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    Analysis and Evaluation of Agricultural Non-point Source Pollution Sources in Four Cities in the Pearl River Delta by XIA Lijia, YU Muqin, YAN Meng, JIANG Yu, XIONG Jing

    Published 2021-01-01
    “…Based on the 2018 statistical yearbook,this paper carries out the statistics and analysis on the agricultural non-point source pollution of the four major economic cities,namely Guangzhou,Dongguan,Shenzhen and Foshan in the Pearl River Delta by the inventory analysis method.The study found that:In 2018,the four cities in the Pearl River Delta produced 137 179.3 tons of COD,19 345.5 tons of TN,2 865.2 tons of TP,and 2 926.4 tons of NH<sup>+</sup><sub>4</sub>-N from agricultural non-point source pollution,among which the COD is considered as the primary pollutant,mainly from livestock and poultry breeding,while TN,NH<sup>+</sup><sub>4</sub>-N and TP mainly come from rural life and planting industry.In terms of regions,the pollutant emission intensity of Foshan is 427.42 kg/hm<sup>2</sup>,which is 1.5 times that of Guangzhou,ranking first among the four cities.The comprehensive water quality index caused by agricultural non-point source pollution in Guangzhou and Foshan is both greater than 4,so the two cities are considered as severely polluted areas,with heavy pressure to reduce agricultural non-point source pollution,while Dongguan and Shenzhen are lightly polluted areas.…”
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    CEO power and innovative knowledge assets: the joint moderating effect of firm size and firm age by Yexin Liu, Maoyuan Huang, Weiwei Wu, Ying Yang

    Published 2025-01-01
    “…This paper empirically tested the hypotheses based on a sample of manufacturing firms listed on the Shanghai and Shenzhen Stock Exchanges from 2009 to 2019. The fixed effect model was employed to examine the relationship between CEO power and innovative knowledge assets, as well as the joint moderating effect of firm size and firm age. …”
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