,通过四元二次正交旋转组合设计,分析稳态流条件下土壤相对含水率、空气温度、空气湿度和光合有效辐射对气孔导度、土壤植物系统总水力导度的影响及其调控蒸腾效应。结果表明,4个环境因子对气孔导度、总水力导度均有正效应,对其影响最大的环境因子分别是空气湿度、空气温度;土壤相对含水率与光合有效辐射、空气温度与空气湿度对气孔导度和总水力导度存在明显的交互作用;空气湿度对气孔导度、总水力导度的单因子效应为开口向上的抛物线函数,其他环境因子的单因子效应皆趋近于线性递增函数;各因子的边际效应分析表明,空气湿度是气孔导度的主要调控途径,除光合有效辐射外,其他因子均可有效调控总水力导度。采用通径分析方法研究了环境因子、气孔导度、总水力导度调控蒸腾效应,结果表明,空气温度、光合有效辐射和气孔导度均主要通过增强总水力导度对蒸腾作用产生间接正效应,其次是对蒸腾作用的直接正效应;土壤相对含水率主要通过增强总水力导度和气孔导度对蒸腾作用产生间接正效应;空气湿度的直接影响为负效应,但其主要影响途径为通过增强总水力导度和气孔导度对蒸腾作用的正效应;气孔导度与总水力导度响应环境因子变化并相互作用,协同调控蒸腾作用。
Zhang Zhongdian  Zhang Dalong  Li Jianming  Zhang Zhi  Jiao Xiaocong  Zhang Jun
Northwest A&F University,Northwest A&F University,Northwest A&F University,Northwest A&F University,Northwest A&F University and Northwest A&F University
Key Words:greenhouse cucumber  environmental response  stomatal conductance  hydraulic conductance  transpiration  composite regressive rotation design
Abstract:The effects of environmental factors, such as soil moisture (SW), air temperature (T), air relative humidity (RH) and photosynthetic active radiation (PAR) on stomatal conductance (Gs) and total hydraulic conductance of soil—plant system (Kt) under steady flow condition were analyzed, and regulation effects of these impact factors on plant transpiration were investigated. Greenhouse cucumber was used as the experimental material, based on the design of composite quadratic orthogonal regressive rotation where the artificial climate box was adopted, the main effects, single effects and marginal effects of four environmental impact factors on Gs and Kt were interpreted. The results showed that all environmental factors exerted positive effect on Gs and Kt, interaction effect was also found between SW and PAR, T and RH on Gs and Kt. The single effect of RH can be described by a parabolic function and those of other impact factors were described as linear function, which were increased with increase of Gs and Kt. The marginal effects of each impact factor on Gs and Kt showed that RH was the main regulating path for Gs, and all the impact factors except PAR efficiently regulated Kt. The regulating effects of the four environmental factors, Gs and Kt on transpiration were analyzed with paths and correlation analyses. The results showed that T, PAR and Gs mainly exerted indirect positive effect on transpiration bystrengthening Kt, which was followed by the direct positive effect on transpiration. SW mainly exerted indirect positive effect on transpiration by strengthening both Kt and Gs. RH exerted direct negative effect, while its main effect path was exerting indirect positive effect on transpiration by promoting Gs and Kt. Both Gs and Kt were remarkably responded to the four environmental impact factors and interactively regulated the transpiration synergistically.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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