摘要
湖泊作为湿地的重要组成部分,对研究区域湿地的变化有重要意义.基于1975,1989,2000,2010年遥感影像,借助MapGIS软件平台和湖泊动态度模型,研究辉河自然保护区湖泊面积变化规律及成因,结果显示:1)1975 2010年,湖泊面积呈先增后减变化规律,总体为减少趋势.1975 1989年,以大约0.012km2/a的速度增加;而1989 2010年,湖泊总面积不断减少且速度不断加快,1989 2000年以0.003km2/a的速度减少,20002010年以0.019km2/a速度减少;1975 2010年总体以0.004km2/a的速度减少.2)气温升高、降水量减少、蒸发量增加、人文干扰是影响辉河自然保护区湖泊面积和数量变化的主要原因.
As an important component of wetland,lake is important to the research of regional wetland change.Based on remote sensing images in 1975,1989,2000 and 2010,using MapGIS software platform and dynamic model of lake,lake area change law and causes of Hui river nature reserve were studied.The results showed that the area of lake showed a trend of first increase and then decrease from 1975 to 2010,the overall trend is decrease.From 1975 to 1989,the area of lake increased at the speed of about 0.012km^2/a.From 1989 to 2010,the total area of lake decreased at an accelerating speed,from 1989 to 2000with the speed of 0.003km^2/a,from 2000 to 2010with 0.019km^2/a.The area of lake decreased at a speed of 0.004km^2/a from 1975 to 2010.Air temperature increase,rainfall decrease,evaporation capacity increase and human interference of the study aera were the main reasons for lake area and quantity change of Hui river nature reserve.
出处
《河北师范大学学报（自然科学版）》
CAS
2015年第2期173-179,共7页
Journal of Hebei Normal University：Natural Science
基金
国家环境保护公益性行业科研专项(201209027
201309041)
关键词
辉河自然保护区
湖泊面积变化
降水量
气温
蒸发量
Hui river nature reserve
lake area change
precipitation
air temperature
evaporation
