Fig. 3.

Daily rates of respiration, R, and storage (or remobilization if negative), S, in a grass sward (Lolium perenne), grown under the semi-controlled conditions of the Wageningen rhizolab in 1994. The rates are non-dimensionalized by expressing them relative to daily gross photosymthetic rate, P. R : P was calculated from the data in Fig. 2, whereas S : P was calculated using the equations derived in the main text. Vertical lines indicate the days at which the sward was cut.