| 湘江流域土地利用多功能性评价及障碍因子识别 |
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| 引用本文： | 彭焕智,周国华,,崔树强,,尚 鹏.湘江流域土地利用多功能性评价及障碍因子识别[J].水土保持研究,2022,29(4):308-315. |
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| 作者姓名： | 彭焕智 周国华 崔树强 尚 鹏 |
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| 作者单位： | (1.湖南师范大学 地理科学学院, 长沙 410081; 2.湖南师范大学 地理空间大数据挖掘与应用湖南省重点实验室, 长沙 410081) |
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| 摘 要： | 为了促进湘江流域土地可持续利用,以湖南省湘江流域为研究区域,构建基于生产、生活以及生态功能的土地利用多功能性评价指标体系,采用改进TOPSIS模型评估湖南省湘江流域在2010—2018年土地利用多功能状况,采用障碍度模型识别影响土地利用多功能性提高的障碍因子,并提出了优化土地利用多功能的路径。结果表明:(1)湘江流域土地利用多功能总体上呈增强的趋势,其中生产功能和生活功能在增强,生态功能在减弱,2010—2018年土地利用多功能值由0.392 5增加到0.574 5,土地利用多功能程度经历了从中等到较强的过程;(2)2010—2013年,PM2.5浓度、第三产业产值、人口密度、人均社会消费品零售额等指标是制约土地利用多功能提升的主要障碍因子,2014—2018年单位面积生态系统服务价值、乡村从业人口、人均耕地面积、生境丰度指数等指标是制约土地利用多功能提升的主要障碍因子;(3)2010—2018年生态功能对湘江流域土地利用多功能性提高的制约在升高,生产和生活功能的制约在降低。湘江流域未来应优先保护生态用地,严格耕地保护,增加乡村从业人口,从而促进区域可持续发展。
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| 关 键 词： | 湘江流域 土地利用多功能 TOPSIS模型 障碍度模型 |
Evaluation and Obstacle Factor Identification of Multifunctionality of Land Use in Xiangjiang River Basin |
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| PENG Huanzhi,ZHOU Guohua,,CUI Shuqiang,,SHANG Peng.Evaluation and Obstacle Factor Identification of Multifunctionality of Land Use in Xiangjiang River Basin[J].Research of Soil and Water Conservation,2022,29(4):308-315. |
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| Authors: | PENG Huanzhi ZHOU Guohua CUI Shuqiang SHANG Peng |
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| Affiliation: | (1.College of Geographical Sciences, Hunan Normal University, Changsha 410081, China; 2.Hunan Key Laboratory of Geographic Big Data Mining and Application, Changsha 410081, China) |
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| Abstract: | In order to promote the sustainable use of land in the Xiangjiang River Basin, taking the Xiangjiang River Basin in Hunan Province as the research area, we constructed a land use multifunctionality evaluation index system based on production functions, living functions and ecological functions, and used the improved TOPSIS model to evaluate the multifunctional land use status of the Xiangjiang River Basin in Hunan Province from 2010 to 2018. The obstacle degree model was used to identify obstacle factors affecting the improvement of land use versatility, and then a path to optimize land use versatility was proposed. The results show that:(1)the land use multifunction of Xiangjiang River Basin presented an increasing trend on the whole, in which the production function and living function were strengthening, while the ecological function was weakening; from 2010 to 2018, the land use multifunction value increased from 0.392 5 to 0.574 5, and the degree of land use multifunction experienced a medium to strong process;(2)from 2010 to 2013, PM2.5 concentration, output value of tertiary industry, population density, per capita retail sales of social consumer goods were the main obstacles to land use multi-functional improvement; from 2014 to 2018, ecosystem service value per unit area, rural working population, per capita cultivated land area and habitat abundance index were the main obstacles to land use multi-function improvement;(3)from 2010 to 2018, the restriction of ecological function on the improvement of land use versatility in Xiangjiang River Basin was increasing, while the restriction of production and living function was decreasing. In the future, the Xiangjiang River basin should give priority to the protection of ecological land, strictly protect cultivated land, increase rural working population, so as to promote regional sustainable development. |
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| Keywords: | Xiangjiang River Basin multifunctional land use TOPSIS model obstacle degree model |
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