Performance based irrigation planning under water shortage     

Pushpa R. Onta  Rainer Loof  Madhab Banskota 《Irrigation and Drainage Systems》1995,9(2):143-162

A linear programming (LP) based optimization model and a simulation model are developed and applied in a typical diversion type irrigation system for land and water allocation during the dry season. Optimum cropping patterns for different management strategies are obtained by the LP model for different irrigation efficiencies and water availability scenarios. The simulation model yields the risk-related irrigation system performance measures (i.e. reliability, resiliency and vulnerability) for the management policies defined by the optimization model. The alternative strategies are evaluated in terms of all performance criteria (i.e. net economic benefit, equity and reliability) simultaneously through a trade-off analysis using a multi-criteria decision making method (compromise programming). For the case study of the Kankai irrigation system in Nepal, with equal preference to the objectives, a management strategy with equal share of water among the project subareas appears to be the most satisfactory alternative under water shortage conditions. The existing water allocation policy is not economically efficient. Deficit irrigation in Early paddy appears attractive under favorable hydrologic scenario, particularly if accompanied by measures to improve existing irrigation system efficiency.  相似文献   

社会呼唤执法为民与公平正义——从涉农案件中存在的两个法律问题浅谈关于社会主义法治理念     

石国才 《湖南农机》2007,(7):154-156

社会主义新农村建设与构建和谐社会离不开实施和弘扬社会主义法治理念。在此方面,目前司法实践中存在着严重问题。对于目前存在的此类问题,建议立法机关、执法部门在社会主义法治理念教育活动中及时解决。  相似文献   

Optimum Decision Model About Stock Equity Withdrawal of Debt-to-equity Swaps     

PENG Xiao-Bing~  Pu Yon-gjian~  ZENG Guo-ping~ 《保鲜与加工》2004,(11):116-119

The withdrawal of stock equity of debt-to-equity swap benefitto resume connatural financial resource allocationfunction of market mechanism, basedon the viewpoint of market operation. An optimum decision modelabout stock equity withdrawal is set up, and asset management corporationcan sign an agreement based on enterprise's value with enterprise's managerof the debt-to-equity swap in advance, and make optimum choice in stock equity sell or enterprise list, thus stock equity withdrawal probably is realizedefficiently.Moreover, the paper puts forward the realizing factors of the efficient withdrawal of stock equity of debt-to-equity swapand correspondingcountermeasures.  相似文献   

从分配角度探析网络资源配置中存在的公平问题     

王明慧 《农业图书情报学刊》2006,18(12):209-211

网络信息资源在配置的过程中会由于经济和观念等各种原因而出现不公平现象，文章试从分配主体和分配要素的角度入手，探析原因。并提出解决方案。  相似文献   

中小型水电站权益资本构成决策分析     

李振富  王仁超  刘明月 《中国农村水利水电》2004,(1):74-76

在企业投资中小型水电站的建设时，权益资本的构成十分重要，它是决定企业投资回报情况的重要因素，同时，也对项目的开展顺利与否有一定的影响。以企业的收益损失为研究对象，建立权益资本构成的概念模型。研究不同权益资本构成时企业收益损失情况，探讨了企业投资中小型水电站建设时的控股原则。  相似文献   

信息公平、社会效率和图书馆     

梁芳 《农业图书情报学刊》2007,19(2):70-72,75

信息公平促进社会效率，社会效率的提高有利于信息公平的实现。在当今的图书馆领域，人们对信息公平与社会效率问题日益关注。文章论述了图书馆作为搜集、整理和保存文献信息资料并向读者提供可利用的社会公益性科学、文化、教育机构，也应担当起维护信息公平，提高社会效率重任的一部分。另外，针对我国图书馆如何维护信息公平，提高社会效率提出了一些看法，观点。  相似文献   

试论城市房屋行政强制拆迁及公平补偿     

金雪娇 《林业科技情报》2010,42(1):97-99

强制拆迁在现实生活中纠纷较多的重要原因之一是没有正确处理好行政强制功能和司法强制功能的关系，对适用行政强制程序进行拆迁的权力使用过多过滥，因此常常会损害被拆迁人的利益。本文通过对行政强制拆迁法律特征的分析，提出行政强制拆迁的适用范围应当限制在公益性建设项目之内，并通过严格的条件和程序来规范，籍此来保护被拆迁人的合法权益。  相似文献   

农地流转对山区农业生产效率与公平的影响——以重庆三个区县为例   总被引：1，自引：1，他引：0  

贺新军  阎建忠  杨柳 《农业现代化研究》2019,40(4):591-600

农地流转是优化山区土地资源配置,增加农民收入的重要途径,然而农地流转是否能够提高山区农户农业生产的效率与公平仍缺乏农户案例研究。文章基于重庆市3个典型山区县的调研数据,构建OLS回归模型,分析山区农地流转在效率和公平两方面的作用,并以劳动力投入农业生产时长和劳动力平均年龄为工具变量,通过2SLS模型控制了内生性问题。结果表明:在目前山区农地流转现状下,净转入土地面积与农业生产效率存在显著的正相关关系,而与人均耕地面积呈显著的负相关关系,说明山区农地流转将耕地从人均土地充足的家庭流向人均土地稀缺的家庭,从农业生产效率低的家庭流向农业生产效率高的家庭,进而提高了山区土地配置的效率和公平。同时,本文还发现劳动力占比、牲畜数量、非农收入占比与净转入土地面积有显著的影响。基于此,提出规范山区农地流转市场;鼓励种田能手扩大经营规模;鼓励山区部分农户非农转型等政策建议。  相似文献   

对赌协议法律问题研究          下载免费PDF全文

张希  郭雨桐 《现代农业研究》2019,(7):123-124

对赌协议广泛应用于投资领域,但我国对其法律规制不足,对此可借鉴国外为对赌协 议的适用提供法律空间,改善融资环境、促进资本市场发展。  相似文献   

Perceptions of fishing access restrictions and the disparity of benefits among stakeholder communities and nations of south‐eastern Africa          下载免费PDF全文

Tim R McClanahan  Caroline A Abunge 《Fish and Fisheries》2016,17(2):417-437

Achieving high compliance with resource‐use management policies is a critical concern to achieving sustainability, particularly in poor countries. Willingness to comply may depend on the values and perceptions of benefits and legitimacy of the restrictions. Consequently, we interviewed and evaluated the perceptions of fishing restrictions among ~2100 marine fisheries stakeholders (resource users and managers) in 102 fishing villages in Kenya, Madagascar, Mozambique and Tanzania. We hypothesized that perceived benefits would decline and social inequity increase along a hypothesized gradient of increasing access restriction – ranging from minimum size of fish to fisheries closures. Managers did not recognize the hypothesized access restriction gradient, seeing most restrictions as beneficial, but with some nation‐specific distinctions. Village‐level responses of resource users varied by country, and overall perceived benefits of access restrictions increased with the wealth, education and membership in fishing organizations. In Kenya and Tanzania, some communities with views that differed greatly from managers were, in places, found near marine protected areas and they perceived more benefits accruing to the government than resource users for the strongest access restrictions. Madagascar and Mozambique fishing villages had low between‐community variability, and their responses did not reflect the hypothesized restriction gradient or strong social disparity, which may reflect limited practical experience with restrictions. These results suggest that countries with stronger central governments contained villages with more between‐community variability and perceived social disparity than weaker governments. We argue that transparent negotiations with stakeholders about the scales of costs and benefits should increase compliance with selected fisheries regulations.  相似文献