“freshwater ecosystem productivity”的概念、定义、翻译、参考文献-科学参考

单词	freshwater ecosystem productivity
释义	freshwater ecosystem productivity Encyclopedia 理学淡水生态系统生产力释 freshwater ecosystem productivity淡水生态系统生产力有广义和狭义之分。从广义上讲，是指淡水水体中所有生物的总生产能力，而不是仅局限于对人类有价值的所谓经济产物；狭义上来说，是指淡水水体中能满足有经济价值的生物生长、发育、繁殖的性能，水体中生产的经济产品越多，则其生产力越高。淡水生态系统生产力的大小，不仅与水体理化特性（如肥沃程度）有关，也与其中生物组成及人类的经济活动有关。
随便看	organizational communication media organizational communication network organizational communication objectives organizational communication power organizational communication pressure of change organizational communication process organizational communication System organizational communication system organizational conflict organizational construction organizational crisis organizational crisis communication organizational crisis prevention organizational cross communication organizational culture organizational culture framework Organizational Culture of Library organizational culture strategy organizational decision making organizational decision support system organizational design management organizational development and innovation organizational efficiency organizational environment for megaprojects leadership organizational equilibrium theory

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