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1.
J Environ Manage ; 327: 116874, 2023 Feb 01.
Article in English | MEDLINE | ID: mdl-36446193

ABSTRACT

The EU's Forest Law Enforcement, Governance and Trade Action Plan (FLEGT) adopted in 2003 includes bilateral trade agreements known as Voluntary Partnership Agreements (VPAs) signed between the EU and timber-supplying countries. The EU has invested more than 1.5 billion euros in VPAs; however, only one of the seven concerned countries has managed to complete all the necessary requirements to expire FLEGT licences. Since there is no research that comprehensively integrates the scientific evidence regarding the effects of this policy, this study systematically reviews all empirical scientific studies on the effects of VPAs. We found that almost all relevant studies are case reports that use qualitative data and focus on only one country at a time, mainly Ghana, Cameroon, or Indonesia. The evidence suggests that while VPAs have contributed to the establishment of governance structures, tools, and procedures they have not been able to solve social problems (i.e., inequality and injustice) and have potentially harmed the economies of EU timber suppliers. Evidence on the effects of VPAs on illegal logging and trade and the environment remains limited. Thus, future research should focus on more countries; use a greater range of methods, including comparative experimental designs; explore possible intended effects on under-researched categories; and systematically investigate unintended effects on other categories within and outside the forestry sector.


Subject(s)
Conservation of Natural Resources , Forestry , Conservation of Natural Resources/methods , Forestry/methods , Forests , Indonesia , Ghana
2.
Sensors (Basel) ; 14(8): 14994-5008, 2014 Aug 14.
Article in English | MEDLINE | ID: mdl-25196006

ABSTRACT

An automated laser rangefinding instrument was developed to characterize overstorey and understorey vegetation dynamics over time. Design criteria were based on information needs within the statewide forest monitoring program in Victoria, Australia. The ground-based monitoring instrument captures the key vegetation structural information needed to overcome ambiguity in the estimation of forest Leaf Area Index (LAI) from satellite sensors. The scanning lidar instrument was developed primarily from low cost, commercially accessible components. While the 635 nm wavelength lidar is not ideally suited to vegetation studies, there was an acceptable trade-off between cost and performance. Tests demonstrated reliable range estimates to live foliage up to a distance of 60 m during night-time operation. Given the instrument's scan angle of 57.5 degrees zenith, the instrument is an effective tool for monitoring LAI in forest canopies up to a height of 30 m. An 18 month field trial of three co-located instruments showed consistent seasonal trends and mean LAI of between 1.32 to 1.56 and a temporal LAI variation of 8 to 17% relative to the mean.


Subject(s)
Automation/instrumentation , Environmental Monitoring/instrumentation , Plant Leaves/physiology , Australia , Ecosystem , Forests , Lasers
3.
Trends Ecol Evol ; 26(12): 641-6, 2011 Dec.
Article in English | MEDLINE | ID: mdl-21880394

ABSTRACT

We recently proposed the adaptive monitoring approach for improving ecological monitoring, but to date no explicit examples exist. In this review, we demonstrate adaptive monitoring using two new case studies where pre-existing monitoring programs were redesigned to address new policy and scientific questions without breaching the integrity of past and ongoing time-series data. Lessons underpinning successful adaptive monitoring are: better recognition of the potential inter-relationships between adaptive monitoring and adaptive management to improve adoption of both; an understanding of what constitutes adaptive monitoring so that it is readily differentiated from ad hoc and reactive monitoring; and the forging of partnerships between researchers, policy-makers and resource managers to accommodate differences between policy-relevant and research-relevant questions and differences in conceptual models of ecosystem function, structure and management.


Subject(s)
Conservation of Natural Resources , Environmental Monitoring/methods , Research Design , Asteraceae/physiology , Biodiversity , Ecosystem , Environmental Policy , Eucalyptus/physiology , Fires , Models, Biological , Models, Theoretical , New South Wales , Trees/physiology , Victoria
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