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| fixed length control field |
028470000a22005650004500 |
| 003 - IDENTIFICACIÓN DEL NÚMERO DE CONTROL |
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| control field |
CR-TuBCO |
| 005 - FECHA Y HORA DE LA ÚLTIMA TRANSACCIÓN |
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| control field |
20220802062621.0 |
| 007 - CAMPO FIJO DE DESCRIPCIÓN FÍSICA |
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| fixed length control field |
ta |
| 008 - CÓDIGOS DE INFORMACIÓN DE LONGITUD FIJA |
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| fixed length control field |
210628t 1989 ||||| |||| 00| 0 eng d |
| 040 ## - FUENTE DE CATALOGACIÓN |
|---|
| Original cataloging agency |
CR-TuBCO |
| Transcribing agency |
CR-TuBCO |
| Language of cataloging |
Español |
| 041 0# - CÓDIGO DE LENGUA |
|---|
| Language code of text/sound track or separate title |
eng |
| 100 1# - PUNTO DE ACCESO PRINCIPAL -- NOMBRE DE PERSONA |
|---|
| 9 (RLIN) |
95324 |
| Personal name |
Montagnini, F. |
| 100 1# - PUNTO DE ACCESO PRINCIPAL -- NOMBRE DE PERSONA |
|---|
| 9 (RLIN) |
52112 |
| Personal name |
Buschbacher, R. |
| 245 10 - MENCIÓN DE TÍTULO |
|---|
| Title |
Nitrification rates in two undisturbed tropical rain forests and three slash-and-burn sites of the Venezuela Amazon |
| 260 ## - PUBLICACIÓN, DISTRIBUCIÓN, ETC. (PIE DE IMPRENTA) |
|---|
| Place of publication, distribution, etc |
Ithaka, (EUA): |
| Name of publisher, distributor, etc |
Association for Tropical Biology and Conservation, |
| Date of publication, distribution, etc |
1989 |
| 270 ## - DIRECCIÓN |
|---|
| Address |
San José, C.R. |
| 300 ## - DESCRIPCIÓN FÍSICA |
|---|
| Extent |
6 páginas: |
| Other physical details |
5 tablas |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE |
|---|
| Bibliography, etc |
Incluye referencias bibliográficas en las páginas 13-14 |
| 520 ## - NOTA DE SUMARIO, ETC. |
|---|
| Summary, etc |
Nitrification was measured during the rainy season in two undisturbed tropical rain forests and three slash-and-burn sites in the Amazon region of southwestern Venezuela. Nitrification was higher in the soils of the slash-and-burn sites than in the undisturbed forests. Rates of nitrate production were 14.9 mg/kg/30 days in a forest on an Oxisol, 3.5 mg/kg/30 days in a forest on Ultisol, 23.2 mg/kg/30 days in a 1.5-yr-old slash-and-burn agricultural site on an Oxisol, 12.9 mg/kg/30 days in a 0.5-yr-old slash-and-burn agricultural site on Ultisol, and 12.1 mg/kg/30 days in a 3.0-yr-old pasture on Ultisol. In the undisturbed forests, rates of nitrate production in the root mat averaged 93.5 mg/kg/30 days on Oxisols and 11.2 mg/kg/30 days on Ultisols. Nitrification rates closely followed total nitrogen mineralization rates. Ammonium availability appears to regulate nitrification in both the undisturbed forests and in the slash-and-burn sites. Rates of nitrification in the undisturbed forests in this Amazon site on poor soils were lower than in other tropical forests on more nutrient rich soils. |
| 650 14 - PUNTO DE ACCESO ADICIONAL DE MATERIA -- TÉRMINO DE MATERIA |
|---|
| 9 (RLIN) |
156028 |
| Topical term or geographic name as entry element |
NITRATOS |
| 650 14 - PUNTO DE ACCESO ADICIONAL DE MATERIA -- TÉRMINO DE MATERIA |
|---|
| 9 (RLIN) |
138258 |
| Topical term or geographic name as entry element |
BOSQUE HUMEDO |
| 650 14 - PUNTO DE ACCESO ADICIONAL DE MATERIA -- TÉRMINO DE MATERIA |
|---|
| 9 (RLIN) |
143131 |
| Topical term or geographic name as entry element |
CULTIVO MIGRATORIO |
| 650 14 - PUNTO DE ACCESO ADICIONAL DE MATERIA -- TÉRMINO DE MATERIA |
