摘要
依据模糊数学理论 ,采用模糊综合评判方法 ,从降雨“适量”、“适时”和“有效程度”3个指标出发 ,就杨凌区降水资源对农作物生长发育适应性做了评价分析 ,并提出降雨对作物生长的适宜度模型。通过实地调查与计算分析 ,该模型较好地反映了杨凌区主要作物对该区降雨特征的适宜能力 ,同时也较好地反映了本区降雨资源的地域特征 。
With fuzzy mathematic theory and fuzzy comprehensive judge method, the adaptability of rainfall resources to crop growth in Yangling area is analyzed in this paper. A fuzzy model with three judging indices of rainfall amount, raining date, and rainfall availability is developed to judge the rainfall adaptability. Comparing the comprehensive judging results to practical production shows that the fuzzy model is suitable to evaluate not only the crop adaptability to rainfall characteristics, but also the regional character of rainfall resource, which set a theoretic base for decision making of rational crop arrangement in this region.
出处
《灌溉排水》
CSCD
北大核心
2002年第1期22-25,共4页
Irrigation and Drainage
基金
国家节水灌溉杨凌工程技术研究组建项目 (95 980 3 )
渠灌类型区农业高效用水项目 (990 2 10 10 2 )
陕西省攻关项目 (2 0 0 0 K0 4J9)
关键词
降雨
模糊分析
农作物
生长适宜性
rainfall
fuzzy analysis
crop growth adaptability
