摘要
Abstract
Biological invasion is one of the three most serious global environmental problems.As one of the most influential invasive plants in China's coastal wetlands,Spartina alterniflora has become a hot topic in ecological research.Since its introduction to Shandong Province in 1989,S.alterniflora has spread rapidly,making it one of the most severely invaded areas in China.In this paper,based on multispectral satellite images with spatial resolution of 2 m,such as the Gaofen series,Resource 1 and CMB Resource Satellites,combined with the field survey data,the remote sensing monitoring and analyses of S.alterniflora in coastal wetlands of Shandong Province in 2022 were carried out.The results showed that the distribution area of S.alterniflora in Shandong Province in 2022 is 2 855.37 ha;Weihai has the largest distribution area of S.alterniflora,accounting for 32.21%of the province's total;the distribution area of S.alterniflora in Rizhao is the smallest,only 4.99 ha.After a year of governance,the area of S.alterniflora in Shandong Province has decreased by about 72%compared to 2021,and the governance effect is significant.关键词
互花米草/高分遥感/山东省/遥感监测/卫星影像Key words
Spartina alterniflora/high-resolution remote sensing/Shandong Province/remote sensing monitoring/satellite images分类
环境科学
