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 5 Drivers and their corresponding number of stems and biomass removals in land use types of miombo woodlands in mainland Tanzania

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

Ownership types	Drivers	Stems ha⁻¹ yr⁻	Stems % ha⁻¹ yr⁻¹	AGB tha⁻¹ yr⁻¹	AGC tC ha⁻¹ yr⁻¹	AGC % tC ha⁻¹ yr⁻¹
Production forest	Fire	1.144	10.354	0.390	0.191	26.726
	Timber	1.086	9.831	0.380	0.186	26.061
	Charcoal	1.426	12.903	0.203	0.099	13.925
	Natural death	2.294	20.764	0.167	0.082	11.473
	Poles	1.968	17.815	0.108	0.053	7.385
	Firewood collection	1.582	14.318	0.106	0.052	7.284
	Shifting cultivation	0.668	6.046	0.048	0.024	3.313
	Unknown	0.450	4.077	0.031	0.015	2.104
	Grazing wild	0.230	2.082	0.010	0.005	0.717
	Carvings	0.097	0.874	0.010	0.005	0.653
	Grazing domestic	0.089	0.810	0.005	0.002	0.339
	Mining	0.014	0.127	0.000	0.000	0.020
	Total	11.049	100	1.458	0.714	100
Protection forest	Natural death	3.749	40.101	0.176	0.086	44.792
	Timber	0.936	10.012	0.090	0.044	22.917
	Fire	1.754	18.761	0.069	0.029	15.104
	Grazing wild	1.567	16.761	0.045	0.022	11.458
	Poles	0.457	4.888	0.010	0.005	2.604
	Firewood collection	0.671	7.177	0.008	0.004	2.083
	Charcoal	0.083	0.888	0.004	0.002	1.042
	Unknown	0.052	0.556	0.002	0.000	0.000
	Grazing domestic	0.061	0.652	0.001	0.000	0.000
	Shifting cultivation	0.019	0.203	0.000	0.000	0.000
	Total	9.349	100	0.405	0.192	100
Wildlife reserve	Natural death	1.985	38.544	0.213	0.104	40.532
	Timber	0.364	7.079	0.121	0.059	23.125
	Fire	0.903	17.534	0.079	0.039	15.010
	Grazing wild	0.932	18.091	0.060	0.029	11.398
	Unknown	0.282	5.473	0.021	0.010	4.080
	Poles	0.184	3.572	0.014	0.007	2.605
	Firewood collection	0.367	7.131	0.010	0.005	1.992
	Charcoal	0.069	1.343	0.005	0.003	0.994
	Grazing domestic	0.052	1.005	0.001	0.001	0.235
	Shifting cultivation	0.012	0.229	0.000	0.001	0.030
	Total	5.149	100	0.525	0.257	100
Shifting cultivation	Shifting cultivation	21.885	61.492	1.664	0.815	61.559
	Timber	0.985	2.768	0.310	0.152	11.486
	Charcoal	2.368	6.652	0.187	0.092	6.930
	Firewood collection	2.463	6.920	0.150	0.073	5.543
	Poles	4.520	12.700	0.134	0.066	4.973
	Unknown	1.471	4.133	0.118	0.058	4.382
	Natural death	0.952	2.675	0.094	0.046	3.462
	Fire	0.870	2.445	0.044	0.022	1.630
	Carvings	0.077	0.216	0.001	0.000	0.035
	Total	35.591	100	2.703	1.324	100
Agriculture	Shifting cultivation	12.914	49.747	0.884	0.433	46.721
	Firewood collection	4.776	18.399	0.411	0.201	21.685
	Charcoal	2.107	8.116	0.217	0.107	11.484
	Unknown	1.173	4.519	0.105	0.051	5.547
	Fire	0.807	3.107	0.093	0.046	4.932
	Timber	0.405	1.559	0.072	0.035	3.817
	Poles	2.669	10.282	0.065	0.032	3.447
	Natural death	0.962	3.706	0.036	0.018	1.906
	Pole	0.068	0.261	0.006	0.003	0.332
	Grazing domestic	0.034	0.130	0.002	0.001	0.101
	Grazing wild	0.045	0.174	0.001	0.001	0.027
	Total	25.959	100	1.893	0.928	100
Grazing land	Grazing domestic	1.830	17.790	0.606	0.297	43.763
	Charcoal	2.339	22.742	0.410	0.201	29.570
	Shifting cultivation	2.754	26.783	0.101	0.049	7.280
	Poles	1.405	13.657	0.080	0.039	5.767
	Firewood collection	1.281	12.454	0.078	0.038	5.652
	Fire	0.297	2.888	0.055	0.027	3.944
	Timber	0.153	1.492	0.037	0.018	2.669
	Unknown	0.171	1.667	0.014	0.007	0.985
	Carvings	0.017	0.162	0.003	0.001	0.201
	Natural death	0.022	0.216	0.002	0.001	0.121
	Grazing wild	0.015	0.149	0.001	0.001	0.049
	Total	10.284	100	1.385	0.679	100
Built up area	Firewood collection	7.798	100	0.319	0.156	100
	Total	7.798	100	0.319	0.156	100
Water body/swamp	Timber	12.758	66.667	2.599	1.273	95.994
	Poles	6.379	33.333	0.108	0.053	4.006
	Total	19.137	100	2.707	1.327	100
Other land	Fire	1.371	27.861	0.085	0.042	35.878
	Poles	0.415	8.435	0.045	0.022	19.128
	Firewood collection	0.605	12.289	0.041	0.020	17.176
	Natural death	1.102	22.398	0.033	0.016	13.793
	Charcoal	1.105	22.464	0.031	0.015	13.159
	Grazing wild	0.138	2.808	0.001	0.001	0.558
	Shifting cultivation	0.184	3.744	0.001	0.001	0.309
	Total	4.920	100	0.238	0.116	100

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