摘要
通过对四川盆地与长江中下游同纬度地区光、热、水等农业气候资源年总量及季节分配规律的对比分析 ,探讨了四川盆地气候资源优势及合理开发利用的途径。四川盆地热、水条件优于长江中下游地区 ,全年日照时数较少 ,但总辐射中散射辐射占 50 %— 70 % ,基本可满足作物的需求。开发冬水田、推广稻田半旱式免耕水旱轮作 ,扩大双季稻和麦 (油 )、稻、稻三熟制 。
This paper discusses the preponderances of agroclimatic resburces and ways of their rational development and utilization in Sichuan Basin. The heat and water conditions are favourable factors, except the summer drought and autumn rainy weather conditions are unfavourable for yields and qulities of summer-harvested crops. Although the annual sunshine hours are deficient in Sichuan Basin, the total radiant energy can satisfy the need of the crops on the whole because the scattered amount accounts for 60%-70% of the total radiant energy. To spread wheat and rice ridge culture of the nontillage system for comprehensive utilization in paddy fields, expand cultivated area of double-harvested rice and wheat, semilate and late rice triple-cropping system, establish the base of oranges and tangerines production in Sichuan are important ways in bringing about a steady advance in agriculture.
出处
《自然资源》
CSCD
北大核心
1997年第1期41-46,共6页
基金
国家自然科学基金资助项目
关键词
农业气候资源
开发
应用
四川盆地
Sichuan Basin
Agroclimatic resources
Resources development and utilization.
