replacement resources
1.In order to avoid excessive product resulted from over competition under mass production, and to achieve the balance of production and sale in microeconomic fields and the balance of aggregate supplement and aggregate demand in macroeconomic fields, it is necessary to reengineer the economic process, that is, making exchange ahead of production through replacement of material resources with information resources, in other words, virtual exchange in advance.
2.The current and rapid loss of tropical hardwoods in many regions due to high commercial demand, low rates of successful replacement, and the long periods of growth necessary to produce new, marketable resources has raised concern about over-exploitation of some species, such as rosewood, although none of the trees are known to have been driven to extinction.
3.On the basis of analyzing the existing situation of the utilization of grassland resources and the development of animal husbandry in Yanchi county, and learning the method of Xinjian grassland ecological replacement, some suggestions are put forward such as adhereing to construct ecosystem protection zone, fencing and cultivating the degraded grassland, and using the low production and irrigable farmland replace the degraded grassland.
