Analysis study on the change of orchard area in Alar reclamation in the past 30 years
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View abstract on PubMed
Summary
This summary is machine-generated.Orchard areas in Alar Reclamation continuously expanded from 1990-2019, increasing water conflicts and soil salinization. This land use change threatens the oasis ecosystem
Area Of Science
- Remote Sensing
- Ecology
- Land Use Change
Background
- Monitoring orchard area changes is crucial for ecological management and land resource planning.
- The Alar Reclamation Area in Xinjiang has experienced significant land use transformations.
Purpose Of The Study
- To analyze the temporal and spatial dynamics of orchard area changes in the Alar Reclamation Area from 1990 to 2019.
- To assess the impact of orchard expansion on the regional ecological environment.
Main Methods
- Utilized 30 scenes of Landsat remote sensing images from 1990-2019.
- Applied a support vector machine classification method for accurate land cover analysis.
- Analyzed changes in orchard area, type transformation, and spatial dynamics.
Main Results
- Orchard area in Alar Reclamation increased from 417.57 km² (10.17%) in 1990 to 1091.76 km² (26.59%) in 2019.
- Significant land transfers occurred: 860.38 km² transferred out (mainly to arable land) and 1,534.58 km² transferred in (mainly from unused land).
- Orchard expansion intensified water-use conflicts and exacerbated soil salinization, threatening the oasis ecosystem's sustainability.
Conclusions
- The study provides accurate mapping of orchard changes with high classification accuracy (Overall Accuracy: 87.97%).
- Continuous orchard expansion presents ecological challenges, including water scarcity and soil degradation.
- Sustainable land management strategies are needed to balance agricultural development with ecological preservation in the region.
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