With wetlands categorized as one of the three major ecosystems, the study of wetland health has global environmental implications. Multiple regression models were employed to establish relationships between Landsat-8 images, vegetation indices and field measured biomass in the Yellow River Delta Nature Reserve. These models were then used to estimate the spatial distribution of wetland vegetative biomass. The relationships between wetland vegetative biomass and soil factors (organic matter, nitrogen, phosphorus, potassium, water soluble salt, pH and moisture) were modeled. We were able to achieve higher correlations and improved model fits using vegetative indices and spectral bands 1–5 as independent variables. Several important soil factors were isolated, including soil moisture and salt concentrations, which affect wetland biomass spatial distributions. Overall, wetland biomass decreased from land to the ocean and from the river courses outward.
Wetland biomass inversion and space differentiation: A case study of the Yellow River Delta Nature Reserve
Mei Han,Bin Pan,Yu Liu,Haochen Yu,Yan Liu
Published 2019 in PLoS ONE
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- Publication year
2019
- Venue
PLoS ONE
- Publication date
2019-02-05
- Fields of study
Medicine, Environmental Science
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Semantic Scholar, PubMed
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