Comprehensive Benefits Evaluation of Desert Highway Sand Control Engineering Based on Matter-element Extension Model with Variable Weight
Journal Title: Bulletin of Soil and Water Conservation - Year 2023, Vol 43, Issue 6
Abstract
[Objective] The comprehensive benefits of desert highway sand control engineering were evaluated in order to provide a scientific reference for research to evaluate sand control engineering of highways in wind-blown sand areas, and for subsequent work with respect to operation and maintenance. [Methods] The sand control engineering of desert section of the Wuhai-Maqin Highway was taking as a case study, based on an analysis of the influencing factors of the comprehensive benefits of desert highway sand control projects, a comprehensive benefits evaluation indicator system for highway sand control engineering was constructed from three aspects: engineering benefits, economic benefits, and environmental benefits. A matter-element extension model with variable weight was constructed. Fixed weights were then corrected using variable-weighting theory to reflect the effect of fluctuations in indicator values on indicator weights. The indicators that had a significant impact on the comprehensive benefits were also identified through sensitivity analysis. Finally, the model was applied to sand control engineering in the desert section of the Wuhai-Maqin highway. [Results] The comprehensive benefits of sand control engineering in the desert section of the Wuhai-Maqin highway were in the “relatively good” benefit level, but they strongly trended towards the “medium” benefit level. Compared with the traditional fixed-weight method, the benefits were more in line with engineering reality. Among the many indicators, the protective effect, breakage degree, construction quality, and effects of vegetation environment had the most significant impacts on the evaluation results. [Conclusion] To further improve the comprehensive benefit level of sand control projects in the desert section of the Wuhai-Maqin highway, the changing trend of these indicators should be focused on in the later stages of operation and maintenance, and maintenance work should be targeted to ensure maximum comprehensive benefits.
Authors and Affiliations
Liangying Li, Lele Lü, Wenhua Yin, Zhizhong Tao, Qi Li, Zhenqiang Wang
Keywords
Related Articles
- EP ID EP762757
- DOI 10.13961/j.cnki.stbctb.20231115.001
- Views 23
- Downloads 0
Effects of Forest and Grass Restoration Types on Aggregate Stability and Infiltration Characteristics of Loess
[Objective] The differences in aggregate stability and infiltration characteristics of loess under different forest and grass vegetation restoration types were compared in order to provide a theoretical basis for the opt...
Spatio-temporal Distribution and Influencing Factors of Multi-Functional Coupling Coordination Degree of Cultivated Land in Zuoyoujiang Old Revolutionary Base Area, Guangxi Zhuang Autonomous Region During 2005—2020
[Objective] The spatial distribution characteristics of agricultural production, social security, and ecological security of cultivated land in the Zuoyoujiang old revolutionary base area of Guangxi Zhuang Autonomous Reg...
Effects of Different Micro Rainwater Harvesting Measures on Safflower Growth
[Objective] The cultivation of safflower with micro rainwater harvesting technology on the hillslopes of the temperate desert grassland in Yili Valley was evaluated in order to provide technical support for dryland culti...
Response of Urban River Water Quality to Spatial Land Use Change in a Riparian Zone Under Different Drainage Systems
[Objective] The objective of this study was to determine how the response relationship between urban riparian land use and water quality changes due to different drainage systems and riparian buffers in order to provide...
Mechanical Properties of Medicago Sativa and Euphorbia Hypericifolia Root-Soil Complex
[Objective] The effects of soil moisture content and root area ratio on the soil consolidation effect of Medicago sativa and Euphorbia hypericifolia root systems and the interaction mechanism of root-soil were studied in...