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Système d'évaluation intégrée de la santé de l'espace écologique aquatique basé sur la technologie de télédétection

  • role： First author第一作者
  • Affiliation：

    State Key Laboratory of Remote Sensing Science, Advanced Interdisciplinary Institute of Satellite Applications, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China

    Beijing Engineering Research Center for Global Land Remote Sensing Products, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China

    Beijing Water Science and Technology Institute, Beijing 100048, China

  • Email：tao_gf@mail.bnu.edu.cn
  • Introduction：陶果丰，研究方向为生态遥感和植被定量遥感。E-mail： tao_gf@mail.bnu.edu.cn
TAO Guofeng123,  
  • Affiliation：

    Beijing Water Science and Technology Institute, Beijing 100048, China

XUE Wanlai3,  
  • Affiliation：

    State Key Laboratory of Remote Sensing Science, Advanced Interdisciplinary Institute of Satellite Applications, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China

    Beijing Engineering Research Center for Global Land Remote Sensing Products, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China

YUAN Bo12,  
  • Affiliation：

    Beijing Water Science and Technology Institute, Beijing 100048, China

LI Tianyu3,  
  • Affiliation：

    Beijing Water Science and Technology Institute, Beijing 100048, China

LI Wenzhong3,  
  • Affiliation：

    State Key Laboratory of Remote Sensing Science, Advanced Interdisciplinary Institute of Satellite Applications, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China

    Beijing Engineering Research Center for Global Land Remote Sensing Products, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China

LI Jie12,  
  • Affiliation：

    State Key Laboratory of Remote Sensing Science, Advanced Interdisciplinary Institute of Satellite Applications, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China

    Beijing Engineering Research Center for Global Land Remote Sensing Products, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China

ZHAO Linlin12,  
  • Affiliation：

    State Key Laboratory of Remote Sensing Science, Advanced Interdisciplinary Institute of Satellite Applications, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China

    Beijing Engineering Research Center for Global Land Remote Sensing Products, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China

CUI Yuran12,  
  • Affiliation：

    State Key Laboratory of Remote Sensing Science, Advanced Interdisciplinary Institute of Satellite Applications, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China

    Beijing Engineering Research Center for Global Land Remote Sensing Products, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China

XU Weiye12,  
  • Affiliation：

    Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China

WEI Xiangqin4,  
  • role： Corresponding author通信作者
  • Affiliation：

    State Key Laboratory of Remote Sensing Science, Advanced Interdisciplinary Institute of Satellite Applications, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China

    Beijing Engineering Research Center for Global Land Remote Sensing Products, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China

  • Email：jiakun@bnu.edu.cn
  • Introduction：贾坤，研究方向为生态遥感和植被定量遥感。E-mail： jiakun@bnu.edu.cn
JIA Kun12*

résumé

L'évaluation scientifique et raisonnable de l'état de santé de l'espace écologique aquatique revêt une importance capitale pour protéger la structure centrale et les fonctions de service de l'écosystème aquatique. À l'heure actuelle, il existe peu de recherches globales sur l'évaluation des espaces écologiques aquatiques régionaux, et les problèmes liés au système d'indicateurs d'évaluation sont limités par les types d'indicateurs et par les observations terrestres. Par conséquent, cette étude repose sur une perspective satellitaire et a construit un système d'indicateurs d'évaluation de la santé de l'espace écologique aquatique de la ville de Beijing, couvrant de manière exhaustive la structure physique de l'espace écologique, les éléments hydrologiques et de qualité de l'eau, les éléments de végétation de rivage terrestre. Parallèlement, une pondération combinée des indicateurs objective et subjective a été réalisée par une analyse multicritère et par la méthode d'entropie pour créer un système d'évaluation à distance de la santé de l'espace écologique aquatique, et sur la base de l'indice d'évaluation global, l'espace écologique aquatique a été divisé en quatre niveaux, à savoir sain, bon, moyen, mauvais. Cette étude a effectué une évaluation complète de la santé de l'espace écologique aquatique pour dix types d'eau typiques de la ville de Beijing, tels que la rivière Yongding, le lac Yuanmingyuan, le lac Kunming et le réservoir Miyun, et les résultats ont montré que : (1) Le système d'évaluation est capable d'évaluer de manière raisonnable l'état de santé de l'espace écologique aquatique, avec les éléments hydrologiques et la qualité de l'eau ayant le plus grand impact sur la santé de l'espace écologique aquatique, suivis des éléments végétaux de la rive, et la structure physique de l'espace écologique ayant le moins d'impact que prévu ; (2) Pour dix eaux typiques de la ville de Beijing, la rivière Yongding et le lac Yuanmingyuan ont été évalués comme étant en bon état de santé, tandis que le reste des eaux ont été évaluées comme étant saines, et il est recommandé de réaliser à l'avenir une réhabilitation environnementale ciblée de la rivière Yongding et du lac Yuanmingyuan.

mots-clés

télédétection ; espace écologique aquatique ; évaluation de la santé ; système d'évaluation ; pondération des indicateurs ; Pékin ; Chine 2 ; construction d'indice d'évaluation global

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