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近30年来江苏省滨海淤长型湿地景观动态 被引量:5

Landscape dynamics of aggradational coastal wetland in Jiangsu Province in the past three decades.
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摘要 以4期(1975、1990、2002、2010年)Landsat影像为基础数据,研究了近30年来江苏省滨海淤长型湿地景观组成与变化情况。结果表明,1975--2010年,江苏省滨海淤长型湿地面积从2100.18km^2增长到3686.31km^2,增长了75.52%;其中人工湿地(农业/渔业用地及盐田)面积增长了2.46倍(从514.97km^2至1795.18km^2),而以芦苇(Pragmitescommunis)、碱蓬(Sauedaspp.)、茅草(Aeluropuslittoralis)、米草(Spartinaspp.)为主的盐生植物群落及光泥滩构成的自然湿地略有增长,但占湿地总面积比例从74.59%下降至50.30%。湿地宽度迅速从1975年的8.64±1.64km增长至2010年的(13.89±2.86)km,其中,人工湿地在多数地段均向海面有所延伸,而自然湿地在不同时期和地点消长互现。近30年来,湿地景观演化方向为光泥滩一盐生植物群落一农业/渔业用地;其中,农业用地多以围垦芦苇滩涂为主,而渔业用地大多以围垦碱蓬滩涂为主。 The landscape dynamics of the aggradational coastal wetland in Jiangsu Province in the past three decades were studied by using Landsat images acquired in four periods ( 1975, 1990, 2002 and 2010). The results showed that the area of the aggradational coastal wetland in Jiangsu Province increased from 2100.18 km2 to 3686.31 km2 ( increased by 75.52% ). The artificial wetland (including agricuhural/aquatural land and salina) increased from 514.97 km2 to 1795. 18 km2( increased 2.46 times) ; while the natural wetland (halophyte communities dominated by Pragmites communis, Saueda spp. , Aeluropus littoralis and Spartina spp. , and bare intertidal mud fiat) only increased a little, and the area percentage of natural wetland relative to the total wetland decreased from 74.59% to 50.30%. In the past three decades, the average wetland width increased from 8.64±1.64 km in 1975 to 13.89±2.86 km in 2010; the artificial wetlands extended to the sea in most locations, while the natural wetland extended and retreated in differ- ent periods and locations. The succession series of wetland landscape was intertidal mud fiat→halophyte communities→agricultural/aquatural lands. The agricultural lands were mainly re- claimed from the P. communis communities, while the aquacultural lands were mainly reclaimed from the Saueda spp. communities.
作者 张明娟 王磊 刘茂松 徐驰 ZHANG Ming-juan1. * , WANG Lei2, LIU Mao-song3, XU Chi3 (ICollege of Horticul- ture, Nanjing Agricultural University, Nanjing 210095, China; 2 Jiangsu Academy of Forestry, Nanjing 211153, China; 3 School of Life Science, Nanjing University, Nanjing 210093, China).
出处 《生态学杂志》 CAS CSCD 北大核心 2013年第3期696-703,共8页 Chinese Journal of Ecology
基金 国家林业局林业公益性行业专项(201004091)和国家自然科学基金项目(41271197)资助.
关键词 农业 渔业用地 滨海滩涂 淤长型湿地 景观动态 agricultural/aquacuhural land coastal intertidal fiat aggradational wetland land- scape dynamics.
作者简介 张明娟,女,1979年生,博士,讲师,主要从事植物与景观生态学研究,发表论文近10篇。E-mail:zhang—mj@njau.edu.cn 通讯作者
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