Device for measuring vertical infiltration quantity and horizontal migration quantity of water in litter layer

A technology of litter and migration, applied in the direction of measuring devices, analytical materials, instruments, etc., can solve the problems of inability to separate and measure the water movement mode in the litter layer, and inability to fully explain the movement form

Active Publication Date: 2013-05-01
BEIJING FORESTRY UNIVERSITY
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Problems solved by technology

In the past, there were mainly two methods for the research on the water movement mode in the litter layer: (1) Measure the vertical infiltration amount of water in the litter layer under the condition of natural rainfall or artificial rainfall, and calculate the interception amount by the difference between it and the rainfall , this method fails to measure the horizontal migration of water in the litter layer, and obvio

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  • Device for measuring vertical infiltration quantity and horizontal migration quantity of water in litter layer
  • Device for measuring vertical infiltration quantity and horizontal migration quantity of water in litter layer
  • Device for measuring vertical infiltration quantity and horizontal migration quantity of water in litter layer

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Embodiment Construction

[0032] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0033] The present invention proposes a measuring device for the vertical infiltration and horizontal migration of moisture in the litter layer, such as figure 1 As shown, the device includes a steel ring, a drum, a funnel, a collector and an electronic balance, wherein:

[0034] The steel ring is nested in the barrel, and the bottom of the steel ring is laid with a nylon net for containing litter;

[0035] The funnel is located inside the barrel and below the steel ring, and the funnel is connected to the collecting tank through a circular tube for vertically dropping the litter layer from the steel ring. The infiltrated moisture is transferred to the collecting tank;

[0036] The collecting tank is located outside the drum for receiving the moisture transferred from the funnel;

[0037] The electroni...

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Abstract

The invention discloses a separation and measurement device for vertical infiltration quantity and horizontal migration quantity of water contained in a litter layer after rainfall is intercepted by the litter layer. The device comprises a steel ring, a drum, a funnel, a water collection tank and electronic analytical balances, wherein the steel ring is nested in the drums, and a nylon mesh is paved at the bottom of the drum for holding litter; the funnel is located inside the drum and below the steel ring, is connected to the flow collection tank through a round tube, and is used for transferring vertical infiltration water in the litter layer to the water collection tank; the water collection tank is located outside the drum, and used for receiving water transferred from the funnel; and the electronic analytical balances are respectively located at the lower parts of the drum and the water collection tank, and used for measuring the vertical infiltration quantity and the horizontal migration quantity of water in the litter layer. The device provided by the invention can separate and measure the vertical infiltration quantity and the horizontal migration quantity of water in the litter layer under the condition of natural rainfall or artificial rainfall, so as to achieve quantitative research on water movement in the litter layer.

Description

technical field [0001] The invention relates to the technical field of precipitation measurement, in particular to a device for separating and measuring the vertical infiltration amount and horizontal migration amount of moisture in a layer after rainfall is intercepted by litter. Background technique [0002] A large number of existing studies have shown that the litter layer is an important part of the hydrological cycle process and plays an important role in the exchange of water and energy between the understory and the surface. The litter layer covers the surface, which can absorb the impact energy of rainfall to reduce soil erosion, protect soil moisture and soil temperature, and can also form an effective material and energy exchange with the surface through decay and decomposition to improve soil structure. Its hydrological effect And water conservation function is very prominent. In the past, there were mainly two methods for the research on the water movement mode...

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Application Information

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IPC IPC(8): G01N5/00
Inventor 牛健植李想谢宝元余新晓赵玉丽武晓丽张英虎韩旖旎
Owner BEIJING FORESTRY UNIVERSITY
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