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嫩江地区位于黑龙江省松嫩平原的西北部,本区的齐市、龙江、太来、杜蒙自治县、甘南、富裕、林甸等七个市县为黑龙江省西部风砂干旱的典型代表地区。每年春季风大少雨,常遭干旱;加之土壤有机质少,结构差,透水性强,保水能力差,因而,加重了春旱的危害程度。给农作物的保苗和幼苗生育威胁很大,致使单产不高总产不稳。因此,研究分析干旱的成因和抗旱保翦的技术,对促进全区实现稳产高产有着重要意义。
Nenjiang is located in the northwest of Songnen Plain in Heilongjiang Province. Seven cities and counties in Qixian, Longjiang, Tailai, Dumont Autonomous County, Gannan, Wealthy and Lindian in this area are typical representatives of the wind-sand droughts in western Heilongjiang Province . Every year, the spring monsoon rains and suffers from drought. In addition, the soil has little organic matter, poor structure, strong water permeability and poor water retention capacity, thus aggravating the damage degree of spring drought. To the crop seedlings and seedlings threatened a great deal, resulting in low yields of unsteady produce. Therefore, studying and analyzing the causes of drought and the technology of drought prevention and safeguarding are of great significance to the promotion of stable and high yield in the whole region.