Analysis into influencing factors of cultivated land productivity in Gao'an City based on structural equation model

doi:10.3969/j.issn.1004-1524.2020.05.15

›› 2020, Vol. 32 ›› Issue (5): 866-877.DOI: 10.3969/j.issn.1004-1524.2020.05.15

• Environmental Science • Previous Articles Next Articles

Analysis into influencing factors of cultivated land productivity in Gao'an City based on structural equation model

LI Zilin, HAN Yi, GUO Xi^*, GUO Jiaxin, LIN Wenlu

Key Laboratory of Poyang Lake Watershed Agricultural Resources and Ecology of Jiangxi Province, School of Land Resource and Environment, Jiangxi Agricultural University, Nanchang 330045, China

Received:2019-11-14 Online:2020-05-25 Published:2020-05-29

Abstract

Abstract: In the present study, Gao'an City was selected as the research area. Based on 147 monitoring points, with cultivated land productivity, soil nutrients, farmland water conservancy, geological characters and soil properties as latent variables in the model, the structural equation modeling (SEM) was adopted to construct the influencing factors model of cultivated land productivity, and the main factors affecting the cultivated land productivity in Gao'an were discussed. The results showed that soil nutrients, farmland water conservancy and soil properties were the main influencing factors affecting cultivated land productivity, with direct or indirect positive effects. The degree of direct influence was ranked as soil nutrient (0.55)>soil properties (0.26)>farmland water conservancy (0.23). Geological characters had no direct impact on cultivated land productivity, but had indirectly impact by affecting soil nutrients. Slope was the only variable with negative effect on cultivated land productivity. The cultivated land productivity in Gao'an City was affected by many factors. Thus, it was recommended to achieve coordinated and sustainable regional food production by improving water conservancy facilities, strengthening the construction of farmland quality, as well as improving the quality of agricultural products to build the healthy productivity of cultivated land.

Key words: cultivated land productivity, food security, structural equation model, productivity calculation, Gao'an City

CLC Number:

S158
F301.21

LI Zilin, HAN Yi, GUO Xi, GUO Jiaxin, LIN Wenlu. Analysis into influencing factors of cultivated land productivity in Gao'an City based on structural equation model[J]. , 2020, 32(5): 866-877.

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Analysis into influencing factors of cultivated land productivity in Gao'an City based on structural equation model

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