ตัวอย่าง non-renewable

• For non-renewable resources, with relatively simple dynamics, this works well; for living resources, however, far greater nonlinearities intrude, complicating analysis immensely.

• Recent increases in non-renewable energy costs, however, may mean farmers will consider alternative crop production systems that require fewer energy inputs, such as forage-based rotations94.

• However, this does not permit overly rapid depletion of non-renewable resources or imply that environmental degradation does not matter.

• Depleting a stock of a non-renewable resource does not change the economy's instantaneous net productive capacity.

• Over extraction may even result in use of the non-renewable part of the resource.

• The latter is a non-renewable resource which is not productive as a stock.

• As for the suppliers of a non-renewable resource, say oil, any quantity supplied at a particular point in time cannot be continued indefinitely.

• Both approaches dominated the literature on economic rent calculation and optimal extraction of non-renewable resources.

• Although guano is accepted as an input for organic production, it is important to emphasize that guano is a non-renewable resource, as rapid exploitation will lead to its depletion.

• Apart from small islands and coastal communities, the social systems under threat are those producing the most carbon dioxide and overexploiting both renewable and non-renewable resources.

• Some stocks of groundwater are found in largely non-renewable aquifers where water was deposited in ancient times, underlying regions having little river flow or precipitation and thus little recharge.

• Managed with some level of diversity, perennial cropping systems promise many benefits in terms of land, water and wildlife conservation and decreased dependence on non-renewable energy sources4.

• For the natural capital component (the non-renewable resource), the positive returns are solely in terms of capital gains, which are not captured by its zero own rate of interest.

• It is assumed that timber is a non-renewable resource based in the fact that timber exploitation derives from forestland conversion devoted to agricultural production and cattle-raising.

• The two classic approaches to intergenerational equity in an economy with capital and non-renewable resources are maximin, which yields constant consumption, and optimality using a constant utility discount rate.