Regional carbon fluxes from land use and land cover change in Asia, 1980–2009
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Number of Parts | 23 | |
Author | 0000-0001-8814-804X (ORCID) | |
License | CC Attribution 3.0 Unported: You are free to use, adapt and copy, distribute and transmit the work or content in adapted or unchanged form for any legal purpose as long as the work is attributed to the author in the manner specified by the author or licensor. | |
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Transcript: English(auto-generated)
00:03
My name is Leonardo Kaye. I'm a second year PhD student in the Department of Ecology at Montana State University. I'm the lead author on the publication Regional Carbon Fluxes from Land Use and Land Cover Change in Asia, 1980-2009.
00:21
So this work grew out of collaboration with scientists around the world from the Asia Pacific Network trying to study the regional carbon budget of Asia. And my role in this project was to quantify the carbon fluxes from land use and land cover change in three regions of Asia.
00:44
This included carbon fluxes from deforestation, land clearing, land management, and forest regrowth. The purpose of the research article that we published was to identify a benchmark for future studies that aim to quantify carbon fluxes from land use and land cover change in Asia.
01:04
We used multiple data sets in our study. One of the benefits of our approach is to try and obtain and quantify the carbon flux estimate. We used different estimates from different approaches, including inventory or on-the -ground estimates, process-based simulation models, and a bookkeeping and accounting model.
01:25
And one of the benefits to using these different approaches for the estimates is that we can get a robust estimate and some level of confidence in the carbon fluxes from deforestation and land management and forest regrowth that would otherwise
01:43
be limited to the uncertainties associated with any one individual method. Some of the challenges in analyzing the different estimates from the different approaches included the inclusion of different component fluxes. Most data sets included carbon fluxes only from deforestation, whereas others included
02:05
carbon fluxes from deforestation and forest regrowth, which serves as a carbon sink. So comparing the multiple data sets required a unique approach to reducing uncertainty in the overall estimate and getting a better understanding.
02:22
The carbon fluxes from land use and land cover change in East Asia, for example, have declined in the past two decades, primarily from forest regrowth. In Southeast Asia, there has been an increase in carbon fluxes from land use and land cover change since 1980, but have been about equal in magnitude between 1990 and 2000.
02:44
And these carbon fluxes have been primarily from deforestation and peatland fires. In the South Asia region, the uncertainty has been reduced by pooling together the different data sets. There is a suggestion that there is a large contribution of carbon fluxes from wood harvesting activity.
03:05
One of the more interesting figures in the paper is one that shows the carbon fluxes from land use and land cover change globally and compares that to carbon fluxes from land use and land cover change in Asia. It shows the increasing contribution of carbon fluxes in Asia in the past two decades.
03:26
It shows that land use and land cover change in Asia is increasing in importance and its relative influence at global scales.