Terrace type garden terrain for rainwater utilization and shaping method of terrace type garden terrain
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A platform and garden technology, applied in the field of platform-style garden terrain and its shaping
Pending Publication Date: 2020-11-03
SHANGHAI INST OF TECH
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[0003] In order to overcome the deficiencies in the prior art, the present invention provides a platform-style garden terrain for rainwater utilization and its shaping method, which can effectively alleviate the problems of
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Embodiment 1
[0048] Such asfigure 1 and 2 As shown, the present invention discloses a platform-style garden terrain for rainwater utilization, which is suitable for various large and small green spaces in cities, green spaces in residential areas, public green spaces, urban parks and riverside landscapes. in:
[0049] The first part is the upper part of the large trees, and the rainfall runoff flows through the ecological belt system. In this ecosystem, weeping willow, oleander, metasequoia and other trees and shrubs with good adsorption capacity, ground cover plants, etc. are planted, through the substrate (such as peat soil, Pastoral soil or self-prepared nutrient soil) filtration, peat purification, biological absorption to reduce the chemical composition of pollutants in rainfall runoff (such as crude oil, SS, COD, TN, TP, NH3-N and heavy metals and other pollutants), so that the sewage of chemical resources into biological resources;
[0050] The second part is the middle-level medi...
Embodiment 2
[0063] The present invention additionally discloses a method for shaping terraced garden topography for rainwater utilization, which includes the following steps:
[0064] Step 1: The site is divided into four parts according to the micro-topographic highlands, among which:
[0065] The first part is the upper tree part, which reduces the chemical composition of pollutants in rainfall runoff through matrix filtration, peat purification and biological absorption, so as to convert chemical resources in sewage into biological resources;
[0066] The second part is the medium-sized tree part;
[0067] The third part is the lower shrub / herbaceous plant part. By setting a slope of 2%-4%, the rainfall and the upper layer of rainfall runoff are temporarily stored, so as to achieve partial infiltration, thereby replenishing groundwater, and at the same time reabsorbing and reducing the rainfall in the runoff. Pollutants;
[0068] The fourth part is the aquatic plant part, for the fin...
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Abstract
The invention discloses a terrace type garden terrain for rainwater utilization and a shaping method of the terrace type garden terrain, and is suitable for greenbelts of various sizes in cities, greenbelts of residential areas, public greenbelts, urban parks and coastal landscapes. The places are divided into four parts according to micro-landform highlands, wherein the first part is an upper-layer megaphanecophyte part, chemical components of pollutants in rainfall runoff are reduced through matrix filtration, peat purification and biological absorption, so that chemical resources in sewageare converted into biological resources; the second part is a middle-layer medium-sized arbor part; the third part is a lower-layer arbor/herbaceous plant part, wherein rainfall and rainfall runoff onthe upper layer are temporarily stored by setting the gradient of 2%-4%, partial infiltration is achieved, therefore, underground water is supplied, and besides, the pollutants in the rainfall runoffare absorbed and reduced again; the fourth part is an aquatic plant part for final pollutant adsorption and purification; and the height difference of the layers is controlled to be 50-80 cm, and thelayers are separated by a gabion being about 30-50 cm in width so as to block rainfall runoff in a short time.
Description
technical field [0001] The invention relates to the field of ecological landscape environmental engineering, in particular to a terraced garden topography for rainwater utilization and a shaping method thereof. Background technique [0002] As the city continues to expand, the original green spaces, lakes, farmland, etc. are gradually replaced by buildings, impermeable ground, and squares. Human activities alter the structure and function of urban environments. This affects the interception, infiltration and evaporation of rainwater and rainwater runoff, making the runoff process develop in an extreme direction, exacerbating natural disasters in the region, and making water pollution and personal safety issues increasingly prominent. Urban rainwater runoff has increased, and the problem of waterlogging caused by rainwater runoff pollution and instantaneous rainfall has become increasingly prominent. During the rainy season, serious waterlogging accidents will occur in vari...
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Application Information
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