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Taking five types of slopes as test objects this paper measured their soil microbial biomass and soil enzyme activity. The results showed that variation of microbial biomass different slopes is obvious; soil enzyme activity is also a significant difference between different slopes. There were extremely significant positive correlations between soil urease activity, invertase activity, neutral phosphates...
The characteristics of soil fertility microbial biomass and respiration intensity under four typical ecological restoration slopes with seasons changes. It indicated that the soil fertility and microorganisms were in significant seasonal differences by one-way analysis of variances (ANOVA). Microbial biomass carbon and nitrogen content in August (summer), October (autumn) were higher than those in...
Taking seven types of slopes in the disturbed area of Xiangjiaba construction as test objects this paper measured their soil pH, soil nutrient and soil enzyme activity. The results showed that the soil at natural forests (NF) was acidic, while the others were weakly alkaline at different degree. Variation of soil nutrients in different slopes is obvious; soil enzyme activity is also a significant...
Based on the discussion of biological environment problems in disturbed area of hydraulic and hydropower engineering, principles and methods of landscape eco-corridor construction were proposed to restore the ecosystem structure, ecosystem service function and give better service to electric power construction. In this paper, landscape eco-corridors were designed in five types including shelterbelt...
Based on the analysis and comparison of traditional slope treatment methods on steep rocky slopes, the construction technology, properties and advantages of Vegetation-Growing Concrete Base Material Slope-Protected Technique were recommended. It was demonstrated that this technology has good benefits and application prospects for soil and water conservation, economy and ecological construction, sustainable...
As Chinese government giving more attention on environment protection, the techniques and methods on slope bioengineering protection have developed rapidly. Various kinds of techniques have been put into different regions, industries, fields, and produced positive ecological and environmental effects. However, there are certain understanding deviations of the slope bioengineering protection because...
Based on the governing equation of seepage, we investigates the influence of consolidation stress on unsaturated seepage in soil slope, considering the relationships among stress and strain, saturated permeability coefficient and soil porosity, and combining the consolidation stress and Soil-water characteristic curve, put forward a numerical method which couples the unsaturated seepage and stress...
This paper expounds the characteristics of eco-landscapes in hydropower construction region, which is compartmentalized as core disturbance zone, transitional zone and radiated zone according to the degree of construction disturbance. The importance of corridor to eco-landscapes in hydropower construction region is analyzed. It puts forward the principles, modes, steps and measures of building ecological...
Aiming at solving the difficulty in ecological treatment of high-steep slope, the paper introduces an ecological recovery technique-the concretes biotechnics slope (CBS), which is a comprehensive slope protection method combining shallow protection with greening. Firstly, the technological process and main materials of CBS are introduced. A series of physical, chemical, mechanical, and greening performance...
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