Spatiotemporal dynamics and driving mechanism of eco-environmental quality in piedmont-oasis-desert ecotone based on long-term harmonized remote sensing ecological index- take Korla - Tiemenguan oasis in Xinjiang as an example
Eco-environmental quality is the basic premise of oasis socio-economic development. Clarifying the spatiotemporal dynamic pattern and evolution mechanism in the piedmont-oasis-desert ecotone is a basis for regional development. To solve this problem, the Korla- Tiemengguan piedmont-oasis-desert ecot...
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Elsevier
2025-06-01
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| Series: | Environmental and Sustainability Indicators |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2665972725000327 |
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| author | Junling He Xifeng Ju Chuqiao Han Liming Liu Haidong Zhang Saitiniyazi Adilai Chongbo Li |
| author_facet | Junling He Xifeng Ju Chuqiao Han Liming Liu Haidong Zhang Saitiniyazi Adilai Chongbo Li |
| author_sort | Junling He |
| collection | DOAJ |
| description | Eco-environmental quality is the basic premise of oasis socio-economic development. Clarifying the spatiotemporal dynamic pattern and evolution mechanism in the piedmont-oasis-desert ecotone is a basis for regional development. To solve this problem, the Korla- Tiemengguan piedmont-oasis-desert ecotone, located between the southern foot of the Tianshan Mountain and the northern edge of the Taklimakan Desert in Xinjiang, China, was selected in this study. Meanwhile, this study proposed an oasis remote sensing ecological index (ORSEI), which considered the influence of salinization and explored the spatiotemporal pattern with long-term harmonized Landsat. Secondly, the spatial patterns were identified by trend analysis, coefficient of variation, and spatiotemporal migration model. Finally, the explanatory power was quantified, and the evolution trend was further discussed. The results showed: (1) the ORSEI had a strong correlation with RSEI (R = 0.93), but the ORSEI had better performance in the ecotone and could reflect more details. (2) In spatial distribution, the mean ORSEI was 0.334, and the central oasis was better than the northern mountainous and the southern desert. Time series showed a fluctuating upward trend, the mean value increased from 0.203 in 1991 to 0.383 in 2020. (3) The improvement area was concentrated in the central area, accounting for 46.798%, and the fluctuation of the improvement area was high. The degraded and essential stable areas were located in the northern and the southern, accounting for about 25% of the total area, and the overall fluctuation was low. (4) The spatiotemporal distribution results from the joint action of natural and human factors, the key factors were temperature, precipitation, and socio-economic development level. This study can provide ideas and methods for ecological governance and basis for the implementation of ecological protection and restoration projects. |
| format | Article |
| id | doaj-art-53a6558bbbe1451da2ec64eae69385d0 |
| institution | Kabale University |
| issn | 2665-9727 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
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| series | Environmental and Sustainability Indicators |
| spelling | doaj-art-53a6558bbbe1451da2ec64eae69385d02025-01-31T05:12:24ZengElsevierEnvironmental and Sustainability Indicators2665-97272025-06-0126100611Spatiotemporal dynamics and driving mechanism of eco-environmental quality in piedmont-oasis-desert ecotone based on long-term harmonized remote sensing ecological index- take Korla - Tiemenguan oasis in Xinjiang as an exampleJunling He0Xifeng Ju1Chuqiao Han2Liming Liu3Haidong Zhang4Saitiniyazi Adilai5Chongbo Li6China Geological Survey Urumqi Comprehensive Survey Center on Natural Resources, Urumqi, 830057, Xinjiang, China; China University of Geosciences, Wuhan, 430074, Hubei, ChinaChina Geological Survey Urumqi Comprehensive Survey Center on Natural Resources, Urumqi, 830057, Xinjiang, China; Corresponding author.College of Geography and Remote Sensing Sciences, Xinjiang University, Urumqi, 830046, ChinaHubei Provincial Land Resources Library, Wuhan, 430071, Hubei, ChinaChina Geological Survey Urumqi Comprehensive Survey Center on Natural Resources, Urumqi, 830057, Xinjiang, ChinaChina Geological Survey Urumqi Comprehensive Survey Center on Natural Resources, Urumqi, 830057, Xinjiang, ChinaChina