Phenological observations were used in conjunction with destructive sampling and measurements of plant cover to determine the aboveground seasonal dynamics, annual aboveground …
Journal: Canadian Journal Of Forest Research, Volume 29 (8): 1248-1253 (1999). DOI: 10.1139/cjfr-29-8-1248 Sites: US-SP1, US-SP2, US-SP3, US-SP4
In this paper, the one-dimensional, process-based soil CO2 model (PATCIS) described in Part 1 is parameterized and validated with field data collected in a mature slash pine plantation in Florida. The results of a model sensitivity analysis show that CO2 …
Journal: Agricultural And Forest Meteorology, Volume 95 (4): 237-256 (1999). DOI: 10.1016/s0168-1923(99)00035-0 Sites: US-SP1, US-SP2, US-SP3, US-SP4
Journal: Ecological Applications, Volume 9 (3): 936-948 (1999). DOI: 10.2307/2641340 Sites: US-SP1, US-SP2, US-SP3, US-SP4
We describe a simple method for sampling soil gas at different profile depths and analyzing CO2 concentration in the gas sample. Soil gas samples were taken on the soil surface from each chosen depth through a gas circulation system and analyzed in situ …
Journal: Soil Biology And Biochemistry, Volume 30 (14): 2107-2112 (1998). DOI: 10.1016/s0038-0717(98)00088-1 Sites: US-SP1, US-SP2
Net photosynthesis was measured under field conditions in 23-year-old slash pine (Pinus elliottii Engelm. var. elliottii) trees to determine how it was affected by fertilization and climate. There was only a small decrease in rates of net photosynthesis from late summer through winter demonstrating that appreciable …
Journal: Tree Physiology, Volume 14 (11): 1215-1227 (1994). DOI: 10.1093/treephys/14.11.1215 Sites: US-SP1
In order to develop a model of the carbon cycle for mature slash pine (Pinus elliottii) stands in north Florida, we studied seasonal variation in leaf area index (LAI, allsided), aboveground biomass increment …
Journal: Ecological Monographs, Volume 61 (1): 33-51 (1991). DOI: 10.2307/1942998 Sites: US-SP1