Source Journal of CSCD
Source Journal for Chinese Scientific and Technical Papers
Core Journal of RCCSE
Included in JST China
Volume 42 Issue 4
Apr.  2024
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Article Contents
ZHONG Qiumeng, DENG Zijun, LIANG Yuhan, LI Hui, LIANG Sai. EFFECTS OF CHINA’S MULTI-REGIONAL TRANSITIONS OF PRODUCTION AND CONSUMPTION PATTERNS ON WATER USE IN THE PEARL RIVER BASIN[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(4): 74-81. doi: 10.13205/j.hjgc.202404009
Citation: ZHONG Qiumeng, DENG Zijun, LIANG Yuhan, LI Hui, LIANG Sai. EFFECTS OF CHINA’S MULTI-REGIONAL TRANSITIONS OF PRODUCTION AND CONSUMPTION PATTERNS ON WATER USE IN THE PEARL RIVER BASIN[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(4): 74-81. doi: 10.13205/j.hjgc.202404009

EFFECTS OF CHINA’S MULTI-REGIONAL TRANSITIONS OF PRODUCTION AND CONSUMPTION PATTERNS ON WATER USE IN THE PEARL RIVER BASIN

doi: 10.13205/j.hjgc.202404009
  • Received Date: 2023-02-13
    Available Online: 2024-06-01
  • The basin compound ecosystem consists of the socioeconomic system and natural water system. Exploring the effects of production and consumption pattern transitions within and outside the basin on water uses in the basin can provide new insights into water resource management of the basin compound ecosystem. Based on the environmentally extended multi-regional input-output model and structural decomposition analysis, this study investigated the effects of China’s multi-regional transitions of production and consumption patterns on water use changes in the Pearl River Basin from 2007 to 2017. Results showed that the final demand from outside the basin drove 20% to 23% of water use in the Pearl River Basin. Zhejiang and Hebei contributed significantly to the water use increments in the Pearl River Basin. In contrast, Shanghai and Beijing were vital in reducing water use. These two provinces contributed even more than those within the basin (except for Guangxi and Guangdong), mainly attributed to their optimizations of the final demand structure. The decline in water use intensity is a critical factor contributing to the water use reductions in the Pearl River Basin. However, in addition to improving water use efficiency within the basin, it is urgent to break through the end-of-pipe control-oriented approach for water resource management. This study proposed that water resource management in the Pearl River Basin should take a multi-regional compound ecosystem perspective. Policymakers should pay attention to collaborative transitions of production and consumption patterns of both in-basin and out-of-basin regions, and reduce water uses of the whole supply chain from the demand perspective.
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