Impacts of Climate Change and Land Use/Cover Change on the Net Primary Productivity of Vegetation in the Qinghai Lake Basin.

(1) The LULC of the Qinghai Lake Basin showed a trend that “the area of grassland, cultivated land, and unused land continued to decrease, while the area of other LULC types increased” from 2000 to 2020, according to the study’s findings.

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This value was calculated using the following equation: (7) ρ = median x j − x i j − i , 1 < i < j < n where x i , x j are the NPP time series; ρ is the slope; ρ < 0 denotes a downward trend in the time series NPP, whereas ρ > 0 denotes an increasing trend in NPP.

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