| 000 -LEADER |
|---|
| fixed length control field |
026230000a22003850004500 |
| 003 - IDENTIFICACIÓN DEL NÚMERO DE CONTROL |
|---|
| control field |
CR-TuBCO |
| 005 - FECHA Y HORA DE LA ÚLTIMA TRANSACCIÓN |
|---|
| control field |
20220308161932.0 |
| 007 - CAMPO FIJO DE DESCRIPCIÓN FÍSICA |
|---|
| fixed length control field |
ta |
| 008 - CÓDIGOS DE INFORMACIÓN DE LONGITUD FIJA |
|---|
| fixed length control field |
220308b1989 ||||| |||| 00| 0 spa d |
| 040 ## - FUENTE DE CATALOGACIÓN |
|---|
| Original cataloging agency |
CR-TuBCO |
| Transcribing agency |
CR-TuBCO |
| Language of cataloging |
spa |
| 100 1# - PUNTO DE ACCESO PRINCIPAL -- NOMBRE DE PERSONA |
|---|
| 9 (RLIN) |
51457 |
| Personal name |
BROWN, S. |
| 100 1# - PUNTO DE ACCESO PRINCIPAL -- NOMBRE DE PERSONA |
|---|
| 9 (RLIN) |
71772 |
| Personal name |
GILLESPIE, A.J.R. |
| 100 1# - PUNTO DE ACCESO PRINCIPAL -- NOMBRE DE PERSONA |
|---|
| 9 (RLIN) |
88072 |
| Personal name |
LUGO, A.E. |
| 245 10 - MENCIÓN DE TÍTULO |
|---|
| Title |
Biomass estimation methods for tropical forests with applications to forest inventory data |
| 260 ## - PUBLICACIÓN, DISTRIBUCIÓN, ETC. (PIE DE IMPRENTA) |
|---|
| Date of publication, distribution, etc |
1989 |
| 300 ## - DESCRIPCIÓN FÍSICA |
|---|
| Extent |
22 páginas |
| 520 ## - NOTA DE SUMARIO, ETC. |
|---|
| Summary, etc |
This paper contains a strategy for estimating total aboveground biomass of tropical forests. We developed regression equations to estimate aboveground biomass of individual trees as a function of diameter at breast height, total height, wood density, and Holdridge life zone (sensu Holdridge 1967). The regressions are applied to some 5,300 trees from 43 independent sample plots, and 101 stand tables from large-scale forest inventories in four countries, to estimate commercial and total aboveground biomass per unit area by forest type, and to estimate expansion factors defined as the ratio of aboveground to commercial biomass. The quadratic stand diameter (QSD, i.e., the diameter of a tree of average basal area) in a given forest stand influences the magnitude of the expansion factor. Stands of small trees have large expansion factors (up to 6.4), and as QSD increases, the expansion factor decreases to a constant value (about 1.75). For undisturbed forest sin moist, moist transition to dry, and dry life zones respectively, the expansion factors for total aboveground biomass were 1.74, 1.95, and 1.57 respectively. For undisturbed, logged, and nonproductive forest categories used by the FAO to report global commercial wood volume data, we estimated expansion factors of 1.75, 1.90, and 2.00 respectively. Applying these factors to FAO data results in a 28 to 47% increase in previous volume-derived estimates of tropical forest biomass. However, estimates of tropical forest biomass based on small destructive samples continue to be high relative to estimates based on volume data. |
| 650 14 - PUNTO DE ACCESO ADICIONAL DE MATERIA -- TÉRMINO DE MATERIA |
|---|
| 9 (RLIN) |
137963 |
| Topical term or geographic name as entry element |
BIOMASA |
| 650 14 - PUNTO DE ACCESO ADICIONAL DE MATERIA -- TÉRMINO DE MATERIA |
|---|
| 9 (RLIN) |
151958 |
| Topical term or geographic name as entry element |
INVENTARIOS FORESTALES |
| 650 14 - PUNTO DE ACCESO ADICIONAL DE MATERIA -- TÉRMINO DE MATERIA |
|---|
| 9 (RLIN) |
145091 |
| Topical term or geographic name as entry element |
ECOLOGIA VEGETAL |
| 650 14 - PUNTO DE ACCESO ADICIONAL DE MATERIA -- TÉRMINO DE MATERIA |
|---|
| 9 (RLIN) |
146866 |
| Topical term or geographic name as entry element |
ESTIMACION |
| 691 ## - CAMPO LOCAL DE ENCABEZAMIENTO DE MATERIA -- NOMBRE GEOGRÁFICO |
|---|
| 9 (RLIN) |
137969 |
| Geographic name |
BIOMASS |
| 691 ## - CAMPO LOCAL DE ENCABEZAMIENTO DE MATERIA -- NOMBRE GEOGRÁFICO |
|---|
| 9 (RLIN) |
319594 |
| Geographic name |
FOREST INVENTORIES |
| 691 ## - CAMPO LOCAL DE ENCABEZAMIENTO DE MATERIA -- NOMBRE GEOGRÁFICO |
|---|
| Geographic name |
PLANT ECOLOGY |
| 691 ## - CAMPO LOCAL DE ENCABEZAMIENTO DE MATERIA -- NOMBRE GEOGRÁFICO |
|---|
| 9 (RLIN) |
342424 |
| Geographic name |
VALUATION |
| 773 0# - HOST ITEM ENTRY |
|---|
| Title |
Forest Science (EUA) |
| Place, publisher, and date of publication |
1989 |
| Relationship information |
v.35(4) p.881-902 |
| 904 ## - LOCAL DATA ELEMENT D, LDD (RLIN) |
|---|
| Local data |
BCO |
| 904 ## - LOCAL DATA ELEMENT D, LDD (RLIN) |
|---|
| Local data |
klines |
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) |
|---|
| Local data |
C |
| 906 ## - LOCAL DATA ELEMENT F, LDF (RLIN) |
|---|
| Fecha de modificación |
20060127 |
| 908 ## - PUT COMMAND PARAMETER (RLIN) |
|---|
| Local data |
J |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| koha item type |
Analítica |
| Source of classification or shelving scheme |
|
