Average Propagation Length Analysis for Water-land Resource in Urban Socio-economic System: A Nexus Perspective

Fang Delin, Duan Cuncun, Chen Bin

Abstract


In order to realize the efficiency and stability of economic development and agricultural production, great efforts are need to coordinate the water conservation and intensive use of land resources. This study investigates the coupling effects between water- land resources among different sectors in urban socio- economic network. In the production chain, the connection length of trade linkages between regions and sectors could be evaluated by average propagation length (APL) index in an input-output framework. The combination of the size of the linkages and the distance between sectors can visualize the production structure and water-land correlation between each sector and region along the production chains. It illustrates that the fragmentation production structure shows a remarkable influence on both water and land resources, leading to heavy environmental stress on water or land scarcity region. The inequality between regions is not only reflected from economic benefit (added-value gains) aspect, but also shown by the utilization of natural resource. Furthermore, the food production chain, including agricultural sector, food processing sector, dairy sector and catering sector, shows remarkable integral water-land nexus strength.


DOI
10.12783/dteees/iceee2018/27769

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