全球智库信息集成服务系统(G2TT): Agricultural Water Demands: Preliminary Results of Silistra Case Study.

G2TT

来源类型	Monograph (IIASA Research Memorandum)
规范类型	论文
	Agricultural Water Demands: Preliminary Results of Silistra Case Study.
	Gouevsky IV; Maidment DR
发表日期	1977
出版者	IIASA, Laxenburg, Austria: RM-77-044
出版年	1977
语种	英语
摘要	Preliminary results of the Silistra Water for Irrigation Model (SWIM) for determining agricultural water demands in the Silistra region of Bulgaria are presented. For various areas of irrigated and non-irrigated land, and various volumes of water supply, SWIM uses linear programming to select the optimal combination of crop areas and production inputs so as to maximize annual net benefits from crop production in excess of target production quantities of each crop. Both normal and dry weather conditions are examined. The region's import-export balance is investigated for areas of irrigated land between 10,000 and 50,000 hectares, and it is shown that total costs of crop production are minimized when the region is just self-sufficient in crop production. By means of demand curves it is demonstrated that the marginal values of land and water for irrigation are greater than their unit costs of development so that it is optimal to develop irrigation to the maximum area considered by the model.
主题	Resources and Environment Area (REN)
URL	http://pure.iiasa.ac.at/id/eprint/771/
来源智库	International Institute for Applied Systems Analysis (Austria)
资源类型	智库出版物
条目标识符	http://119.78.100.153/handle/2XGU8XDN/121350
推荐引用方式 GB/T 7714	Gouevsky IV,Maidment DR. Agricultural Water Demands: Preliminary Results of Silistra Case Study.. 1977.

条目包含的文件
文件名称/大小	资源类型	版本类型	开放类型	使用许可
RM-77-044.pdf（1725KB）	智库出版物		限制开放	CC BY-NC-SA	浏览