2026-10-14T02:37:58Z https://api.figshare.com/v2/oai

oai:figshare.com:article/34030023 2026-09-30T05:26:32Z category_272 category_39 category_45 category_734 category_69 category_133 portal_87 item_type_6 month_year_09_2026

Spatiotemporal dynamics of vegetation greenness and its climatic associations in Harbin based on kernel NDVI Yuguang Li (1931245) Lijuan Gong (18266826) Shuang Wu (148427) Yuhan Jiang (6424001) Huan Zhang (220065) Environmental Sciences not elsewhere classified Ecology Sociology Biological Sciences not elsewhere classified Inorganic Chemistry Plant Biology kNDVI vegetation greenness high-latitude temperate continental-monsoon regions landsat time series <p>Long-term vegetation greenness dynamics provide important evidence of ecosystem responses to climatic variability in high-latitude temperate regions. This study analyzed vegetation greenness in Harbin, Northeast China, from 2000 to 2024 using annual maximum kernel Normalized Difference Vegetation Index (kNDVI) derived from Landsat imagery. Long-term trends were assessed using Theil-Sen slope estimation and the Mann-Kendall test, with the Pettitt test used to detect temporal changes. Pixel-wise multiple linear regression with standardized climatic predictors was used to examine climatic associations. Regional median kNDVI increased from 0.56 to 0.61, with a significant change point in 2004. Significant increases and decreases accounted for 3.52% and 0.50% of the study area, respectively. Precipitation was the dominant climatic variable across 83.66% of the area, followed by temperature (13.68%), potential evapotranspiration (1.66%), and solar radiation (1.01%). Overall, Harbin showed widespread greening with spatially heterogeneous climatic associations.</p> 2026-09-30T05:26:32Z Text Journal contribution 10.6084/m9.figshare.34030023.v1 https://figshare.com/articles/journal_contribution/Spatiotemporal_dynamics_of_vegetation_greenness_and_its_climatic_associations_in_Harbin_based_on_kernel_NDVI/34030023 CC BY 4.0