Allanblackia, butterflies and cardamom: sustaining livelihoods alongside biodiversity conservation on the forest–agroforestry interface in the East Usambara Mountains, Tanzania

Mpanda, Mathew; Munjuga, M.; Reyes, Teija; Said, Aminu Saad; Rutatina, F.; Kimaro, Anthony A.; Noordwijk, Meine van

doi:10.1080/14728028.2014.895215

Cited by 12 publications

(8 citation statements)

References 31 publications

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“…Tree were found to have multiple uses and their retention and/planting on farm has been common in other mountainous areas of Tanzania. Farmland further serves for ex-situ conservation of important tree species [8]. This study identified one species ( Table 3) Prunus africana which has been listed as Vulnerable by the IUCN [40], due to its overexploitation in the wild for traditional medicine through debarking.…”

Section: Tree Species Diversitymentioning

confidence: 99%

Effect of Soil Properties on Tree Distribution across an Agricultural Landscape on a Tropical Mountain, Tanzania

Mpanda¹,

Majule²,

Sinclair³

et al. 2016

OJE

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Distribution of tree species can result in many factors including environmental variables, biotic interaction and management. Better understanding of these interacting factors is crucial in planning management interventions especially in managed landscapes: this study on the effect of soil properties on tree species distribution in Kilimanjaro, Tanzania will aid in this. Standard tree inventory procedures and soil sampling techniques were used to survey 48 plots from altitudinal level of 680 to 1690 m a.s.l. along 25 km long transect. All trees ≥ 5 cm at DBH were recorded, while soils were sampled from top and subsoils (0-20 and 21-50 cm depths). Tree species distribution index was assessed through abundance and frequency, while species interaction with environmental variables was assessed using Detrended Correspondence Analysis. Distribution index indicated that 77% of tree species were categorized as rare, while 10% and 13% were categorized as occasional and abundant respectively. Soil organic carbon and moisture content have shown high correlation with tree species (r > 0.8, p < 0.01), while ExMg, soil pH, P, ExCa, ExK, ExNa and bulky density indicated less correlation (r < 0.2, p < 0.001). The DCA-1 axis explained nearly 70% of the relationships between soil properties and tree species distribution: suitability of tree species were influenced by soil properties across the land use systems which exhibited different soil types. Different tree species communities correspond differently with soil properties between the land use systems. Fewer tree species spread in the lowland, which is known to have saline soils. Therefore, despite intensive human management of the landscape, tree species indicated distribution patterns in line with the soil properties.

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Section: Tree Species Diversitymentioning

confidence: 99%

Effect of Soil Properties on Tree Distribution across an Agricultural Landscape on a Tropical Mountain, Tanzania

Mpanda¹,

Majule²,

Sinclair³

et al. 2016

OJE

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“…While tree cover has been decreasing within natural forests, there have been some increases in agricultural lands (Zomer et al 2014). This follows efforts to diversify tree cover on farmland through domestication of indigenous tree species and other high value tree crops that can bring broader co-benefits of increased ecosystem services (Dawson et al 2013;Mpanda et al 2014). Incorporating trees into agro-ecosystems can help mitigate the impacts of climate change, provide habitat for biodiversity (Nkem et al 2007) and support crop production (Lal 2006) while increasing SOC.…”

Section: Introductionmentioning

confidence: 99%

Relationships between on-farm tree stocks and soil organic carbon along an altitudinal gradient, Mount Kilimanjaro, Tanzania

Mpanda

Majule

Sinclair

et al. 2016

Forests, Trees and Livelihoods

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“…While technically it is a small step to shift from accidental to deliberate seed dispersal, the economics is challenging of a transition from a situation where human labour is spent only for harvesting products to one that involves planting, tending and caring for young trees many years before they yield commercial products (Martini et al 2012). Only when the search time for products in the wild equals, per unit product, the discounted time spent on tree growing, will the domestication hurdle of controlled tree reproduction be overcome and be left under the control of market forces (Mpanda et al 2014). Farmer-driven domestication is led by subsistence use and local markets, such as nutrition and food Schreckenberg et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Domestication of Dyera polyphylla (Miq.) Steenis in peatland agroforestry systems in Jambi, Indonesia

et al. 2015

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As part of a broader pattern of recovery after decline called forest transition, tree cover and carbon stocks have increased through agroforestry systems in many parts of Indonesia. The associated tree diversity transition implies that only the most useful parts of local tree flora are promoted. Swampland jelutong, Dyera polyphylla, has been domesticated in peat areas Jambi province, Indonesia. We discuss jelutong domestication in two coastal districts, referring to seven steps in a gradual change from products collected from communal natural forests to specific genotypes managed on private farms. Domestication of D. polyphylla in Jambi was in the initial stages three decades ago, when jelutong latex was directly tapped from the trees in its natural habitat of peat swamp forests. Tapping jelutong latex stopped in 2005 following the national regulation taxing forest products. Some farmers then started jelutong cultivation, motivated by the profitability of trading jelutong latex in the past. Our on-farm study showed that jelutong can be planted in various mixed agroforestry systems, with rubber, coffee or oil palm as dominants.Planted jelutong with good farm management showed diameter growth rates of 1.3 to 1.9 cm year -1 . Onfarm trials showed that dolomite as soil ameliorant did not affect diameter growth, but had some effect on height. Jelutong planted between young oil palm had the best performance, while jelutong that was underplanted in mature rubber gardens grew slowly. Slow market revival currently constrains further tree domestication of jelutong.

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Allanblackia, butterflies and cardamom: sustaining livelihoods alongside biodiversity conservation on the forest–agroforestry interface in the East Usambara Mountains, Tanzania

Cited by 12 publications

References 31 publications

Effect of Soil Properties on Tree Distribution across an Agricultural Landscape on a Tropical Mountain, Tanzania

Effect of Soil Properties on Tree Distribution across an Agricultural Landscape on a Tropical Mountain, Tanzania

Relationships between on-farm tree stocks and soil organic carbon along an altitudinal gradient, Mount Kilimanjaro, Tanzania

Domestication of Dyera polyphylla (Miq.) Steenis in peatland agroforestry systems in Jambi, Indonesia

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