The Assimilation and Retention of Carbon in Upland Heath Plant Communities Typical of Contrasting Management Regimes: A ¹³C Tracer Study

Table 2

Dry biomass of photosynthetic (white) and nonphotosynthetic (bold) plant fractions within Calluna- and Nardus-dominated communities. Mean (𝑛=3) ± 1 S.E.

	Plant biomass, g m^−2
	Calluna-dominated community	Nardus-dominated community
Calluna leaf	223.7±38.4
Graminoid leaf	18.9±13.0	204.7±56.5
Vaccinium leaf	4.1±0.8
Vaccinium stem	34.5±7.9
Moss	99.1±6.5	94.4±30.5
Herb		11.6±2.8
Calluna stem	𝟓𝟎𝟕.𝟕±𝟕𝟒.𝟔
Root	𝟏𝟏𝟗𝟏.𝟖±𝟐𝟔𝟔.𝟐	𝟗𝟓𝟗.𝟐±𝟐𝟏𝟕.𝟐