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Hebei Province in the historical period of the past once widely distributed in the forest and grassland, good ecological environment. The Neolithic Yangshao began, in order to obtain the prey, construction place to live, grow crops original crowd had already started to use fire, knives, axes, stone plow labor, some primitive tribes live around the forests, grasslands began to receive the initial damage . Into the slave society, the war between the various primitive tribes frequent occurrence burned consume some trees, smelting, pottery, architectural handicraft continuous development and began felling large tracts of forest, agricultural cultivation methods, extensive, and large areas of secondary forest, shrub, grass been reclaimed as farmland. Which this belongs region of Hebei Province, forests, grasslands have been large-scale destruction. Warring States period, into the feudal society, the further development of agriculture. Various Zhu Hou Guoxing repair water conservancy project, the construction of tall sturdy defense facilities, the construction of large-scale palaces, temples, and continue to occur campaign, a large area of ??forest disturbance plain areas. Late Warring States period, the North China Plain forest has disappeared. Qin and Han dynasties, the first peak of the feudal society in the history of China has made significant progress in social productive forces, the agricultural production tools and production technology innovation situation. Qin Dynasty also introduced a policy of reward Nongken, has hundreds of thousands of people moved to the frontier and labor shortage areas land reclamation, and engaged in agricultural production. Damage to a large area of ??forests, grasslands, agricultural population is growing and expanding farming area. Today Hebei Province, belongs to the plains and hilly areas of forest disappeared, the vast majority of farmland reclamation has become. Tang and Song dynasties, Taihang and Luliang Mountain forests began to be large-scale deforestation. Yuan Dynasty to the Republic of China, North China's mountain forests suffered serious damage, the mountain forest Yanshan, Taihang and so have been completely destroyed. The early years of the Ming and Qing Dynasties are taken to encourage the reclamation measures, the Qing government to implement the \The founding of the People's Republic of China to the end of the 20th century, made great achievements in the plain areas and drylands afforestation, closing off. But the nation's major forest areas over-harvesting, consumption is greater than the growth of the amount of forest resources crisis. Grassland areas due to overgrazing, resulting in most of the grassland degradation, and at the same time, causing a large area of ??grassland prairie wasteland grain disappear. Forest, grassland, extensive damage has led to a serious ecological disaster. From the beginning of the Western Han Dynasty, the Loess Plateau serious soil erosion and frequent flooding of the Yellow River Basin. Subsequently, the Yongding River, Fen rivers there have been severe floods. Northern China's drought is also showing a rising trend. The major river hydrology deterioration, the disappearance of a large number of lakes, wetlands, wildlife resources is drastically reduced. Farming-pastoral regions the oasis surrounding grassland desertification area of ??continuous development. Due to the strength of the agricultural reclamation and frequent war, from the start of the Eastern Han Dynasty, some areas had a severe desertification. Some desert desertification process is also expanding. The increasing dust weather seriously affected the daily life of the people strongly restricts the region's economic and social development. Among the factors that cause forests, grasslands huge change and desertification, human factors play a leading role in the natural factors also played a role. Lead to the decrease in Chinese forests, grasslands, a leading human factors in desertification, increasing population caused by sustained pressure on forests, grassland resources is the fundamental reason. Today, China's science and technology and the national economy has made considerable progress, the Chinese government has been to protect and restore the ecological environment as a basic national policy, long-term unremitting, and resolutely implement the \The Pasture grasses policy is changing the ecological environment in Hebei Province, an important guarantee for building a harmonious society. Ecological construction in Hebei Province to protect and repair the environment, must be based on the different regions of the soil moisture conditions, pay attention to the forestry, grass, agriculture coordinated development, seeking truth from facts, to follow the laws of ecology and economics, to take \should grass grass \In short, the study of desertification and its causes in the historical period, of great significance to improve the overall structure of the discipline.
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