论文部分内容阅读
黑龙江省幅员广阔,地形复杂,受内陆与海洋气团的交替影响,省内各地区气候差异较大。春季多大风,年降雨量300—700毫米,其中60—70%的雨量集中在6—8月,所以雨量分布不均、不稳。旱涝灾害多。因此,黑龙江省土壤水分平衡方面的任务是:前期主要是防旱,后期主要是防涝,全年随时防旱又防涝。
Heilongjiang Province has a vast territory and complex terrain. Due to the alternating influence of inland and marine air masses, the climate in different regions of the province is quite different. Spring gale, the annual rainfall of 300-700 mm, of which 60-70% of the rainfall concentrated in June-August, so the uneven distribution of rainfall, instability. Droughts and floods and more. Therefore, the tasks of soil moisture balance in Heilongjiang Province are as follows: Drought is predominated in the early stage, flood prevention is mainly in the later stage, drought prevention and flood prevention are always available throughout the year.