Fernanda Dal Bosco, Julio Cesar Refosco, Everton Vogel
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引用次数: 0
Abstract
The aim of this study is to conduct a biophysical and economic assessment of carbon stocks associated with changes in land use and cover (LULC) in the Itajaí-Açu Valley Basin (IVB). The IVB is immersed in the Atlantic rainforest, considered one of the most diverse, as well as one of the most threatened forests on the planet. The Valley is also home to important urban and industrial centres located along the riverbanks. Since its colonisation in the second half of the 19th century, the region has constantly suffered from natural disasters, such as floods and landslides. With the expected escalation in extreme weather events in the near future due to climate change, these natural disasters may increase in intensity and frequency. Maps of LULC and the InVEST program were used to quantify and value the carbon stock and sequestration for three periods. The results show that between 2000 and 2020, there was an increase in forestry (354.64%), mosaic (57.43%) and pasture (43.08%) areas in the IVB, while a decrease was observed for Natural Forest (-4.38%), non-forest natural formation (-69.56%) and agriculture (-68.69%). The carbon stock values were 259,328,452 Mg C in 2000, 265,079,768 Mg C in 2010 and 262,577,960 Mg C in 2020. The carbon sequestration in the period 2000-2010 represented an economic benefit of US$138 million. Conversely, between 2010 and 2020, there was net carbon emissions equivalent to US$60 million. Over the entire period analysed, there was a gain of US$78 million in ecosystem services related to carbon stocks. Targeted policies, such as Payment for Ecosystem Services programs, market-based incentives for carbon credits, and public investments in forest conservation and restoration, can bring economic, social, and ecological benefits, ensuring the continued provision of ecosystem services in the region.
期刊介绍:
Integrated Environmental Assessment and Management (IEAM) publishes the science underpinning environmental decision making and problem solving. Papers submitted to IEAM must link science and technical innovations to vexing regional or global environmental issues in one or more of the following core areas:
Science-informed regulation, policy, and decision making
Health and ecological risk and impact assessment
Restoration and management of damaged ecosystems
Sustaining ecosystems
Managing large-scale environmental change
Papers published in these broad fields of study are connected by an array of interdisciplinary engineering, management, and scientific themes, which collectively reflect the interconnectedness of the scientific, social, and environmental challenges facing our modern global society:
Methods for environmental quality assessment; forecasting across a number of ecosystem uses and challenges (systems-based, cost-benefit, ecosystem services, etc.); measuring or predicting ecosystem change and adaptation
Approaches that connect policy and management tools; harmonize national and international environmental regulation; merge human well-being with ecological management; develop and sustain the function of ecosystems; conceptualize, model and apply concepts of spatial and regional sustainability
Assessment and management frameworks that incorporate conservation, life cycle, restoration, and sustainability; considerations for climate-induced adaptation, change and consequences, and vulnerability
Environmental management applications using risk-based approaches; considerations for protecting and fostering biodiversity, as well as enhancement or protection of ecosystem services and resiliency.