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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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Carbon Balance and Management

ISSN: 1750-0680

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