Ecological Benefit Evaluation of Different Types of Artificial Forests on the Weibei-loess Plateau
[Objective]To construct ecological benefit evaluation methods adapted to the characteristics of local plantation resources and ecological services,and clarify the impacts of different types of plantation construction on the ecological environment in the eastern,central and western parts of the region.It provides a theoretical basis for accurately quantifying and scientifically evaluating the ecological service function of the plantation in different regions,optimizing the stand structure of the plantation,formulating the ecological compensation intensity standard of the plantation,accurately measuring and evaluating the carbon sink of the plantation,and transforming the"green appearance level"into"ecological value".[Methods]In the construction of the loess plateau ecological forest,ecological economic forest,economic forest of weihe effective area calculation model based on the investigation and determination of typical area and forest survey to collect data and measurement parameters,such as the method of combining calculation analysis of the different types,different regions of the eastern,central and western plantation water conservation,carbon sequestration release oxygen,conservation of soil and purify the atmosphere of ecological benefits.[Results](1)The ecological benefits of different types of plantation in Weibei Loess Plateau were ecological forest＞economic forest＞ecological economic forest;The value of water conservation is the highest,the value of soil conservation and carbon fixation and oxygen release is the second,and the value of air purification is the lowest.(2)The ecological benefits per unit area of plantation were economic forest＞ecological forest＞ecological economic forest.(3)The ecological benefits of plantation were in the middle＞East＞west.[Conclusion]Ecological forest and economic forest play an important role in the ecological benefits,and increasing their proportion can significantly improve the ecological benefits of plantations.In order to improve the ecological benefits of plantations in Weibei-loess plateau,ecological forest should strengthen the transformation of sparse forest,the cultivation of virgin forest and the sealing of shrubland.At the same time,moderate development of economic forest can effectively improve the ecological benefits of artificial forest in the west and even the whole Weibei Loess Plateau.
万方数据
维普
