Spatio-Temporal Variation Characteristics of Net Primary Production in Hainan Island from 2005 to 2020
Based on the NPP data of Hainan island extracted from MODIS remote sensing data and combined with meteorological data,the NPP changes of main vegetation in Hainan island and its climate response relationship from 2005 to 2020 were statistically analyzed and compared.The results showed that the NPP of Hainan island vegetation showed a trend of slow increase in the last 16 years;The spatial distribution of NPP decreased from the central south to the coastal areas,and NPP values remained basically unchanged in most areas during 16 years,increasing significantly in coastal areas,and decreasing somewhat in central and northern areas;NPP was negatively correlated with temperature,positively correlated with precipitation,and was more sensitive to the change of temperature then precipitation.Correlation between NPP at different land cover and temperature,precipitation was grassland＞woodlands＞farm-land.There results can provide data support for the status of vegetation carbon storage and the regulation and restoration of environ-ment in Hainan island.
NETL
NSTL
万方数据
