irrigation rule Articles

  • Discovering Reservoir Operating Rules by a Rough Set Approach

    An integrated Rough Set approach is proposed and implemented to discover the historical operating rules of a Sicilian irrigation purpose reservoir. Operating rules are derived by expressing monthly releases from the reservoir as functions of stored volume, inflowand release during a 35-years period. This is accomplished through the Rough Set approach as implemented in the Rose package and the use ...


    By Springer

  • Institutional response to external disturbances in spate irrigation systems of Punjab, Pakistan

    Social ecological systems (SESs) - spate irrigation system in our case - operate under an environment of stress due to several external and contextual factors. Spate irrigation systems are more complex due to uncertain flows and can exhibit unexpected changes due to novel shocks. Therefore, actions directed at enhancing robustness to a particular set of disturbances can trigger changes in ...


    By Inderscience Publishers

  • Irrigation water governance in practice: the case of the Canale Emiliano Romagnolo district, Italy

    Irrigation is an essential element of agricultural production whose absence would create great economic hardship in many regions of the global South. Yet irrigated agriculture uses 70% of global fresh water withdrawals, putting major pressure on global water resources. Whilst much research has focused on technological solutions to improve irrigation efficiency, irrigation water governance ...


    By IWA Publishing

  • A critical comparison of using a probabilistic weather generator versus a change factor approach; irrigation reservoir planning under climate change

    In the UK, there is a growing interest in constructing on-farm irrigation reservoirs, however deciding the optimum reservoir capacity is not simple. There are two distinct approaches to generating the future daily weather datasets needed to calculate future irrigation need. The change factor approach perturbs the observed record using monthly change factors derived from downscaled climate ...


    By IWA Publishing

  • Water rights, investments and meanings: conflict and change in a traditional irrigation system in northern Morocco

    This paper starts by discussing the relationships between water rights, investment and issues of legitimacy and social relationships in traditional (farmer-created and farmer-managed) irrigated systems. External interventions to modify or "improve" these systems create "stakes" at different levels, i.e. opportunities for a change in the balances of power and wealth among the various stakeholders. ...


    By Inderscience Publishers

  • A distributed hydrological model in the Heihe River basin and its potential for estimating the required irrigation water

    A Grid-based Integrated Surface–Groundwater Model (GISMOD) was developed to estimate the required irrigation water using a control-site method. The entire catchment is divided into multiple grid cells of equal size, and several grid cells can be chosen as the control sites by users in this model. The grid cells from the upper stream of each control site, which have a land-use type of farmland, ...


    By IWA Publishing

  • Common pool resources and communal control: empirical evidence from Himachal Pradesh, India

    The Sirmour district, Himachal Pradesh, India, lies in the western Himalayan range. Mixed-farming is the main occupation in the mid-hills and basically consists of agriculture, livestock and forest produces. Hence, communal forests (mushtarka), common grazing lands (ghasnies) and gravity-flow irrigation systems (kuhl) were found to be the three major common pool resources in the villages of ...


    By Inderscience Publishers

  • State Fertilizer Officials Focus on Compost

    For two years, the U.S. Composting Council’s (USCC) marketing committee has been meeting with the American Association of Plant Food Control Officials (AAPFCO) to discuss how the two organizations could work together to create a uniform compost bill to be given to each state legislature to consider adopting into law. AAPFCO is an organization of fertilizer control officials from each state in the ...


    By BioCycle Magazine

  • The copenhagen conference on food security

    For the 193 national delegations gathering in Copenhagen for the U.N. Climate Change Conference in December, the reasons for concern about climate change vary widely. For delegations from low-lying island countries, the principal concern is rising sea level. For countries in southern Europe, climate change means less rainfall and more drought. For countries of East Asia and the Caribbean, more ...


    By Earth Policy Institute

  • Ordinances To Amend Soils Boost Compost Demand

    Municipalities everywhere are realizing that some of the environmental issues they are grappling with locally may be mitigated by healthier soils. In the late 1990s, when Puget Sound Chinook salmon was listed as threatened, Washington State officials scrambled to find ways to improve water quality in the Puget Sound and protect spawning streams. They identified a number of methods to reduce ...


    By BioCycle Magazine

  • California company closes the composting loop

    BEFORE we made our first ton of compost, we had already talked to farmers to determine what they needed in a soil amendment,” says Roger Van Der Wende, Vice President, Supermarket Division, Community Recycling & Resource Recovery, Inc. (Community) in Sun Valley, California. Considering the fastidious navigation the company has done to advance in a previously uncharted realm of resource ...


    By BioCycle Magazine

  • Could food shortages bring down civilization?

    One of the toughest things for people to do is to anticipate sudden change. Typically we project the future by extrapolating from trends in the past. Much of the time this approach works well. But sometimes it fails spectacularly, and people are simply blindsided by events such as today’s economic crisis. For most of us, the idea that civilization itself could disintegrate probably seems ...


    By Earth Policy Institute

  • A Whole Lot of Turf

    You can see it on the faces of the folks who drive slowly by, their necks straining first forward, then sideways and finally back. It is a look of puzzlement and awe, the type of reaction normally reserved for some sort of alien sighting, and rarely produced by merely gazing at a parking lot. But this is no ordinary parking lot - no pavement wasteland of dirty tar. The Westfarms Mall in ...


    By Invisible Structures, Inc.

  • Can the World Feed China?

    By Lester R. Brown Overnight, China has become a leading world grain importer, set to buy a staggering 22 million tons in the 2013–14 trade year, according to the latest U.S. Department of Agriculture projections. As recently as 2006—just eight years ago—China had a grain surplus and was exporting 10 million tons. What caused this dramatic shift? It wasn’t until 20 years ...


    By Earth Policy Institute

  • When population growth and resource availability collide

    As land and water become scarce, competition for these vital resources intensifies within societies, particularly between the wealthy and those who are poor and dispossessed. The shrinkage of life-supporting resources per person that comes with population growth is threatening to drop the living standards of millions of people below the survival level, leading to potentially unmanageable social ...


    By Earth Policy Institute

  • Sindh on–farm water management project environmental monitoring and avaluation

    Sindh On - Farm Water Management Project was introduced in Sindh province for improving and lining of 4,000 watercourses, with 60% within the three established Area Water Boards (AWBs) and 40% in other irrigated area of Sindh. And also improving and rehabilitating of 100 distributaries and 25 branch canals in three established AWBs. In addition of this, another related improving work of ...


  • Compost science journal of advocacy and foresight

    SEVERAL months ago, I started on a journey through the pages of Compost Science, beginning with the Spring, 1960 inaugural issue. I was confident that I could whip through the articles and news items in the several hundred issues of the magazine between 1960 and 2009, and be prepared to write this article for BioCycle’s 50th Anniversary Commemorative Edition. Granted, there were interruptions, ...


    By BioCycle Magazine

  • Full Planet, Empty Plates: Chapter 2. The Ecology of Population Growth

    Throughout most of human existence, population growth has been so slow as to be imperceptible within a single generation. Reaching a global population of 1 billion in 1804 required the entire time since modern humans appeared on the scene. To add the second billion, it took until 1927, just over a century. Thirty-three years later, in 1960, world population reached 3 billion. Then the pace sped ...


    By Earth Policy Institute

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you