There are many different ways to measure agricultural performance besides food yield: energy use, environmental costs, water purity, carbon footprint and biodiversity.

除了粮食产量之外，还有许多不同的方法来衡量农业表现：能源使用、环境成本、水的纯度、碳足迹和生物多样性。

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So this is a timely opportunity to remind the world how agricultural biodiversity can improve productivity and nutrition,enhance livelihoods, respond to environmental challenges and deliver food security, Last July,the G8 summit in L'Aquila,Italy, issued a statement saying, There is an urgent need for decisive action to free humankind from hunger and poverty.

VOA: standard.2010.03.29

Collectively, CGIAR centres maintain 600, 000 plant varieties in crop genebanks in a global effort to conserve agricultural biodiversity.

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As it stands, we are losing agricultural biodiversity at a tremendous rate.

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Water scarcity, diminishing agricultural yields and biodiversity loss are only a few of the consequences of these forces.

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