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Influence of frequency, incident angle, soil dielectric on backscattering coefficient from cropland is analyzed. By using Small Slope Approximation (SSA) method, we calculate backscattering coefficient with different frequency and polarization, and compare the results with the experimental data. In addition, the Morchin model and Ulaby Model are introduced to examine the numerical results of SSA.
The contents of soil nutrient elements (N, P, K, Fe, Mn), toxic and harmful elements (Cr, Hg, As, Pb, Cu, Zn, Ni, Cd) and their influenceing factors in sequentially aged eucalyptus (2–7years) were analysed in the vicinity of mine that have affected the surrounding ecological environment in Guangdong province to estimate the changes of elements in soil and plants with aging. The results showed that...
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