摘要
中国西北干旱、半干旱地区的面积约占该地区国土面积的83%。降水稀少,植被稀疏,地表蒸发量大,农业水分亏缺严重,旱灾频繁,为其主要干旱气候特征。本区农业发展从战略上应立足于:合理利用水资源,提高水资源利用率,挖掘农业增产潜力,抗旱减灾。以采取农业工程措施,搞好农田基本建设,兴修水利工程,植树造林,种草养畜,培育耐旱高产作物品种,推行旱作技术,应用气象信息进行农业措施决策等为主要对策。
The arid and semiarid area in Northwest China covers an area of 83% of total inthat region.The major features of dry climate are less rainfall,less vegetation,great sur-face evaporation,serious short of agriculturally-used water,and frequent drought da-mages.Agricultural development in this region should be based on rational utilization ofwater resources,improvement of water use efficiency,exporation of agricultural yield in-creasing potentials,fighting against droughts and reducing disasters.Agrucltural engi-neering measures including better basic farmland construction,building waterconservancy works,planting trees,planting grasses for raising animals,breeding droughttolerate and high-yielding crop varieties,practising dryland farmning techniques and ap-plying weather information to carry out agricultural decisions,etc.should be adopted.
出处
《干旱地区农业研究》
CSCD
北大核心
1992年第1期1-8,共8页
Agricultural Research in the Arid Areas
关键词
干旱
气候
农业
dry climate
agricultural counter-measures
west China
