MARC details
| 000 -LEADER |
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| fixed length control field |
02308nab a22003137a 4500 |
| 001 - CONTROL NUMBER |
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| control field |
G97104 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
MX-TxCIM |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20211006085013.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
121211b |||p||p||||||| |z||| | |
| 024 8# - OTHER STANDARD IDENTIFIER |
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| Standard number or code |
https://doi.org/10.1016/S0168-1923(00)00166-0 |
| 040 ## - CATALOGING SOURCE |
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| Original cataloging agency |
MX-TxCIM |
| 041 0# - LANGUAGE CODE |
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| Language code of text/sound track or separate title |
En |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Alexandrov, V.A. |
| 245 00 - TITLE STATEMENT |
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| Title |
The impact of climate variability and change on crop yield in Bulgaria |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) |
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| Date of publication, distribution, etc. |
2000 |
| 520 ## - SUMMARY, ETC. |
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| Summary, etc. |
During the recent decade, the problem of climatevariability and change, due to natural processes as well as factors of anthropogenetic origin, has come to the forefront of scientific problems. The objective of this study was to investigate climatevariability in Bulgaria during the 20th century and to determine the overall impact on agriculture. There was no significant change in the mean annual air temperature. In general, there was a decrease in total precipitation amount during the warm-half of the year, starting at the end of the 1970s. Statistical multiple regression models, describing the relationship between cropyield, precipitation, and air temperature were also developed. Several transient climatechange scenarios, using global climate model (GCM) outputs, were created. The Decision Support System for Agrotechnology Transfer (DSSAT) Version 3.5 was used to assess the influence of projected climatechange on grain yield of maize and winter wheat in Bulgaria. Under a current level of CO2 (330 ppm), the GCM scenarios projected a decrease in yield of winter wheat and especially maize, caused by a shorter crop growing season due to higher temperatures and a precipitation deficit. When the direct effects of CO2 were included in the study, all GCM scenarios resulted in an increase in winter wheat yield. Adaptation measures to mitigate the potential impact of climatechange on maize crop production in Bulgaria included possible changes in sowing date and hybrid selection. |
| 546 ## - LANGUAGE NOTE |
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| Language note |
English |
| 595 ## - COLLECTION |
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| Collection |
Reprints Collection |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Adaptation |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Climate |
| 9 (RLIN) |
1558 |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
DSSAT |
| 650 17 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Maize |
| Miscellaneous information |
AGROVOC |
| Source of heading or term |
|
| 9 (RLIN) |
1173 |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Vulnerability |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Wheat |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Hoogenboom, G., |
| Relator term |
coaut. |
| 773 0# - HOST ITEM ENTRY |
|---|
| Title |
Agricultural and Forest Meteorology |
| Related parts |
v. 104, no. 4, p. 315-327 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Koha item type |
Article |