基于改进机会窗口理论的盐城湿地互花米草前缘时空变化研究

doi:10.3876/j.issn.1000-1980.2023.03.008

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基于改进机会窗口理论的盐城湿地互花米草前缘时空变化研究

DOI:

10.3876/j.issn.1000-1980.2023.03.008

作者:

作者单位:

(1.河海大学港口海岸与近海工程学院,江苏南京210098;2.南通河海大学海洋与近海工程研究院,江苏南通226004;3.海岸灾害及防护教育部重点实验室,江苏南京210098)

作者简介:

罗锋(1979 —),男,副教授,博士,主要从事河口海岸动力及物质输运研究。E-mail:fluo@hhu.edu.cn

通讯作者:

中图分类号:

P748;TP79

基金项目:

江苏省海洋科技创新项目(JSZRHYKJ202105)；南通社会民生科技计划(MS12021083,MS12022009)；国家重点研发计划“蓝色粮仓科技创新”重点专项(2020YFD0900703)

Spatial-temporal variation of Spartina alterniflora edge in Yancheng wetland based on improved windows of opportunity theory

Author:

Affiliation:

(1.College of Harbor, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China;2.Nantong Ocean and Coastal Engineering Research Institute, Hohai University, Nantong 226004, China;3.Key Laboratory of Coastal Disaster and Protection (Hohai University), Ministry of Education, Nanjing 210098, China )

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摘要:

为分析江苏盐城湿地珍禽国家级保护区互花米草前缘的时空变化,提出了一种基于互花米草繁殖方式和遥感反演最小无干扰时间的改进机会窗口模型,在采用相关性分析和平均绝对误差对模型精度验证的基础上,分析了互花米草前缘的演变规律及其驱动机制。结果表明:1998—2010年,互花米草前缘全面向海推进；2010—2020年,前缘自北向南呈现淤-蚀-淤-蚀-淤的W形态变化趋势；2020—2021年,前缘北部持续侵蚀后退,中部相对稳定,南部大面积向海推进。

Abstract:

To analyze the spatial and temporal variation of the leading edge of Ｓpartina alterniflora in Yancheng Wetland National Reserve, Jiangsu Province, an improved window of opportunity model based on Ｓpartina alterniflora reproduction mode and minimum disturbance-free time of remote sensing inversion was proposed, and the evolution pattern of Ｓpartina alterniflora leading edge and its driving mechanism were analyzed through the correlation analysis and mean absolute error to verify the accuracy of the model. The results showed that from 1998 to 2010, the front of Ｓpartina alterniflora advanced to the sea. From 2010 to 2020, the foreedge presents a W-shape trend of siltation-erosion-siltation-erosion-siltation from north to south. In 2020 and 2021, the Ｓpartina alterniflora front continued to erode and retreat in the north, remained relatively stable in the middle, and moved seaward in the south.

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罗锋,代建成,陈治澎,等.基于改进机会窗口理论的盐城湿地互花米草前缘时空变化研究[J].河海大学学报(自然科学版),2023,51(3):56-64.(LUO Feng, DAI Jiancheng, CHEN Zhipeng, et al. Spatial-temporal variation of Spartina alterniflora edge in Yancheng wetland based on improved windows of opportunity theory[J]. Journal of Hohai University (Natural Sciences),2023,51(3):56-64.(in Chinese))

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收稿日期:2022-06-10
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在线发布日期: 2023-06-04
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