The situation of protecting cultivated land after 30% soil erosion in China is grim.

By the end of 2013, there were 646.1684 million hectares of agricultural land in China, with a net increase of 4900 hectares of arable land during the year. The total area of soil erosion in China is 2.9491 million square kilometers, accounting for 31.12% of the total area of the census. Zhao Ye, a professor at the School of Environment at Beijing normal University, pointed out that the causes of soil erosion are various, and natural factors and man-made conditions should also be taken into account.

Yesterday, the Ministry of Environmental Protection issued the 2014 Bulletin on the State of China's Environment. The communique pointed out that in 2014, with the great attention of the CPC Central Committee and the State Council, positive progress was made in the construction of ecological civilization and reform in the field of ecological environment, and new steps were made in the prevention and control of air, water and soil pollution. the annual task of reducing the total amount of major pollutants has been successfully completed, the comprehensive role of the optimal development of environmental protection continues to emerge, the construction of environmental legal system, law enforcement and supervision and environmental risk management have become more powerful, and ecological and environmental protection has advanced steadily. Nuclear and radiation safety is controllable.

According to the communique, the country now has a forest area of 208 million hectares and a forest accumulation of 15.137 billion cubic meters. The prairie covers an area of nearly 400 million hectares, accounting for about 41.7 percent of the total land area, which is the largest terrestrial ecosystem and ecological security barrier in the country. By the end of 2013, there were 646.1684 million hectares of agricultural land in China, with a net increase of 4900 hectares of arable land during the year. The total area of soil erosion in China is 2.9491 million square kilometers, accounting for 31.12% of the total area of the census. Zhao Ye, a professor at the School of Environment at Beijing normal University, pointed out that the causes of soil erosion are various, and natural factors and man-made conditions should also be taken into account.

Zhao Ye: there are two reasons for the high proportion of soil erosion in China, one is the natural reason. China is a country with large mountainous and hilly area, which creates a potential energy for soil erosion. China is mainly a continental monsoon climate, precipitation is concentrated, precipitation intensity is also relatively large, China's soil types are also very complex. For man-made reasons, the intensity of land development and utilization in China is relatively large, and our way of use is relatively extensive. Another is deforestation, including the lack of surface vegetation. So to control, you have to take into account the terrain, climate and soil, which are the three most important factors. For example, the land renovation project that our country has been carrying out in recent years is also important. now, due to all aspects of construction funds, our land renovation is to level the land. the key is to further optimize the way of our land use.

According to the communique, the overall eco-environmental quality of the country was "average" in 2013. Among the 2461 counties, counties with "excellent" and "good" ecological environment quality account for 46.7% of the total land area, "average" counties account for 23.0%, and "poor" and "poor" counties account for 30.3%. Zhao Ye, a professor at the School of Environment at Beijing normal University, believes that compared with environmental control, how to prevent environmental pollution is more important.

Zhao Ye: I don't think the treatment of environmental problems is the most important. Treatment is called terminal treatment in our environment, because it is very passive if you do not control the sources of pollution and the causes that occur. I think it is very important to raise the ecological and environmental awareness of the public in China. If everyone knew about this thing, many of our environmental problems and environmental pollution accidents would not have happened. this is called source control. Now there are individuals dealing with environmental problems, there may be 100 people to create new environmental problems for you. I suggest that we should still publicize this.