|---|
| 9 (RLIN) |
138303 |
| Topical term or geographic name as entry element |
BOSQUE VIRGEN |
| 650 14 - PUNTO DE ACCESO ADICIONAL DE MATERIA -- TÉRMINO DE MATERIA |
|---|
| 9 (RLIN) |
168984 |
| Topical term or geographic name as entry element |
ZONA TROPICAL |
| 650 14 - PUNTO DE ACCESO ADICIONAL DE MATERIA -- TÉRMINO DE MATERIA |
|---|
| 9 (RLIN) |
135570 |
| Topical term or geographic name as entry element |
AMAZONIA |
| 650 14 - PUNTO DE ACCESO ADICIONAL DE MATERIA -- TÉRMINO DE MATERIA |
|---|
| 9 (RLIN) |
168187 |
| Topical term or geographic name as entry element |
VENEZUELA (REPUBLICA BOLIVARIANA DE) |
| 691 ## - CAMPO LOCAL DE ENCABEZAMIENTO DE MATERIA -- NOMBRE GEOGRÁFICO |
|---|
| 9 (RLIN) |
328591 |
| Geographic name |
NITRATES |
| 691 ## - CAMPO LOCAL DE ENCABEZAMIENTO DE MATERIA -- NOMBRE GEOGRÁFICO |
|---|
| 9 (RLIN) |
335109 |
| Geographic name |
RAIN FORESTS |
| 691 ## - CAMPO LOCAL DE ENCABEZAMIENTO DE MATERIA -- NOMBRE GEOGRÁFICO |
|---|
| 9 (RLIN) |
338214 |
| Geographic name |
SHIFTING CULTIVATION |
| 691 ## - CAMPO LOCAL DE ENCABEZAMIENTO DE MATERIA -- NOMBRE GEOGRÁFICO |
|---|
| 9 (RLIN) |
342849 |
| Geographic name |
VIRGIN FORESTS |
| 691 ## - CAMPO LOCAL DE ENCABEZAMIENTO DE MATERIA -- NOMBRE GEOGRÁFICO |
|---|
| 9 (RLIN) |
167489 |
| Geographic name |
TROPICAL ZONES |
| 691 ## - CAMPO LOCAL DE ENCABEZAMIENTO DE MATERIA -- NOMBRE GEOGRÁFICO |
|---|
| Geographic name |
AMAZONIA |
| 9 (RLIN) |
346536 |
| 691 ## - CAMPO LOCAL DE ENCABEZAMIENTO DE MATERIA -- NOMBRE GEOGRÁFICO |
|---|
| Geographic name |
VENEZUELA (BOLIVARIAN REPUBLIC OF) |
| General subdivision |
Venezuela |
| 773 0# - HOST ITEM ENTRY |
|---|
| Title |
Biotropica (EUA) |
| Relationship information |
Volumen 21, número 1, páginas 9-14 |
| Place, publisher, and date of publication |
1989 |
| 856 40 - LOCALIZACIÓN Y ACCESO ELECTRÓNICOS |
|---|
| Uniform Resource Identifier |
<a href="https://doi.org/10.2307/2388435">https://doi.org/10.2307/2388435</a> |
| Electronic format type |
pdf |
| Link text |
eng |
| 904 ## - LOCAL DATA ELEMENT D, LDD (RLIN) |
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| Local data |
BCO |
| 904 ## - LOCAL DATA ELEMENT D, LDD (RLIN) |
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| Local data |
acarvajal |
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) |
|---|
| Local data |
C |
| 906 ## - LOCAL DATA ELEMENT F, LDF (RLIN) |
|---|
| Fecha de modificación |
20111123 |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) |
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| Local data |
000005187 |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) |
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| Local data |
000035654 |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) |
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| Local data |
000007038 |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) |
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| Local data |
000028112 |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) |
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| Local data |
000007979 |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) |
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| Local data |
000032372 |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) |
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| Local data |
000008186 |
| 908 ## - PUT COMMAND PARAMETER (RLIN) |
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| Local data |
J |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| koha item type |
Documento digital |
| Source of classification or shelving scheme |
|
