The Primary Productivity of Lawns in a Temperate Environment

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Abstract
(1) The annual net primary productivity of two lawns was studied. One lawn was not fertilized or irrigated and was infrequently cut; the other was fertilized, irrigated and cut weekly. (2) The closely managed lawn had a lower species richness than the less managed lawn. (3) The annual net primary productivity was very similar for both lawns, 1650 g m$^{-2}$ (6400 Kcal m$^{-2}$) and equivalent to that of other managed grasses such as maize and wheat. (4) Clearly, temperate lawns are very productive despite their deceptively short stature.