scholarly journals MCDM Farm System Analysis for Public Management of Irrigated Agriculture

Author(s):  
José A. Gómez-Limón ◽  
Julio Berbel ◽  
Manuel Arriaza



Author(s):  
O. I. Zhovtonog ◽  
V. V. Polishchuk ◽  
L. A. Filipenko ◽  
A. F. Saliuk ◽  
Ya. O. Butenko ◽  
...  

Introduction. The current challenges in water and agriculture management in Ukraine wield major influence on the development of reclamation science and practice. These challenges and the realities of irrigated farming require a revision of traditional decision-making methods and criteria to ensure resource-efficient irrigation management. Analytical and experimental studies were conducted to evaluate existing irrigation practices, develop a vision for its development over the next 20-30 years, and evaluate the prospects for the use of certain innovative products that can be implemented for irrigation management under existing economic conditions and in the future. The purpose of the research was to improve the methods of operational irrigation management and support the adoption of appropriate strategic decisions to achieve resource efficiency in irrigated agriculture. The following tasks were solved: to investigate the temporal and spatial variability of the natural and economic conditions of irrigation use; to determine the basic directions of models and algorithms improvement for operational irrigation planning taking into account the spatial and temporal variability of natural and economic conditions of real production; to evaluate perspective directions of development of irrigation planning methods to ensure resource efficiency of management in the current agricultural practice. Methods and methodologies. The research was conducted during 2012-2019 at the farms of Kherson and Zaporizhzhya regions. Testing and pilot implementation of the operational irrigation planning information system “GIS Polyv” has been carried out. The studies were carried out on 306 fields, the total area of which was 9266.09 ha, the main crops were soybean, sunflower, winter wheat, alfalfa and winter rape. Research methods included on-site observations, modelling, remote sensing, and method of system analysis. Results and discussion. The role of on-site and space agro-monitoring for the correction of bioclimatic coefficients of crop water consumption taking into account the space-time variability of the actual biomass has been substantiated and demonstrated. For the adaptation of irrigation management to the conditions of air drought, it is proposed to use an additional criterion for making decisions on crop cooling, which is determined by the maximally permissible temperature duration at the vegetation surface above the physiologically acceptable level. It is established that under conditions of air drought, in addition to slowing the growth of biomass, physiological processes occur in the leaves and reproductive organs of plants, due to the increase in the temperature of the vegetation surface. According to studies of energy transfer processes in crops during periods of atmospheric drought, an increase in the use of a share of thermal energy for turbulent exchange has been found compared to the volumes of energy that is evaporated. The vision of the future development of methods of operational irrigation planning based on modern agricultural information platforms has been presented.  It will allow to choose a method of operational irrigation management, based on the capabilities of each farm economy and to provide "on-line" consulting for water user organizations or farm personnel.



2013 ◽  
Vol 401-403 ◽  
pp. 2280-2284
Author(s):  
Gen Yin Cheng ◽  
Yi Fei Weng ◽  
You Cheng

Firstly, this article clarifies the basic connotation of safety supervision which highlights its public management activities organized and implemented by government to safe production; Secondly, it states the guiding ideology of China's security supervision based on its relationships with people's lives and property safety, reform and opening up, economic development and social stability; Thirdly, it summarizes the strategic objectives of the safety supervision in three dimensions, subject dimension, policy dimension and element dimension, and combinatorial analysis of different dimensions.



2015 ◽  
Vol 77 ◽  
pp. 83-88 ◽  
Author(s):  
J.M. Rendel ◽  
A.D. Mackay ◽  
P. Smale

The challenge of maximising the value of an onfarm investment is dependent on two factors: first, ensuring the full potential of the investment is realised by adjusting current practices to capture the gains; and second, the challenge of isolating, quantifying and valuing the contribution that investment makes to the whole farm business. A new generation farm optimisation model (INFORM) addresses both these issues. Two distinctly different on-farm investments, planting of a forestry block and sowing a multi-year forage crop, both on a hill country sheep and beef operation, are presented to illustrate the capability the model has for first optimising the investment and then using this information to conduct a farm system capital investment investigation. The investment analysis includes consideration of the capital requirements, and also calculates the maximum amount that can be spent on each of the investments to add value to the current business. Keywords: farm system analysis, investment, NPV, optimisation, INFORM



2014 ◽  
Vol 76 ◽  
pp. 203-210
Author(s):  
R. Cichota ◽  
I. Vogeler ◽  
F.Y. Li ◽  
J. Beautrais

Abstract Farm system models are increasingly being used to assess the implications of land use and practice changes on profitability and environmental impacts. Exploring implications beyond individual farms requires the linkage of such models to land resource information, which for pastoral systems includes forage supply. The New Zealand Land Resource Inventory (LRI) and associated Land Use Capability (LUC) database includes estimates of the potential stock carrying capacity across the country, which can be used to derive annual, but not seasonal, patterns of pasture growth. The Agricultural Production Systems Simulator (APSIM) was used, with generic soil profiles based on descriptions of LUC classes, to generate pasture growth curves (PGCs) in three regions of the country. The simulated pasture yields were similar to the estimates in the LRI spatial database, and varied with LUC Class within and across regions. The simulated PGCs also agreed well with measured data. The approach can be used to obtain spatially discrete estimates of seasonal pasture growth patterns across New Zealand, enabling investigation of land use and management changes at regional scales. Key words: APSIM modelling, pasture growth curve (PGC), year to year variability, farm system analysis



Author(s):  
Olga Zhovtonog ◽  
Vitalii Polishchuk ◽  
Kateryna Chorna

The article presents the results of system analysis of the problems in irrigated agriculture and irrigation restoration in Ukraine. The results of classification of water and land use conditions within the irrigation systems are given in this paper. The methodological approaches to the development of integrated plans for consolidation of water and land resources have been elaborated. Based on the surveys and questionnaires in the studied regions, 5 groups of land fragmentation problems were identified, which are outlined in this study and illustrated on some examples with using maps. The following types of conditions of water use were distinguished: lease of land plots by one large farm or agroholding within the area of one or more water distribution channels of large irrigation systems; the using of lands of intra-farm irrigation systems, which typically belong to the territories of individual village councils and are served by several water intake structures, and a large number of medium and small tenants; the using by several tenants of an area serviced by one water intake structure or one pumping station; fragmentation of land use and land ownership conditions within a single field; the presence of land plots with different leases terms within the individual fields, used by one agricultural enterprise. According to the types of land use conditions, three options for integrated land consolidation plans for irrigation systems were proposed. In order to develop integrated land consolidation plans and to restore irrigation, a complex analysis of land use maps and maps of the projected irrigation area will be needed. Therfore, it is necessary to establish a dialogue with stakeholders, namely with all farms, farmers and individual landowners on drawing up the most economically and environmentally optimal land consolidation plan within irrigation restoration areas. When drawing up such a plan, it is necessary to carry out an expert evaluation of the different scenarios of irrigation restoration, taking into account the composition of crops, probable techniques and methods of irrigation. Once the consolidation plan has been agreed, it is important to have a permanent land users association in place to attract and invest in irrigation restoration and to operate the irrigation infrastructure after the restoration. The issues of creating Water User's associations (WUA) in the irrigation areas was considered; the role of associations and land consolidation in restoring the on-farm irrigation network was determined. The list of functions of Water User’s associations has been provided, the main one of which is the exploitation of on-farm irrigation systems and water distribution between water users.



2005 ◽  
Author(s):  
K. L. Calvin ◽  
Gail R. Casper ◽  
Ben-Tzion Karsh ◽  
Patricia F. Brennan ◽  
Laura J. Burke ◽  
...  


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