There is a growing need for better information on how remote sensing data can support biodiversity monitoring in tropical forests. In response to this need a new sourcebook has been published with the aim of informing national and sub-national policy and decisions.
More than 70 authors, several of them from the IUFRO community, contributed to the sourcebook that is targeted at project managers, academic institutions, NGOs, students and researchers, among others, with a background in remote sensing. Read more…
IUFRO Regional Congress for Asia and Oceania 2016
24 – 27 October 2016, Beijing, China
Forests for Sustainable Development: The Role of Research
The Beijing Declaration
Keynote Speech by Professor Makoto Yokohari, The University of Tokyo, at the IUFRO Regional Congress for Asia and Oceania
Restoring biodiversity by reforesting urban fabrics is one of common urgent tasks for cities in the world in general and in the Asia and Oceania region in particular. After all, seven of the ten largest cities in the world are in this region. One of these cities is Tokyo. It accommodates 10 million people. More than 30 million people live in the national capital region; this is one third of the total population of Japan. However, despite the high number of population in Tokyo, one third of its area is mountainous, largely covered by natural and planted forest patches.
We should be aware of the fact that where you find megacities you often also find high biodiversity. Consequently, when talking about biodiversity, we cannot exclude cities as they often coincide with biological hotspots. Of course, the green spaces in cities do not only serve the purpose of biodiversity but they are also used by people for recreation. Urban greens are areas of human comfort. But how to balance between human comfort and biodiversity? Read more…
Keynote Presentation by Don Koo Lee, Seoul National University, Korea, Tuesday 25 Oct 2016
This most inspiring talk about the important roles of trees, soil and forests for human life highlighted ways of how to achieve sustainable development and showcased success stories, especially the historic achievement of reforesting Korea.
The goods and services provided by forests are manifold and indispensable for people and the environment. Forests are crucial, among other things, for stabilizing soil, providing water resources, supporting biodiversity, protecting against natural hazards, delivering timber and non-timber products, and, quite importantly, combatting climate change. In order to ensure that future generations will be able to enjoy the same benefits from forests, sustainability is indispensable in the management and use of natural resources. Read more…
Opening of the first ever IUFRO All Division 8 “Forest Environment” Conference on 23 October, 2016, in connection with the IUFRO Regional Congress for Asia and Oceania in Beijing, China
In his inaugural statement IUFRO Division 8 Coordinator Jean-Michel Carnus highlighted the complete alignment of IUFRO Division 8’s thematic focus with the Regional IUFRO-AO 2016 Congress theme of “Forest Environment under changing climates and societies“.
Recognizing that the participants were the most important ingredients of a successful Congress, IUFRO Vice-President Björn Hånell proudly acknowledged the 20 sessions and 100 presentations of Division 8 that had been fully integrated into the Congress program. He pointed out that the need for knowledge on forest environment had never before been so urgent. And, since such a broad field cannot be mastered alone, scientific cooperation and networking are of utmost importance. Read more…
Managed forests are important landscape components in tropical regions. But an understanding of the response of the forests’ biodiversity to silvicultural interventions has been limited.
Finding out more about how that biodiversity responds was a fundamental question behind the research leading to the publication of Medium-term dynamics of tree species composition in response to silvicultural intervention intensities in a tropical rain forest. Read more…
American Indian forestry: blending science and tradition
For thousands of years, American Indians have been managing the forests in which they live.
Today, with trained professionals who are tribal members, their forests are managed with modern tools and methods; include manufacturing facilities and address global forest issues such as climate change, forest certification, carbon sequestration and a changing work force.
By John Parrotta (Deputy Coordinator, IUFRO Division 8) and Lawal Marafa (Chair of the Conference Organizing Committee)
Dealing with uncertainties
REDD+ (reducing greenhouse gas emissions from deforestation and forest degradation, and enhancing forest carbon stocks in developing countries) is an evolving mechanism for climate change mitigation under continued debate within and outside of the UN Framework Convention on Climate Change (UNFCCC). While it has the potential to realize its primary climate change mitigation objective, there is considerable uncertainty regarding its actual or potential impacts on biodiversity, forests and the livelihoods of people in the tropical and sub-tropical forested landscapes where REDD+ implementation is envisaged.
Impacts of logging on carbon storage and biodiversity in tropical production forests of Latin America
Moderator: Plinio Sist, CIRAD-ES, France
Friday, 14 June 2013, 8:00-10:00 (Chirripó)
Find more information on the IUFRO Task Force on Biodiversity and Ecosystem Services at:
The session addressed the very important issue of the trade-offs between biomass harvest, carbon storage and biodiversity. Biomass harvest is negatively correlated with biomass storage and, in most cases, with biodiversity.
A key finding of the first presentation, which dealt with a permanent plot experiment in the Amazon, is that logging intensity affects biomass recovery rate and period. The study determined that increased logging intensity is ensued by increased recovery rate, but increases the recovery period.
Another presentation highlighted the effects of logging after 30 years on tree diameter, timber species and floristic diversity. Floristic diversity had recovered to the original state. Conversely, diameter distribution was less heterogeneous and tree species composition had shifted to pioneer and other light demanding species.
