It is true that in natural repropagation of a cleared area, a superabundance of seedlings is often produced, and later thinned by competitive survival of the stronger individuals.

• 森林的空旷地上，树木的自然繁衍通常会生产无数的幼苗，而后由于较强个体的优势竞争而逐渐变疏，这是事实。