摘要
A new structural parameter of shelterbelts, above-ground density of biomass volume, was putforward in this paper. Its practicality in managements of the shelterbelts and its physical meaning of windreduction were expounded. Analytical relations between the new parameter and often-used parameters(permeability and porosity) were deduced. An example was given to show the application of the newparameter in the management of shelterbelts.
A new structural parameter of shelterbelts, above-ground density of biomass volume, was put forward in this paper. Its practicality in managements of the shelterbelts and its physical meaning of wind reduction were expounded. Analytical relations between the new parameter andoften-used parameters （permeability and porosity） were deduced. An example was given to show the application of the new parameter in the management of shelterbelts.
基金
Supported by the Doctorial Foundation of Liaoning province and the Project of Institute of Applied Ecology, Chinese Academy ofSciences.
