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Irrigation Dictionary : Table of Contents (members login required)\t
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Term No.Term NameTerm Description
6800Eco‑developmentA form of planned growth that optimises the use of locally available resources within the constraints of the local environment......
6656Ecocline Gradual changes in the morphological or physiological features in organisms along an environmental gradient. .....
6734Ecological balance A state of equilibrium in a natural community, as indicated by the relative numbers of the components of the community remaining more or less constant.....
6577Ecological factor Any part or condition of the environment that influences the life of one or more organisms. .....
6578Ecological impact The total effect of an environmental change, either natural or man‑made, on the ecology of the area. .....
6747Ecological integrity Maintenance of the structure and functional attributes characteristic of a particular locale, including normal variability. .....
6579Ecological province A continuous area in which the ecological systems produced by climate, topography, biota and soil can be described as meaningfully different than othe.....
8868Ecological statusAn expression of the quality of the structure and functioning of aquatic ecosystems and how human activities influence them. .....
6748Ecological stress The result or consequent state of a physical, chemical, or social stimulus on an organism or system......
6687Ecological succession The sequence of distinctive plant and animal communities that  occurs over time within a given area. .....
6571Ecology The study of the relationships of living things to one another and to their environment. .....
6799Economic conservationThe management of natural resources or the environment, so as to sustain a regular yield of a commodity at the highest level feasible......
8933Economic cutFor practical purposes there exists within a one-bank canal section a point on the ground surface that, if the excavation is to balance the embankment.....
9214Economic depreciationThe loss in value resulting from external economic conditions affecting the character or degree of utilization......
4128Economic effectiveness of a flood management systemThe efficiency of a flood management scheme in generating economic benefits. .....
5026Economic efficiency of irrigationAt the level of a field and its individual system, the economic efficiency of irrigation is the ratio between the cost of additional production obtain.....
9099Economic feasibility, or Economic justificationA test of the proposed project to determine whether the anticipated benefits will exceed the estimated costs......
9142Economic life of a projectThe life of a project determined by the point in time at which the effect of economic and physical factors (physical depreciation, obsolescence, chang.....
8623Economic life of a systemLife of a system from the day of its operation to the day when the incremental benefit from continuing operation of the system by one more time period.....
7567Economic poisons Chemicals used to control pests and to defoliate cash crops such as cotton......
9173Economic value of unit of irrigation waterThe value of a crop raised by a unit of irrigation water, if run continuously throughout the life of the crop......
4895Economic water dutyDuty of water which results in (i) the maximum yield or maximum net profit per unit area when land is the limiting factor, (ii) the maximum yield or m.....
1116Economic yieldThe maximum rate at which water can be withdrawn from an aquifer throughout the foreseeable future without depleting the supply or altering the chemic.....
6086Economical haul distanceAn arbitrary distance when any piece of equipment and haul material operate most efficiently or profitably......
6576Ecoregions Geographical regions that have broad similarities with respect to soil, relief and dominant vegetation. .....
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