In-situ rainfall infiltration and runoff distribution measuring system and method

A measurement system and measurement method technology, applied in the fields of hydrology, environmental science and geology, can solve the problems of large measurement error of runoff distribution, difficult and complicated measurement process, high engineering cost, convenient and simple use and maintenance, and wide application range. , the effect of low cost

Active Publication Date: 2017-05-24
NANJING HYDRAULIC RES INST
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide an in-situ rainfall infiltration and runoff distribution measurement system and method to solve the existing problems of rainfall infiltration, runoff distribution measurement error, difficult and complicated measurement process, and high engineering cost. The measurement system was built on site in the test area, and the measurement device was installed scientifically, which realized the real measurement of infiltration and runoff distribution under natural rainfall environment, with accurate results and strong reliability

Method used

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  • In-situ rainfall infiltration and runoff distribution measuring system and method
  • In-situ rainfall infiltration and runoff distribution measuring system and method
  • In-situ rainfall infiltration and runoff distribution measuring system and method

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Embodiment 1

[0036] This embodiment provides an in-situ rainfall infiltration and runoff distribution measurement system, see Figure 1-4, the measurement system includes a rainfall measurement system, an infiltration measurement system 2 and a runoff measurement system 3 arranged in the test area. The rainfall measurement system includes a rain gauge 1 fixed in the test area by means of a bracket, and the rain gauge 1 is used to measure Rainfall and rain intensity are effectively prevented from being moved and damaged by bracket installation, wherein the installation bracket can be made of engineering plastics, plexiglass or stainless steel, and its size matches the rain gauge 1. The infiltration measurement system 2 includes moisture sensors 21 arranged at different depths of the soil by means of cross-sectional installation pipes 22. Installation holes 23 for the moisture sensors 21 are reserved on the installation pipes 22. When in use, they are divided into multiple infiltration The m...

Embodiment 2

[0040] Compared with Example 1, the in-situ rainfall infiltration and runoff distribution measurement system in this example is provided with a cover above the collecting ditch 31 and the sump 32, such as image 3 and Figure 4 As shown, the top of the collecting ditch 31 is covered with a collecting ditch cover 312, and the top of the sump 32 is covered with a sump cover 322. The setting of the cover can minimize the error of rainwater and ensure the accuracy and reliability of the measurement results.

Embodiment 3

[0042] Different from Embodiment 1, the in-situ rainfall infiltration and runoff distribution measurement system in this embodiment also includes a control system, and the control system includes a signal input terminal that is connected to the rain gauge 1, the moisture sensor 21 and the water level respectively. A collector connected to the water volume measuring device, a comprehensive processor connected to the signal output end of the collector, and a memory and a client terminal respectively connected to the signal output end of the comprehensive processor. The measurement system forms an automatic measurement by means of a control system. In the specific use of this measurement system, the collector collects the data of the rain gauge 1, the moisture sensor 21, and the water level and water volume measuring device, and transmits the data to the integrated processor, and the integrated processor transmits the data to the memory after sorting and calculating , on the one h...

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Abstract

The invention discloses an in-situ rainfall infiltration and runoff distribution measuring system and an in-situ rainfall infiltration and runoff distribution measuring method, and belongs to the technical fields of hydrology, environmental science and geology. According to the technical means, the in-situ rainfall infiltration and runoff distribution measuring system comprises a rainfall measuring system, an infiltration measuring system and a runoff measuring system which are arranged in a testing area, wherein the rainfall measuring system comprises a rain gauge which is fixed in the testing area by virtue of a bracket; the infiltration measuring system comprises water sensors which are arranged in different depth positions of soil by virtue of section mounting pipes; the runoff measuring system comprises a water collecting pool, a flow collecting ditch and a water level and water quantity measuring device; the flow collecting ditch is excavated at the periphery of the testing area and communicated with the water collecting pool; the water level and water quantity measuring device is arranged in the connection position of the flow collecting ditch and the water collecting pool. The in-situ rainfall infiltration and runoff distribution measuring system and the in-situ rainfall infiltration and runoff distribution measuring method have the following advantages: the system is convenient to carry, quick in mounting, low in manufacturing cost, convenient and simple to use and maintain, and convenient to disassemble and recover after use; the error and environment limit of a laboratory are avoided and the result is truer and more accurate; the system can be arranged on different underlying surfaces and has a wide application range.

Description

technical field [0001] The invention relates to the technical fields of hydrology, environmental science and geology, in particular to an in-situ rainfall infiltration and runoff distribution measurement system and method. Background technique [0002] Precipitation is an important manifestation of climate characteristics and an important hydrological and climatic element. Infiltration and runoff characteristics are important factors affecting soil water balance and ecosystem water cycle, and are an important part of ecosystem hydrology research. , the formation and evolution of the ecological environment and agricultural production play a decisive role. Hydrological processes such as rainfall, infiltration, and runoff are accompanied by changes in the natural environment and material migration, involving hydrology, environmental science, agriculture, and forestry. Accurately obtain the ratio of rainfall to infiltration, runoff, and The process is the basis for studying the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N13/04G01N33/24G01D21/02
CPCG01D21/02G01N13/04G01N33/24G01N33/246
Inventor 王小军张建云陈凤王国庆田晓庆贺瑞敏金君良刘艳丽刘翠善鲍振鑫张旭王炳轩
Owner NANJING HYDRAULIC RES INST
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