Table 3. Regression parameters for allometric equations in litterfall inputs of Pinus densiflora stands

Variable (x)	Litter component (y)	a	b	R2	RMSE	P-value	CF
Basal area (m2 ha−1)	Needle	2.7702	0.4503	0.28	0.1314	0.0001	1.020
	Broadleaved	1.3097	0.8158	0.05	0.6453	0.0093	1.615
	Branches	1.3974	0.8061	0.14	0.3607	0.0001	1.162
	Bark	1.3199	0.8070	0.33	0.2140	0.0001	1.054
	Miscellaneous	1.7992	0.7366	0.23	0.2476	0.0001	1.073
	Total	2.9583	0.4931	0.24	0.1590	0.0001	1.030
Stand density (tree ha−1)	Needle	2.8223	0.1943	0.08	0.1489	0.0011	1.026
	Broadleaved	1.5017	0.3203	0.01	0.6858	0.2162	1.648
	Branches	2.3323	0.6739	0.01	0.3894	0.6284	1.191
	Bark	1.6284	0.2759	0.06	0.2544	0.0156	1.077
	Miscellaneous	2.4608	0.1303	0.01	0.2805	0.2375	1.095
	Total	3.2803	0.1266	0.02	0.1807	0.0759	1.038
Mean DBH (cm)	Needle	2.9708	0.3601	0.05	0.1510	0.0079	1.027
	Broadleaved	1.3216	0.9348	0.02	0.6559	0.1095	1.641
	Branches	1.6819	0.7047	0.03	0.3834	0.0397	1.185
	Bark	1.5229	0.7590	0.09	0.2502	0.0024	1.075
	Miscellaneous	1.9847	0.7038	0.06	0.2733	0.0042	1.095
	Total	3.0332	0.5106	0.08	0.1757	0.0013	1.036
Carbon stocks of needle biomass (kg C ha−1)	Needle	1.3058	0.6427	0.40	0.1203	0.0001	1.017
	Broadleaved	−1.8426	1.3162	0.09	0.6313	0.0004	1.582
	Branches	−0.9507	1.0674	0.17	0.3542	0.0001	1.155
	Bark	−0.3200	1.1583	0.46	0.1932	<0.0001	1.044
	Miscellaneous	−0.2120	0.9345	0.25	0.2435	<0.0001	1.071
	Total	1.3266	0.7123	0.35	0.1472	<0.0001	1.025
Carbon stocks of branch biomass (kg C ha−1)	Needle	1.2401	0.5786	0.43	0.1172	<0.0001	1.016
	Broadleaved	−2.3203	1.2760	0.11	0.6232	0.0002	1.564
	Branches	−1.2299	1.0061	0.21	0.3473	<0.0001	1.149
	Bark	−1.6504	1.0995	0.53	0.1797	<0.0001	1.038
	Miscellaneous	−0.5433	0.9039	0.32	0.2330	<0.0001	1.065
	Total	1.1319	0.6736	0.42	0.1393	<0.0001	1.023
Carbon stocks of stem biomass (kg C ha−1)	Needle	1.0416	0.5237	0.40	0.1207	<0.0001	1.017
	Broadleaved	−2.9347	1.1939	0.11	0.6329	0.0001	1.395
	Branches	−1.5725	0.9102	0.19	0.3510	<0.0001	1.152
	Bark	−2.4434	1.0876	0.53	0.1795	<0.0001	1.038
	Miscellaneous	−0.8835	0.8248	0.30	0.2365	<0.0001	1.067
	Total	0.8986	0.6103	0.39	0.1433	<0.0001	1.024
Carbon stocks of aboveground tree biomass (kg C ha−1)	Needle	0.9321	0.5374	0.40	0.1200	<0.0001	1.017
	Broadleaved	−3.1314	1.2137	0.11	0.6241	<0.0001	1.558
	Branches	−1.7561	0.9325	0.19	0.3505	<0.0001	1.152
	Bark	−2.5916	1.0988	0.53	0.1795	<0.0001	1.038
	Miscellaneous	−1.0415	0.8432	0.30	0.2361	<0.0001	1.066
	Total	0.7774	0.6248	0.40	0.1428	<0.0001	1.024