The main business is the investment, development, construction, operation and management of expressway. It is also a large enterprise under the provincial management which combines the real estate industry, the physical distribution and transportation industry, the advertising industry and the import-...
soil and water retention rate, forest stand growth (per unit area), the proportion of national investment and the annual carbon sequestration have important impact on the sustainability, with a weight of 39.0% in all the indicators. We also analyzed the factors hindering the sustainable development...