What Is a Safety Barrier?
Security barrier (barrier) refers to a general term for matters that hinder, buffer, or protect against harmful elements such as the environment, order, and safety.
Overview of Security Barriers
- Mountain ecological security barrier refers to the ecosystem structure and ecological process under certain mountain conditions are in a state of being not damaged or threatened, and a multi-layered and orderly stable pattern is formed in space, which is in harmony with the natural environment of the mountain. It is also harmonious with the mountain humanistic environment, which can provide sustainable ecological services for the development of human survival, and it can also ensure the safety of the surrounding environment or large-scale environment.
The importance of safety barriers
- The particularity and vulnerability of mountain systems
- The most significant feature of the mountainous region is the high-energy slope environment. The gradient process of the slope environment determines that the mountain logistics and energy flow have the output-oriented characteristics. The resulting infrastructure system has fragile and robust characteristics and is sensitive to external forces And the vulnerability of mountain-specific disasters. Therefore, the importance of establishing an inland ecological security barrier that facilitates energy storage and regulation and logistics buffering and retardation is obvious.
- The importance of tackling global warming and water scarcity
- Global warming and shortage of fresh water resources are two major environmental issues facing the world today. The role of mountain carbon reduction and the function of mountain towers has become increasingly important. China's mountainous land is the region with the most abundant biological resources, and it has more than 90% of the country's forest area. According to the relevant data, the average annual growth of China s mountainous forest stocks has reached 80 × 10 6 m 3. Based on the average ratio of growth and CO 2 absorption, the annual accumulated CO 2 has reached 280 × 10 8 t. The system is a huge carbon pool, and carbon sinks play an important role in slowing global warming.
- Functional degradation of mountain ecological security barriers and corresponding ecological and environmental problems are becoming increasingly prominent
- Due to the long-term impact of traditional farming practices and the rapid pressure of rapid population growth on mountain resources, the problem of the destruction of mountain resources is very serious. There are few original natural vegetation ecosystems, and large-scale degradation of mountain ecosystems. Mountain ecosystem services have weakened the most, reducing their ability to reduce threats such as sedimentation and flooding in the middle and lower reaches of the river and increase river water supply in the rainy season. In recent years, through the implementation of a number of major national ecological construction projects such as the construction of protective forest systems, protection of natural forests, and conversion of farmland to forests, the ecological appearance of land fusion has improved, and forest coverage and vegetation coverage have increased significantly. The function and the role of ecological security barriers have not been significantly improved, and the area of mountain desertification in some areas is still in a state of continuous degradation. In particular, the situation of fragile ecology and poverty coexisting has not changed much so far. Ecologically fragile mountains are still the concentrated distribution of the poor in China. [1]