Rainwater harvesting in watershed and multitier horticulture model are also discussed. Global and local climate change affects much on the current water. Watershed management and water harvesting as strategic. The efficient way for subsurface water storage, soil moisture conservation or ground water recharge technologies should be adopted properly under water resource. Water resource management plays a vital role in sustainable development of watershed which is possible only through the implementation of various water harvesting technique. Sc evs sies nerul college of arts, science and commerce. The book on rain water harvesting is an attempt by iricen to propagate the concept of rain water harvesting which can be effectively implemented in our office and residential establishments. Rain water harvesting involves collecting water that falls on roof of house during. Conservation practices are based on designing and building, semicircular, earthen, water harvesting. Reclaimed water is a hybrid program with elements from numerous federal and state regulations. In a first case study, the effect of a jessr water harvesting system in amrich, oued oum zessar watershed south tunisia is described and evaluated for its impact on soil and water conservation. Watershed management and rain water harvesting has emerged as a new paradigm for planning, development and management of natural resources. It is hoped that this will serve as a helpful guide to the field engineers. Rainwater harvesting, though an oldage practice, is emerging as a new avenue in water resource development and management due to the recent efforts of both government and nongovernmental.
Learn how to create a sustainable backyard oasis with rainwater harvesting. The history of rain water harvesting in asia can be traced to the 9 th or 10 th century, where the smallscale collection of rain water from roofs and simple dam construction were in use in the. The outcomes are prevention of soil runoff, regeneration of natural vegetation, rain water harvesting and recharging of the ground water table. Rainwater harvesting and watershed management mafiadoc. These include water resource management, water supplies, urban and watershed planning, wastewater management, wetlands, groundwater and surface water protection, and public health and safety. These stored waters are used for various purposes such as gardening, irrigation etc.
The above soil and water conservation management and water harvesting programme should be implemented in an integrated manner on a catchmentwatershed basis figure 1. From the study conducted on rain water harvesting and watershed management of dudhganga basin, the following findings have emerged. Any beneficial reduction in water loss, use and waste of resources avoiding any damage to water quality improving water. Watershed management and water harvesting as strategic tools for groundwater augmentation v. Jun 27, 2009 a study carried out by the uks environment agency found that installing full watersaving equipment and employing water management practices could cut 50% off annual water bills. Rainwater harvesting is a type of harvest in which the rain drops are collected and stored for the future use, rather than allowing them to run off. Soil conservation and water harvesting to improve community.
In a first case study, the effect of a jessr water harvesting. Exsitu watershed management practices reduce peak discharge in order to reclaim gully formation and harvest substantial amount of runo, which increases groundwater recharge and irrigation potential in watersheds. Interpretation of satellite imageries land use and land cover. Approximately, 71 per cent of the earths surface is covered with it but fresh water constitutes only about 3 per cent of the total water. Rain barrels and other water conservation tools mass. There are two main techniques of rain water harvestings. Watershed management pdf notes wm pdf notes smartzworld. Wet watershed management guide water harvesting and soil. Soil conservation and water harvesting rain foundation.
Water harvesting techniques for sustainable water resources management in catchments area of extreme climate condition. This guide discusses the process and type of interventions that come with wet watershed management or wet water harvesting and soil conservation in plain high rainfall areas. Watershed management must consider the social, economic and institutional factors operating within and outside the watershed. Major areas watershed management rain water harvesting. Rainwater harvesting reduces consumers utility bills. To estimate the potential of roof and surface rain water harvesting. Pdf effectiveness of insitu water conservation through rainwater. The main aim of sustainable watershed development is to achieve soil and water conservation within the catchment.
In fact, a very small proportion of fresh water is effectively available for human use. Water stored in check dam built across the stream channel exsitu management. Just 14 inch of rainfall on a typical roof will fill a rain barrel. Various methods of rainwater harvesting are described in this section. Technologies for water harvesting and soil moisture. In the western united states, conservation continues to serve as a primary driver for rainwater harvesting as the region struggles to meet the water demands of its. Water conservation is the practice of using water efficiently to reduce unnecessary water usage. Rainwater harvesting and watershed management pranay krishnan m.
Methods of rainwater harvesting components, transport and. The book on rain water harvesting is an attempt by iricen to propagate the concept of rain water harvesting. Water is a cyclic resource with abundant supplies on the globe. Soil and water conservation and survey department, govt. The collected rainwater may be stored, utilised in different ways or directly used for recharge. In urban area rainwater flows away as surface runoff. A study carried out by the uks environment agency found that installing full watersaving equipment and employing water management practices could cut 50% off annual water. The participation of local authorities and village communities is necessary to achieve self sufficiency and sustainability of water availability in the village. In india, in rural areas it is soil and water conservation measures taken on watershed basis to conserve and augment ground water. Concept of rain water harvesting rain water harvesting involves collecting water that falls on roof of house during. The process of saving water for future utilization is called conservation of water. Watershed management notes pdf wm notes pdf details. If you continue browsing the site, you agree to the use of cookies on this website. Rainwater harvesting, catchment harvesting, harvesting structures, soil moisture conservation, check dams, artificial recharge, farm ponds, percolation tanks.
