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Mapping Highland Barley on the Qinghai–Tibet Combing Landsat OLI Data and Object-Oriented Classification Method

Author

Listed:
  • Weidong Ma

    (School of Geographical Science, Qinghai Normal University, Xining 810008, China)

  • Wei Jia

    (School of Geographical Science, Qinghai Normal University, Xining 810008, China)

  • Peng Su

    (School of Geographical Science, Qinghai Normal University, Xining 810008, China)

  • Xingyun Feng

    (Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China)

  • Fenggui Liu

    (School of Geographical Science, Qinghai Normal University, Xining 810008, China
    Academy of Plateau Science and Sustainability, Xining 810008, China)

  • Jing’ai Wang

    (Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
    Academy of Plateau Science and Sustainability, Xining 810008, China)

Abstract

In this paper, we use the extraction method of multi-factors fusion to extract the Highland barley cultivation area on Qinghai–Tibet Plateau. The study results indicate that: (1) the method (extracting through multi-factors fusion) is efficient during the extracting process and is highly accurate in extraction results. This extraction scheme allows for not only the spatial heterogeneity of different physical geographic units, but also the impact of multi-factors on crop cultivation; (2) according to our research, the total Highland barley cultivation area on Qinghai–Tibet Plateau is about 2.74 × 10 5 ha. Based on the statistics, we draw the first distribution map of the Highland barley cultivation area on Qinghai–Tibet Plateau, which upgrades its spatial distribution pattern from administrative unit to patch unit; (3) Highland barley in various divisions has a distinct spatial heterogeneity in elevation. On the whole, the Highland barley on the plateau is planted at an elevation of 2500–4500 m, up to 5200 m. Due to the impact of topography diversity, temperature, moisture, light, arable land and irrigation conditions, its cultivation area at the same elevation varies in different divisions.

Suggested Citation

  • Weidong Ma & Wei Jia & Peng Su & Xingyun Feng & Fenggui Liu & Jing’ai Wang, 2021. "Mapping Highland Barley on the Qinghai–Tibet Combing Landsat OLI Data and Object-Oriented Classification Method," Land, MDPI, vol. 10(10), pages 1-15, September.
    • Handle: RePEc:gam:jlands:v:10:y:2021:i:10:p:1022-:d:646120
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    Citations

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    Cited by:

    1. Weidong Ma & Wei Jia & Yuantao Zhou & Fenggui Liu & Jing’ai Wang, 2022. "Prediction of Suitable Future Natural Areas for Highland Barley on the Qinghai-Tibet Plateau under Representative Concentration Pathways (RCPs)," Sustainability, MDPI, vol. 14(11), pages 1-21, May.
    2. Linhao Zhang & Haiping Tang & Peijun Shi & Wei Jia & Luwei Dai, 2023. "Geographically and Ontologically Oriented Scoping of a Dry Valley and Its Spatial Characteristics Analysis: The Case of the Three Parallel Rivers Region," Land, MDPI, vol. 12(6), pages 1-17, June.
    3. Yuantao Zhou & Weidong Ma & Fenggui Liu & Jing’ai Wang, 2022. "Simulation and Evaluation of Hydrothermal Conditions in Crop Growth Period: A Case Study of Highland Barley in the Qinghai-Tibet Plateau," Sustainability, MDPI, vol. 14(10), pages 1-15, May.

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