地理学报 ›› 2015, Vol. 70 ›› Issue (1): 17-28.doi: 10.11821/dlxb201501002
李建国1, 濮励杰1,2, 徐彩瑶1, 陈新建1, 张云峰3, 蔡芳芳1
收稿日期:
2014-10-13
修回日期:
2014-11-05
出版日期:
2015-01-20
发布日期:
2015-01-20
作者简介:
作者简介:李建国(1986-), 男, 江苏泗阳人, 博士生, 主要从事土地利用与规划研究。E-mail: lijianguo531@126.com
基金资助:
Jianguo LI1, Lijie PU1,2, Caiyao XU1, Xinjian CHEN1, Yunfeng ZHANG3, Fangfang CAI1
Received:
2014-10-13
Revised:
2014-11-05
Published:
2015-01-20
Online:
2015-01-20
Supported by:
摘要:
通过野外实地调研与遥感影像解译相结合的方式,研究1977-2014年(1977、1984、2000、2007与2014年)江苏中部滩涂湿地演化与围垦空间演变的规律。结果表明,1977-2014年江苏中部滨海湿地射阳河口以南岸线段总体以淤长为主,但是也存在侵蚀的岸线段,总体淤长/侵蚀速度在±20 m/yr左右,最高值出现在东台和如东洋口港附近。研究区湿地围垦的速度远高于岸线淤长的速度,基本维持在50 m/yr以上。1977-2014年江苏滨海湿地的生态关键区面积出现了快速的退化趋势,特别是盐生植被空间的快速萎缩,主要出现在射阳南部和大丰市。调查发现研究区传统的湿地围垦开发演变模式是光滩→盐生植被→养殖水面→耕地→建设用地。但是现在由于新技术和新方法的应用,极大地缩短了围垦演变路径和周期,有助于围垦经济效益的提高。江苏滨海湿地围垦后土地开发利用强度呈较为明显的上升趋势。同时,江苏滨海湿地开发的热点空间在区域上主要集中于几个重要的港口及其腹地建制镇附近,但总体规模不大。
李建国, 濮励杰, 徐彩瑶, 陈新建, 张云峰, 蔡芳芳. 1977-2014年江苏中部滨海湿地演化与围垦空间演变趋势[J]. 地理学报, 2015, 70(1): 17-28.
Jianguo LI, Lijie PU, Caiyao XU, Xinjian CHEN, Yunfeng ZHANG, Fangfang CAI. The changes and dynamics of coastal wetlands and reclamation areas in central Jiangsu from 1977 to 2014[J]. Acta Geographica Sinica, 2015, 70(1): 17-28.
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