| Plant succession is a long-term, complex ecological process of succession theory is the study of ecology is still a major issue in one of the main methods of long-term research, space for the time sequence of ecological studies, math building Dynamic simulation model of the three methods. Despite a succession of studies of the common conceptual framework, but it is often the way to pluralism.The proposed road project, "Mengzi-Xinjie Highway" at the Hekou County, Yunnan Province, is a type of tropical rain forest climate seasonal forest, it is part of the subtropical monsoon evergreen broad-leaved forest, the complex hierarchical structure, a wide variety of plants. As a result of the special terrain, in the Yunnan-Guizhou Plateau to the valley slopes of the hills transition Canyon area, and both the eastern part of a monsoon climate-tropical monsoon climate and ocean mountain plateau monsoon climate characteristics. The average temperature on the hottest, the coldest month of the most mean temperature, annual mean temperature, annual average relative humidity of 86%, the province is one of the few wet areas. County estuary area is wet, hot shower the whole county in the same quarter, the average annual rainfall 1784.77mm, the most rainfall for the year of 2649.5 mm, at least for the year of 1325.2mm. The annual average number of days of rainfall in 182 days, the rainy season (May to October) rainfall throughout the year accounted for 82% of the rainfall. Rainfall on the changes in the law is on a small number of nights. Four Seasons uneven distribution of precipitation, up to the summer, followed by the fall. Very suitable for the growth of plants, highways crossing the road, an added burden on the surrounding habitat impact.In this paper, the rules of vegetation succession is studied,According to the Mengxin region climate, terrain and soil conditions, vegetation for conservation among the existing problems, such as the high cost of conservation, community structure is not quite reasonable. Through observation and testing,make use of curve-fitting method to obtain the data analysis, given the region Road area of the mathematical models of vegetation succession. Research on the highway slope engineering the rules of vegetation succession. The results showed that:Road in a relatively stable region of the vegetation should be in a drought-resistant shrubs mainly herbaceous plants supplemented by the community. The focus on the conservation of nature and give full play to regulate and reduce the man-made interference, cultivate a relatively stable plant community, to reduce the cost of conservation. Slope of choice for the plant and provide a theoretical basis, to reduce the cost of conservation slope. |