Quantification of Agrosystem Productivity(ASP)and Analysis on its Current Situation in Cbina

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cje ›› 1993, Vol. ›› Issue (2): 21-22.

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Quantification of Agrosystem Productivity(ASP)and Analysis on its Current Situation in Cbina

Lu Jin-deng, Han Chunru

Beijing Agricultural University, Beijing 100094

Online:1993-04-10

Abstract

Abstract: Based on a brief analysis on the formation process of ASP, its concept is described and an integrated indi-cator for its quantification—ASP2 is put forwards.From those,the ASP levels in various regions of China are analyzed and 8 levels are divided by using.Hierarchic clustering method.It's：clarified that AS-PI is a more reasonable indicator for the ecolomic evaluation of agrosystem.

Key words: heavy metal, geo-accumulation index, potential ecological risk index, sediment, reservoir.

Lu Jin-deng, Han Chunru. Quantification of Agrosystem Productivity(ASP)and Analysis on its Current Situation in Cbina[J]. cje, 1993, (2): 21-22.

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Quantification of Agrosystem Productivity(ASP)and Analysis on its Current Situation in Cbina

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