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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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盐生荒漠地表水、热与CO2输送的实验研究
DOI: 10.11821/xb200401004, PP. 33-39
Keywords: 荒漠,显热通量,潜热通量,净光合,潜水位,准噶尔
Abstract:
利用安装在准噶尔盆地南缘多汁盐柴类荒漠上的涡度相关系统与配套的微气象观测系统所得数据，分析了显热、潜热与CO2通量的日过程和季节变化特点及各通量间的相互关系。数据显示了一个明显违背植物水分关系一般规律的现象当水汽(潜热)通量明确显示土壤水分亏缺时，净光合(CO2通量)却未受到影响。因此推测当地原生植物的根系在积盐严重的土壤上层没有发育，所以其水分状况与光合能力不受上层土壤干湿的影响，观测到的水汽通量的变化主要由土壤蒸发的变化造成的。
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