摘要
分析了我国干旱发展趋势及对农业生产造成的影响 ,认为干旱趋势不可逆转 ,全国年均受旱面积占各种气象灾害受灾面积的 5 5 .7% ,其中旱灾成灾率 4 0 % ,占全国总成灾面积的 5 1.6 8% ,占全国粮食损失总量的 5 0 %。因此 ,应从环境、生物、技术等方面 ,建立适雨型抗逆减灾耕作制 。
The author analyzed the drought tendency and the effect on agriculture production in China, and thought that the tendency of drought couldn't change.The drought area accounted for 55.7% of the total weather disaster area annually,in which the ratio of drought disaster was 40%, accounted for51.68% of total disaster area, accounting for 50% of the total grain loss quantity. Therefore it should establish the adopting rain farming system, which could resist and decrease disaster,and do with the threaten of drought from environment,biology,technology etc.
出处
《水土保持研究》
CSCD
2003年第1期90-91,109,共3页
Research of Soil and Water Conservation
基金
国家科技攻关 (2 0 0 1BA5 0 8B18)
关键词
干旱
农业生产
气象灾害
drought
agriculture production
weathar disaster
