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Position: Home > Articles > Fractal Dynamics of Land Use in Songhua River Basin From 1950 to 2015 Chinese Agricultural Science Bulletin 2017 (24) 57-61

松花江流域1950—2015年土地利用的分形动态研究

作  者:
汪雪格;吕军;刘伟;魏春凤;刘洪超;张正
单  位:
松辽流域水资源保护局松辽水环境科学研究所
关键词:
土地利用;分形理论;松花江流域
摘  要:
通过GIS技术,分析松花江流域1950—2015年66年间土地利用结构变化和分形动态,结果表明:(1)流域内的土地利用类型主要为农田、林地、草地和沼泽地,林地、草地和沼泽地呈减小趋势,沙地和盐碱地呈增加趋势,且动态度最大。(2)松花江流域分型维数66年来从1.3605逐渐逼近临界值1.50,结构稳定度下降。流域内农田、林地、河流、居民地和盐碱地的稳定性较好,而流域自然植被类型草地、湖泊、沙地和沼泽地的稳定性较差,容易受到外界的干扰。农田、林地、河流、居民地、盐碱地和沼泽地等呈下降的趋势,草地、湖泊和沙地等呈上升的趋势。
译  名:
Fractal Dynamics of Land Use in Songhua River Basin From 1950 to 2015
作  者:
Wang Xuege;Lv Jun;Liu Wei;Wei Chunfeng;Liu Hongchao;Zhang Zheng;Songliao Institute of Water Environmental Science;
关键词:
LUCC;;fractal theory;;Songhua River Basin
摘  要:
By GIS technology, the authors studied land use structure change and fractal dynamics in 66 yearsfrom 1950 to 2015 in Songhua River area. The results showed that:(1) land use types within the basin weremainly farmland, woodland, grassland and marshes, and the area of woodland, grassland and marsh showed adecreasing trend, sand and saline land area increased, and the dynamic degree was the biggest;(2) the fractaldimension of Songhua River basin gradually increased from 1.3605, and approached the critical value of 1.50 and the structural stability decreased. The stability of farmland, woodland, river, residential area and salineland were relatively good, and the stability of the natural vegetation type in grassland, lake, sand andmarshland were poor and easily to be disturbed by the outside environment. Farmland, woodland, river,residential area, saline land and marshland showed a decreasing trend, while grassland, lake and sand landincreased.

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