The principle of "Alternating Engineering and Shade price" is applied to estimate the economic value of water conservation caused by forest ecological system.
采用水源调节“替代工程的影子价格”原理，计算了该地区森林生态系统的水源涵养经济价值。
For many years, the managers of forest always value economical benefit most and notice social benefit, but neglect ecological benefit.
多年来，森林经营者一直重视经济效益，兼顾社会效益，淡化生态效益。
However, the externality of forest ecological effect makes its value cannot be compensated, which becomes principally limit factor for forest ecological construction.
但由于森林生态效益的外在性，使得其价值补偿无法实现，从而成为我国森林生态建设的根本性制约因素。
Traditional forest accounting does not include the examining and calculating of forest ecological value.
在传统的林业会计中没有将森林生态效益纳入其核算体系。
Traditional forest accounting does not include the examining and calculating of forest ecological value.
在传统的林业会计中没有将森林生态效益纳入其核算体系。
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