{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,30]],"date-time":"2025-11-30T22:37:30Z","timestamp":1764542250017,"version":"build-2065373602"},"reference-count":53,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2023,4,25]],"date-time":"2023-04-25T00:00:00Z","timestamp":1682380800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["41971375","2019J0481","2021KJTD03"],"award-info":[{"award-number":["41971375","2019J0481","2021KJTD03"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Scientific Research Foundation of Yunnan Education Department","award":["41971375","2019J0481","2021KJTD03"],"award-info":[{"award-number":["41971375","2019J0481","2021KJTD03"]}]},{"name":"Science and Technology Innovation Team of \u201cSpatiotemporal Big Data Application Technology of Natural Resources\u201d","award":["41971375","2019J0481","2021KJTD03"],"award-info":[{"award-number":["41971375","2019J0481","2021KJTD03"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>In order to comprehensively and accurately evaluate the adsorption effect of Eichhornia crassipes planting on algae in water, this study used 131 cloudless Sentinel-2 images to monitor the scale and growth dynamics of Eichhornia crassipes planting in Caohai and its surrounding waters. Based on the single and multi-peak histogram characteristics of the NDWI image in the study area, the empirical threshold and the optimized histogram slope adaptive threshold (OHSAT) segmentation methods were respectively used and manual inspection was added to accurately segment the water bodies and Eichhornia crassipes. The results of the analysis of Eichhornia crassipes area, growth status (NDVI), water body algae density (NDVI), and their spatial\u2013temporal co-variation and trends show that the Eichhornia crassipes has a significant enrichment effect on algae, showing a significant decreasing trend of water bloom centered on it. The size and growth status of Eichhornia crassipes are inversely proportional to the water body NDVI, and reasonable harvesting plans based on these findings are expected to achieve optimized pollution control effects.<\/jats:p>","DOI":"10.3390\/rs15092260","type":"journal-article","created":{"date-parts":[[2023,4,25]],"date-time":"2023-04-25T04:27:02Z","timestamp":1682396822000},"page":"2260","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Impact Eichhornia crassipes Cultivation on Water Quality in the Caohai Region of Dianchi Lake Using Multi-Temporal Sentinel-2 Images"],"prefix":"10.3390","volume":"15","author":[{"given":"Jinxiang","family":"Shen","sequence":"first","affiliation":[{"name":"Department of Land and Spatial Information, Yunnan Land and Resources Vocational College, Kunming 652501, China"},{"name":"Engineering Center of Yunnan Education Department for Health Geological Survey & Evaluation, Kunming 652501, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ping","family":"He","sequence":"additional","affiliation":[{"name":"Kunming University, Kunming 650214, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiaoli","family":"Sun","sequence":"additional","affiliation":[{"name":"Department of Land and Spatial Information, Yunnan Land and Resources Vocational College, Kunming 652501, China"},{"name":"Engineering Center of Yunnan Education Department for Health Geological Survey & Evaluation, Kunming 652501, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhanfeng","family":"Shen","sequence":"additional","affiliation":[{"name":"Aerospace Information Research Institute Chinese Academy of Sciences, Beijing 100101, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rong","family":"Xu","sequence":"additional","affiliation":[{"name":"Department of Land and Spatial Information, Yunnan Land and Resources Vocational College, Kunming 652501, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,4,25]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Peters, N.E., Meybeck, M., and Chapman, D.V. 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