【摘要】 地下水位定点观测和地表、地下水水质分析显示，三江平原地下水位的升降主要受水田灌溉水量制约，生长期内水位显著下降。地下水资源理论上能满足目前水田耕作的需求，但从发展趋势来看，水资源将会成为农业用水的制约因子。“旱改水”进程中造成了显著的地表水污染。针对当地现状提出了农业规划和布局应注意的问题及水资源安全保护措施。更多还原

【Abstract】 Groundwater level was measured and the quality of surface water and groundwater both were tested .The results from the study showed that a fluctuation of the groundwater level in Sanjiang Plain was mainly controlled by paddy’s irrigation. During growth period, groundwater level descended considerably. Although water is sufficient to the irrigation demands theoretically at present, water resources would be a critical restriction factor to agriculture development according to the tendency of the“ transformation from dry farmland to paddy farmland". In addition, local surface water pollution is aggregated by the drainage of paddy farmland. To deal with these problems, some suggestions are provided in agricultural plan and water safety protection.更多还原