the ecosystem value的用法和樣例：
例句
- In different fields the value has its different attributes,natural or anthropic.
生態價值的源泉是生態系統的服務功能。 - The specificity of forest ecology value accounting decides that it should obey the social principle, the economic and ecological efficiency principle.
森林生態價值會計的特殊性決定了必須遵循社會性原則及兼顧經濟效益和生態效益原則。
