Production efficiency and GHG emissions reduction potential evaluation in the crop production system based on emergy synthesis and nonseparable undesirable output DEA: A case study in Zhejiang Province, China.

PLoS One · 2018 · PMC6211734 · PMID 30383842

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an increasing trendno p-value reported

The latter has an increasing trend from 1978 to 2006 and then deceases due to the increase of arable area.

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a decreasing trendno p-value reported

The self-sufficiency ratio (SSR = (FRR+FNR)/U) indicator exhibited a decreasing trend for the ratio of renewable inputs to total inputs.

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