首页|2011-2021年黄海海域浒苔斑块时空特征分析

2011-2021年黄海海域浒苔斑块时空特征分析

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近年来中国黄海海域频繁发生浒苔增殖所形成的绿潮灾害,对养殖业、旅游业等产生了严重影响.本研究基于多源遥感数据,对2011-2021年黄海海域浒苔信息进行提取,对其时空分布特征进行分析,并从斑块角度探讨温度及风对其生消的影响.研究结果显示:浒苔最初于5月末在江苏盐城海域附近被监测,6月末至7月初覆盖面积达到峰值,7月末至8月初在青岛海域消亡;浒苔斑块在生长阶段连通性、聚集度逐渐增强,分离度降低,在消亡阶段,斑块零散,连通性、聚集度减弱,分离度增加;低于25℃时,随温度升高浒苔覆盖面积增加,高于25℃后,温度则是浒苔分布的非主导因素;此外,浒苔的漂移路径与风向高度契合.本研究通过探讨浒苔灾害时空演变过程及成因,为制定有效预防和管理策略,减少潜在风险提供科学依据.
Spatiotemporal Characteristics of Ulva Prolifera Patches in the Yellow Sea from 2011 to 2021
In recent years,the green tide disaster caused by Ulva prolifera proliferation has occurred frequently in the Yellow Sea area of China,which has had a serious impact on aquaculture and tourism.In this study,based on multi-source remote sensing data,the informations of Ulva prolifera in the Yellow Sea from 2011 to 2021 were extracted,its spatial and temporal distribution characteristics were analyzed,and the effects of tem-perature and wind on its growth and disappearance from the perspective of patches were explored.The results are as follows.Ulva prolifera was initially detected at the end of May in the vicinity of Yancheng Sea,Jiangsu Province,and its coverage peaked at the end of June and the beginning of July,and then died out at the end of July and the beginning of August in the Qingdao Sea.Ulva prolifera patches gradually increased connectivity and aggregation,and decreased the degree of separation during the growth stage,and during the extinction stage,the patches were fragmented,and the connectivity and aggregation weakened,and the degree of separation increased.Below 25℃,the area covered by Ulva prolifera increased with increasing temperature,while above 25 ℃,temperature was a non-dominant factor in the distribution of Ulva prolifera.Moreover,the drift path of Ulva prolifera was highly compatible with the wind direction.This study explores the spatial and temporal evolution of Ulva prolifera disaster and its causes,and provides a scientific basis for the development of effective prevention and management strategies to reduce potential risks.

Ulva proliferaspatiotemporal characteristicspatchesecological factorsthe Yellow Sea

刘佳燕、吴孟泉、郑龙啸、薛明月、刘龙兴、刘博文

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鲁东大学 资源与环境工程学院,山东烟台 264039

中山大学 地理科学与规划学院,广东珠海 519000

浒苔 时空特征 斑块 生态因子 黄海

国家自然科学基金烟台市科技创新发展计划重点研发类项目高分辨率对地观测系统重大专项山东省海上航天装备技术创新中心(鲁东大学)开放课题山东省科技型中小企业技术创新能力提升工程项目烟台市科技发展计划

420713852022MSGY06279-Y50-G18-9001-22/23MAETIC2021-122022TSGC23712022MSGY057

2024

10.20062/j.cnki.CN37-1453/N.2024.02.003

鲁东大学学报(自然科学版)
鲁东大学

鲁东大学学报(自然科学版)

影响因子：0.207
ISSN：1673-8020
年,卷(期)：2024.40(2)
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