| 江苏近海紫菜养殖区的空间扩张模式研究 |
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| 引用本文： | 林辉,卢霞,王晓新,何爽,李珊,郑薇,罗文强.江苏近海紫菜养殖区的空间扩张模式研究[J].海洋通报,2021(2). |
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| 作者姓名： | 林辉 卢霞 王晓新 何爽 李珊 郑薇 罗文强 |
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| 作者单位： | 江苏海洋大学 海洋技术与测绘学院，江苏 连云港，222005;连云港市水利规划设计院有限公司，江苏 连云港，222005 |
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| 基金项目： | 国家自然科学基金 （41506106）；高校优势学科建设工程资助项目 （PAPD）；江苏省海洋技术一流专业建设项目; 2019 年连云港市“海燕计划”项目；2020 年江苏省研究生实践创新计划项目 （SJCX20_1262；SJCX20_1247；SJCX20_1242）；2019 年连云港市“花果山英才计划”科技副总项目 |
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| 摘 要： | 为精准实施海域使用现状的动态监测与有效管理,开展了江苏近海紫菜养殖区空间扩张模式研究。选取1990年、2000年、2013年和2018年四个时相的Landsat遥感影像为数据源,采用面向对象分类方法提取江苏近海紫菜养殖区的空间分布信息,分别计算1990年、2000年、2013年和2018年江苏近海紫菜区养殖面积并分析其变化趋势,揭示江苏近海紫菜养殖区空间分布特征,并剖析江苏近海紫菜养殖区的空间扩张模式。研究结果表明:(1) 1990年、2000年、2013年和2018年,江苏近海紫菜养殖区分布面积分别为804.69 hm~2、6 097.95 hm~2、29 453.29 hm~2、42 316.98 hm~2,呈现逐年增加的变化趋势。(2)江苏近海紫菜养殖区主要分布在连云港海域以及盐城-南通交界海域。(3)基于2018年紫菜养殖区空间分布格局,在江苏近海的部分港口航运区和特殊利用区存在紫菜养殖的不合理用海行为。(4)连云港海域紫菜养殖扩张模式以密度增大的填充型为主,盐城-南通交界海域以密度增大的外延型为主。该研究可为相关海洋管理部门提供江苏近海紫菜养殖区空间分布和扩张模式的基础数据,也可为控制江苏近海紫菜养殖规模,优化海洋产业布局提供决策支持。
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| 关 键 词： | 遥感 紫菜 空间分布 扩张模式 |
| 收稿时间： | 2020/7/29 0:00:00 |
| 修稿时间： | 2020/11/30 0:00:00 |
Research on spatial expansion mode of laver farming area in Jiangsu Province |
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| LIN Hui,LU Xi,WANG Xiaoxin,HE Shuang,LI Shan,ZHENG Wei,LUO Wenqiang.Research on spatial expansion mode of laver farming area in Jiangsu Province[J].Marine Science Bulletin,2021(2). |
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| Authors: | LIN Hui LU Xi WANG Xiaoxin HE Shuang LI Shan ZHENG Wei LUO Wenqiang |
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| Institution: | School of Marine Technology and Geomatics, Jiangsu Ocean University, Lianyungang 222005, China;Lianyungang Water Conservancy Planning and Design Institute Co. LTD, Lianyungang 222005, China |
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| Abstract: | In order to accurately implement the dynamic monitoring and effective management of the use of sea areas, the spatial expansion model of Jiangsu offshore laver cultivation area was studied. Four phase Landsat remote sensing image of 1990, 2000, 2013 and 2018 were selected as data sources, using object-oriented classification method to extract offshore of Jiangsu laver culture zones. Then the spatial distributions of Jiangsu coastal laver farming area are calculated respectively for 1990, 2000, 2013 and 2018. The change trend analysis reveals the space distribution characteristics and the spatial expansion of Jiangsu coastal laver culture zones. The results show that: 1) In 1990, 2000, 2013 and 2018, the areas of coastal laver farming in Jiangsu are 804.69 hm2 , 6 097.95 hm2, 29 453.29 hm2
and 42 316.98 hm2 respectively, showing a trend of increasing year by year. 2) Jiangsu offshore laver breeding areas are mainly distributed in the sea area of Lianyungang and the junction of Yancheng and Nantong. 3) Based on the spatial distribution pattern of laver cultivation areas in 2018, there are unreasonable sea use behaviors of laver cultivation in some shipping areas and special utilization areas of Jiangsu offshore ports. 4)The expansion mode of laver cultivation in Lianyungang sea area is mainly filled type with increased density, while the expansion mode of laver cultivation in Yancheng-Nantong sea area is mainly extended type with increased density. This study can provide the basic data of spatial distribution and expansion mode of Jiangsu offshore laver cultivation area for relevant marine administrative departments, and also provide decision support for controlling the scale of Jiangsu offshore laver cultivation and optimizing the layout of marine industry |
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| Keywords: | remote sensing laver spatial distribution expansion mode |
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