Soil carbon dioxide and methane fluxes from forests and other land use types in an African tropical montane region

Table 1 Inventory of tree species abundance (# ha⁻¹) and aboveground biomass (AGB) from a 20 m radius from the center of the forest plots (extrapolated to one hectare, n = 6) sampled for CO₂ and CH₄ at the smallholder and tea estate sites, in the Mau forest region of, Kenya

Species	Smallholder			Tea Estate
	SHF1 (#ha⁻¹)	SHF2 (#ha⁻¹)	SHF3 (#ha⁻¹)	TEF1 (#ha⁻¹)	TEF2 (#ha⁻¹)	TEF3 (#ha⁻¹)
Neoboutonia macrocalyx Pax	63	589	621	71	31	40
Syzygium cordatum Hochst ex Krauss	72	–	–	32	–	–
Syzygium guineense (Willd) DC.	72	56	–	–	–	–
Prunus africana (Hook.f.) Kalkman	151	–	23	–	–	–
Cassipourea malosana (Bak.) Alston	–	127	–	215	406	446
Podocarpus falcatus (Thunb.) R. Br. ex Mirb.	–	24	103	–	–	16
Euphorbia tirucalli L.	–	–	48	104	–	–
Croton macrostachyus Hochst. ex Ferret et Galinier	–	–	–	374	326	215
Zanthoxylumus ambarense (Engl.) J.O. Kokwaro	–	–	–	–	16	–
Celtis africana N.L. Burm.	–	–	–	–	16	10
Tree density (# ha⁻¹)	358	796	795	796	795	727
Above ground biomass (AGB) (Mg ha⁻¹)	102	269	204	337	409	298
Mean AGB	192b			348a

Different letters next to AGB indicate significant difference between sites (p < 0.05). SH-Smallholder site, TE-Tea estate site, F 1-3 are forest plots