摘要
以河北南部平原北纬38°沿线的10个县为研究区域,在采用灰色预测模型预测研究区域内主要大田作物,小麦、玉米、大豆、油料、棉花、蔬菜等的单产基础上,计算不同地区不同作物单位面积所产生的生态系统服务功能价值;然后选取生态服务功能价值、单位面积耗水量和生产成本作为目标矩阵,采用多目标灰色局势决策模型,对该区域农作物空间布局的方法进行探讨。
The gray-forecasting model is used to study the major crops, i.e. wheat, maize, soybean, oil crops, cotton, and vegetables, in ten counties located in the plain of southern Hebei province along 38° line, and thus the values of the ecological services of the crops are calculated; and then with the target matrix formed by the values as well as the water consumption and production cost per unit area, the gray-forecasting model of condition decision is adopted to study the methodology to decide the spatial allocations of the major crops in the concerned areas. Meantime, the suitable areas for planting different crops are illustrated and will function as the scientific basis for the structural adjustment of crop production in the concerned areas.
出处
《干旱地区农业研究》
CSCD
北大核心
2005年第1期149-156,共8页
Agricultural Research in the Arid Areas
基金
国家"863"项目(2003AA131051)
中国科学院知识创新工程重要方向项目(KZCX2-SW-317-03-01)
