Analysis on key elements of ecological forestry construction in Yunnan

Yunnan is a large forestry province with rich forest resources in China.For protecting and realizing the sustainable development of its forest and biodiversity in the rapid development of social economy, ecological forestry construction is an important field that must be paid attention to and practiced.Scholars at home and abroad generally accept and widely use the input-output idea to evaluate the ecological forestry problem. So, this paper selects six key elements of ecological forestry construction in Yunnan. Two aspects of analysis were carried out by using SPSS software. one of is quantitative analysis from the perspective of time series; another is from the spatial dimension,the paper makes a regional comparative analysis. During the study period,the results showed that the area of forest land increases rapidly; the total output value of forestry economy has been continuously improved and the industrial structure has been continuously optimized; the forest intermediate consumption of the four regions generally showed an upward trend;the total number of forestry practitioners in South and Northwest Yunnan is large, and the increase rate is also the largest;the environmental pollution caused by forestry production has been controlled to a certain extent;the emission of SO₂ from forestry is decreasing year by year, and the emission of forestry wastewater shows a fast downward trend,but the amplitude is small. In view of the data analysis results of this paper, this paper gave some suggestion to promote the development of Yunnan ecological forestry.