MARC details
| 000 -LEADER |
|---|
| fixed length control field |
03756nab a22006617a 4500 |
| 001 - CONTROL NUMBER |
|---|
| control field |
39649 |
| 003 - CONTROL NUMBER IDENTIFIER |
|---|
| control field |
CO-PlCIA |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
|---|
| control field |
20130510170200.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
|---|
| fixed length control field |
120504t1995 000 0seng d |
| 040 ## - CATALOGING SOURCE |
|---|
| Original cataloging agency |
CO-PlCIA |
| Transcribing agency |
CO-PlCIA |
| 041 ## - LANGUAGE CODE |
|---|
| Language code of text/sound track or separate title |
eng |
| 100 ## - MAIN ENTRY--PERSONAL NAME |
|---|
| Personal name |
Lloyd, J. |
| 9 (RLIN) |
7299 |
| 245 ## - TITLE STATEMENT |
|---|
| Title |
A simple calibrated model of Amazon rainforest productivity based on leaf biochemical properties |
| 300 ## - PHYSICAL DESCRIPTION |
|---|
| Extent |
18(10):1129-1145 |
| 520 ## - SUMMARY, ETC. |
|---|
| Summary, etc |
A simple 'big leaf' ecosystem gas exchange model was developed, using eddy covariance data collected at an undisturbed tropical rainforest in south-western Amazonia (Brazil). The model used mechanistic equations of canopy biochemistry combined with an empirical stomatal model describing responses to light, temperature and humidity. After calibration, the model was driven using hourly data from a weather station at the top of the tower at the measurement site, yielding an estimate of gross primary productivity (annual photosynthesis) in 1992/1993 of about 200 mol C m(-2) year(-1). Although incoming photon flux density emerged as the major control on photosynthesis in this forest, at a given PAR CO2 assimilation rates were higher in the mornings than in the afternoons. This was attributable to stomatal closure in the afternoon in response to increasing canopy-to-air vapour pressure differences. Although most morning gas exchange was clearly limited by the rate of electron transport, afternoon gas exchange was generally observed to be very nearly co-limited by both Rubisco activity (V-max) and electron transport rate. The sensitivity of the model to changes in nitrogen allocation showed that the modelled ratio of V-max to electron transport (J(max)) served nearly to maximize the annual carbon gain, and indeed, would have resulted in almost maximum annual carbon gain at the pre-industrial revolution atmospheric CO2 concentration of 27 Pa. Modelled gross primary productivity (GPP) was somewhat lower at 27 Pa, being about 160 mol C m(-2) year(-1). The model suggests that, in the absence of any negative feedbacks on GPP, future higher concentrations of atmospheric CO2 win continue to increase the GPP of this rainforest, up to about 230 mol C m(-2) year(-1) at 70 Pa |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Tropical rain forests |
| 9 (RLIN) |
5551 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Mathematical models |
| 9 (RLIN) |
7285 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Biochemistry |
| 9 (RLIN) |
5803 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Photosynthesis |
| 9 (RLIN) |
5535 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Stomata |
| 9 (RLIN) |
6493 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Rubisco |
| 9 (RLIN) |
7286 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Canopy |
| 9 (RLIN) |
7287 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Productivity |
| 9 (RLIN) |
3460 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Amazonia |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Brazil |
| 9 (RLIN) |
2487 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Bosque tropical húmedo |
| 9 (RLIN) |
5556 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Modelo matemático |
| 9 (RLIN) |
7288 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Bioquímica |
| 9 (RLIN) |
5804 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Fotosíntesis |
| 9 (RLIN) |
5540 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Estoma |
| 9 (RLIN) |
6495 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Rubisco |
| 9 (RLIN) |
7289 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Cubierta de copas |
| 9 (RLIN) |
7290 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Productividad |
| 9 (RLIN) |
3466 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Amazonia |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Brasil |
| 9 (RLIN) |
2503 |
| 653 ## - INDEX TERM--UNCONTROLLED |
|---|
| Uncontrolled term |
Journal articles |
| 653 ## - INDEX TERM--UNCONTROLLED |
|---|
| Uncontrolled term |
Artículos en revistas |
| 653 ## - INDEX TERM--UNCONTROLLED |
|---|
| Uncontrolled term |
Electronic documents |
| 653 ## - INDEX TERM--UNCONTROLLED |
|---|
| Uncontrolled term |
Documentos electrónicos |
| 653 ## - INDEX TERM--UNCONTROLLED |
|---|
| Uncontrolled term |
Fisiología y bioquímica de la planta |
| 653 ## - INDEX TERM--UNCONTROLLED |
|---|
| Uncontrolled term |
Métodos matemáticos y estadisticos |
| 653 ## - INDEX TERM--UNCONTROLLED |
|---|
| Uncontrolled term |
Ecología vegetal |
| 653 ## - INDEX TERM--UNCONTROLLED |
|---|
| Uncontrolled term |
Plant physiology and biochemistry |
| 653 ## - INDEX TERM--UNCONTROLLED |
|---|
| Uncontrolled term |
Mathematical and statistical methods |
| 653 ## - INDEX TERM--UNCONTROLLED |
|---|
| Uncontrolled term |
Plant ecology |
| 653 ## - INDEX TERM--UNCONTROLLED |
|---|
| Uncontrolled term |
Journal article |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Grace, J. |
| 9 (RLIN) |
7291 |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Miranda, Antônio Carlos |
| 9 (RLIN) |
7292 |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Meir, P. |
| 9 (RLIN) |
7293 |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
WONG, S.C. |
| 9 (RLIN) |
7294 |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Miranda, Heloisa S. |
| 9 (RLIN) |
7295 |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Wright, I.R. |
| 9 (RLIN) |
7296 |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Gash, J.H.C. |
| 9 (RLIN) |
7297 |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
McIntyre, J. |
| 9 (RLIN) |
7298 |
| 773 ## - HOST ITEM ENTRY |
|---|
| Title |
Plant, Cell and Environment (United Kingdom) |
| Place, publisher, and date of publication |
1995 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Source of classification or shelving scheme |
Library of Congress Classification |
| Koha item type |
Journal Article |
| 998 ## - Data Base |
|---|
| DataBase |
CATAL |