Method for observing preferential flows in arid and semi-arid alpine regions
A preferential flow and semi-arid technology, applied in the field of forest hydrological process research, to achieve the effect of compensating for dry season flow, developing and rationally utilizing water resources
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[0045] Observation method of priority flow in arid and semi-arid alpine areas:
[0046] 1. Selection of priority flow observation site: The priority flow observation site is a closed slope separated from typical vegetation slopes, which is a rectangle. Select representative plots in the research area. According to different forest types and different forests Coverage, different soil conditions, different human activities, the area of the preferential flow observation field can be 10 meters × 10 meters, 10 meters × 20 meters, 10 meters × 40 meters, 20 meters × 40 meters and other design specifications.
[0047] 2. Requirements for the construction site of the Priority Flow Observatory:
[0048] (1) Preserve the natural conditions. There are no small ditches, potholes, roads, mounds and depressions on the surface of the sloping land.
[0049] (2) Plant cover is consistent with soil characteristics.
[0050] (3) For slopes with a slope greater than 10°, expose to the west or ...
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