摘要
1989年普查,重庆市14个粮食生产区县,易旱耕地共有294.29万亩,分别占总耕地和粮食耕地面积的28.1%和28.7%;其中易旱田134.64万田,占稻田总面积的20.8%,易旱土159.64万亩,占种粮旱地总面积的42.1%.本文运用系统工程原理,对重庆地区常年性的旱灾地成因、发生规律及分布作了系统的分析,并提出了综合治理措施.
By general survey in 1989, the cropping land often hited by drought was by 196.19 Kha, it aco-unted for 28.1% and 28.7% of the total agriculture and grain cropping area espectively.In Which, the paddy was by 89.76 Kha, e.g.made up 20.8% of total area of paddy, the upland was by 106.43 Kha , e.g. made up 42.1% of total grain cropping upland. This paper dealed with the cause and regularity of formation of drought and the distribution of Which were analyzed by the systemic engineering principle and putted forwa.d a comprehensive control measure.
出处
《西南农业学报》
CSCD
1991年第2期96-99,共4页
Southwest China Journal of Agricultural Sciences
关键词
旱灾
成因
规律
重庆市
Drought, Cause and regularity of formation, Comprehensive control, Chongqing
