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| 基于生态系统服务功能的伊犁河流域农业土壤质量时空变化特征 |
| Spatio-temporal variation characteristics of agricultural soil quality in the Ili River basin on the basis of ecosystem service functions |
| 投稿时间：2023-12-07 |
| DOI：10.13254/j.jare.2023.0792 |
| 中文关键词: 生态系统服务，土壤质量，时空变化，伊犁河流域 |
| 英文关键词: ecosystem service, soil quality, spatio-temporal variation, Ili River basin |
| 基金项目:国家自然科学基金联合基金项目（U22A20562） |
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| 中文摘要: |
| 分析土壤质量的时空变化特征、构建基于生态系统服务功能的土壤质量评价体系，对于确保土壤质量在维护土地生产力、环境质量以及保障人类健康等方面至关重要。本研究通过构建基于生态系统服务功能的土壤质量评价指标体系，利用土壤质量等级、土壤质量指数（SQI）以及土壤功能状况等对伊犁河流域农业土壤质量进行综合评价，并综合分析了1990—2020年土壤质量的时空变化特征。结果表明：1990—2020年伊犁河流域农业土壤质量整体向好发展，主要表现为土壤质量等级以优（土壤质量总体得分80~100）和良（土壤质量总体得分60~80）为主，优等级土壤占比增长31.15个百分点；伊宁市、霍城县和霍尔果斯市等县市的SQI随年限增长而增加；栖息地与多样性、养分供应和循环、作物生产、碳固存以及净水与调节功能得分均有所上升，分别增长0.26、0.19、0.15、0.14和0.12。研究表明，相较于传统评价方式，本研究构建的基于生态系统服务功能的土壤质量评价体系有利于动态反映土壤质量变化和全面评价土壤功能。 |
| 英文摘要: |
| It is important to analyze the characteristics of temporal and spatial changes in soil quality and construct a soil quality evaluation system based on ecosystem service function to ensure the role of soil quality in maintaining land productivity and environmental quality and safeguarding human health. In this study, using a soil quality evaluation index system based on ecosystem service function, grades for soil quality, soil quality index（SQI）, and soil function were used to comprehensively evaluate soil quality and analyze the spatio-temporal variation characteristics of soil quality in Ili River Basin from 1990 to 2020. Overall, the results showed that the agricultural soil quality of the Ili River Basin was improving; the grades of soil quality were mainly excellent [80, 100] and good [60, 80）, with excellent grade soil increasing by 31.15 percentage points. SQI increased with time in the past 30 years in Yining City, Huocheng County, Horgos City, etc. Scores of functions for maintaining habitats and biodiversity, nutrient supply and circulation, crop production, carbon sequestration, and water purification and regulation increased by 0.26, 0.19, 0.15, 0.14, and 0.12, respectively. In addition, when compared with traditional evaluation methods, the soil quality evaluation system based on ecosystem service function was helpful for dynamically reflecting the changes in soil quality and comprehensively evaluating soil functions. |
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