论文部分内容阅读
陕西,曾是“山林川谷美,天材之利多”的富庶之地,西周是黄土高原的森林覆盖率高达53%。 然而,长期以来,自然、历史以及经济、社会等方面因素的综合影响,使得陕西省北部的生态环境已变得相当脆弱,地形破碎、沟壑纵横、值被覆盖低、水土流失严重,每年向黄河输入泥沙8亿吨。 由铜川市到华夏始祖黄帝陵的铜黄公路,穿越的正是这一黄土丘陵“重灾区”。公路建设和环境保护成为不容回避的两大主题。铜黄公路建设者不负重任,唱响了“再造秀美山
Shaanxi Province was once the affluent place of “Shanlinchuangu Beauty and Lidu of Longevity Materials”. In the Western Zhou Dynasty, the forest coverage in the Loess Plateau was as high as 53%. However, for a long time, the comprehensive impact of natural, historical, economic and social factors has made the ecological environment in the northern part of Shaanxi Province quite vulnerable. The terrain is fragmented and the ravines are ravaged. The value is low and soil erosion is serious. Enter 800 million tons of sediment. From Tongchuan City to the Huaxia ancestor Huangdi Mausoleum of Tong Huang Road, it is through this loess hill “hardest hit.” Road construction and environmental protection have become two unavoidable themes. Bronze road builders do not take responsibility, sang "rebuild beautiful mountain