Device and method for detecting runoff producing positions on karst slope surface
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A slope runoff and karst technology, which is applied in the field of devices for detecting karst slope runoff positions and devices for detecting karst slope runoff positions, to achieve the effects of true and reliable test results, good sealing, corrosion resistance and anti-biting
Inactive Publication Date: 2014-02-19
INST OF SUBTROPICAL AGRI CHINESE ACAD OF SCI
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However, the karst area shows a unique discontinuity of soil cover and strong heterogeneity of the above-ground and underground structures, and the method suitable for judging the runoff position on the slope that is suitable for the continuous area of soil cover cannot be copied in this area.
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Embodiment 1
[0027] The working principle of the present invention will be further described below in conjunction with the accompanying drawings:
[0028] Such as figure 1 , figure 2 As shown, a device for detecting runoff position on karst slopes, which includes PVC pipe (DN25) 1, first three-way (DN25) 2A, second three-way (DN25) 2B (horizontal end is main pipe, vertical end is Branch pipe), first water storage pipe 3A, second water storage pipe 3B, first pipe cap (with hole) 4A, second pipe cap (with hole) 4B, first water guide pipe 5A, second water guide pipe 5B, first pipe Plug 6A, second tube plug 6B, fine gauze 7. The working principle of the present invention is: when the surface produces water, the water flow will enter the pipe through the hole drilled on the wall of the PVC pipe (DN25), and then divert to both sides, and flow into the first three-way (DN25) 2A, the second three-way ( DN25) 2B main pipe, and then stored in the first water storage pipe 3A and the second water ...
Embodiment 2
[0031] A method for detecting runoff position on a karst slope, the steps of which are:
[0032] 1. Select points on the slope. Before burying the device, first select two typical transects that are basically symmetrical on the slope (the transect goes to the vertical contour line), divide them into slope positions such as the top, shoulder, back slope, foot of the slope, and depression, and then carry out Spot on the spot. The point selection follows the following two principles: First, according to the slope length of each slope position, the nodes at equal intervals along the slope are determined as the installation points. Due to the strong heterogeneity of the karst area, it is recommended to set the interval along the slope as 10 to 15m; on this basis, by increasing the number of installation points to ensure that the selected installation points basically include typical heterogeneous niche types such as soil surface, bare rock, stone trough, and stone crevice, and fin...
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Abstract
The invention discloses a device and method for detecting runoff producing positions on a karst slope surface. The two ends of a PVC pipe are arranged in tee joints in a sleeved mode, the PVC pipe is filled with a thin gauze element, a water inlet hole is drilled in the wall of the PVC pipe, two ends of the tee joints are arranged in water storage pipes with sealed ends and pipe caps respectively in a sleeved mode, and a water guide pipe with a pipe plug at the upper end is inserted into each pipe cap and extends to the lower end of the corresponding water storage pipe. Based on slope surface point selection, the device is buried according to slope positions and types of heterogeneous ecological niches; after each rainfall, the runoff producing situation is checked, a water sample is collected, and basic water chemical indexes are measured; the runoff producing possibility of each point on the slope surface in a hydrologic year and the space-time distribution of the water chemical indexes are comprehensively analyzed, and finally judgment on the runoff producing positions on the slope surface is finished. The device for detecting the runoff producing positions on the karst slope surface is simple to manufacture, small in investment, and convenient and rapid to install, solves the problems occurring when a traditional research method is used for detecting the runoff producing positions on the karst slope surface and other areas with discontinuous earth covers, and can provide a technical means for the aspects of reasonable utilization of limited water resources, reasonable distribution of land utilization, vegetation recovery strategies and the like in the areas.
Description
technical field [0001] The invention belongs to the fields of hydrology, ecology, soil erosion and soil and water conservation, and more specifically relates to a device for detecting the runoff position on a karst slope, and also relates to a method for detecting the runoff position on a karst slope, which is suitable for teaching, scientific research and The environmental protection department conducts systematic measurement and research on slope hydrological processes, water and nutrient transport under natural and human influences. Background technique [0002] In karst areas, the surface-subsurface dual space structure is developed, the soil cover is discontinuous, and the surface heterogeneity is extremely strong. The heterogeneity of the physical structure of the karst slope will inevitably lead to the complexity of the slope hydrological process. In addition to the traditional surface runoff, soil flow, and underground runoff, the slope hydrological process also has ...
Claims
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Patent Type & Authority Applications(China)
IPC IPC(8): G09B25/06
Inventor 付智勇陈洪松王克林王发
Owner INST OF SUBTROPICAL AGRI CHINESE ACAD OF SCI
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