An unbiased stereological estimator for surface area density is derived for gradient surface processes which form a particular class of non-stationary spatial surface processes. Vertical planar ...

Any straight line graph has a constant gradient, which is calculated by the change in 𝑦 divided by the change in 𝑥, along any section of the graph. The gradient is measuring the steepness of the ...

This is a preview. Log in through your library . Abstract Specific leaf area was measured for three dominant perennial grass species in a long term nitrogen fertilization experiment in an abandoned ...