Land use/land cover evolution in recent wetlands in the modern Yellow River Delta.

被引:0
|
作者
郭笃发 [1 ]
机构
[1] 山东师范大学地理系 济南250014
关键词
黄河三角洲; 新生湿地; 土地利用/土地覆被演化; 顺向演替; 逆向演替;
D O I
暂无
中图分类号
F301 [土地经济学];
学科分类号
082802 ; 1204 ; 120405 ;
摘要
根据1986年、1996年和2001年土地覆被数据,运用ARC/INFO软件,研究了近代黄河三角洲的土地覆被演化状况。结果表明:在各覆被类型中耕地面积最大,就耕地变动而言,1986~1996年间耕地的减少明显多于其开垦面积,而1996~2001年间两者面积相当,基本上维持了耕地的动态平衡;1986~1996年间盐生植被的顺向演替与逆向演替面积相当,海域造陆速度明显高于蚀退,而1996~2001年间,顺向演替的面积超过逆向演替,造陆速度明显减缓,蚀退面积超过造陆面积,呈现陆地萎缩的趋势;15年间建设用地迅速增加,1996~2001年间比1986~1996年间增长速度更快,使建设用地面积由1986年的第6位,上升为1996年的第3位,到2001年仅次于耕地处于第2位。
引用
收藏
页码:139 / 143
页数:5
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