摘要
通过对10、20、40、80、110和140cm湿地深处的冻土层在2月、5月、8月、11月4个月份的温度变化进行研究,分析了湿地冻土土壤各层温度年内变化特征。结果表明:冻土土壤表层温度随气温变化而变化,土壤深层受含水和微生物活动影响,出现变化异常,主要表现在110cm深处,在140cm深处基本为永冻层。
Based on the study of the temperature change in the frozen soil layers(10,20,40,80,110&140cm)in the four months(February,May,August&November),the variation characteristics of temperature in various layers of wetland soils were analyzed.Result show that the temperature in each layer changed with the change of the temperature.the deep of the frozen soil was influenced by the moisture and microorganism,abnormal changes appear,mainly in the110cm depth,being permafrost at140cm deep.
作者
赵希宽
Zhao Xikuan(Daxing’anling Academy of Agriculture and Forestry, Jiagedaqi 165000, China;National Positioning Observatory for Nenjiangyuan Forest Ecosystem in Heilongjiang Province, Jiagedaqi 165000, China)
出处
《防护林科技》
2018年第1期27-28,共2页
Protection Forest Science and Technology
关键词
湿地冻土
土壤温度
变化规律
frozen soil in wetland
temperature of soil
variation rule
