海洋科学
海洋科學
해양과학
MARINE SCIENCES
2014年
4期
81-87
,共7页
连云港海岸带%土地利用变化%驱动力分析%RS和GIS%面向对象
連雲港海岸帶%土地利用變化%驅動力分析%RS和GIS%麵嚮對象
련운항해안대%토지이용변화%구동력분석%RS화GIS%면향대상
Lianyungang coastal zone%land use change%driving force analysis%RS and GIS%object oriented
以连云港海岸带为研究区,基于1978年和2010年两期Landsat影像,提取土地利用信息,分析土地利用特征及其动态变化过程；面向土地利用变化基本单元,进行土地利用变化驱动力分析。结果表明：研究期初,该地区的主要土地类型为耕地和盐田,共占研究区面积的67.14%；32 a 间共有37.17%的土地发生了变化,盐田和耕地面积快速减少,水产养殖区和工矿企业用地快速增加,有限的林地资源在减少,滩涂围垦达面积46.55 km2,土地利用程度加深；变化的土地中,38.95%由经济结构调整驱动,发展潜力大；27.75%由政策驱动,存在诸多的社会和生态问题；20.49%由政策或者经济结构调整与生产力水平共同驱动,取得较好经济和社会效益；12.81%的土地由政策、人口及经济发展共同驱动。连云港海岸带土地利用存在诸多不足之处,也具有巨大的发展空间。本研究对连云港市提高土地利用的社会效益和生态效益具有重要意义。
以連雲港海岸帶為研究區,基于1978年和2010年兩期Landsat影像,提取土地利用信息,分析土地利用特徵及其動態變化過程；麵嚮土地利用變化基本單元,進行土地利用變化驅動力分析。結果錶明：研究期初,該地區的主要土地類型為耕地和鹽田,共佔研究區麵積的67.14%；32 a 間共有37.17%的土地髮生瞭變化,鹽田和耕地麵積快速減少,水產養殖區和工礦企業用地快速增加,有限的林地資源在減少,灘塗圍墾達麵積46.55 km2,土地利用程度加深；變化的土地中,38.95%由經濟結構調整驅動,髮展潛力大；27.75%由政策驅動,存在諸多的社會和生態問題；20.49%由政策或者經濟結構調整與生產力水平共同驅動,取得較好經濟和社會效益；12.81%的土地由政策、人口及經濟髮展共同驅動。連雲港海岸帶土地利用存在諸多不足之處,也具有巨大的髮展空間。本研究對連雲港市提高土地利用的社會效益和生態效益具有重要意義。
이련운항해안대위연구구,기우1978년화2010년량기Landsat영상,제취토지이용신식,분석토지이용특정급기동태변화과정；면향토지이용변화기본단원,진행토지이용변화구동력분석。결과표명：연구기초,해지구적주요토지류형위경지화염전,공점연구구면적적67.14%；32 a 간공유37.17%적토지발생료변화,염전화경지면적쾌속감소,수산양식구화공광기업용지쾌속증가,유한적임지자원재감소,탄도위은체면적46.55 km2,토지이용정도가심；변화적토지중,38.95%유경제결구조정구동,발전잠력대；27.75%유정책구동,존재제다적사회화생태문제；20.49%유정책혹자경제결구조정여생산력수평공동구동,취득교호경제화사회효익；12.81%적토지유정책、인구급경제발전공동구동。련운항해안대토지이용존재제다불족지처,야구유거대적발전공간。본연구대련운항시제고토지이용적사회효익화생태효익구유중요의의。
The land use characteristic and dynamic change process were analyzed based on twice landsat images of Lianyungang coastal zone in 1978 and 2010, then the land use change driving forces were analyzed orienting minimum land use unit. The result showed that: 1) during the beginning of the study period, cultivated land and salt-pan were main types of land use, accounting for 67.14%of total land area together;2) 37.17%of the land had been changed during past 32 years. Salt-pan and cultivated land decreased rapidly, while the aquaculture land and mine and enterprise land increased rapidly. At the same time, limit forestry land decreased and tidal flat reclamation reached to 46.55 km2, so the land use degree had been deepened;3) 38.95%of land use change was driven by eco-nomic restructuring and had large development potential;27.75%of land use change was driven by policy that had caused many social and ecological problems;20.49%of land use change was driven by combined productivity level with policy or economic restructuring that had produced better economic and social benefit;12.81%of land change was driven by policy, population and economy jointly. So, there were many defects and big development space for Lianyungang coastal zone land use. This study is important for improving the land use social and ecological bene-fits of Lianyungang city.
