地球信息科学学报

地球信息科学学报 ›› 2017, Vol. 19 ›› Issue (4): 570-579.doi: 10.3724/SP.J.1047.2017.0570

• 遥感科学与应用技术 • 上一篇    

越南下龙市不同时期土地利用变化特征

胡文秋1,2,3(), 苏奋振2,*(), 王武霞2,4, 冯雪2,5   

  1. 1. 南京大学地理与海洋科学学院,南京 210023
    2. 中国科学院地理科学与资源研究所 资源与环境信息系统国家重点实验室,北京 100101
    3. 中国南海研究协同创新中心,南京 210023
    4. 兰州交通大学测绘与地理信息学院,兰州 730070
    5. 中国地质大学信息工程学院,武汉 430074
  • 收稿日期:2016-09-23 修回日期:2017-01-09 出版日期:2017-04-20 发布日期:2017-04-20
  • 通讯作者: 苏奋振 E-mail:huwq@lreis.ac.cn;sufz@lreis.ac.cn
  • 作者简介:

    作者简介：胡文秋(1986-),女,博士生,主要从事南海周边海岸带土地利用变化研究。E-mail:huwq@lreis.ac.cn

  • 基金资助:
    中国科学院先导专项南海环境变化承载力课题(XDA130104)

The Characteristics of Land Use Change during the Different Periods in Halong City

HU Wenqiu1,2,3(), SU Fenzhen2,*(), WANG Wuxia2,4, FENG Xue2,5   

  1. 1. Department of Geographic Information Science, Nanjing University, Nanjing 210023, China
    2. State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
    3. Collaborative Innovation Center for the South China Sea Studies, Nanjing University, Nanjing 210023, China
    4. Faculty of Geomatics, Lanzhou Jiaotong University, Lanzhou 730070, China
    5. Faculty of Information Engineering, China University of Geosciences, Wuhan 430074, China
  • Received:2016-09-23 Revised:2017-01-09 Online:2017-04-20 Published:2017-04-20
  • Contact: SU Fenzhen E-mail:huwq@lreis.ac.cn;sufz@lreis.ac.cn

RichHTML

PDF (PC)

赞

被引次数

2 | 1

摘要：

在RS与GIS技术支持下,采用人机交互影像解译方法获取了1973、1988、2003和2014年4期土地利用数据,对越南建国到革新开放、革新开放至施行社会主义市场经济以及社会主义市场经济体制改革至今3个不同发展时期下龙市土地利用方式进行了定量研究,并从土地利用变化速度、程度及转移方向3个方面分析了过去40年该区域土地利用格局及时空变化特征。结果表明：① 建国至今下龙市林地占比缩减了26.3 %,城镇用地与工矿仓储二者占比扩大了4.3倍,耕地和红树林仅占下龙市总面积的3.6%和1.3%,同时养殖用地占比为5.5%。② 建国初期至革新开放时期,下龙市土地利用变化主要是城镇用地和工矿仓储的增建,二者均上升4%左右,空间变化集中于鸿基区,林地减少8.1%,耕地减少3.2%,土地利用总格局未产生明显变化。③ 革新开放至施行社会主义市场经济时期,城镇用地和工矿仓储扩建程度分别为过去15年的3倍和2倍,鸿基和拜寨的城区建设逐渐趋于平衡,林地占比减至52.2%,新地类养殖用地出现,红树林锐减。土地利用空间格局呈现破碎化。④ 施行社会主义市场经济体制到至今,林地锐减至40.0%,土地利用格局由林地占主导地位变为人工地类占主导,耕地和养殖用地分布边缘化。

关键词: 土地利用, 变化特征, 越南发展, 下龙市

Abstract:

This study was designed to reveal how land use change in Halong City in Vietnam during three different periods from 1973-2014. The land use data in 1973, 1988, 2003 and 2014 based on the remote sensing and land-use thematic maps were established with man-computer interactive image processing methods. Combined with GIS method and analysis model of land use change, we quantitatively analyzed the spatial-temporal change of land use and briefly described the characteristics of land use change in three different historical periods in Halong City since the Founding of Vietnam. The social and historical background is as follows: the first period was from the Founding of Vietnam to the beginning of Vietnam's Renovation and Opening up. The second period was from the beginning of Vietnam's Renovation and Opening up to implementing the policies of the socialist market economy, and the final period was from the beginning of socialist market economy policies up to now. In this paper, we explored the spatial-temporal variation of land use from the rate of land use change, the degree of land use, and the direction of land use transformation. Results suggested that: （1） forests shrank by 26.3% since the Founding of Vietnam. Urban area and Industrial warehouse space expanded 4.3-fold in total. In 2014, farmland and Mangrove accounted for only 3.6% and 1.3%, respectively. In the meantime, Aquaculture accounted for 5.5%. （2） Before the periods of Vietnam's Renovation and Opening up, Urban area and Industrial warehouse space was the mainly change, both increased about 4%, which mainly concentrated in Hòn Gai district. Forests and Farmland decreased 8.1% and 3.2%, respectively. Under the guidance of economic policy "heavy industry, light industry, agriculture", with struggling in economic stagnation, the whole pattern of land use had not obviously change in Halong City. （3） From Vietnam's Renovation and Opening up to implementing the policies of the socialist market economy, Urban area and Industrial warehouse space expand 3-fold and 2-fold than the past 15 years, respectively. Urban construction gradually became gentle in Hòn Gai district and B?i Cháy district. Forests decreased to 52.2%. Aquaculture appeared and it increased about 2.8% in 1988-2003 and caused the decrease of mangroves. With adjusting the guidance of economic policy, the process of urbanization was accelerating in Halong City. The spatial pattern of land use became fragmentation, and urban area construction became more balanced in both of Hòn Gai district and B?i Cháy district. （4） Since implementation of socialist market economy system, forests sharply reduced to 40.0%. Mangrove and Farmland reduced about 3% and 2.5%, respectively. Meanwhile, Urban area, Industrial warehouse space and Aquaculture increased about 8.6%, 4.4% and 2.7%, respectively. The spatial pattern of land use had transformed from forests into artificial construction land. Both sides of coasts on the bay mouth were all covered by urban land. Farmland and Aquaculture were marginalized.

Key words: land use, change characteristics, development of Vietnam, Halong city