Ecological restoration method for microtopography of riverbank zone abandoned sand mining field in high-altitude area

A technology of ecological restoration and riparian zone, applied in coastline protection, botanical equipment and methods, marine engineering, etc., can solve the problem of few technical methods for ecological restoration of sand fields, and achieve less difficulty in subsequent maintenance, strong pertinence, and landscape high sex effect

Inactive Publication Date: 2021-01-12
重庆市环境保护工程设计研究院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] There are very few technical methods for the ecological restoration of sand fields in alpine regions,

Method used

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  • Ecological restoration method for microtopography of riverbank zone abandoned sand mining field in high-altitude area
  • Ecological restoration method for microtopography of riverbank zone abandoned sand mining field in high-altitude area
  • Ecological restoration method for microtopography of riverbank zone abandoned sand mining field in high-altitude area

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Embodiment 1: as Figure 1 to Figure 5 As shown, an ecological restoration method for the micro-topography of the abandoned sand mining field in the riparian zone of high altitude area, including the following steps:

[0032] S1. Build bank revetments along the river: build bank revetments with slopes on both sides of the river, and set gabion foot guards at the slope foot of each bank revetment to improve the stability of the bank revetment structure;

[0033] S2. Newly built ecological wetlands: On the sand field riverbed between the revetment and the river bank soil foundation, sand and gravel materials are used to fill multiple small islands, and the whole is covered with soil, and green plants are planted on the small islands, and emergent plants are planted in low-lying places;

[0034] S3. Wetland ecological water replenishment: use the effluent of the sewage station as the ecological water replenishment of the wetland; specifically, the water is led to the upstr...

Embodiment 2

[0047] Embodiment 2: as Figure 6 As shown, a method for ecological restoration of the micro-topography of the abandoned sand mining field in the river bank zone in high altitude areas is different from Example 1 in that: the riverbed near the left bank revetment backwater slope is made into a wetland, and the low-lying part of the wetland is planted with spruces water plants.

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Abstract

The invention provides an ecological restoration method for microtopography of a riverbank zone abandoned sand mining field in a high altitude area. The ecological restoration method comprises the following steps that S1, revetments are built along a riverway, specifically, the revetments with gradients are built on the two sides of the riverway correspondingly, and gabion protection feet are arranged at the slope toe of each revetment; S2, an ecological wetland is newly built, specifically, a plurality of islands are piled up on a sand field riverbed between the revetments and a riverbank soil foundation through sand gravels, and integrally earthed, green plants are planted on the islands, and emergent aquatic plants are planted at low-lying positions; S3, the wetland is subjected to ecological water supplementation, specifically, effluent water of a sewage station is used as ecological supplemented water of the wetland; and S4, a water ecosystem is maintained, specifically, in the wetland maintenance period, damaged nursery-grown plants are timely updated and rejuvenated, and the plants planted in the wetland are maintained according to ecological characteristics of the plants. According to the restoration method, the ecological microtopography is constructed for the abandoned sand field in an alpine area, so that the effects of purifying water, preventing water and soil lossand beautifying the riverbank landscape are achieved, pertinence is high, stability is good, landscape performance is high, and subsequent maintenance difficulty is low.

Description

technical field [0001] The invention belongs to the technical field of ecological restoration, and in particular relates to an ecological restoration method for the microtopography of an abandoned sand mining site in a river bank zone in a high-altitude area. Background technique [0002] There are very few technical methods for ecological restoration of sand fields in alpine regions, especially those that combine ecological restoration of sand fields with river bank slope protection construction. [0003] This application proposes an ecological restoration method for the micro-topography of abandoned sand pits in riparian areas in high altitude areas, aiming to solve the ecological restoration of barren beaches, sand pits and other bare land left after sand mining in abandoned sand mining fields in riparian areas in high-altitude areas. The concept of urban construction is to carry out low-impact development and transformation of bare land through a series of ecological rev...

Claims

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Application Information

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IPC IPC(8): E02B3/12E02B3/00E03B3/36A01G22/00
CPCA01G22/00E02B3/00E02B3/12E03B3/36Y02A10/30Y02A40/22
Inventor 马正利宣鑫鹏龚紫薇
Owner 重庆市环境保护工程设计研究院有限公司
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