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[1]YAN Huihui,GENG Qiming,LI Hang,et al.Arable Suitability, Constructive Suitability and Ecological Risk Comprehensive Evaluation of Unutilized Land in Guyuan County, Hebei Province[J].Research of Soil and Water Conservation,2019,26(01):360-367.

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Arable Suitability, Constructive Suitability and Ecological Risk Comprehensive Evaluation of Unutilized Land in Guyuan County, Hebei Province

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 26 Number of periods: 2019 01 Page number: 360-367 Column: Public date: 2019-02-28

Title:: Arable Suitability, Constructive Suitability and Ecological Risk Comprehensive Evaluation of Unutilized Land in Guyuan County, Hebei Province

Author(s):: YAN Huihui¹, GENG Qiming², LI Hang², ZHANG Li¹, HE Ling¹; 1. College of Land and Resources, Agricultural University of Hebei, Baoding, Hebei 071000, China;
2. College of Resources and Environment Science, Agricultural University of Hebei, Baoding, Hebei 071000, China

Keywords:: unutilized land resources; arable suitability; constructive suitability; ecological risk assessment; development function points; Guyuan County

CLC:: F301.24

DOI:: -

Abstract:: The shortage of land resources will have adverse effects on food security inevitably and affect the stability of the entire social life. Therefore, the remediation and development of unutilized land is a requirement of the times and an important measure for supplementing and ensuring land resources. By guiding the development and utilization of unutilized land scientifically, analyzing the arable suitability, constructive suitability and ecological risk of unused land, and evaluating synthetically the direction and function of its development and utilization zoning, and addressing the direction of land supply and demand conflicts are the focuses of land work. We analyzed the arable suitability, constructive suitability and ecological risk of unutilized land in Guyuan County of Hebei, and validated the multiple suitability evaluation results by coupling model and genetic algorithm comprehensive and preliminary delineation of the functional zoning of its land, which can provide reference for solving the problem of containment among multiple development directions, can also provide pre-effective demonstration of resource management for similar areas in the whole country. The results illustrated that:(1) the exploitation suitability of the arable unutilized land included four grades in Guyuan County, mostly the second-class cultivated unused land, mainly concentrated in northern and southwestern parts of the county; (2) the constructive suitability of the unutilized land has four grades, mostly the first-class constructive unused land, mainly concentrated in the north central area of the county; (3) unused land ecological risk assessment, can be divided into five levels, mostly low and medium ecological in the risk area, the ecological risk as a whole is high in the south and low in the north; (4) it can be divided into three kinds of key function partitions, cultivated land, construction land and ecological land in Guyuan County; most of the cultivated land functional areas are located in the northwest of the county; the functional areas for construction land are mainly located in the central part of the county; most of the functional areas for ecological land use are scattered south of the county.

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