Countermeasures of Dry-farming and Water-saving Agriculture in Northeast Semiarid Region of China

摘要：

Northeast semi-arid region is one of the main parts of the north dry farming area,and most parts of which have less surface water resources,climate variations,long period of winter,windy spring and intensive evaporation.Annual rainfall is 250mm～500mm with large annual and interannual variability,which is mainly concentrated in summer,and the precipitation from June to September accounts for 70%～80% of the total.Drought in spring and summer often occurred,accompanying with serious soil erosions,such as wind erosion and water erosion.It is the region that is most fragile in china.From the point of sustainable development,based on the analysis of soil and water resources conditions,characteristics of the disasters and the main problems existed in dry-farming and water-saving agriculture in the northeast semiarid region,the countermeasures of dry-farming and water-saving agriculture development were proposed in the paper.

关键词： northeast semiarid region agricultural water resources dry-farming and water-saving agriculture drought soil and water erosion development countermeasures

作者: Wei Yongxia Zhang Zhongxue

作者单位: Northeast Agricultural University,Harbin,150030,China

会议类型: 国际会议

会议名称: International Conference on Effective Utilization of Agricultural Soil & Water Resources and Protection of Environment and the 4th Annual Academic Conference of Chinese Society of Agricultural Soil and Water Engineering

会议地点: 南京

会议语种:英文

页码: 74-78

在线出版日期: 2006-08-16（万方平台首次上网日期，不代表论文的发表时间）