鄱阳湖采砂船时空演变特征及其对治理政策的响应评估
摘要
物多样性造成不利影响，因此，必须加强对湖泊采砂活动的监测，以确保湖盆的稳定性、洪水防控安全以及航运安
全等重要生态和社会功能的保护。本文基于Landsat卫星遥感数据，采用监督分类方法提取采砂船的位置，分析2000
至2023年期间鄱阳湖采砂船的时空分布特征，从而实现对鄱阳湖采砂活动的动态监测。结果表明：2000年，鄱阳湖
入江水道的采砂作业尚处于规模较小的阶段；然而，自2001年起，采砂船只数量大幅增长。在2006年之前，这些采
砂活动主要局限于松门山以北的湖泊区域。2007至2015年，采砂船作业范围显著南移，采砂区域随之扩大，采砂活
动逐渐增强，2016年，鄱阳湖采砂活动达到峰值，采砂船只在全湖范围内呈现出广泛分布的态势。自2017年起，采
砂空间格局发生显著转变，作业重心逐步向北湖区域回缩，且在空间分布上表现出明显的集聚性特征，这一转变发
生在政府意识到形势的严重性，并于2019年出台了更严格的采砂禁令，同时加大了对非法采砂活动的打击力度。目
前，零星的采砂作业主要集中在松门山岛，然而，鉴于松门山岛西部和鄱阳湖主湖区北部属于鄱阳湖国家级自然保
护区，为保护这些区域，当前的当务之急是在鄱阳湖主湖区全面禁止采砂，并加强对松门山岛的监管力度。
关键词
全文:
PDF参考
[1]Yang, S., Chen, X., Lu, J., Hou, X., Li, W., & Xu,
Q. (2021). Impacts of agricultural topdressing practices on
cyanobacterial bloom phenology in an early eutrophic plateau
Lake, China. Journal of Hydrology, 594, 125952.
[2]Park, E., Ho, H. L., Tran, D. D., Yang, X., Alcantara,
E., Merino, E., & Son, V. H. (2020). Dramatic decrease
of flood frequency in the Mekong Delta due to riverbed mining and dyke construction. Science of The Total Environment, 723, 138066.
[3]Wu, G., & Cui, L. J. (2008). Remote sense-based
analysis of sand dredging impact on water clarity in Poyang Lake.
Shengtai Xuebao/ Acta Ecologica Sinica, 28, 6113-6120.
[4]Zheng, Y., Lu, J., Chen, L., & Chen, X. (2022).
Spatial-temporal dynamic monitoring of sand dredging
activities based on GF-1 WFV in Lake Poyang during 2013-
2020. Journal of Lake Sciences, 34, 2144-2155.
[5]De Leeuw, J., Shankman, D., Wu, G., de Boer, W.
F., Burnham, J., He, Q., Hervé, Y., & Xiao, E. (2010).
Strategic assessment of the magnitude and impacts of sand
mining in Poyang Lake, China. Regional Environmental
Change, 10, 95-102.
[6]Lai, X., Shankman, D., Huber, C., Yesou, H.,
Huang, Q., & Jiang, J. (2014). Sand mining and increasing
Poyang Lake’s discharge ability: A reassessment of causes for
lake decline in China. Journal of Hydrology, 519, 1698-1706.
[7]Chen, J., Li, Y., Shu, L., Fang, S., Yao, J., Cao,
S., Zeng, B., & Yang, M. (2023). The influence of the
2022 extreme drought on groundwater hydrodynamics in
the floodplain wetland of Poyang Lake using a modeling
assessment. Journal of Hydrology, 626, 130194.
[8]Li, Q., Liu, X., Zhong, Y., Wang, M., & Shi, M. (2021).
Precipitation Changes in the Three Gorges Reservoir Area and
the Relationship with Water Level Change. Sensors, 21(18).
[9]GU, C., ZHU, Y., LI, R., & Yao, H. (2021).
Change of the Rainfall Erosivity in Poyang Lake Basin and Its
Influence on Suspended Sediment Load into the Lake. Journal
of Soil and Water Conservation, 35(06), 45-54.
Refbacks
- 当前没有refback。
