三年试验结果表明，新系统显著提高了生产力、生态效益和经济效益。
The results showed that the productivity, ecological and economic benefits were greatly raised in the new system.
一项报告警告，持续低效利用水源将威胁欧洲的经济、生产力和生态系统。
Continued inefficient use of water could threaten Europe's economy, productivity and ecosystems, a report has warned.
具有生产力高、耐干旱、耐贫瘠、耐盐碱、营养丰富和适口性好等生物生态学特性，经济价值较高。
It has lots of specialities in Ecophysiology such as high productivity, tolerance of dry, leanness-resistant and saline-alkali tolerance, abundance of nutrition, great worth of economy and feels well.
人口环境经济学的研究成果告诉我们：在一定的生产力条件下，人口的增长应当与生态环境的承受力相适应。
Population, environment, economics research results tell us: the productivity of certain conditions, population growth and ecological environment should be the affordability of them.
人口环境经济学的研究成果告诉我们：在一定的生产力条件下，人口的增长应当与生态环境的承受力相适应。
Population, environment, economics research results tell us: the productivity of certain conditions, population growth and ecological environment should be the affordability of them.
应用推荐