杜孟鸿1
,付建新2
,郭文炯1*.汾河流域山水林田湖草生态系统服务价值
时空变化特征[J].海南师范大学学报自科版,2023,36(1):80-88 |
汾河流域山水林田湖草生态系统服务价值
时空变化特征 |
Temporal and Spatial Variation Characteristics of Service Value of Mountain-river-forest-farmland-lake-grass Ecosystem in Fenhe River Basin |
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DOI:10.12051/j.issn.1674-4942.2023.01.012 |
中文关键词: 山水林田湖草 生态系统服务价值 时空分异 汾河流域 |
英文关键词: mountain-river-forest-farmland-lake-grass ecosystem service value spatiotemporal differentiation Fenhe
River basin |
基金项目:山西省高等学校人文社会科学重点研究基地项目(2022J026);山西省高等学校科技创新计划项目(2020L0505);
山西省社科联重点课题研究项目(SSKLZDKT2022100);太原师范学院研究生教育创新项目(SYYJSYC-2221) |
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中文摘要: |
汾河是黄河的重要支流,汾河流域的生态保护和高质量发展需要精准把握山水林田湖
草动态变化及其生态系统服务价值时空分异规律。基于1980—2020年4期土地利用覆被变化遥
感监测数据,采用土地利用动态分析和价值当量因子评估等方法,以县域为单位对汾河流域山水
林田湖草生态系统服务价值时空变化规律进行研究。结果表明:1980—2000年汾河流域土地利用
变化缓慢,2000—2010年变化速度加快,2010—2020年变化速度又逐渐放缓,1980—2020年林地和
未利用土地增加幅度小,耕地和草地逐年减少,分别减少 996.55 km2和 725.85 km2
,水域减少
20.18%;转型迁移主要发生在 2000—2010 年,其他地类向城乡、工矿、居民用地迁移量最大,为
1 858.45 km2
,耕地和草地是山水林田湖草生态系统中转型迁移最活跃的地类;1980—2020年汾河
流域山水林田湖草生态系统服务价值减少18.34亿元,县域地均生态系统服务价值上游>中游>下
游,高值区集中在上中游,从动态变化看,流域内88.6%的县域生态系统服务价值均存在不同程度
的下降,其中,中下游变化幅度大,草地、耕地和水域大面积减少成为汾河流域生态系统服务价值
减少的主要原因。 |
英文摘要: |
Fenhe River is an important tributary of the Yellow River. The ecological protection and high-quality develop⁃
ment of Fenhe River basin rely on accurate controlling of the dynamic changes of mountain-river-forest-farmland-lakegrass and the temporal and spatial differentiation law of ecosystem service value. Based on the four periods of remote sens⁃
ing monitoring data of land use and cover change from 1980 to 2020, this paper studied the temporal and spatial change law
of service value of mountain-river-forest-farmland-lake-grass ecosystem in Fenhe River Basin by using the methods of land use dynamic analysis and value equivalent factor evaluation. The results showed that the land use change in Fenhe
River Basin was slow from 1980 to 2000, accelerated from 2000 to 2010, and gradually slowed down from 2010 to 2020.
From 1980 to 2020, the increase amplitude of woodland and unused land was small, while the cultivated land and grassland
decreased year by year, reducing by 996.55 km2
and 725.85 km2
respectively, and the water area decreased by 20.18%. The
transition and migration mainly occurred from 2000 to 2010, and the largest amount of migration from other land types to ur⁃
ban and rural areas, industrial and mining land, and residential land was the largest, which was 1 858.45 km2
. Arable land
and grassland were the most active types of mountain-river-forest-farmland-lake-grass. From 1980 to 2020, the ecosys⁃
tem service value of mountain-river-forest-farmland-lake-grass in Fenhe River Basin decreased by 1.834 billion yuan.
The average ecosystem service value of the county was upstream > midstream > downstream, and the high-value areas were
concentrated in the upstream and midstream. From the perspective of dynamic change, 88.6% of the County Ecosystem Ser⁃
vice Value in the basin decreased in different degrees. Among them, the change range of the middle and downstream was
large, and the large-scale reduction of grassland, cultivated land and water area became the main reason for the decrease of
ecosystem service value in Fenhe River Basin. |
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