【摘要】 干旱是影响植物生长发育最主要的逆境因子,但由于气候因素的复杂性和不可重现性,使得在自然环境下定量研究气候要素对植物的效应及植物对干旱环境的适应相当困难。所以,人工模拟自然气候环境就成为一种理想的科研技术手段。本文介绍的人工干旱环境气候室以模拟西北干旱半干旱地区植物生理生态科学研究的需要选定技术指标,通过对国内外各类型气候室技术方案和设备的调研比较,综合集成自动控制、传感器和测量、计算机和网络通讯等先进的理论和技术,自主研制和消化吸收相结合,并经过科研实验的检测,研制出了可模拟温度、湿度、光照和CO2浓度4个主要环境因素的科研型高精度人工干旱环境气候室。其测控精度已经在运行实践中得到检验,为西北干旱半干旱地区植物生理生态领域的科学研究提供了先进的科研条件。更多还原

【Abstract】 Drought is the most important adversity factor affecting plant growth,Combating drought has been paid great attention by the scientists and the grain producer.Due to globe climatic changes and environmental factors are complex and unrepeatable,it becomes very diffi cult to quantitatively research on effects of plants response and adaptation to the water defi cit environments.Therefore,the simulation natural climate under the control environment is an irreplaceable and ideal technical means for scientifi c research.In this paper,we introduced the drought environmental simulating phytotrons,which was developed by the Institute of Soil and Water Conservation.As a case study,we summarized the technical program of the simulating and controlling temperature,humidity,light and CO2 concentration in these phytotrons.The highlight advances of the technical program and simulation functions have been confirmed in our operation practice.更多还原