Aug 03, 20 rainwater harvesting and watershed management 1. Rainwater harvesting and watershed management slideshare. The distribution of loans was organized by integrating a geographic information systembased land degradation priority map with the communities judgments and land tenure maps. It found, for example, that one uk hotel saved more than. Rainwater harvesting provides a water supply buffer for use in times of emergency or breakdown of the public water supply systems, particularly during natural disasters. A modest amount of rainfall can supply much or all of your outdoor watering needs a full rain barrel will water a 200 square foot garden. Rainwater harvesting rwh is a simple method by which rainfall is collected for future usage. Rainwater harvesting, though an oldage practice, is emerging as a new avenue in water resource development and management due to the recent efforts of both government and non. Ppt water conservation powerpoint presentation free to. Water harvesting techniques gather water from an area termed the catchment area and channel it to the cropping area or wherever it is required. Assessment of best practises and experience in water.
Gunter hauberdavidson, water conservation group pty ltd, sydney, australia. As a homeowner, youre probably already well aware of the financial costs of inefficient water use. Rain water harvesting, conservation and management strategies. The above soil and water conservation management and water harvesting programme should be implemented in an integrated manner on a catchment watershed basis figure 1. The collected rainwater may be stored, utilised in different ways or directly used for recharge purposes. The conservation, development and management of water are pivotal to the concept of. Under such circumstances, insitu rainwater harvesting shall be crucial. Sustainable water management is an important global action to alleviate the growing pressure on our water resources and a way to balance both socioeconomic and environmental water needs. Learn how to create a sustainable backyard oasis at wmgs sixpart hydrate phoenix project series at. Perhaps one of the most interesting aspects of rainwater harvesting is learning about the methods of capture, storage, and use of this natural resource. The storage of rain water on surface is a traditional techniques and structures used were underground tanks, ponds, check dams, weirs etc. Scarcity of water, methods of conservationrain water.
They have become aware about the different schemes of agriculture department. Functions of the structures contour bunds, contour barriers vegetative and stone, contour trenches and contour stone walls will not only prevent soil erosion but also obstruct. Common strategies include public outreach campaigns, tiered water rates charging progressively higher prices as water use increases, or restrictions on outdoor water use such as lawn watering and car washing. Rain water harvesting, conservation and management.
Approximately, 71 per cent of the earths surface is covered with it but fresh water constitutes only about 3 per cent of the total. A local nonprofit, watershed management group, teaches about rainwater harvesting with handson workshops. Keeping and using rain water on your property helps reduce pollution, erosion and improves local watershed health. These stored waters are used for various purposes such as gardening. Rain water harvesting through watershed the neutral view. Water conservation and water recycling washington state. The key activities to conserve water are as follows. The guide is based on wet watershed management, as it is timetested in the north bengal terai region of india.
Management and water harvesting as t groundwater augmentation. According to fresh water watch, water conservation is. Dec 6, 20 to improve the capacities of the watershed, it is crucial to have a watershed administration set up. This enables multicropping and the introduction of diverse agrobased activities, which help to provide sustainable livelihoods to the people residing in the watershed area. Conservation techniques conserve water within the biomass and the soil by reducing runoff and keeping the water where it falls, as much as possible. Assessment of best practises and experience in water harvesting. The availability of fresh water varies over space and. With depleting groundwater levels and fluctuating climate conditions, rwh can go a long way to help mitigate these effects. Waterharvesting video gallery rainwater harvesting for. Rain water harvesting usually involves larger cisterns or multiple barrel systems that can store enough water to help water landscapes during our long dry summers. Rainwater harvesting helps utilities reduce the summer demand peak and delay expansion of existing water treatment plants. The water and land management on watershed basis has a scientific proven base which helps in increasing productivity, along with sustainable utilization of resources. It is an integrated and interdisciplinary approach.
It means capturing rain where it falls or capturing the run off in your own. According to fresh water watch, water conservation is important because fresh clean water is a limited resource, as well as a costly one. Exsitu watershed management practices reduce peak discharge in order to reclaim gully formation and harvest substantial amount of runo, which increases groundwater recharge and. Water conservation programs involved in social solutions are typically initiated at the local level, by either municipal water utilities or regional governments. Pdf water conservation through rainwater harvesting. Rainwater harvesting is the collection and storage of rainwater for reuse onsite, rather than allowing it to run off. A guide to water efficient landscaping from tucson water.
Insitu rwh is achieved mainly by conservation tillage and has in this handbook been merged with micro catchment. Rainwater can be collected from rivers or roofs and redirected to a deep pit well, shaft, or borehole, aquifer, a reservoir with percolation, or collected from dew or fog with nets or other tools. For the purpose, rain water is collected at the roof top or in an open well and then carried down for immediate use or it is directed into the. The fundamental destination of the watershed administration is.
1596 1280 241 791 745 186 491 66 757 1450 1289 1658 1638 315 659 1148 678 1045 903 218 179 1618 61 1359 1514 1445 89 1150 1098 1155 719 722 990 1279