In:
Journal of Geophysical Research: Atmospheres, American Geophysical Union (AGU), Vol. 99, No. D1 ( 1994-01-20), p. 1303-1315
Abstract:
We examine the influence of aggregation errors on developing estimates of regional soil‐CO 2 flux from temperate forests. We find daily soil‐CO 2 fluxes to be more sensitive to changes in soil temperatures (Q 10 = 3.08) than air temperatures (Q 10 = 1.99). The direct use of mean monthly air temperatures with a daily flux model underestimates regional fluxes by approximately 4%. Temporal aggregation error varies with spatial resolution. Overall, our calibrated modeling approach reduces spatial aggregation error by 9.3% and temporal aggregation error by 15.5%. After minimizing spatial and temporal aggregation errors, mature temperate forest soils are estimated to contribute 12.9 Pg C yr −1 to the atmosphere as carbon dioxide. Georeferenced model estimates agree well with annual soil‐CO 2 fluxes measured during chamber studies in mature temperate forest stands around the globe.
Type of Medium:
Online Resource
ISSN:
0148-0227
Language:
English
Publisher:
American Geophysical Union (AGU)
Publication Date:
1994
detail.hit.zdb_id:
2033040-6
detail.hit.zdb_id:
3094104-0
detail.hit.zdb_id:
2130824-X
detail.hit.zdb_id:
2016813-5
detail.hit.zdb_id:
2016810-X
detail.hit.zdb_id:
2403298-0
detail.hit.zdb_id:
2016800-7
detail.hit.zdb_id:
161666-3
detail.hit.zdb_id:
161667-5
detail.hit.zdb_id:
2969341-X
detail.hit.zdb_id:
161665-1
detail.hit.zdb_id:
3094268-8
detail.hit.zdb_id:
710256-2
detail.hit.zdb_id:
2016804-4
detail.hit.zdb_id:
3094181-7
detail.hit.zdb_id:
3094219-6
detail.hit.zdb_id:
3094167-2
detail.hit.zdb_id:
2220777-6
detail.hit.zdb_id:
3094197-0
SSG:
16,13
Permalink