Desertification
发布时间 2023-10-31 21:06:48作者: 蒙娜丽扎
Desertification is a serious global challenge. Desertification control is a great cause for mankind to make achievements in the present age and benefit the future generations. 1. Definition of desertification Desertification is divided into two categories, narrow and broad. In a broad sense, desertification refers to the loss of land productivity caused by drought, vegetation destruction, wind erosion, water erosion, soil salinization, etc. Desertification in the narrow sense refers to desertification. 2. Specific manifestations of desertification Land desertification, black soil degradation, grassland degradation, soil erosion, rocky desertification, soil bad salinization, red desertification Land desertification is the result of synthetic action of human factors and natural factors. In order to restore the harmonious coexistence between man and nature in the land degradation area, it is necessary to improve the scientific nature of desertification control. On the one hand, we should grasp the balance between active actions and non-actions, grasp artificial governance and grasp natural restoration. For areas that do not have the conditions for governance, the red line for desert ecological protection should be strictly implemented and forbidden protection should be implemented. For land degradation caused by human factors, we should also adhere to water measurement, water to determine green, forest and water balance, and focus on artificial afforestation in areas with good water resources. Only in this way can the natural evolutionary process be promoted in a benign direction. On the other hand, improve the precision level of prevention and control. China organizes a national survey of desertification and desertified land every five years, and an annual dynamic monitoring will be added in 2021, precisely in order to dynamically grasp the changes in desertification and desertified land and constantly optimize prevention and control programs. At present, China is continuing to promote afforestation, grass improvement, desertification prevention and control, returning farmland to forest and grass, oil tea planting and other tasks. Last year, for the first time, annual afforestation tasks were issued with location reporting and map spots. Desertification control is a long-term and arduous task, which requires the joint efforts of the whole society.