Mine rock slope ecological restoration techniques

2016 ◽  
Vol 31 (2) ◽  
pp. 110-119 ◽  
Author(s):  
Baozhu Pan ◽  
Jianping Yuan ◽  
Xinhua Zhang ◽  
Zhaoyin Wang ◽  
Jiao Chen ◽  
...  

2011 ◽  
Vol 281 ◽  
pp. 201-209
Author(s):  
Lei Zhang ◽  
Wen Hui Zhang ◽  
Jing Zhang

This study is basing on the goal to build a "producing development, clean and tidy village" new socialist countryside. It focuses on current ecological restoration technology development and has analyzed some new sewage treatment requirements proposed by the current development of rural areas through the investigation on Taihu Lake in Jiangsu Province. First, by the research on the current pollution situation of Taihu Lake valley, management requirements of sewage in rural areas around Taihu Lake valley have been proposed. Secondly, by the study of the current development of ecological restoration technology, the feasibility and necessity of the use of sewage treatment in rural life was proposed. Finally, the ecological restoration techniques specific models and their economic benefits in landscape and their advantages are introduced, and it is proposed that for some time in the future this technology would have a very broad application prospect in China's rural areas.


2013 ◽  
Vol 37 (5) ◽  
pp. 1158-1163 ◽  
Author(s):  
Paula Cristina Benetton Vergílio ◽  
Fátima do Rosário Naschenveng Knoll ◽  
Daniela da Silva Mariano ◽  
Nágila Maiara Dinardi ◽  
Marcos Yukio Ueda ◽  
...  

The results of ecological restoration techniques can be monitored through biological indicators of soil quality such as the leaf litter arthropod fauna. This study aimed to determine the immediate effect of brushwood transposition transferred from an area of native vegetation to a disturbed area, on the leaf litter arthropod fauna in a degraded cerrado area. The arthropod fauna of four areas was compared: a degraded area with signal grass, two experimental brushwood transposition areas, with and without castor oil plants, and an area of native cerrado. In total, 7,660 individuals belonging to 23 taxa were sampled. Acari and Collembola were the most abundant taxa in all studied areas, followed by Coleoptera, Diptera, Hemiptera, Hymenoptera, and Symphyla. The brushwood transposition area without castor oil plants had the lowest abundance and dominance and the highest diversity of all areas, providing evidence of changes in the soil community. Conversely, the results showed that the presence of castor oil plants hampered early succession, negatively affecting ecological restoration in this area.


2019 ◽  
Vol 9 (17) ◽  
pp. 3618 ◽  
Author(s):  
Cuiying Zhou ◽  
Dexian Li ◽  
Zhen Liu

Soil loss can be reduced by enhancing the slip resistance of soil. Therefore, the slip resistance of borrowed soil of rock slopes is key to ecological restoration. An effective way to enhance the soil slip resistance is to improve the permeability and shear strength of the soil by using polymeric materials. Most current projects have confirmed the amount and effect of additions via repeated tests because of the lack of a quantitative characterization model. This leads to high implementation costs and inhibition of the method’s popularization and application. Therefore, based on different dosages and application processes of aqua-dispersing nano-binder (ADNB), the present study aims to examine the change rules of the particles, permeability, and shear strength after soil improvement through particle analysis, permeability, and direct shear experiments. It was found that ADNB could increase the average particle diameter, permeability coefficient, and shear strength of soil, and significantly enhanced the slip resistance of rock slope soil. On this basis, this paper establishes quantitative characterization models of the slip resistance of rock slopes, reveals the clay improvement mechanism, and proposes the optimal addition range. The study also verified the reliability of the models through an engineering application. It is proved that the appropriate amount of ADNB based on the model can enhance the slip resistance of borrowed soil as well as the ecological restoration effect of rock slopes. The model in question solves the problem of repeated tests during implementation due to the lack of a quantitative characterization model and provides theoretical guidance for the ecological restoration of rock slopes.


2020 ◽  
Author(s):  
Zhishui Liang ◽  
Zhiren Wu ◽  
Haiying Gao

<p>Due to the hard surface and the lack of necessary soil environment for vegetation growth, the rock slope protection and ecological restoration is one of the research focuses nowadays. In this paper, we proposed a flexible slope protection method based on the vegetation membrane to protect the rock slopes including river and road slope. The vegetation membrane is a kind of organic bags which is perfused by a mechanical equipment with plant seeds, soil, sand, vermiculite, rice husk, adhesive material, water retaining agent with water in a certain proportion, forming a suitable environment for vegetation growth. Then the membrane is fixed on the rock slope by the anchor bolt in different specifications and quantities according to the different slope conditions. The results show that the minimum proportions of total nitrogen, phosphoric acid, potassium in the vegetation membrane are 5%, 25% and 10%, respectively. The tension load of the anchor bolt can reach 50 ~ 100 kg in different lengths. The vegetation coverage rate on the rock slope by this method can reach more than 80% in three months and the rock slope is much more stable. Additionally, two demonstrations of different rock slopes protected by this technique are briefly described and the good control effects are obtained. It will provide a new method for protecting steep and rock slopes.</p>


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