| 英文摘要： |
Controlling non-point source pollution (NPSP) has been viewed as a priority for realizing rural sustainability. Substantial literature has examined the effects of economic growth or urbanization on NPSP, while little work has been undertaken to investigate how rural transformation development (RTD) influence NPSP, and how differences in the process itself affect the impact that RTD has on such emissions. To fill these gaps, this paper empirically and comprehensively investigates the multiple effects of RTD on NPSP, by addressing three different dimensions of the RTD process-namely, regional urbanization, agricultural modernization, and land use transition. Longitudinal trends analysis of NPSP loads over the long-term (1990?2017) using the approach of inventory analysis was conducted to overcome the difficulty in gathering pollution monitoring data. Our results suggest that RTD generally presents an inverted ?U? shaped relationship with NPSP, and differentiated evolution trajectories exist between different dimensions of RTD and different components and sources of NPSP. The turning points of total phosphor (TP) and planting industry-induced NPSP emission appear later than others. Land use transition and agricultural modernization process have significantly positive relations with the emissions from the planting industry. Furthermore, the evolution of NPSP is highly coupled with the shifts in national strategies, agricultural policies, and environmental regulations. These findings provide insights into the humanenvironment relation, suggesting that reasonable countermeasures should be formulated corresponding to the development stage of RTD. |
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