高云飞,赵传燕,王清涛,杨晓凯,葛红元,林梅

• 1:兰州大学生命科学学院草地农业生态系统国家重点实验室
• 2:甘肃省张掖市林业局寺大隆林场

摘要(Abstract)：

选择祁连山中段黑河上游天涝池小流域作为研究区,在草地、灌丛冠层和下层、青海云杉林1.8、1.0 m和地面(苔藓)处进行露水凝结量的观测,并用相应的公式对草地、灌丛冠层和青海云杉林实际露水量进行了估算.结果表明:非降雨日露日数较多,露日频数大.除青海云杉林下层(苔藓)外,其他观测到的露水强度都有两个峰值,一个出现在6月下半月,另一个出现在8月.草地、金露梅和鬼箭锦鸡儿冠层生长季估算露水量所占同期降雨量的比例分别为5.58%、6.67%、3.65%;青海云杉林距地面1.8、1.0、0 m观测的露水量分别占同期降雨量的2.28%、2.82%、3.16%.总体来看,研究区降雨事件较多,非降雨日中出现露水的概率较大.草地和灌丛的露水量大于青海云杉林地面层(苔藓)的,青海云杉林1.8、1.0 m处的露水量最小.草地、灌丛和青海云杉林3种生态系统进行比较,露水对青海云杉林生态系统的作用至关重要,因为苔藓是青海云杉林生态系统的重要组成部分.

关键词(KeyWords)： 露水强度;露水量;不同植被类型;天涝池流域

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金集成项目(91425301)

作者(Author): 高云飞,赵传燕,王清涛,杨晓凯,葛红元,林梅

DOI: 10.13885/j.issn.0455-2059.2017.02.004

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