论文部分内容阅读
以定位观测资料为基础,对辽宁西北部(以下简称辽西北)沙地荒草地、樟子松林、油松林、杨树林、松杨混交林、山杏林、榆树疏林的水量平衡进行了研究。结果表明:辽西北沙地不同植物群落类型土壤贮水量与降雨量的线性相关极显著,荒草地的土壤贮水量优于任何人工植物群落类型。山杏灌木林群落蒸散量最高,为516.09mm,松杨混交林群落次之,为495.79mm,这两种植物群落蒸散量大于同期降雨量461.00mm,植物群落的水量不平衡;荒草地、樟子松林地、油松林地、杨树林地的蒸散量均小于同期降雨量,榆树疏林蒸散量次小,仅为381.34mm,这5类植物群落基本能够维持土壤水量平衡。
Based on the observed data, the water balance of sandy grassland, Pinus sylvestris var.Mongolica, Pinus tabulaeformis, Pinus tabulaeformis forest, Populus simonii mixed forest, Prunus sibirica and Ulmus pumila forest in the northwestern Liaoning Province (hereinafter referred to as the “Northwest Liaoning”) was studied. The results showed that there was a significant linear correlation between soil water storage and rainfall in different plant communities in the northwestern Liaoning Province, and the soil water storage capacity in the wasteland was better than that of any artificial plant community. Armenian shrub forest community evapotranspiration was the highest, 516.09mm, followed by the Pinus tabulaeformis community 495.79mm, the evapotranspiration of the two plant species greater than the same period rainfall 461.00mm, plant community water imbalance; grassland, camphor Evapotranspiration, Pinus tabulaeformis, Poplar woodland evapotranspiration were less than the same period rainfall, Ulmus pumila forest evapotranspiration was second only to 381.34mm, these five kinds of plant communities can basically maintain soil water balance.