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The generic technology identification of saline–alkali land management and improvement based on social network analysis

  • Li Liu
  • Xiuguang Bai
  • Zhide Jiang
Article

Abstract

Among technologies of saline–alkali land management and improvement, some can be applied to different regions and causes, and play the role of generic technology. In this paper, by using the patent Derwent Innovation Index, we firstly retrieve the relevant patents, then through cleaning the patent data, build a patent citation network. Finally, we use technology co-occurrence strength, out centrality, betweenness centrality, SPLC path analysis, the number of patent families as well the number of valid countries or territories designated by the patent for identification, from fundamentality, externality and benefit of generic technology characteristics. The conclusion is that fertilizer, organic fertilizer and green manure, microbial fermentation technology, soil tillage and working technology, irrigation and drainage systems and the saline, the saline–alkali substance cleaning technology, planting salt-tolerant plants are generic technologies for saline–alkali land management and improvement.

Keywords

Saline–alkali land Generic technology Identification Social network analysis Patent citation network 

Notes

Acknowledgements

The authors acknowledge the National Key Research and Development Program of China (Grant: 2016YFC0503703).

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.College of Economics and ManagementNorthwest Agriculture and Forestry UniversityShaanxiChina
  2. 2.College of History and Tourism CultureShanxi Normal UniversityShanxiChina

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