Effects of drivers and their variations on the number of stems and aboveground carbon removals in miombo woodlands of mainland Tanzania

Manyanda, Bernardol John; Nzunda, Emmanuel F.; Mugasha, Wilson Ancelm; Malimbwi, Rogers Ernest

doi:10.1186/s13021-021-00180-9

Table 2 Drivers and their corresponding number of stems and AGC removals in zones of mainland Tanzania

From: Effects of drivers and their variations on the number of stems and aboveground carbon removals in miombo woodlands of mainland Tanzania

Zone names	Drivers	Stems ha⁻¹ yr⁻¹	Stems % ha⁻¹ yr⁻¹	AGB tha⁻¹ yr⁻¹	AGC tCha⁻¹ yr⁻¹	AGC % tCha⁻¹ yr⁻¹
Central	Charcoal	3.687	28.472	0.187	0.092	49.202
	Firewood collection	3.653	28.213	0.055	0.027	14.429
	Timber	1.334	10.303	0.046	0.023	12.215
	Shifting cultivation	1.808	13.961	0.042	0.020	10.969
	Natural death	0.693	5.351	0.027	0.013	7.131
	Fire	0.870	6.722	0.018	0.009	4.662
	Poles	0.820	6.332	0.003	0.001	0.787
	Grazing domestic	0.019	0.148	0.001	0.001	0.380
	Grazing wild	0.065	0.498	0.001	0.000	0.225
	Total	12.949	100	0.380	0.186	100
Eastern	Timber	5.812	12.466	0.746	0.366	30.732
	Charcoal	11.014	23.625	0.655	0.321	26.979
	Natural death	7.904	16.954	0.405	0.198	16.670
	Shifting cultivation	5.151	11.050	0.189	0.092	7.772
	Firewood collection	8.157	17.497	0.178	0.087	7.337
	Poles	5.137	11.019	0.097	0.048	4.004
	Fire	1.022	2.193	0.079	0.039	3.258
	Grazing wild	2.201	4.722	0.069	0.034	2.844
	Carvings	0.199	0.426	0.010	0.005	0.396
	Grazing domestic	0.023	0.048	0.000	0.000	0.008
	Total	46.62	100	2.428	1.19	100
Lake	Fire	0.515	6.604	0.089	0.044	33.115
	Poles	2.303	29.520	0.049	0.024	18.096
	Firewood collection	2.555	32.755	0.042	0.021	15.674
	Timber	0.379	4.862	0.035	0.017	13.031
	Charcoal	0.663	8.495	0.023	0.011	8.555
	Natural death	0.782	10.023	0.023	0.011	8.720
	Shifting cultivation	0.417	5.347	0.005	0.003	1.901
	Grazing wild	0.187	2.394	0.002	0.001	0.909
	Total	7.801	100	0.268	0.132	100
Northern	Charcoal	8.040	21.454	0.331	0.162	22.579
	Shifting cultivation	13.459	35.915	0.324	0.159	22.145
	Timber	1.257	3.355	0.301	0.147	20.525
	Poles	6.117	16.325	0.209	0.102	14.248
	Natural death	4.459	11.898	0.166	0.081	11.301
	Firewood collection	2.881	7.688	0.103	0.05	7.006
	Fire	1.092	2.915	0.030	0.015	2.072
	Grazing wild	0.168	0.449	0.002	0.001	0.124
	Total	37.473	100	1.466	0.717	100
Southern highlands	Natural death	2.397	25.501	0.332	0.163	59.949
	Poles	3.026	32.2	0.08	0.039	14.403
	Timber	0.649	6.908	0.075	0.037	13.576
	Firewood collection	2.294	24.407	0.052	0.026	9.44
	Shifting cultivation	0.621	6.61	0.008	0.004	1.401
	Grazing domestic	0.091	0.964	0.004	0.002	0.731
	Charcoal	0.258	2.741	0.002	0.001	0.421
	Grazing wild	0.063	0.67	0	0	0.079
	Total	9.399	100	0.553	0.272	100
Southern	Fire	4.143	14.368	0.586	0.287	36.115
	Timber	2.149	7.455	0.304	0.149	18.729
	Shifting cultivation	7.009	24.309	0.293	0.144	18.049
	Natural death	7.122	24.7	0.183	0.09	11.257
	Poles	4.477	15.528	0.112	0.055	6.923
	Charcoal	0.885	3.07	0.064	0.031	3.916
	Firewood collection	1.54	5.342	0.048	0.024	2.961
	Grazing wild	0.884	3.067	0.019	0.01	1.199
	Carvings	0.311	1.078	0.011	0.006	0.702
	Grazing domestic	0.233	0.809	0.002	0.001	0.121
	Mining	0.079	0.273	0	0	0.028
	Total	28.832	100	1.622	0.797	100
Western	Timber	1.782	11.582	0.163	0.08	27.946
	Shifting cultivation	5.317	34.564	0.127	0.062	21.766
	Natural death	1.592	10.348	0.073	0.036	12.584
	Firewood collection	1.866	12.128	0.065	0.032	11.195
	Charcoal	1.364	8.866	0.059	0.029	10.053
	Fire	0.922	5.993	0.059	0.029	10.169
	Poles	2.419	15.726	0.031	0.015	5.366
	Grazing domestic	0.025	0.163	0.005	0.002	0.794
	Grazing wild	0.097	0.632	0.001	0	0.128
	Total	15.384	100	0.583	0.285	100

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ISSN: 1750-0680

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