探讨了区域生态系统健康指标选择原则。
The selection principles for regional ecosystem health index are discussed.
以山东省垦利县生态系统为例，从时间纵向上判断区域生态系统健康的走势。
Take Kenli County for example, trend of the ecological system health was judged from the lengthways time.
它是满足基本人类需要，健康、粮食生产、能源和维持区域和全球生态系统所必不可少的。
It is essential for satisfying basic human needs, health, food production, energy and maintenance of regional and global ecosystems.
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