Download presentation
Presentation is loading. Please wait.
1
Global Forest Issues Dave McGill Professor/Extension Specialist Forest Resources Management
2
Outline Defining “forest” for international policy and inventory Deforestation and illegal logging International efforts to curb deforestation
3
Ballons des Vosges, France Defining “forest”
4
Santa Barbara, Honduras
5
Leyte Island, Philippines
6
Luberon, France
7
Nellore, AP India
8
Guidan Atiti, Niger
9
International actions concerning forests Two international conferences in the 1990s focusing on improving global environmental issues. – 1992 UNCED “Earth Summit” in Rio de Janiero – 1997 UNFCCC in Kyoto, Japan Terms used in discussions: – Deforestation, reforestation, afforestation, old-growth forests, forest biodiversity, sustainable forest management. IUFRO 6.03 took on project to survey definitions Source: Lund, H.G. 2002. When is a forest not a forest. J. For. 100(8):21-27.
10
Lund 2002—When is a forest not a forest? J. For. 100(8):21-27. Worldwide survey of published definitions. Found 149 definitions for tree. – Some of these included “palms, bamboo, shrubs, vines, creepers, canes, coppice shoots, and orchids. Definitions of forest were more complex – Administrative unit – Land use – Land cover Source: Lund, H.G. 2002. When is a forest not a forest. J. For. 100(8):21-27.
11
Thresholds for defining forests Lowest thresholds – Area: 0.01 ha; Belgium, Northern Mariana Islands – Crown Cover: 1%; Iran Highest thresholds – Area: 100 ha; Malawi, Papua New Guinea – Crown cover: 80%; Malawi, Zimbabwe Source: Lund, H.G. 2002. When is a forest not a forest. J. For. 100(8):21-27.
12
Forest Resources Assessments About every 5 years, the UN FAO monitors the state of the worlds forests. Between 1948 and 1963 these Forest Resources Assessments were solely questionnaire based. 1990 was the first FRA to use remote sensing to corroborate inventories. 2010 FRA will use questionnaires and thematic studies as well as a complete global remote sensing survey.
13
2005 FRA Definitions Have 3 categories related to tree covered lands – Forest Minimum 0.5 ha; trees able to reach 5m; and greater than 10% canopy cover. Excludes agroforestry and fruit tree orchards, urban parks and gardens. – Other wooded land Land not classified as forest; 0.5 ha and trees attaining 5m with 5-10% canopy cover. Excludes predominately agricultural and urban land uses. – Other land with tree cover Minimum 0.5 ha; 5m canopy height; >10% canopy cover; Includes trees planted in ag and urban settings.
14
2005 FRA Key Findings 4 billion ha of forest Deforestation continues but at a decreasing rate – 1990-2000: 8.9 million ha per year – 2000-2005: 7.3 million ha per year Primary forests 36% of total forest area – These are forests that are no visible indications of human activity and ecological processes are not significantly disturbed.
15
Planted Forests Comprise 7% of the total area in forests worldwide. Provide opportunities for economic, ecological, and social benefits. Plantations for products and for environmental services.
16
Planted Forests Center for International Forestry identifies 5 different types of planted forests: – Industrial plantations – Home and farm plantations – Environmental plantations – Managed secondary forest with planting – Restored natural/secondary forest Adapted from Evans 2009
17
3-yr-old Leucaena—Guntur, AP India 7-yr-old Eucalyptus—Medak, AP India
18
Homegarden—El Tule, Honduras
19
Kogagutham Open Pit Coal Mine, AP India
20
Water harvesting—Niger, West Africa
21
Leyte, Philippines
22
Cebu, Philippines Deforestation and Degradation
23
Deforestation—forest is cut by people and is then used for other purposes, primarily agriculture or infrastructure Deforestation—forest is cut by people and is then used for other purposes, primarily agriculture or infrastructure Degradation—forest composition and quality is modified, but no net loss in area.. Degradation—forest composition and quality is modified, but no net loss in area..
24
Causes of Deforestation Direct factors – Conversion to agriculture; wood overexploitation; infrastructure development. Indirect factors – Road construction leads to increased access. Underlying driving forces (triggering mechanisms) – Demographic, economic, technological, cultural. Sources: JP Lanly. 2003; Geist and Lambin, 2002.
25
Illegal Logging Extent Timber harvesting activities that are inconsistent with national or subnational laws. In some countries, as much a 80-90% of timber harvested. True amount unknown. Sources: Smith 2002; photo: www.villageearth.org/pages/Projects/Peru/peru...
26
Impacts of illegal logging A global issue National loss of revenue Environmental damage Socioeconomic effects (loss of jobs) Reduced access to materials for subsistence. Decreases profitability of legally harvested timber.
27
UN-REDD UN-REDD—UN Collaborative Programme on Reducing Emissions of Deforestation and Degradation Originated from discussion of climate change under the UNFCCC. Founded on the notion that 20% of greenhouse gas emissions were due to DD. Is a form of payment for environmental services program.
28
UN-REDD Idea is to develop a financial mechanism to support developing countries in modifying forest use behavior. Scope of program addresses deforestation, degradation, and carbon stocks. State of REDD: 9 nations involved in “quick-start program” including Democratic Republic of the Congo, Tanzania and Zambia; Indonesia, Papua New Guinea and Viet Nam; Bolivia, Panama and Paraguay
29
UN-REDD
30
This “quick start” program is expected to yield some of the successes and challenges of this payment for services program. Negotiations still underway for unresolved issues: – Financing and distribution – Monitoring, reporting and verification – Stakeholder involvement – Environmental and social co-benefits
31
END
Similar presentations
© 2024 SlidePlayer.com. Inc.
All rights reserved.