Journal Articles

Management and Performance of Eucalyptus camaldulensis in the Murewa and Mutoko Districts of Zimbabwe

BACKGROUND

Zimbabwe’s afforestation program has used Eucalyptus trees because of their fast growth rate and their ability to adapt to different environmental conditions. These trees are grown to provide fuelwood and to curb deforestation. However, the afforestation program had poor results. Hence, there was a need to examine causes of poor performance to justify why the program still needs expansion.

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Co-management options for reserved forests in Zimbabwe and beyond: Policy implications of forest management strategies

BACKGROUND

After the year 2000 land reform program in Zimbabwe, some peasants began to take advantage of the land reform impetus to squat on forests even though the State had attempted to preserve all conservation areas from land resettlement. Ever since, there have been conflicts between the state and the people living around forests. Co management or joint management initiatives were introduced to try to solve these People- State Relations.

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Plantation Forestry in Sub Saharan Africa: Silvicultural, Ecological and Economic Aspects

BACKGROUND

Plantation forestry in Africa is practiced using exotic species to supply timber and non- timber forest products, which are for industrial and non- industrial purposes. Ownership of the plantations extends from governments and large industrial corporations to individual farmers. Private plantations are performing well, with a better supply compared to the public ones. Plantation programs in Africa have undergone various challenges leading to a decline in production in the past two decades.

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Management of non-timber forestry products extraction: Local institutions, ecological knowledge and market structure in South-Eastern Zimbabwe

BACKGROUND

Sengwe communal lands, in South East Zimbabwe were used to examine how they manage non timber forest products (NTFPs) as a common pool resource in that area. The area consists of five wards, of which four are communally owned. The government has a protected area engulfed by the local communal property system; both communal and state property regimes are involved in the management of certain resources.

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Fires in exotic forest plantations of Zimbabwe: Causes and management strategies

BACKGROUND

Of the 201,704-ha allocated to plantation forestry in Zimbabwe, 95,754-ha is usable. Forest plantations are mainly composed of Eucalyptus, Wattle and Pine. The dominant species grown are Pinus patula, P. taeda, E. grandis and Acacia mearnsii. Revenue is generated from timber exports. Forest fires are the major contributors of significant financial losses in these commercial plantations. Hence this article examines the causes of these fires and possible strategies for mitigating these anthropogenic fires.

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Core principles for successfully implementing and upscaling Nature-based Solutions

BACKGROUND

The degradation of the natural environment continues to impact on biodiversity, human health and well-being notwithstanding various initiatives to restore ecosystems and conserve the diversity of life within it. Increasing the interface between conservation and sustainable development goals through the Nature-based Solution (NbS) framework show promising results. However, there is a need to address the gaps to effectively implement, assess and upscale NbS programs in different parts of the world

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Leverage points for improving global food security and the environment

BACKGROUND

Meeting global food demands is still a challenge, yet agriculture has been one of the main driving forces of greenhouse gas emissions. Hence, this study focused on identifying small regions, actions that can be taken and crops with a potential of increasing global yields, with an efficient system of food delivery and reducing the negative impacts of agriculture on the environment.

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Growth of native tree species planted in montane reforestation projects in the Colombian and Ecuadorian Andes differs among site and species

BACKGROUND

Tropical Andes in Columbia and Ecuador have been affected by forest clearance and degradation for several centuries. Agriculture has been the primary driver of land use change as well as mining to a lesser extent. To restore the degraded sites, native species have been used in various projects, however with little information on growth performance of the planted tree species in relation to site and soil nutrient status. A greater part of the northern Andes has volcanic ash derived soils.

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Nitrogen-fixing trees inhibit growth of regenerating Costa Rican rainforests

BACKGROUND

Nitrogen fixing plants are the primary source of nitrogen in forests, and it is expected that more nitrogen fixers will bring in faster growth. Hence this study conducted, in a humid tropical rainforest North- East Costa Rica, challenged this notion. The area of study had similar dominant species, with P. macroloba being the most dominant Nitrogen fixer.

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Pest management through tropical tree conservation

Background

Deforestation and crop monocultures in Veracruz, Mexico are leading to the disappearance of indigenous trees and the animal species that depend on them. This is particularly troubling to local agricultural workers who benefit from species like hymenopteran parasitoids that attack pest fruit flies. This research evaluates the relationship between hymenopteran parasitoids, pest fruit flies and their fruit hosts and proposes potential strategies for conservation and pest management.

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