摘要
为了研究松花江流域土地利用变化,利用1980、1990、2000、2010年四期遥感影像数据,经过精确分类、空间叠加运算和数理统计分析,揭示了松花江流域在1980~1990年、1990~2000年、2000~2010年三个研究时段土地利用数量变化和空间变化特征.主要结论为:(1)松花江流域1980~2010年30年内土地利用发生了大幅变化,林地、耕地和草地面积都有不同程度减少,其中林地面积减少最多,减少了32620 km^2;建设用地、水域和裸地面积都有不同程度增加,其中水域面积增加最多,增加了26455 km^2;(2)松花江流域30年来土地利用年平均变化速度达到1.65%;(3)松花江流域30年来各种土地利用类型都发生了较大的转移变化,其中以林地、耕地和草地面积转移变化较多;(4)松花江流域土地利用变化表现出明显的区域时空差异特征,30年来只有其西北部、中东部和东南部的山地林区土地利用变化都较小.
To study the changes of land use in the Songhua River basin,remote sensing image data of 1980,1990,2000 and 2010 were used.After precise classification,spatial superposition operation and mathematical statistical analysis,the quantitative and spatial changes of land use in Songhua River Basin during 1980-1990,1990-2000 and 2000-2010 were revealed.The main conclusions are:(1)Land use in the Songhua River Basin has changed significantly in the 30 years from 1980 to 2010.The area of forest,arable land and grassland has been reduced to varying degrees,of which the area of forest has decreased most,reducing 32,620 km^2.The area of construction land,waters and bare land has increased to varying degrees,of which the area of water areas has increased the most,by 26,455 km^2;(2)The average annual rate of land use change in the Songhua River basin over the past 30 years has reached 1.65%;(3)The Songhua River Basin has undergone major changes in various types of land use in the past 30 years,among which there have been many changes in the transfer of forest land,arable land and grassland areas;(4)Land use changes in the Songhua River basin show obvious regional spatial and temporal differences.In the past 30 years,land use changes in mountain forest areas in the Northwest,Middle East and Southeast have been relatively small.
作者
烟贯发
杜柏利
张冬有
叶华香
景伟伟
Yan Guanfa;Du Baili;Zhang Dongyou;Ye Huaxiang;Jing Weiwei(Harbin Normal University;Water Conservancy and Hydropower Survey Design Institute of Heilongjiang Province)
出处
《哈尔滨师范大学自然科学学报》
CAS
2019年第4期86-93,共8页
Natural Science Journal of Harbin Normal University
基金
黑龙江省教育厅项目(12541228)
关键词
土地利用
时空变化
遥感影像
GIS
松花江流域
Change of land use
Spatio-temporal change
Remotesensing image
GIS
The Songhua River Basin
