| 摘要: |
| 湿地资源在维护滨海生态系统平衡中发挥重要作用。文章基于多源遥感影像，利用人为干扰度指数和“3S”技术等方法研究南流江三角洲湿地资源时空分布特征及驱动因素。结果表明：（1）2005—2019年，湿地总面积整体呈现增长的趋势，湿地总面积由2005年的77.33 km2增加到2019年的87.55 km2；（2）湿地变化速率最快的类型为滨海湿地，年变化率为 36.31%，其次为鱼塘池塘和水稻田，年变化率分别为3.40%和3.31%；（3）湿地的面积受河流水沙变化与管理政策的变化的影响较大；（4）人类对三角洲地区沿海湿地的干扰程度逐年增强，并逐渐向沿海地区发展。本研究对南流江湿地资源的保护与可持续利用有重要作用。 |
| 关键词: 湿地 人为干扰度 驱动力 南流江 |
| DOI：10.20016/j.cnki.hykfygl.2023.07.002 |
| 投稿时间：2022-10-07修订日期：2023-05-31 |
| 基金项目:北部湾大学海洋科学广西一流学科（DRB006，DTC003）；国家自然科学基金“南流江入海水沙通量响应热带气旋作用的变化过程”（41866001）；北部湾大学大学生创新创业训练计划资助项目（202011607021；202011607036；S202111607134；S202111607128）. |
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| Temporal and Spatial Variation of Wetland Resources in Nanliu River Delta and Its Driving Factors Based on Human Disturbance |
| LI Shushi,YU Chongxi,YANG Xialing,PAN Jie,YANG Yuting |
| Guangxi Key Laboratory of Marine Environment Change and Disaster in Beibu Gulf，Beibu Gulf University;College of Resources and Environment，Beibu Gulf University;College of Geography and Planning，Nanning Normal University |
| Abstract: |
| Wetland resources play an important role in maintaining the balance of surface ecosystem. Based on multi-source remote sensing images, this paper studies the spatial and temporal distribution characteristics and driving factors of wetland resources in Nanliu River Delta by using human disturbance index and “3S” technology. The results show that: (1) The total wetland area has shown an overall growth trend from 2005 to 2019, with the total wetland area increasing from 77.33 km2 in 2005 to 87.55 km2 in 2019. (2) Coastal wetland types have the fastest change rate, annual rate of 36.31%, followed by fish ponds and rice fields, the annual rate of 3.40% and 3.31% respectively. (3) The area of wetland is greatly affected by the change of river water and sediment and the change of management policy. (4) The degree of human disturbance to the coastal wetlands in the delta area increases year by year, and gradually develops to the coastal areas. |
| Key words: Wetland, Anthropogenic interference, Driving forces, Nanliu River |
