Forest Ecological Benefits Analysis Of Urban Mines And Factories In Arid Sand Area--Take Dalate Factory For Example

The ecological benefits evaluation of city greenest in arid sand area is blank. In arid and semi-arid area, dim ate is dry, sanding is frequent, ecological environment is adverse, so Comprehensive analysis and evaluation in there ares is significant from theory and practice.Dilate factory area greenness is taken for example in this paper, and adjusting carbon-oxygen balance, decreasing temperature, increasing humidity, in tenting dust,, reducing noise, absorbing SO2 else. And the special ecosystem function benefits of arid and semiarid area, in duding lowering the wind velocity, impeding the sand wind, increasing he air degree of humidity, regulating the air temperature, protecting the soil water. The results indicated afforest trees in Dalate power station all have the function of absorbing carbon, releasing oxygen, decreasing temperature, increasing humidity and preventing air pollution. See from the function results, it is best for deciduous broadleaf tree on the potential of absorbing carbon-releasing oxygen, decreasing temperature and purifying SO2; next is fewer shrub and coniferous tree, grass is the worst. It is obvious that sparse wood grass, mixed with trees, shrub and grass in life areca is better than factory sparse lawn and contrast ground in increasing air humidity, lowering the wind velocity and protecting the water of soil. See from the rate of resorting dust, different green ground type have the obvious difference in resorting dust effect, anomy them, the effect value of life area sparse woods lawn is biggest, the next is the woods of defending dirty, reducing noise and producing district sparse lawn. The noise in Dalate power station average Ames to the control standard of industry and business enterprise by the nation provided.