摘要
乌伊岭地区活动层变化的影响因素对小兴安岭地区环境研究、寒区工程建设以及多年冻土的保护有重要意义.因此该文以乌伊岭区活动层厚度作为研究对象,结合野外实测植被类型、土壤温湿度和高程数据,运用多元线性回归和分层回归的方式,分析了不同因子对其的影响程度.结果表明:在小叶章作为标准变量的情况下,区域内部不同植被类型对活动层厚度影响显著性差异较大,其中存在显著相关性(P<0.05)的是杜香(P=0.01)和笃斯越桔(P=0.012),影响程度杜香大于笃斯越桔;高程与冻土活动层厚度呈显著正相关(P<0.001);在植被类型作为控制变量的情况下,土壤湿度与冻土活动层厚度呈显著正相关(P<0.05).
The influencing factors of active layer change in Wuyiling region are of great significance to the environmental research,the construction of cold region and the protection of permafrost in Lesser Hinggan Mountains.Therefore,in this paper,taken the active layer thickness of Wuyiling area as the research object,combined the field measured vegetation type,soil temperature and humidity,and elevation data,and used multiple linear regression and hierarchical regression,the influence degree of different factors on it were analyzed.The results showed that,when the leaflet was used as the standard variable,the influence of different vegetation types on the active layer thickness was significantly different,and there was a significant correlation(P<0.05)were Duchinensis(P=0.01)and Duchinensis(P=0.012),the influence degree of Duchinensis was greater than Duchinensis.There is a significant positive correlation between elevation and active layer thickness of frozen soil(P<0.001).With vegetation type as the control variable,soil moisture was positively correlated with the thickness of permafrost active layer(P<0.05).
作者
吕姝琴
Lv Shuqin(Harbin Normal University)
出处
《哈尔滨师范大学自然科学学报》
CAS
2023年第2期77-84,共8页
Natural Science Journal of Harbin Normal University
关键词
乌伊岭区
活动层
高程
土壤湿度
Wuyiling District
Active layer
Elevation
Soil moisture
