森林工程2024，Vol.40Issue(4)：79-87,9.DOI:10.7525/j.issn.1006-8023.2024.04.009
2001-2022年扎龙湿地植被覆盖时空演变特征
The Spatiotemporal Evolution Characteristics of Vegetation Cover in Zhalong Wetland from 2001 to 2022
摘要
Abstract
Zhalong National Nature Reserve is the largest and world-renowned wetland in China,and its vegetation changes have a significant impact on the ecological environment of the wetland.This study focuses on the Zhalong Wetland in Qiqihar City.Based on MODIS data,the pixel binary model method and ArcGIS 10.2 software were used to analyze the spatiotemporal changes in vegeta-tion cover of the wetland from 2001 to 2022.The aim is to reveal the trend of vegetation change in Zhalong Wetland,in order to pro-vide reference and guidance for the ecological protection,restoration,and construction of the wetland.The results show that:1)the vegetation coverage in the eastern region of Zhalong Wetland is better than that in the western region,and the overall spatial variation of vegetation coverage level shows a fluctuating increasing trend;The overall transformation is from low vegetation coverage to high veg-etation coverage,with a significant increase in the area of high vegetation coverage,while the area of intermediate,medium,and low vegetation coverage gradually decreases.2)There is a correlation between vegetation coverage and annual precipitation,average an-nual temperature,and annual water replenishment in the region.The high vegetation coverage area shows a significant positive correla-tion with annual precipitation and annual water replenishment(R=0.42;R=0.62),while the medium high vegetation coverage area shows a significant positive correlation with the annual average temperature of the previous year(R=0.46),and also has a certain cor-relation with the annual average temperature of the current year;The high vegetation coverage area also has a certain correlation with the annual precipitation of the previous year,showing a characteristic that the change in vegetation coverage lags behind the change in precipitation.关键词
扎龙湿地/遥感影像/植被覆盖度/水文气象/相关性Key words
Zhalong Wetland/remote sensing images/vegetation coverage/hydrology and meteorology/relevance分类
农业科技引用本文复制引用
李婷,张东向,张德胜,孙强,朱悦..2001-2022年扎龙湿地植被覆盖时空演变特征[J].森林工程,2024,40(4):79-87,9.基金项目
黑龙江省省属科研院所科研业务费项目(FJZ2024-09) （FJZ2024-09）
齐齐哈尔市科学技术计划项目-社会发展公关(SFGG-201575) （SFGG-201575）
齐齐哈尔大学研究生创新科研项目(YJSCX2019044). （YJSCX2019044）
