应用生态学报2011，Vol.22Issue(8)：2061-2068,8.
下挖深度对节能日光温室环境因子日变化及空间分布的影响
Effects of sunken depth of energy-saving solar greenhouse on the diurnal variation and spatial distribution of environmental factors in the greenhouse
摘要
Abstract
Taking the energy-saving solar greenhouses with the same infrastructure but different sunken depths ( 0, 0. 5, 1.0, and 1.5 m) in Tai' an of Shandong Province as test objects, this paper analyzed the intercepted amount of direct solar radiation energy, and studied the diurnal variation and spatial distribution patterns of environmental factors in the greenhouses on winter solstice ( December 20-24, 2009) and summer solstice (June 19-23, 2010). With the increase of sunken depth, the shadow areas in the greenhouses caused by sunken profiles increased gradually, the direct solar radiation energy into the interior of the greenhouses shifted from south to north, and the ratio of ground radiation to back wall radiation decreased gradually. Within the range of 0-1. 0 m sunken depth, the air temperature and soil temperature in the greenhouses increased significantly with increasing sunken depth; but when the sunken depth was 1. 5 m, the wanning effect declined significantly, and the deviation of the lowest soil temperature increased. The deeper the sunken depth, the lower the light intensity and the higher the relative humidity in the greenhouses were. In considering of both lighting and heat preservation, the appropriate sunken depth of energy-saving sunlight greenhouses with a span of 10 m in Tai' an region should be less than 1.0 m.关键词
下挖深度/节能日光温室/环境因子/空间分布Key words
sunken depth/ energy-saving solar greenhouse/ environmental factor/ spatial distribution分类
农业科技引用本文复制引用
李清明,艾希珍,于贤昌..下挖深度对节能日光温室环境因子日变化及空间分布的影响[J].应用生态学报,2011,22(8):2061-2068,8.基金项目
“十二五”国家科技支撑计划项目(2011BAD12B03)、现代农业产业技术体系建设专项(CARS-25-C-01)、山东省农业重大应用技术创新专项[鲁财农指(2010)58号]、山东农业大学博士后流动站项目(71999)和农业部园艺作物生物学与种质创制重点实验室项目资助. （2011BAD12B03）
