REVIEW PAPER
Quantitative Evaluation and Path Analysis
of Factors Influencing the Cultivated-Layer
Quality of Red Soil Sloping Farmland Based
on the DPSIR Framework
1, 2 1 | College of Agriculture, Yangtze University, Jingzhou 434025, China |
2 | College of Resources and Environment, Southwest University, Chongqing 400715, China |
3 | Red Soil Institute of Jiangxi Province, Jinxian, Jiangxi,331717, China |
CORRESPONDING AUTHOR
Submission date: 2020-03-28
Final revision date: 2020-05-08
Acceptance date: 2020-05-14
Online publication date: 2020-09-16
Publication date: 2020-11-10
Pol. J. Environ. Stud. 2021;30(1):509–521
KEYWORDS
TOPICS
Physicochemical parametersDegradationCriteria analysisEnvironmental managementErosion phenomenaPolicies for socially sustainable developmentPolicies for environmentally sustainable development
ABSTRACT
Quantitative evaluations of the cultivated-layer quality (CLQ)of sloping farmland are important for
the effectively improving and rationally utilizing of the cultivated layers. Using a red soil watershed
as the research object, we quantitatively analysed the relationship among factors influencing the CLQ
using structural equation modeling based on the DPSIR framework (A framework for describing the
interactions between society and environment developed by the European Environmental Agency) to
describe the CLQ evolution process. We identified the key indicators of the driving factors (D) during
cultivated-layer degradation and critical environmental pressure (P) to construct a reasonable cultivatedlayer
(RCL) by principal component analysis (PCA). We defined the main CLQ diagnostic indicator set
to assess the CLQ by factor analysis and analysed the reasonable measures to improve the CLQ. The
results show quantified direct or reverse effects among D, P, state performance (S), problem impacts (I)
and response strategy (R). The contribution rates of D and P were affected by the comprehensive effects
of natural and human factors or human factors along. The CLQ diagnostic indicator set included 7
soil indicators and sub-soiling is the main adjusted measure for cultivated-layer recovery. These results
could provide important technological paths for objectively understanding the causes drivers of the
degradation and improving the CLQ for red soil sloping farmland.
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