Trends in forest conditions and implications for resilience to climate change under differing forest governance regimes: the case of Mount Elgon, East Africa

Abstract

Mount Elgon is a transboundary East African montane ecosystem that harbors unique biological diversity and provides critical goods and services to the surrounding densely populated communities. As a key water tower, the effectiveness of forest-and land-management policies has direct impacts on agriculture, hydropower, fisheries and other sectors across large watersheds in Uganda and Kenya (and onward to the whole Nile River basin). The Uganda Wildlife Authority (UWA), the Kenya Wildlife Service (KWS) and the Kenya Forest Service (KFS) have developed a range of exclusionary protected area and partial-access participatory forest management approaches to enforce national conservation mandates in different portions of the Mount Elgon. The future resilience of forest assemblages will be challenged as climate change and increased variability in weather patterns interact that with societal interventions that may enable the introduction of exotic species, the expansion of diseases. The objective of this study was to assess the impact of different forest governance regimes on forest structure and composition over time (1997-2014). Two study sites in Uganda (Kapkwai and Bufuma) and Kenya (Chorlem and Kimothon) under differing forest governance arrangements were monitored from 1997 to 2014 using the International Forestry Resources and Institutions (IFRI) methodology. Each forest unit was sampled three to four times (1997, 2001/2, 2008, 2013/14), at 30 randomly established sample plots. Data was collected on seedlings (counts), saplings and shrubs (diameter at breast height [DBH] and height), trees (DBH and height) and …