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Studies on Biology Protection Technique of Side Slopes of Gu-wang Superhighway in NingXia

Author: WangSiCheng
Tutor: WangNing;LanJian
School: Ningxia University
Course: Grassland
Keywords: Ancient kings highway Protection of plant Resistance Suitability Plant communities Feature Benefit
CLC: U418
Type: Master's thesis
Year: 2004
Downloads: 191
Quote: 1
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Abstract


This article of the ancient king of highway slope bio-defense technology research, to explore the application of bio-protection technology in highway slope protection and its significance. Test 2, Part 1: herb select resistance and adaptive research trials, that the ancient king of highway slope planted 10 species of herbaceous plants; Part 2 of the comparative tests, divided into 2 groups each group of three treatments: treatment A is the Melilotus offcinalia (Melilotus officinalis (L.) Desr.) tall fescue (Festuca arundinacea Schreb.) alfalfa (Medicago sativa L.) purple fescue (Festuca rubra L.); the processing B changing small crown vetch (Coronilla varia L.) smooth bromegrass (Bromus inermis Leyss.) alfalfa (Medicago sativa L.) tall fescue (Festuca arundinacea Schreb.); treatment C for more than smaller crown vetch (Coronilla varia L.) smooth bromegrass (Bromus inermis Leyss.). Group II: Treatment D for Caragana intermedia (Cragana korshinskii Kom.); Processing E Amorpha (by the Amorpha fruticosa L.); the treatment F tamarisk (Tamarix chinensis Lour.) From changes in plant community dynamics, plant community characteristics and internal structure, as well as bio-defense benefits a comparative study, the results showed that: (1) alfalfa, tall fescue, white clover, changing small crown vetch, adsurgens and falcata stress resistance is strongest; followed for smooth bromegrass and red fescue: the dust ice grass and yellow flowers and the Muxidi the stress resistance weakest. (2) alfalfa, yellow flowers and sweet clover, tall fescue, sand adsurgens and white clover strongest ability to adapt to the environment; followed changeable small crown vetch and Medicago falcata; dust ice grass, smooth bromegrass and red fescue weakest. (3) the the three shrubs environment adaptability order tamarisk Amorpha> Caragana intermedia. (4) herb processing plant community aboveground biomass accumulation showed a \Each treatment aboveground biomass (B) and time (t) of the dynamic function can be expressed by the following equation: B = B 55 / [1 ae -kt ] (5) Herbal plant treatment, plant communities, aboveground biomass distribution was a \(6) using different processing herbs slope, soil and water conservation benefits are significantly higher than the shrub revetment: Geocell - 3D mesh slope protection effective than the fish-scale pit shrub revetment. (7) herb processing, processing plant B (smooth bromegrass small crown flower alfalfa high fescue) total coverage, biomass, soil and water conservation effect, followed by treatment A (tall fescue alfalfa the Melilotus offcinalia Festuca arundinacea), while processing the worst C (awnless brome small crown flower). (8) The three processing shrubs, the best slope effect of treatment E (Amorpha), followed by the worst processing F (Hongliu) slope effect D (Caragana intermedia). (9) single-species planting shrubs, plant and does not broadcast by the slope method, plant can not be used as an effective way of highway slope biological protection. (10) herbs slope protection, improve soil physical and chemical properties, reduce soil salinity and pH and improve soil fertility. The herb three treatments have formed a stable community with the local climate, soil, and preliminary forming a virtuous circle between the climate - soil - plant \

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CLC: > Transportation > Road transport > Road works > Road maintenance and repairs
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