Details of the Researcher

PHOTO

Muxiye
Section
Graduate School of Agricultural Science
Job title
Assistant Professor
Degree

  • Ph.D. in Agricultural Science (Tohoku University)

Research Interests 3

  • Paddy soil science

  • Geographical Information Science

  • Remote Sensing

Research Areas 2

  • Life sciences / Plant nutrition, soil science / Paddy soil science

  • Environmental science/Agricultural science / Environmental dynamics / Remote Sensing

Papers 1

  1. Multi-Temporal and Multiscale Satellite Remote Sensing Imagery Analysis for Detecting Pasture Area Changes after Grazing Cessation Due to the Fukushima Daiichi Nuclear Disaster Peer-reviewed

    Muxiye Muxiye, Chinatsu Yonezawa

    Remote Sensing　15　(22)　5416-5416　2023/11/18

    Publisher: MDPI AG

    DOI： 10.3390/rs15225416 　

    eISSN： 2072-4292

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    Despite advancements in remote sensing applications for grassland management, studies following the 2011 Fukushima Daiichi nuclear disaster have often been constrained by limited satellite imagery with insufficient focus on pasture changes. Utilizing different resolutions of optical satellite data is essential for monitoring spatiotemporal changes in grasslands. High resolutions provide detailed spatial information, whereas medium-resolution satellites offer an increased frequency and wider availability over time. This study had two objectives. First, we investigated the temporal changes in a mountainous pasture in Japan from 2007 to 2022 using high-resolution data from QuickBird, WorldView-2, and SPOT-6/7, along with readily available medium-resolution data from Sentinel-2 and Landsat-5/7/8. Second, we assessed the efficacy of different satellite image resolutions in capturing these changes. Grazing ceased in the target area after the 2011 Fukushima Daiichi nuclear accident owing to radiation. We categorized the images as grasses, broadleaf trees, and conifers. The results showed a 36% decline using high-resolution satellite image analysis and 35% using Landsat image analysis in the unused pasture area since grazing suspension in 2011, transitioning primarily to broadleaf trees, and relative stabilization by 2018. Tree encroachment was prominent at the eastern site, which has a lower elevation and steeper slope facing north, east, and south. WorldView-2 consistently outperformed Landsat-8 in accuracy. Landsat-8’s classification variation impedes its ability to capture subtle distinctions, particularly in zones with overlapping or neighboring land covers. However, Landsat effectively detected area reductions, similar to high-resolution satellites. Combining high- and medium-resolution satellite data leverages their respective strengths, compensates for their individual limitations, and provides a holistic perspective for analysis and decision-making.

Misc. 6

  1. Effects of Cultivation Methods on Paddy Rice Growth Observed by UAV-mounted Multispectral Camera

    MUXIYE, YONEZAWA Chinatsu, NISHIDA Mizuhiko, TAJIMA Ryosuke, YOKOYAMA Ryohei, OKADA Koharu, TAKAMURA Kouki, AMAYA Kaori, ICHIKAWA Ken

    Journal of Integrated Field Science (Web)　20　2023

    ISSN： 2434-4761

  2. Comparison of Vegetation Indices and Spectral Reflectance Observed by Two Types of UAV-mounted Multispectral Camera

    YOKOYAMA Ryohei, YONEZAWA Chinatsu, NISHIDA Mizuhiko, TAJIMA Ryosuke, MUXIYE, OKADA Koharu, TAKAMURA Kouki, AMAYA Kaori, ICHIKAWA Ken

    Journal of Integrated Field Science (Web)　20　2023

    ISSN： 2434-4761

  3. Observation of Spatio-Temporal Changes in Pasturelands Abstained from Grazing Using Optical Remote Sensing

    MUXIYE, 米澤千夏

    日本リモートセンシング学会学術講演会論文集(CD-ROM)　75th　2023

  4. Observation of Pasture after the Great East Japan Earthquake Using Optical Satellite Imagery

    MUXIYE, 米澤千夏

    復興農学会誌(Web)　2　(2)　2022

    ISSN： 2758-1160

  5. ALOS-3による水稲生育モニタリングの可能性の検討

    慕希叶, 米澤千夏, 西田瑞彦, 田島亮介, 横山亮平, 岡田胡春, 高村光輝, 天谷香織, 市川健

    システム農学会大会講演要旨集(CD-ROM)　2022　2022

  6. Change Detection Using Multi-Temporal Optical Satellite Imagery for Grassland Area in Kawatabi Filed Science Center, Tohoku University

    MUXIYE, YONEZAWA Chinatsu

    Journal of Integrated Field Science (Web)　17　2020

    ISSN： 2434-4761

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Presentations 10

  1. Single-Date and Cumulative UAV Vegetation Indices for Predicting Rice Forage Dry Matter

    Muxiye, Yuki SATO, Sachi YOSHIDA, Ryosuke TAJIMA, Mizuhiko NISHIDA

    The 23rd International Symposium on Integrated Field Science　2026/03/03

  2. 東北大学川渡地区における草地の経年変化と地形との関係について

    慕希叶, 米澤千夏

    2023年度東北支部研究交流会　2024/03/13

  3. 光学リモートセンシングによる放牧を自粛した牧草地の時空間変化の観測

    慕希叶, 米澤千夏

    日本リモートセンシング学会第75回学術講演会　2023/11/22

  4. 衛星リモートセンシングを用いた東日本大震災の影響による牧草地の変化抽出

    慕希叶, 米澤千夏

    東日本大震災・原子力災害学術研究集会　2023/03/17

  5. Comparison of Vegetation Indices and Spectral Reflectance Observed by Two Types of UAV-mounted Multispectral Camera

    Ryohei YOKOYAMA, Chinatsu YONEZAWA, Mizuhiko NISHIDA, Ryosuke TAJIMA, Muxiye, Koharu OKADA, Kouki TAKAMURA, Kaori AMAYA, Ken ICHIKAWA

    The 20th International Symposium of the Integrated Field Science Center　2022/11/23

  6. Effects of Cultivation Methods on Paddy Rice Growth Observed by UAV-Mounted Multispectral Camera

    Muxiye, Chinatsu, YONEZAWA, Mizuhiko NISHIDA, Ryosuke TAJIMA, Ryohei YOKOYAMA, Koharu OKADA, Kouki TAKAMURA, Kaori AMAYA, Ken ICHIKAWA

    The 20th International Symposium on Integrated Field Science　2022/11/23

  7. ALOS-3 による水稲生育モニタリングの可能性の検討

    慕希叶, 米澤千夏, 西田瑞彦, 田島亮介, 横山亮平, 岡田胡春, 高村光輝, 天谷香織, 市川健

    システム農学会2022年度大会　2022/10/29

  8. ANALYSIS OF TIME SERIES SATELLITE IMAGES FOR PASTURE AREA IN KAWATABI FIELD SCIENCE CENTER, OSAKI CITY, JAPAN

    Muxiye, Chinatsu YONEZAWA

    The 43rd Asian Conference on Remote Sensing 2022 (ACRS 2022)　2022/10/04

  9. 光学衛星画像による東日本大震災後の牧草地の観測

    慕希叶, 米澤千夏

    2021年度復興農学研究会　2022/03/18

  10. 人工衛星リモートセンシングによる宮城県大崎市川渡地区の草地面積の時系列変化

    慕希叶, 米澤千夏

    2019 年度東北地理学会春季学術大会　2019/05/18

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