The index combines life satisfaction, life expectancy and environmental footprint — the amount of land required to sustain the population and absorb its energy consumption.
{3}该快乐指数综合考虑了人们的生活满意度、平均寿命以及对环境的影响(主要通过衡量维持居民生存以及提供足够能源消耗所需的土地数量来了解)等多项指标。
Further land reform would both increase the mobility of migrants and, by facilitating land consolidation and mechanization, boost incomes and consumption on the countryside.
推进土地改革可以通过促进土地整合和机械化增加农民工的流动，同时也能提高农村收入和消费水平。
The study's authors looked at 8,000 populations of 2,500 species and studied the change in land use and water consumption across the globe。
该研究的作者对2500多个物种、8000个种群的生存状况进行了观察，并对全球土地和水资源消耗方式的变化进行了研究。
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