{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,9,13]],"date-time":"2024-09-13T07:17:55Z","timestamp":1726211875405},"reference-count":84,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2020,4,20]],"date-time":"2020-04-20T00:00:00Z","timestamp":1587340800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"ForestValue ERA-NET","award":["N\u00b0 773324"]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"Climate change and severe extreme events, i.e., changes in precipitation and higher drought frequency, have a large impact on forests. In Poland, particularly Norway spruce and Scots pine forest stands are exposed to disturbances and have, thus experienced changes in recent years. Considering that Scots pine stands cover approximately 58% of forests in Poland, mapping these areas with an early and timely detection of forest cover changes is important, e.g., for forest management decisions. A cost-efficient way of monitoring forest changes is the use of remote sensing data from the Sentinel-2 satellites. They monitor the Earth\u2019s surface with a high temporal (2\u20133 days), spatial (10\u201320 m), and spectral resolution, and thus, enable effective monitoring of vegetation. In this study, we used the dense time series of Sentinel-2 data from the years 2015\u20132019, (49 images in total), to detect changes in coniferous forest stands dominated by Scots pine. The simple approach was developed to analyze the spectral trajectories of all pixels, which were previously assigned to the probable forest change mask between 2015 and 2019. The spectral trajectories were calculated using the selected Sentinel-2 bands (visible red, red-edge 1\u20133, near-infrared 1, and short-wave infrared 1\u20132) and selected vegetation indices (Normalized Difference Moisture Index, Tasseled Cap Wetness, Moisture Stress Index, and Normalized Burn Ratio). Based on these, we calculated the breakpoints to determine when the forest change occurred. Then, a map of forest changes was created, based on the breakpoint dates. An accuracy assessment was performed for each detected date class using 861 points for 46 classes (45 dates and one class representing no changes detected). The results of our study showed that the short-wave infrared 1 band was the most useful for discriminating Scots pine forest stand changes, with the best overall accuracy of 75%. The evaluated vegetation indices underperformed single bands in detecting forest change dates. The presented approach is straightforward and might be useful in operational forest monitoring.<\/jats:p>","DOI":"10.3390\/rs12081298","type":"journal-article","created":{"date-parts":[[2020,4,21]],"date-time":"2020-04-21T08:49:38Z","timestamp":1587458978000},"page":"1298","source":"Crossref","is-referenced-by-count":22,"title":["Continuous Detection of Small-Scale Changes in Scots Pine Dominated Stands Using Dense Sentinel-2 Time Series"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"http:\/\/orcid.org\/0000-0001-6783-3355","authenticated-orcid":false,"given":"Ewa","family":"Grabska","sequence":"first","affiliation":[{"name":"Department of Forest Resources Management, Faculty of Forestry, University of Agriculture, Al. 29 Listopada 46, 31-425 Krak\u00f3w, Poland"},{"name":"Institute of Geography and Spatial Management, Faculty of Geography and Geology, Jagiellonian University, Gronostajowa 7, 30-387 Krak\u00f3w, Poland"}]},{"ORCID":"http:\/\/orcid.org\/0000-0002-0170-8866","authenticated-orcid":false,"given":"Pawe\u0142","family":"Hawry\u0142o","sequence":"additional","affiliation":[{"name":"Department of Forest Resources Management, Faculty of Forestry, University of Agriculture, Al. 29 Listopada 46, 31-425 Krak\u00f3w, Poland"}]},{"ORCID":"http:\/\/orcid.org\/0000-0002-9568-5764","authenticated-orcid":false,"given":"Jaros\u0142aw","family":"Socha","sequence":"additional","affiliation":[{"name":"Department of Forest Resources Management, Faculty of Forestry, University of Agriculture, Al. 29 Listopada 46, 31-425 Krak\u00f3w, Poland"}]}],"member":"1968","published-online":{"date-parts":[[2020,4,20]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"698","DOI":"10.1016\/j.foreco.2009.09.023","article-title":"Climate change impacts, adaptive capacity, and vulnerability of European forest ecosystems","volume":"259","author":"Lindner","year":"2010","journal-title":"For. 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