CLIMATE RISK IN MAIZE CROP IN THE NORTHEASTERN OF BRAZIL BASED ON CLIMATE CHANGE SCENARIOS

被引：3

作者：

da Silva, Vicente de P. R. ^{[1
]}

Campos, Joao H. B. da C.

Silva, Madson T. ^{[1
]}

机构：

[1] Univ Fed Campina Grande, CTRN, UACA, Campina Grande, PB, Brazil

来源：

ENGENHARIA AGRICOLA | 2012年 / 32卷 / 06期

关键词：

Global warming; water balance; rainfall; agricultural zoning; AIR-TEMPERATURE; IMPACT; CULTIVATION; COFFEE; YIELD;

D O I：

10.1590/S0100-69162012000600019

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

This study evaluates the impacts of climate change on the agricultural zoning of climatic risk in maize crop cultivated in the Northeastern of Brazil, based on the Intergovernmental Panel on Climate Change (IPCC) reports. The water balance model, combined with geospatial technologies, was used to identify areas of the study region where the crops could suffer yield restrictions due to climate change. The data used in the study were the time series of rainfall with at least 30 years of daily data, crop coefficients, potential evapotranspiration and duration of the crop cycle. The scenarios of the increasing of air temperature used in the simulations were of 1.5 degrees C, 3 degrees C and 5 degrees C. The sowing date of maize crop from January to March appears to be less affected by warming scenarios than the sowing in November and December or April and May.

引用

页码：1176 / 1183

页数：8

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