Single-point rainwater collecting device and multiple-point measuring system of throughfall inside forest

Abstract

The invention relates to a single-point rainwater collecting device and a multiple-point measuring system of throughfall inside a forest. The multiple-point measuring system of the throughfall inside the forest comprises a plurality of single-point rainwater collecting devices, a plurality of sets of collecting pipes, a plurality of collecting pipe hack levers, a plurality of rubber pipes and a rainwater collecting box, wherein the number of the single-point rainwater collecting devices is more than and equal to 30; each set of collecting pipes include a plurality of collecting branch pipes formed by connecting connection pipes; the number of the rubber pipes is the same as the number of the collecting pipes, the first end of each rubber pipe is respectively connected with the first ends of one set of collecting pipes, and the second end of each rubber pipe is connected with the rainwater collecting box; the collecting branch pipes composing each set of collecting pipes are fixed on collecting pipe brackets or the collecting pipe hack levers of the single-point rainwater collecting devices, wherein the collecting branch pipes respectively provided with sleeve pipes are connected with hopper openings of the single-point rainwater collecting devices through the sleeve pipes; cylinder fixing rings of the single-point rainwater collecting devices are arranged on support rods; rainwater collecting cylinders are fixedly connected with the cylinder fixing rings through cylinder gaskets; the hopper openings are arranged on the lower ends of the rainwater collecting cylinders and communicated with inside of the rainwater collecting cylinders; and the collecting pipe brackets are arranged on the support rods and positioned on the lower ends of the hopper openings. The invention is used for measuring the throughfall inside the forest and has the advantages of easy manufacture, flexible usage, convenience for measurement and accurate measurement.

Description

technical field [0001] The invention relates to a single-point rain collection device and a multi-point forest penetrating rainfall measurement system, belonging to the technical field of forest rainfall measurement. Background technique [0002] Rainfall penetration in forest is one of the main research contents of forest hydrology research, and it is the main index to determine canopy interception. At present, the most common and direct method for measuring through-rainfall in forests is to arrange rain gauges or rain collection troughs under forests for observation. However, due to the uneven distribution of canopy in general forests, in order to improve the measurement accuracy of throughrain, it is necessary to ensure a certain rainfall area. In this way, if a rain gauge is used for observation, a large number of rain gauges need to be deployed, which is not only complicated to arrange, but also time-consuming and laborious to measure. Although the rain-collecting trou...

AI Technical Summary

Problems solved by technology

However, due to the uneven distribution of forest canopy in general forests, in order to improve the measurement accuracy of through-rainfall, a certain rain-receiving area must be ensured.

In this way, if a rain gauge is used for observation, a large number of rain gauges need to be deployed, which is not only complicated to arrange, but also time-consuming and laborious to measure. Although the rain-collecting trough has a large area for receiving rain, its volume is relatively large, and it is inconvenient to transport and install.

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