Rationale and key research questions addressed by field trails established as part of the ACIAR Smallholder Tree Farmer Project

A series of field trials have been established as part of the ACIAR Smallholder Tree Farmer Project. These trials are designed to have both a research and demonstration function. A field trial was designed to investigate the potential interaction between four species providing a combination of native and exotic species and nitrogen-fixing vs non-nitrogen-fixing. Importantly, this design provides information about different mixture ratios using only one plot. This field trial will provide important information about the interactions of the four species when grown in varying mixture ratios. A clinal trial using the design of Vanclay (2006) was established in Leyte Leyte in December 2007 using four species. This trial will provide important information on ideal spacing at which trees should be established and how initial planting density affects site capture and early growth, especially in respect to indigenous species. Field trials have also been established to investigate the effect of fertiliser and shade on the establishment and early growth of mayapis and to demonstrate the positive impact that the use of high quality germplasm and good early age silviculture has on the growth of gmelina. The establishment of the field trials has been an important capacity building exercise within the project team. Filipino collaborators have been intimately involved in the design, establishment and monitoring of the field trials and are now capable of establishing similar rigorous field experiments

Evidence-based target characteristics for seedlings: Experimental design, initial results from field trials and future research

Low seedling quality is a pervasive problem for smallholder forestry in the Philippines. Intervention measures to improve seedling quality are being examined in a research project funded by the Australian Centre for International Agricultural Research. Field trials have been established as part of this ‘seedling enhancement project’ to compare performance on outplanting of Gmelina arborea when imported, selected and non-selected seeds are used. Itis expected that this research will provide important information for the development of evidence-based guidelines for seedling quality, and assist in refining the best practice manuals for seedling production

Metrics to evaluate research performance in academic institutions: A critique of ERA 2010 as applied in forestry and the indirect H2 index as a possible alternative

Excellence for Research in Australia (ERA) is an attempt by the Australian Research Council to rate Australian universities on a 5-point scale within 180 Fields of Research using metrics and peer evaluation by an evaluation committee. Some of the bibliometric data contributing to this ranking suffer statistical issues associated with skewed distributions. Other data are standardised year-by-year, placing undue emphasis on the most recent publications which may not yet have reliable citation patterns. The bibliometric data offered to the evaluation committees is extensive, but lacks effective syntheses such as the h-index and its variants. The indirect H2 index is objective, can be computed automatically and efficiently, is resistant to manipulation, and a good indicator of impact to assist the ERA evaluation committees and to similar evaluations internationally.Comment: 19 pages, 6 figures, 7 tables, appendice

Establishing field trials to promote smallholder forestry in Leyte, The Philippines

The quality of planting material is one of the key factors that determine the success of tree farming and reforestation activities. In the Philippines, low quality seedlings are commonly used in smallholder plantings for reasons such as the limited supply of high quality seedlings and smallholders’ lack of awareness of the benefits of using high quality planting stock. The ACIAR-funded seedling enhancement project has been carrying out training and extension activities to enhance the knowledge of tree farmers about the importance of high quality planting material and improve the capacity of nursery operators in the production of high quality seedlings. Various field trials were established to gain new knowledge on tree farming and to demonstrate to smallholders the result of adopting the best management practices

Initial gas exchange results from field trials

Gas exchange measurements were undertaken at field trials to investigate the impact of thinning of 12 year old gmelina plantations located at Bato. Amax for leaves at the thinned site were significantly higher (pnarra>mahogany>mayapis. This pattern is also reflected in the average height of each species but not in the pattern for average biomass (number of leaves) and dbh which followed the pattern of falcata>mahogany>narra>mayapis. The reversal of mahogany and narra suggests a different pattern of resource allocation. Narra has high rates of Amax with a smaller number of leaves compared with mahogany which has a lower rate of Amax but a much greater number of leaves and total leaf biomass. There was a substantial difference between the light curves for 11 month old gmelina trees in the three experiment plots with a 3 m x 3 m spacing compared with gmelina trees in the one experimental plot with a 4 m x 4 m spacing (Figure 6). The preliminary interpretation of these results is that at even a very early age, resources are becoming limiting for photosynthesis at a 3 m x 3 m spacing. This unexpected finding will be investigated further with a variable spacing trial

Modelling Interactions amongst People and Forest Resources at the Landscape Scale

FLORES, the Forest Land Oriented Resource Envisioning System, is a framework to facilitate quantitative modelling of ecological, economic and social issues at the landscape scale. This piece describes the evolution of FLORES from a concept to a series of models calibrated for diverse locations, and documents the lessons learned

Bringing Shared Visions to Life

This book is about encouraging people to share visions and helping them to progress from these visions to take appropriate actions that will help realise their vision. The choice of appropriate actions is a key aspect of this book, and we dwell on some ways to ensure that chosen actions are effective ways to make progress in realizing a vision

Researching Incomplete Markets: A Strategy for Timber Market Research in Leyte

The economic concepts of imperfect markets and incomplete information are examined, in the context of the market for smallholder timber in Leyte Province in the Philippines. A strategy is advanced to carry out timber market research, which involves identification of the supply chain and stakeholder groups in the Leyte timber market, snowball sampling to identify initial market agents, making contact with market agents to obtain initial information and identify those willing to be interviewed, and an interview survey with an unstructured questionnaire to obtain more detailed information. This amounts effectively to a series of case studies, obtained using qualitative research methods. Suggestions are made on how to process survey data, to provide information in support of the specific objectives of the market research