黑龙江区域农用地自然生产潜力趋势面分析

Agricultural land use natural production potential trendency in HLJ basin

依据黑龙江省土地自然生产潜力的研究成果 ,选用趋势面分析方法 ,对黑龙江省农用地生产潜力进行数学曲面拟合 ,建立了区域内以经纬度为参数变量的耕地、林地和牧草地的生产潜力模型 ,并用图形准确地描绘了农用地生产潜力的变化趋势 。

In this paper,the trendside method was applied in the maths curve simulation of the cultivated land potential in HLJ Basin according to the investigation of the natural production potential in HLJ Basin.The model of production potential of plantation,woodland,grassplot altering with the parameter,longitude and latitude in the region was established.And the vary trend of the production potential of cultivated land was accurately described by figures.It will provide the scientific evidence for the adjustment of agricultural economic structure and continuous application of the land resouces.$$$$