| 遥感技术支持下的下龙湾西岸养殖塘变化监测及其对“三生用地”影响分析 |
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| 引用本文： | 陈王梦,李通,张丽,张红日,闫敏,杜跃飞.遥感技术支持下的下龙湾西岸养殖塘变化监测及其对“三生用地”影响分析[J].测绘通报,2020,0(9):66-71. |
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| 作者姓名： | 陈王梦 李通 张丽 张红日 闫敏 杜跃飞 |
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| 作者单位： | 1. 山东科技大学测绘科学与工程学院, 山东 青岛 266590;2. 中国科学院空天信息创新研究院数字地球 重点实验室, 北京 100094;3. 海南省地球观测重点实验室, 海南 三亚 572000;4. 北京电子工程总体研究所, 北京 100039 |
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| 基金项目： | 海南省重大科技计划项目（ZDKJ2019006）；国家自然科学基金（41901364） |
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| 摘 要： | 下龙湾西岸是越南北部沿海的养殖大区，随着水产养殖用地规模的逐渐扩大，周边三生用地（生产用地、生活用地、生态用地）空间格局受到影响。本文以下龙湾西岸的5个沿海地区为研究区，利用1990、2000、2010、2015年4期无云Landsat TM/OLI遥感数据，采用分类回归树方法，对1990—2015年的土地利用变化进行监测。通过土地利用净变化量、土地利用动态度模型、相关性分析等方法，定量分析养殖塘时空格局演变特征及对三生用地的影响。结果表明：①25年间，养殖塘面积呈“单峰”式先增后减变化，净增加66.65 km2，2000年面积为156.65 km2，较1990年面积增长113%，2015年较2000年面积减少11%。总体呈现数量上“北增南减”、速率上“东快西慢”的面积变化特征。②养殖塘转入面积中，生产用地对养殖塘转移面积占31%，生活用地占4%，生态用地占65%。空间格局整体以白藤江及陆地中轴为界线，呈南北分区、东西分界的转入转出规律。③养殖塘占用生活用地7.24 km2，二者呈正相关关系，R2为0.46；养殖塘分别占用生产用地和生态用地55.14、115.14 km2，并与两者成负相关关系，R2分别为-0.96和-0.81。由此可知，利用遥感技术监测养殖塘时空变迁对土地资源的规划配置与可持续发展具有重意义。
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| 关 键 词： | 养殖塘 遥感监测 土地利用变化 三生用地 下龙湾 |
| 收稿时间： | 2020-07-02 |
Change monitoring of aquaculture ponds on the west bank of Ha Long Bay based on remote sensing technology and analysis of its impact on production-living-ecological land |
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| CHEN Wangmeng,LI Tong,ZHANG Li,ZHANG Hongri,YAN Min,DU Yuefei.Change monitoring of aquaculture ponds on the west bank of Ha Long Bay based on remote sensing technology and analysis of its impact on production-living-ecological land[J].Bulletin of Surveying and Mapping,2020,0(9):66-71. |
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| Authors: | CHEN Wangmeng LI Tong ZHANG Li ZHANG Hongri YAN Min DU Yuefei |
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| Institution: | 1. College of Geomatics, Shandong University of Science and Technology, Qingdao 266590, China;2. Key Laboratory of Digital Earth, Aerospace Information Research Institute, Chinese Academy of Science, Beijing 100094, China;3. Key Laboratory of Earth Observation of Hainan Province, Sanya 572000, China;4. Beijing Institute of Electronic System Engineering, Beijing 100039, China |
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| Abstract: | Ha Long Bay is a large aquaculture area in northern Vietnam. With the expansion of the scale of aquaculture land, the spatial pattern of the surrounding production-living-ecological land (production land, living land, ecological land) is affected. Five coastal areas on the west bank of Ha Long bay are taken as the study area, and four cloud-free Landsat TM/OLI remote sensing data in 1990, 2000, 2010 and 2015 are used to monitor the land use change from 1990 to 2015 by classification and regression tree method. Based on the land use net change amount and the land use dynamic degree model, the spatial-temporal evolution pattern of the aquaculture ponds and its impact on the production-living-ecological land are quantitatively analyzed. The results show that: ① During 25 years, the area of aquaculture ponds showed a “single peak” type of increase and then decrease, with a net increase of 66.65 km2. In 2000, the area is 156.65 km2, an increase of 113% compared with 1990. Compared with 2000, the area is reduced by 11% in 2015. Overall, it has the variation characteristics of the area change of “increasing from north to decreasing in south” in quantity and “slowing from east to west in speed”. ② In the transfer area of the aquaculture ponds, the area transferred from production land to aquaculture ponds accounts for 31%, living land accounts for 4%, and ecological land accounts for 65%. The spatial pattern as a whole is bounded by the Bai Teng River and the central axis of the land, showing the rule of inward and outward movement between the north-south division and the east-west boundary. ③ The aquaculture ponds occupy 7.24 km2 of domestic land, and the two have a positive correlation, R2 is 0.46; the aquaculture ponds occupy production and ecological land areas of 55.14 and 115.14 km2, respectively, and have a negative correlation with the two, R2 is -0.96 and -0.81. The use of remote sensing technology to monitor the temporal and spatial changes of aquaculture ponds is of great significance to the planning and configuration and sustainable development of land resources. |
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| Keywords: | aquaculture ponds remote sensing monitoring land use change the production-living-ecological land Ha Long Bay |
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