The role of individual big trees was also highlighted in a presentation. The study conducted in Pará, Amazon, found that selective logging caused a net biomass storage decrease. Moreover, selective logging creates instability in stands, which results in elevated natural mortality of individual big trees, even 8 years subsequent to logging.
Another presentation emphasised the role of disturbance regimes, showing data that El Nino decreased standing biomass more than logging; where mature stands suffered more damage than newly logged stands. Emphasis was placed on the importance of rotation cycles, as the risk of devastating disturbance regimes increased with increasing rotation periods.
Presentations in this session:
Is Tropical Forest Conservation through silviculture possible? The contribution of Tropical Production Forest Observatory Sentinel Landscape. (Plinio Sist, CIRAD-ES, France)
Thirty years after logging: Three species dynamics in the Tapajos National Forest, Eastern Amazon. (Ademir Ruschel, Embrapa Amazonia Oriental, Brazil
20 years forest dynamics study case in the Embrapa Acre Forest in Acre State, Brazilian Western Amazon. (Marcus d’Olivera)
La dinámica a largo plazo de la diversidad taxonómica y functional de especies leñosas en bosques lluviosos tropicales aprovechados y con tratamiento silvicultural en Costa Rica. (Bryan Finegan, CATIE, Costa Rica)
Post-logging biomass recovery: a pan-tropical analysis (J Putz, Alexander Shenkin)
Bosques, Biodiversidad y Servicios Ecosistémicos / Forests, Biodiversity and Ecosystem Services
Session moderator: Bryan Finegan, CATIE, Costa Rica, IUFRO Task Force Coordinator
Thursday, 13 June 2013, 14:00-16:00 (Chirripó)
Find more information on the IUFRO Task Force Forests, Biodiversity and Ecosystem Services:
The session offered insight into functional ecology, with emphasis on climatic conditions along elevation gradients showing that biodiversity decreases with increasing altitude. It also dealt with the provision of ecosystem services in relation with biodiversity. Biodiversity is essential for pest damage resistance, for example. Source dilution, chemical signals and activity of natural enemies are identified as being essential for ensuring low pest damage. With increased source dilution, pests are less likely to establish themselves in a diverse setting. With increased chemical signals associated with diverse flora, pests are less likely to find their favourite source. And with a high number of natural enemies, whose presence is correlated with high biodiversity, pests are less likely to cause damage. Hence, diversification on a stand/landscape level is needed to ensure the provision of forest ecosystem services.
Plant conservation in Southeast Asia was another topic. In Malaysia, for example, efforts to preserve plants have become a prevalent goal for scientists. Diversity is vast, and since 40 – 50 % of the preserved species are endemic, 24% of which are either endangered (EN) or critically endangered (CR), conservation is a central goal. While the pleas of scientists are being heard in some cases, legal frameworks are needed to protect these species.
A presentation on the carbon sequestration potential for complex mosaic forest landscapes in western Mexico aimed at addressing shifting cultivation, framed in the carbon emission discourse. With shifting cultivation, carbon is released to the atmosphere, adding to GHG concentrations. However, the study showed that on a landscape level, there are no net carbon dioxide emissions, as the carbon sequestration rate of forest re-growth compensates for the carbon emission from shifting cultivation.
The presentation entitled “Native forest cover increase: drivers and implications on ecosystem services”, focused on why some areas in the Piracicaba river basin were allowed to reforest. Satellite imagery helped determine deforestation and reforestation from 1990 – 2010. Having preselected variables, the results demonstrate that natural reforestation occurs when slopes exceed 30%, when water proximity is less than 100 m, when annual rainfall exceeds 1400 mm, when elevation is lower than 400 m below sea level or more than 800 m above sea level, and when vicinity to towns is more than 7 km.
The final paper focused on Chakras, forestry systems that are employed by indigenous peoples in the Amazon. Plant composition in Chakras is heterogeneous; they provide multiple sources of food, are biodiverse and function as stores of carbon. The presented study demonstrated that in Chakras, fauna is more diverse, carbon storage is higher in both biomass and necromass than in comparable Cocoa plantations.
Presentations in this session:
Bosques lluviosos tropicales, biodiversidad y servicios ecosistémicos en la era de cambio global; nuevas perspectivas desde la ecología functional (Bryan Finegan, CATIE, Costa Rica)
Forest biodiversity and resistance to pest damage. (Eckehard Brockerhoff, Scion, New Zealand)
Challenges in Developing Practical Plant Conservation Strategy in SE Asia. (Su See Lee, FRIM, Malaysia)
Carbon sequestration potential for complex mosaic forest landscapes in western Mexico. (Lucia Morales Barquero, Bangor University, UK)
Native forest cover increase: drivers and implications on ecosystem services. (Paulo Molin, Laboratorio de Hidrología Florestal, Brazil)
Variación en el almacenamiento de carbono, conservación de la biodiversidad y productividad en dos sistemas productivos, comparados con bosques primarios en la Amazonia ecuatoriana. (Bolier Torres Navarrete, Universidad Estatal Amazónica, Ecuador)