Table 3.

Allometric relationship between biomass of shrub components (Y, kg per tree) and basal diameter (D, cm) for four shrub species under Shisham (Dalbergia sissoo) forests in the Tarai belt of central Himalaya

Species	Components	Intercept (a)	Slope (b)	r 2
5‐year‐old stand
Lantana	Foliage	1·8624	1·0542	0·970
camara	Stem	1·7506	3·1195	0·995
	Roots	1·7608	2·1074	0·997
Murraya	Foliage	1·2647	1·6441	0·998
koenighii	Stem	1·2448	6·6278	0·996
	Roots	1·2700	3·9169	0·998
Clerodendrum	Foliage	1·0662	3·4817	0·982
viscosum	Stem	1·1838	12·6674	0·981
	Roots	1·0561	6·2988	0·993
Pogostemone	Foliage	1·4407	1·8659	0·996
benghalense	Stem	1·4574	5·4921	0·993
	Roots	1·4574	3·5306	0·993
10‐year‐old stand
Lantana	Foliage	1·6972	1·3303	0·992
camara	Stem	1·4594	5·0578	0·865*
	Roots	1·7222	1·8654	0·991
Murraya	Foliage	1·2557	1·5577	0·988
koenighii	Stem	1·2719	7·7734	0·969
	Roots	1·8716	0·8279	0·434 n.s.
Clerodendrum	Foliage	1·1549	2·6947	0·970
viscosum	Stem	1·1783	14·9055	0·966
	Roots	1·4324	2·1308	0·916
Pogostemone	Foliage	1·3724	2·0368	0·982
benghalense	Stem	1·3204	9·3897	0·981
	Roots	1·3575	3·3033	0·987
15‐year‐old stand
Lantana	Foliage	1·6782	1·4005	0·988
camara	Stem	1·7844	3·8373	0·957
	Roots	1·6285	2·1831	0·927
Murraya	Foliage	1·3247	1·5179	0·977
koenighii	Stem	1·2685	7·3875	0·955
	Roots	0·6652	4·8477	0·845*
Clerodendrum	Foliage	1·1080	2·9784	0·959
viscosum	Stem	1·1938	12·1948	0·928
	Roots	1·1391	4·3298	0·956
Pogostemone	Foliage	1·5405	1·6191	0·935
benghalense	Stem	1·5586	7·2454	0·975
	Roots	1·7561	1·9661	0·824*

All equations are significant at P < 0·01 except those with an asterisk which are significant at P < 0·05. n.s., Not significant.