基于PSR和RS的黑龙江省农业节水区划空间格局研究

Agricultural Water-saving Zoning in Heilongjiang Province Based on PSR and Rough Set

农业节水区划能够促进区域水资源高效利用,是缓解农业用水短缺的有效方法之一。黑龙江省是重要的粮食产区,农业比重大、农业用水量多,水资源短缺风险会严重影响到粮食安全。根据黑龙江省的自然地理、气候水文、社会经济以及农业结构等方面,利用PSR模型构建农业节水区划指标体系,基于粗糙集理论(RS)结合ArcGIS空间可视功能将黑龙江省划分为4个农业节水分区,并对其空间格局进行研究。结果表明,哈尔滨市、齐齐哈尔市、佳木斯市和绥化市应优先发展节水农业;鸡西、双鸭山和黑河地区可适度发展节水农业;牡丹江市、大庆市和鹤岗市可鼓励开展节水农业;七台河市、伊春市和大兴安岭地区现阶段不适宜开展节水农业。通过对黑龙江省农业节水区划特征分析,并结合不同区域的自然资源和社会经济状况得出相应对策以及建议,以期促进农业长期稳定发展。

Agricultural watersaving zoning can promote regional water resources utilization,is one of the effective ways to alleviate water shortage in agriculture. The present situation of the shortage of water resources in Heilongjiang Province,agricultural water consumption is big,has carried on the agricultural water-saving zoning in the region. Based on the natural geography,climate,hydrology,Heilongjiang Province social economy and agricultural structure,construction of agricultural watersaving zoning index system,the PSR model used based on the rough set theory is combined with ArcGIS space visual function can be divided into four agricultural water-saving zoning,Heilongjiang Province,and to study its spatial pattern. The results show that Harbin,Qiqihar,Kiamusze and Suihua give priorities to developing watersaving agriculture,Jixi,Shuangyashan,and Heihe region can moderately develop water-saving agriculture. Mudanjiang,Daqing and Hegang can be encouraged to develop water-saving agriculture. Qitaihe,Yichun and the Da Hinggan Ling Prefecture at present is not suitable for water-saving agriculture. This research analyzes the characteristics of the Heilongjiang agricultural water-saving zoning,and combining the natural,social and economic conditions in different areas of the corresponding countermeasure and the suggestion to promote long-term stable development of agriculture.