Analysis of wetland changes and its climatic conditions in Ziqu River,the eastern Xizang
As an important land resource and natural resource,wetlands are one of the most important ecosystems on earth.This paper applies the satellite remote sensing image data in 2015 and 2021,and the meteorological data of Ziqu in the past 40 years for the analysis of the area change and climate change of Ziqu wetland.The results show that the temperature and precipitation in the Ziqu River wetland area have increased in the past 40 years and the over-all trend has been warm and humid.Remote sensing impact analysis show that in 2021,the area of herbaceous swamps in Ziqu River wetland increased by 0.48km²,the area of rivers increased by 0.28km²,and the area of marsh/tidal flats decreased by 0.89km²compared with 2015.Overall,the area of wetlands appears to be an increasing trend,and the area of non-wetlands converted into quagmire and herbaceous wetlands increase significantly.The correlation analysis between climate warming and humidification and the area change of wetland show that the annual precipita-tion had a greater influence on the area change of woody swamp and quagmire/mudflat wetland,and the average an-nual temperature and average annual maximum temperature had a greater influence on the area change of herbaceous swamp wetland and river wetland,both of which were positively correlated,while the average annual minimum tem-perature had a greater impact on the area change of quagmire/mudflat wetland,which was negatively correlated.
Ziqu River wetlandWetland changeWarm humidificationCorrelation analysis
NETL
NSTL
万方数据
