Three green ecologicalbarriers took shape in the city zone, the plain area and the mountain belt.
市区、平原地区、山区三道绿色生态屏障初具规模。
2
The test with the indices shows that the noise barriers have achieved satisfying noise-decreasing, ecological and social effects.
建造以后的各项指标测试表明，该声屏障取得了良好的降噪效果、生态效益和社会效益。
3
The strategies and suggestions are raised based on investigating and analyzing Shanghai' s current situation on ecological construction of city, summing up experience and lesson and finding barriers.