摘要
在云南干旱区设置原状土沟（T1）、坡地夯实（T2）、夯实后盖石棉瓦（T3）和夯实后盖塑料薄膜（T4）4种集雨导流模式,以坡地玉米为试材,研究不同导流模式对降雨的集水效率、水分利用率和玉米产量的影响。结果表明,4种导流模式的集水效率、水分利用率和玉米产量的大小顺序均表现为T4〉T3〉T2〉T1。总体来看,四种导流模式的集水效率在41.7%-58.7%之间;相比于T1,T2、T3、T4的水分利用率分别提高了34.9%、53.5%和92.5%,产量分别提高了1 767、1 981.5和2 385 kg/hm^2。
This study focus on efficiency of different rainwater diversion methods in arid area of Yunnan Province,we set four patterns which include undisturbed soil ditch（ T1）,slope compaction（ T2）,asbestos sheet covering after compaction（ T3） and plastic film covering after compaction（ T4）. Maize around sloping upland were used as experimental materials,efficiency of rainfall collection,efficiency of water application and yield of maize were measured under four rainwater diversion methods. The results showed that the four diversion patterns present same trend with efficiency of rainfall collection,efficiency of water application and yield of maize： T4 〉T3〉 T2〉 T1. Overall,rainwater collection efficiency of the four diversion patterns were between 41. 7%-58. 7%; compared to T1,efficiency of water application under T2,T3,T4 were increased by 34. 9%,53. 5% and 92. 5%,yield of maize were increased by 1 767,1 981. 5 kg / ha and 2 385 kg / hm^2.
出处
《安徽农业科学》
CAS
2015年第34期191-192,195,共3页
Journal of Anhui Agricultural Sciences
基金
农业部嵩明农业环境科学观测实验站项目
国家科技支撑计划(2012BAD40B02)
关键词
云南干旱区
玉米
导流方式
集水效率
水分利用效率
Arid area of Yunnan
Maize
Diversion pattern
Collection efficiency
Water application efficiency