Geological Survey Urumqi Comprehensive Survey Center on Natural Resources, Urumqi, 830057, Xinjiang, ChinaEco-environmental quality is the basic premise of oasis socio-economic development. Clarifying the spatiotemporal dynamic pattern and evolution mechanism in the piedmont-oasis-desert ecotone is a basis for regional development. To solve this problem, the Korla- Tiemengguan piedmont-oasis-desert ecotone, located between the southern foot of the Tianshan Mountain and the northern edge of the Taklimakan Desert in Xinjiang, China, was selected in this study. Meanwhile, this study proposed an oasis remote sensing ecological index (ORSEI), which considered the influence of salinization and explored the spatiotemporal pattern with long-term harmonized Landsat. Secondly, the spatial patterns were identified by trend analysis, coefficient of variation, and spatiotemporal migration model. Finally, the explanatory power was quantified, and the evolution trend was further discussed. The results showed: (1) the ORSEI had a strong correlation with RSEI (R = 0.93), but the ORSEI had better performance in the ecotone and could reflect more details. (2) In spatial distribution, the mean ORSEI was 0.334, and the central oasis was better than the northern mountainous and the southern desert. Time series showed a fluctuating upward trend, the mean value increased from 0.203 in 1991 to 0.383 in 2020. (3) The improvement area was concentrated in the central area, accounting for 46.798%, and the fluctuation of the improvement area was high. The degraded and essential stable areas were located in the northern and the southern, accounting for about 25% of the total area, and the overall fluctuation was low. (4) The spatiotemporal distribution results from the joint action of natural and human factors, the key factors were temperature, precipitation, and socio-economic development level. This study can provide ideas and methods for ecological governance and basis for the implementation of ecological protection and restoration projects.http://www.sciencedirect.com/science/article/pii/S2665972725000327Eco-environmental qualityGoogle Earth EnginePiedmont-oasis-desert ecotoneOasis remote-sensing ecological indexDynamic Mechanisms |
| spellingShingle | Junling He Xifeng Ju Chuqiao Han Liming Liu Haidong Zhang Saitiniyazi Adilai Chongbo Li Spatiotemporal dynamics and driving mechanism of eco-environmental quality in piedmont-oasis-desert ecotone based on long-term harmonized remote sensing ecological index- take Korla - Tiemenguan oasis in Xinjiang as an example Environmental and Sustainability Indicators Eco-environmental quality Google Earth Engine Piedmont-oasis-desert ecotone Oasis remote-sensing ecological index Dynamic Mechanisms |
| title | Spatiotemporal dynamics and driving mechanism of eco-environmental quality in piedmont-oasis-desert ecotone based on long-term harmonized remote sensing ecological index- take Korla - Tiemenguan oasis in Xinjiang as an example |
| title_full | Spatiotemporal dynamics and driving mechanism of eco-environmental quality in piedmont-oasis-desert ecotone based on long-term harmonized remote sensing ecological index- take Korla - Tiemenguan oasis in Xinjiang as an example |
| title_fullStr | Spatiotemporal dynamics and driving mechanism of eco-environmental quality in piedmont-oasis-desert ecotone based on long-term harmonized remote sensing ecological index- take Korla - Tiemenguan oasis in Xinjiang as an example |
| title_full_unstemmed | Spatiotemporal dynamics and driving mechanism of eco-environmental quality in piedmont-oasis-desert ecotone based on long-term harmonized remote sensing ecological index- take Korla - Tiemenguan oasis in Xinjiang as an example |
| title_short | Spatiotemporal dynamics and driving mechanism of eco-environmental quality in piedmont-oasis-desert ecotone based on long-term harmonized remote sensing ecological index- take Korla - Tiemenguan oasis in Xinjiang as an example |
| title_sort | spatiotemporal dynamics and driving mechanism of eco environmental quality in piedmont oasis desert ecotone based on long term harmonized remote sensing ecological index take korla tiemenguan oasis in xinjiang as an example |
| topic | Eco-environmental quality Google Earth Engine Piedmont-oasis-desert ecotone Oasis remote-sensing ecological index Dynamic Mechanisms |
| url | http://www.sciencedirect.com/science/article/pii/S2665972725000327 |
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