A Two-Dimensional Runoff Reduction Method for Separation of Human Activity Effects

A technology of human activities and runoff, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of not considering the indirect impact of runoff, inconsistent formation mechanism, etc., achieve fast calculation speed, reduce calculation cost, and calculation accuracy high effect
CN103810401BActive Publication Date: 2017-02-15LANZHOU UNIVERSITY
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
LANZHOU UNIVERSITY
Publication Date
2017-02-15

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Abstract

The invention discloses a two-dimensional runoff restoration method for separating the influences of human activities. The two-dimensional runoff restoration method comprises the following steps: firstly, constructing a boundary-pansystems binary automaton model; secondly, determining input, output and internal state elements of a human activity-basin underlayer system; thirdly, calculating the influence quantity of the human activities on basin underlayer conditions; fourthly, obtaining indirect influence quantity of the human activities on the runoff; fifthly, determining input, output and internal state elements of a human activity-runoff system meeting the consistency of the underlayer conditions; sixthly, solving direct influence quantity of the human activities on the runoff on the basis of the constructed system analytic method for separating direct influences of the human activities on the runoff; seventhly, calculating natural runoff volume meeting the consistency of the basin underlayer conditions according to the calculated indirect influence quantity of the human activities on the runoff and the direct influence quantity of the human activities on the runoff. The two-dimensional runoff restoration method has the advantages of simpleness, easiness for operation, high calculation speed, high precision, and comprehensive and scientific calculation result.
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Description

technical field

[0001] The invention relates to the field of runoff reduction methods, in particular to a two-dimensional runoff reduction method for separation of human activities. Background technique

[0002] The restoration calculation of measured runoff is the first work to be done in water resources evaluation and engineering design at home and abroad at present. The purpose of restoration is to make the calculation results of river runoff basically reflect the natural conditions and make the data series consistent so that The frequency analysis was carried out by mathematical statistics method. For a long time, the work of water volume restoration has been to "restore" the natural "background" state of water resources in the basin by deducting the impact of human activities hidden in the measured hydrological elements, that is, the unity of "measurement-reduction". static mode. However, the traditional restoration method only considers the direct impact of human act...

Claims

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