摘要
由于气候和土壤特性等条件的差异，各地区缓解春旱的方式不同。为了对东北地区利用融冻水缓解春旱进行分区研究，对该地区49个台站多年平均最大冻深数据进行层次聚类分析。结合聚类结果及东北地区的实际情况，从利用融冻水缓解春旱的角度，将该地区分为南区（多年平均最大冻深〈1．2m）、中区（多年平均最大冻深介于1．2～1．7m之间）和北区（多年平均最大冻深〉1．7m）三个区。针对三个区的地域和气候特点，提出相应的春旱缓解措施。结果表明，基于融冻水缓解春旱的分区研究对于指导东北地区的春旱缓解工作具有重要的实际意义。
Due to the differences of climate and soil characteristics, different areas have different methods to alleviate the spring drought. In order to develop the division research of taking advantage of the thawing water to alleviant the spring drought of Northeast China, the data of multi- year average maximum depth of frozen soil of 49 weather stations were used for hierarchical clustering analysis. Based on the clustering results and the actual situation of the Northeast China, the region is divided into three subdivisions （Southern, Central and Northern District）. The multi year average maximum depth of frozen soil of the Southern District is less than 1.2 m,the Central District is between 1.2 m and 1.7 m, the Northern District is more than 1.7 rru In connection with Geographical and climatic characteristics of the three zones, the corresponding spring drought mitigation measures were put forward. The results showed that the division method of using the thawing water to mitigate spring drought is effective and reasonable for guiding the spring drought mitigation work in the Northeast China.
出处
《南水北调与水利科技》
CAS
CSCD
北大核心
2015年第B02期177-179,220,共4页
South-to-North Water Transfers and Water Science & Technology
基金
水利部公益性行业科研专项经费项目（200901036）
关键词
东北黑土区
春旱缓解
多年平均最大冻深
层次聚类法
Black Soil Region of Northeast China
spring drought remission
multi-year average maximum depth of frozen soil
hierarchical cluste- ring method
