Research Article
The Effects of Plant-Soil-Enzyme Interactions on Plant Composition, Biomass and Diversity of Alpine Meadows in the Qinghai-Tibetan Plateau
Table 3
Correlation coefficients between plant functional groups and aboveground biomass. Spearman’s rank correlation coefficients (). L: Legumes; CAB: Community aboveground biomass; S, Sedges; C3: Grasses with the three-carbon photosynthetic pathway (C3); W: Woody plants; Kobresia humilis meadow = KHM; Kobresia pygmaea meadow = KPM; Kobresia tibetica swamp meadow = KTS; Potentilla fruticosa scrub = PFS.
| Community | Plant functional groups | 2003 | P | 2004 | P | 2005 | P | Correlation coefficient (r) | Correlation coefficient (r) | Correlation coefficient (r) |
| KHM | L versus CAB | 0.900 | .037 | 0.866 | .029 | 0.900 | .037 | L versus S | 0.600 | .285 | 0.400 | .505 | 0.500 | .391 | C3 versus S | −0.300 | .624 | −0.300 | .624 | −0.707 | .188 |
| KPM | L versus CAB | 0.200 | .747 | 0.800 | .104 | 0.300 | .624 | L versus S | 0.500 | .391 | 0.400 | .505 | 0.900 | .037 | C3 versus S | −0.400 | .624 | −0.400 | .505 | −0.300 | .624 |
| KTS | S versus CAB | 0.988 | .002 | 0.982 | .003 | 0.971 | .006 |
| PFS | L versus CAB | 0.866 | .029 | 0.898 | .038 | 0.901 | .037 | W versus CAB | 0.540 | .348 | 0.699 | .189 | 0.818 | .138 | L versus S | 0.757 | .139 | 0.388 | .518 | 0.350 | .564 | C3 versus S | −0.457 | .439 | −0.558 | .328 | −0.534 | .354 |
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