Arrangement method of shrubs in riparian buffer zones for reducing nitrogen and phosphorus in urban water sources in alpine regions

Abstract

The invention discloses a riverbank buffer zone shrub configuration for reducing nitrogen and phosphorus in urban water source areas in high cold regions. Riverbank land areas, which are 10m above the maximum water level of the river in the slopes on both sides of the main stream and primary and secondary tributaries in the water catchment area, are provided with riverbank buffer zone vegetation. The vegetation comprises one or more of Salix cheilophila, Caragana opulens and sea buckthorn, wherein the Salix cheilophila is arranged in the riverbank buffer zone of the 0-2-degree slope; the Caragana opulens is arranged in the riverbank buffer zone of the 2-5-degree slope; and the sea buckthorn is arranged in the riverbank buffer zone of the 5-15-degree slope. The configuration can effectively entrap nitrogen and phosphorus pollutants to improve the runoff water quality, can fully display the functions of the riverbank buffer zone on purifying the water and retaining the silt, has favorable use effect, and can satisfy the function demands for reducing overland runoff nitrogen and phosphorus pollutants of the riverbank buffer zone in urban water source areas in northwest high cold regions.

Description

technical field [0001] The invention relates to a vegetation configuration for a river bank buffer zone, in particular to a shrub configuration for a river bank buffer zone for reducing nitrogen and phosphorus in an urban water source in an alpine region. Background technique [0002] The riparian buffer zone is a vegetation-covered land area that can interact with the water environment, between the water body and the land area, and is a typical ecological transition zone with obvious edge effects. Vegetation, as the core of the riparian buffer zone ecosystem, has important ecological functions such as purifying water quality, retaining sediment, inhibiting river bank erosion, regulating river microclimate, providing habitat for organisms, and mitigating the negative impact of human factors on river ecosystems. An effective way to control non-point source pollution. The riparian buffer zones formed by different plant species and community configuration patterns are not the ...

AI Technical Summary

Problems solved by technology

However, there is still a lack of a vegetation configuration technology suitable for the riparian buffer zone in the above-mentioned areas

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