黑龙江省粮食生产与三江平原湿地协调发展水平的评价

为寻求黑龙江省农作物播种面积和湿地面积两者间的合理比例,使之既能保证粮食生产,又能维持湿地的必要功能,论文首先用模糊评价方法对历年黑龙江省粮食生产效益和湿地效益分别进行了评价,在此基础上,对反映两方面和谐共存程度的协调发展水平进行了评价。评价结果显示,20世纪70年代末到80年代初这一时期的农业生产和湿地环境是比较协调的。该时期农作物播种面积为870×104hm₂,三江平原湿地面积约为195×104hm₂。此结果可以作为设定三江平原湿地恢复程度的一个参考标准。在该标准下,按高单产水平计算,黑龙江省可提供2930×104t粮食,而三江平原湿地植物和鸟类的种类数约可分别恢复到建国时水平的70%和80%。

Assessment of the Coordinated Development Level between Grain Production in Heilongjiang Province and Wetland in Sanjiang Plain

There are always contradictions between grain production and wetland protection,but the reality requires that these two aspects coexist harmoniously.In order to seek a rational proportion between the sown area of crops and wetland area in Heilongjiang Province,this paper first uses fuzzy appraisal method to evaluate the benefits of grain production in Heilongjiang Province and of the wetland protection in Sanjiang Plain in past years.On this basis,the coordinated development level reflecting the degree of harmonious coexistence of the two aspects has been assessed.The result shows that the grain production was relatively coordinated with the wetland environment from the end of the 1970s to the beginning of the 1980s.During this period,the sown area of the crops was 870×104ha and the wetland in Sanjiang Plain was 195×104ha,which can be taken as a reference standard when defining the level of wetland restoration.Under this standard,Heilongjiang Province can provide 2 930×104t of grain at high per unit area yield level and the species of plants and birds of Sanjiang Plain wetland can resume to about 70% and 80% of the level at time the PRC was founded respectively.