The Intensification of Shifting Cultivation in Tanzania: Effects on Soil and Vegetation
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The Intensification of Shifting Cultivation in Tanzania: Effects on Soil and Vegetation. / Kilawe, Charles Joseph; Mohamed Maliondo, Salim ; Bruun, Thilde Bech; Birch-Thomsen, Torben; Silayo, Dos Santos Aristaricky; Mertz, Ole.
Agriculture, Environment and Sustainable Development: Experiences and Case Studies. ed. / Rukhsana; Asraful Alam. Cham : Springer, 2022. p. 21-42.Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review
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TY - CHAP
T1 - The Intensification of Shifting Cultivation in Tanzania: Effects on Soil and Vegetation
AU - Kilawe, Charles Joseph
AU - Mohamed Maliondo, Salim
AU - Bruun, Thilde Bech
AU - Birch-Thomsen, Torben
AU - Silayo, Dos Santos Aristaricky
AU - Mertz, Ole
PY - 2022
Y1 - 2022
N2 - This study investigated the effect of intensification of shifting cultivation on the recovery of soil properties and vegetation in East Central, Tanzania. The study is based on soil sampling conducted in 40 (5 m × 5 m) plots from adjacent sites under fallows of 1, 2, 3, 4, 5, 7 years, a secondary forest that has never been cultivated, and a field under a ridge and flat continuous cultivation - an innovative farming practices adopted in continuous annual cropping. Vegetation sampling was conducted in sites under fallows and the secondary forest. Intensification of shifting cultivation through shortening of fallow length deteriorates soil quality due to a decline in total N, plant-available P, and exchangeable K. Furthermore, shortening of fallow length negatively affects the recovery of plant species composition and diversity. The dominant plant species in young fallows (1 -4-years) was different from older fallows (5-and 7-years) and the secondary forest. Young fallows harbored more diverse vegetation but mostly shrubs (multiple stems, ≤5 m tall) while older fallows and secondary forest were less diverse but dominated by trees (single stem, > 10 m tall). Soils under the ridge and flat continuous cultivation had significantly higher plant-available P than in soils under fallow or secondary forest. Moreover, the soil under the ridge and flat cultivation contained levels of soil pH, plant-available P, exchangeable K, and Ca that have been described as sufficient for crop production.
AB - This study investigated the effect of intensification of shifting cultivation on the recovery of soil properties and vegetation in East Central, Tanzania. The study is based on soil sampling conducted in 40 (5 m × 5 m) plots from adjacent sites under fallows of 1, 2, 3, 4, 5, 7 years, a secondary forest that has never been cultivated, and a field under a ridge and flat continuous cultivation - an innovative farming practices adopted in continuous annual cropping. Vegetation sampling was conducted in sites under fallows and the secondary forest. Intensification of shifting cultivation through shortening of fallow length deteriorates soil quality due to a decline in total N, plant-available P, and exchangeable K. Furthermore, shortening of fallow length negatively affects the recovery of plant species composition and diversity. The dominant plant species in young fallows (1 -4-years) was different from older fallows (5-and 7-years) and the secondary forest. Young fallows harbored more diverse vegetation but mostly shrubs (multiple stems, ≤5 m tall) while older fallows and secondary forest were less diverse but dominated by trees (single stem, > 10 m tall). Soils under the ridge and flat continuous cultivation had significantly higher plant-available P than in soils under fallow or secondary forest. Moreover, the soil under the ridge and flat cultivation contained levels of soil pH, plant-available P, exchangeable K, and Ca that have been described as sufficient for crop production.
U2 - 10.1007/978-3-031-10406-0_3
DO - 10.1007/978-3-031-10406-0_3
M3 - Book chapter
SN - 978-3-031-10405-3
SN - 978-3-031-10408-4
SP - 21
EP - 42
BT - Agriculture, Environment and Sustainable Development
A2 - Rukhsana, null
A2 - Alam, Asraful
PB - Springer
CY - Cham
ER -
ID: 321280479