Identification of Synergy and Tradeoffs Among Functions of Cultivated Land Based on PCA—A Case Study in Hubei Province

KE Xinli; MA Yanchun; SONG Xiaoqing; TANG Lanping; LIU Shichao; JIN Ying

doi:10.13961/j.cnki.stbctb.2018.06.050

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Identification of Synergy and Tradeoffs Among Functions of Cultivated Land Based on PCA—A Case Study in Hubei Province

- Identification of Synergy and Tradeoffs Among Functions of Cultivated Land Based on PCA—A Case Study in Hubei Province
- Bulletin of Soiland Water Conservation Vol. 38, Issue 6, Pages: 329-336(2018)
- 作者机构：
  
  1. 华中农业大学公共管理学院,湖北,武汉,430070
  2. 中国地质大学(武汉)公共管理学院,湖北,武汉,430070
  3. 国土资源评价与利用湖南省重点实验室,湖南,长沙,410007
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2018.06.050
  CLC：
- Published：2018
- 稿件说明：
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KE Xinli, MA Yanchun, SONG Xiaoqing, et al. Identification of Synergy and Tradeoffs Among Functions of Cultivated Land Based on PCA—A Case Study in Hubei Province[J]. Bulletin of Soiland Water Conservation, 2018, 38(6): 329-336.
DOI：

KE Xinli, MA Yanchun, SONG Xiaoqing, et al. Identification of Synergy and Tradeoffs Among Functions of Cultivated Land Based on PCA—A Case Study in Hubei Province[J]. Bulletin of Soiland Water Conservation, 2018, 38(6): 329-336. DOI： 10.13961/j.cnki.stbctb.2018.06.050.

摘要

[目的] 以湖北省为例，识别耕地功能之间的冲突与协同关系及各耕地功能的强弱，为耕地多功能利用与管理提供技术支撑及决策信息。[方法] 采用主成分分析法（PCA）进行识别论证。[结果] ①湖北省耕地的基本生活保障功能最强，生态安全维护功能次之，就业保障功能最弱；②湖北省耕地的基本生活保障功能、生态安全维护功能和就业保障功能之间、耕地的社会安定维护功能和粮食安全保障功能之间、耕地的就业保障功能、家庭经济贡献功能和国民经济贡献功能之间存在协同关系； ③湖北省耕地的社会安定维护和粮食安全保障功能束与家庭经济贡献和国民经济贡献功能束之间存在显著的冲突关系。[结论] PCA法不仅可以表达各耕地功能的强弱，更能直观表达耕地功能间的冲突与协同关系以及冲突与协同的程度，为耕地多功能利用与管理提供了一定的技术支撑及决策支持。

Abstract

[Objective] Taking Hubei Province as an example

the tradeoffs and synergy between cultivated land functions and the strength of each function were studied in order to provide technical supports and decision-making suggestions for the multi-purpose utilization and management of cultivated land.[Methods] The principal component analysis(PCA) was used to identify the relationship between functions.[Results] ① The basic living security function of cultivated land in Hubei Province is the strongest

the ecological security maintenance function is second

and the employment security function is the weakest. ② There is a synergy between the basic living security function

ecological security maintenance function and employment security function

between the social stability maintenance function and the food security function

between the employment security function

the family economic contribution function and the national economic contribution function

respectively. ③ The social stability maintenance and food security had a tradeoff with the family economic contribution and the contribution to the national economy.[Conclusion] The PCA method can not only express the strength of each function

but also intuitively express the relationships and their degree of interaction between functions. Therefore

it can provide certain technical support and decision support for the multi-purpose utilization and management of cultivated land.

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