秦王川灌区种植小麦对地表微环境的影响

Effects of Planting Triticum Aestivum on Ground Surface Microenvironment in Qinwangchuan Irrigated Regions

实验以小麦地和裸地为研究对象,通过测定揭示秦王川灌区种植小麦对地表微环境的影响.结果表明:小麦的盖度、高度和地上生物量随着生长期的延长均呈显著升高趋势(P<0.05);种植小麦可显著降低地表的日照强度、温度和土壤温度,同时提高地表湿度;相关分析显示,小麦的盖度与地表微环境相关指标间的相关性最强,即盖度对它们的影响最显著;回归分析显示,小麦盖度每提高1%,可使植被覆盖区的地表日照强度降低597lux,地表温度降低0.15℃,土壤温度降低0.086℃,而地表湿度提高0.40%.

Regard Triticum aestivum and bare land(CK)as research objects,and conducted the effects of planting spring wheat on ground surface microenvironment in Qinwangchuan irrigated regions,the results showed that with the extension of growing time,the cover,height and biomass of wheat all significantly increased(P<0.05).The sunshine intensity,temperature and soil temperature all significantly decreased,and the humidity significantly increased,when spring wheat was planted.Correlation analysis showed that the effects of vegetation cover on the indies of microenvironment was most.The regression analysis showed that for every 1%of increase in cover,the sunshine intensity,temperature and soil temperature of microenvironment decreased 597lux,0.15℃and 0.086℃,while the humidity increased 0.40%,respectively.