摘要
利用辽宁省葫芦岛地区1959～2005年的温度、降水资料，计算出当地不同农时阶段的4种旱涝指标，并根据历史实际旱涝的记载，对4种指标进行了对比分析，结果表明：应用I。指标能反映当地旱涝状况；葫芦岛地区春播期干旱频率最高，达77％。针对各农时阶段的干旱发生规律，提出了抗旱增产的若干建议。
Using the temperature and precipitation data of Huludao area in Liaoning province during 1959 -2005, the paper calculated 4 kinds of dry waterlogging indexes in different farming seasons in Huludao, and compared the accuracy of these indexes according to the historical actual dry waterlogging records. The results indicated that IK index could reflect the local dry waterlogging status; the arid frequency at spring sowing stage in Huludao area reached 77%. At the end of the article some suggestions on drought - fighting for yield - increasing were raised based on the arid rule in different farming seasons in Huludao area.
出处
《江西农业学报》
CAS
2010年第1期78-80,88,共4页
Acta Agriculturae Jiangxi
关键词
干旱
旱涝指标
干旱规律
葫芦岛
Drought
Index of dry and waterlogging
Arid rule
Huludao
