Fire has been used to prepare land during tree plantation establishment for many years but uncertainty about how ecosystems respond to prescribed burning makes it difficult to predict the effects of fire on soil nutrients. The aim of this study was to determine the effect of burning accumulated forest residues (slash) on soil chemical properties and how trees respond. We analyzed 40 burned and unburned sites and compared growth of Eucalyptus grandis W. Hill ex Maiden between sites. Soil pH increased by 39% after fire, suggesting reduced soil acidity and increased liming. Total nitrogen increased by 100%; other nutrients (Ca 2? , Mg 2? and K ?) also increased. Increase in nutrients had a significant effect on the growth of E. grandis; larger and taller trees were associated more with burned than unburned sites. This study provides evidence that burning accumulated slash during land preparation prior to plantation establishment alters soil nutrient status and enhances the growth of E. grandis.

No abstract

No abstract

Zambia has one of the largest forest resources in southern Africa with almost 66% of its land mass under forest cover. However, indiscriminate harvesting of valuable timber resources for commodity-type products such as sawn-timber, charcoal and fuel-wood are the main drivers of forest depletion. Challenges related to customary-lands, land-tenure, lack of information about forest resources as well as the weak institutions is contributing factors that have accelerated to steady reduction of forest cover in the country. The need for investments in the forest products sector and an equitable sharing of benefits with local communities are prerequisites to shift into higher value-added manufacturing. In the context, the implementation of the REDD+ initiatives, which aims to build capacity and technical knowledge on the ground together with improved monitoring, reporting and verifying of the forest resources data from a centrally planned command could help to arrest the depletion of the forest through better planning and management of the resources.

No abstract