| 宁南旱区抗旱应变种植制度决策系统研究 |
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| 引用本文： | 王龙昌,王立祥,胡建宏,万素梅.宁南旱区抗旱应变种植制度决策系统研究[J].农业工程学报,2002,18(5):235-240. |
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| 作者姓名： | 王龙昌 王立祥 胡建宏 万素梅 |
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| 作者单位： | 1. 南京农业大学农学院,南京,210031;西北农林科技大学干旱半干旱地区研究中心,杨凌,712100
2. 西北农林科技大学干旱半干旱地区研究中心,杨凌,712100 |
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| 基金项目： | the Ninth Five- Year Plan Science and Technology Key Project(96-004 -04 -07) ,National "863" Program(2001 AA245041 ) |
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| 摘 要： | 基于宁夏回族自治区南部旱作农区干旱气候特征和作物种群干旱适应性,借助农业系统工程原理和方法进行优化设计,组建了不同生态类型地区的抗旱应变种植制度决策系统。在综合考虑各种干旱发生频率及其对作物产量影响程度的基础上,种植制度优化模式包括了随机型和确定型两种决策方案。系统分析和生产验证表明,优化方案可产生显著的经济和生态效益
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| 关 键 词： | 种植制度 抗旱 应变 决策系统 旱作农区 |
| 收稿时间： | 2002/7/12 0:00:00 |
Decision System of Drought-Resistant Flexible Cropping in Dry-Farming Areas of South Ningxia Hui Autonomous Region |
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| Wang Longchang,Wang Lixiang,Hu Jianhong and Wan Sumei.Decision System of Drought-Resistant Flexible Cropping in Dry-Farming Areas of South Ningxia Hui Autonomous Region[J].Transactions of the Chinese Society of Agricultural Engineering,2002,18(5):235-240. |
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| Authors: | Wang Longchang Wang Lixiang Hu Jianhong and Wan Sumei |
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| Abstract: | Based on climatic features and ecological adaptability of different crops to drought stress, the optimal cropping systems were designed for the dry farming areas of south Ningxia Hui Autonomous Region with the aid of principles and methods of systematic engineering. As a result, the decision systems of flexible cropping were determined for different ecological zones. In line with considerations of the occurrence frequency of various droughts and their effects on crop yield, the optimized decision systems are composed of stochastic type and deterministic type. Overall analysis indicates that the optimized scenarios may bring remarkable economic and ecological benefits. |
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| Keywords: | cropping system drought resistant flexible decision system dry farming |
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