Interannual variation in climate-potential net primary productivity relationships in differing ecosystems of California
Conference
·
· Bulletin of the Ecological Society of America; (United States)
OSTI ID:7015985
- Stanford Univ. Carnegie Institution of Plant Biology, CA (United States)
The seasonality and interannual variation in potential net primary production (NPP) were examined in differing vegetation types in California over three years of contrasting precipitation using co-registered maps of climate, vegetation, and 1km biweekly NDVI derived from high resolution satellite AVHRR data. Differences in seasonality of the vegetation types (annual grassland, chamise chaparral, deciduous oak woodland, and evergreen oak) were clearly evident and corresponded well to patterns observed in field studies. In years and locations having high precipitation the annual peak in NDVI occurred later in all vegetation classes. The annual sum of biweekly NDVI was correlated with annual precipitation in all vegetation types, although the slopes and intercepts of the regressions differed among types. Annual grassland showed the largest increase in sumNDVI per unit increase in total precipitation and most of the variation in grassland sumNDVI was explained by variation in autumn precipitation. In general the ratio of sumNDVI to annual precipitation was dependent on the temporal distribution of precipitation with respect to the long-term average pattern. Published relationships between precipitation and NPP were used to develop equations relating annual NDVI sum to NPP.
- OSTI ID:
- 7015985
- Report Number(s):
- CONF-940894--
- Conference Information:
- Journal Name: Bulletin of the Ecological Society of America; (United States) Journal Volume: 75:2
- Country of Publication:
- United States
- Language:
- English
Similar Records
Climate controls over the net carbon uptake period and amplitude of net ecosystem production in temperate and boreal ecosystems
Gridded Global Vegetation Types
The 1990 conterminous U. S. AVHRR data set
Journal Article
·
Sun May 14 20:00:00 EDT 2017
· Agricultural and Forest Meteorology
·
OSTI ID:1418524
Gridded Global Vegetation Types
Dataset
·
Tue May 01 00:00:00 EDT 1984
·
OSTI ID:1464257
The 1990 conterminous U. S. AVHRR data set
Journal Article
·
Mon Jun 01 00:00:00 EDT 1992
· Photogrammetric Engineering and Remote Sensing; (United States)
·
OSTI ID:7160808