{"id":10294,"date":"2024-04-09T22:47:33","date_gmt":"2024-04-09T20:47:33","guid":{"rendered":"https:\/\/geopard.tech\/?p=10294"},"modified":"2024-04-09T22:47:33","modified_gmt":"2024-04-09T20:47:33","slug":"kartoittaa-maailman-suolaisia-maaperia-kaukokartoitustekniikoilla","status":"publish","type":"post","link":"https:\/\/geopard.tech\/fin\/blog\/mapping-worlds-salted-soils-using-remote-sensing-technologies\/","title":{"rendered":"Maailman suolaisten maaperien kartoitus kaukokartoitustekniikoilla"},"content":{"rendered":"<p>Tutkijaryhm\u00e4 on kehitt\u00e4nyt tekniikan, joka mittaa maaper\u00e4n suolapitoisuutta maailmanlaajuisesti vaikuttavalla tarkkuudella, jopa 10 metrin tarkkuudella. T\u00e4m\u00e4 parannus vastaa kriittiseen tarpeeseen arvioida maaper\u00e4n suolapitoisuutta tarkasti, mik\u00e4 on merkitt\u00e4v\u00e4 ongelma, joka vaikuttaa maatalouden tuottavuuteen ja maaper\u00e4n terveyteen maailmanlaajuisesti.<\/p>\n<p>Maaper\u00e4n suolapitoisuus, er\u00e4\u00e4nlainen maaper\u00e4n huonontuminen, vaikuttaa yli miljardiin hehtaariin ymp\u00e4ri maailmaa ja vahingoittaa maatalouden tuottavuutta ja ymp\u00e4rist\u00f6n terveytt\u00e4. Aiemmat maaper\u00e4n suolapitoisuuden kartoittamiseen t\u00e4ht\u00e4\u00e4v\u00e4t yritykset ovat kohdanneet haasteita saatavilla olevien tietoaineistojen v\u00e4h\u00e4isen yksityiskohtaisuuden ja maaper\u00e4n suolapitoisuuden jatkuvien muutosten osoittamisen vaikeuksien vuoksi.<\/p>\n<p>N\u00e4m\u00e4 haasteet tiedostaen tutkimusryhm\u00e4 ryhtyi luomaan mallia, joka hy\u00f6dynt\u00e4\u00e4 Sentinel-1\/2-kuvia, ilmastodataa, maastotietoja ja edistyneit\u00e4 koneoppimisalgoritmeja. Heid\u00e4n tavoitteenaan oli arvioida maaper\u00e4n suolapitoisuutta viidell\u00e4 ilmastoalueella.<\/p>\n<p>Tulokset julkaistiin 28. maaliskuuta 2024 Journal of Remote Sensing -lehdess\u00e4. T\u00e4ss\u00e4 tutkimuksessa esitell\u00e4\u00e4n innovaatio, joka yhdist\u00e4\u00e4 tehokkaasti kulmikkaat spiraalimaiset kanavat jaksollisiin supistumis-laajenemismatriiseihin.<\/p>\n<p><img data-recalc-dims=\"1\" fetchpriority=\"high\" decoding=\"async\" data-attachment-id=\"10301\" data-permalink=\"https:\/\/geopard.tech\/fin\/blog\/mapping-worlds-salted-soils-using-remote-sensing-technologies\/global-soil-salinity-estimation-at-10-m-using-multi-source-remote-sensing\/\" data-orig-file=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2024\/04\/Global-Soil-Salinity-Estimation-at-10-m-Using-Multi-Source-Remote-Sensing.jpg?fit=1280%2C626&amp;ssl=1\" data-orig-size=\"1280,626\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Global Soil Salinity Estimation at 10 m Using Multi-Source Remote Sensing\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2024\/04\/Global-Soil-Salinity-Estimation-at-10-m-Using-Multi-Source-Remote-Sensing.jpg?fit=1024%2C501&amp;ssl=1\" class=\"aligncenter wp-image-10301 size-full\" src=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2024\/04\/Global-Soil-Salinity-Estimation-at-10-m-Using-Multi-Source-Remote-Sensing.jpg?resize=810%2C396&#038;ssl=1\" alt=\"Maailmanlaajuinen maaper\u00e4n suolapitoisuuden arviointi 10 metrin p\u00e4\u00e4ss\u00e4 monil\u00e4hteisen kaukokartoituksen avulla\" width=\"810\" height=\"396\" srcset=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2024\/04\/Global-Soil-Salinity-Estimation-at-10-m-Using-Multi-Source-Remote-Sensing.jpg?w=1280&amp;ssl=1 1280w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2024\/04\/Global-Soil-Salinity-Estimation-at-10-m-Using-Multi-Source-Remote-Sensing.jpg?resize=300%2C147&amp;ssl=1 300w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2024\/04\/Global-Soil-Salinity-Estimation-at-10-m-Using-Multi-Source-Remote-Sensing.jpg?resize=1024%2C501&amp;ssl=1 1024w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2024\/04\/Global-Soil-Salinity-Estimation-at-10-m-Using-Multi-Source-Remote-Sensing.jpg?resize=768%2C376&amp;ssl=1 768w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2024\/04\/Global-Soil-Salinity-Estimation-at-10-m-Using-Multi-Source-Remote-Sensing.jpg?resize=1200%2C587&amp;ssl=1 1200w\" sizes=\"(max-width: 810px) 100vw, 810px\" \/><\/p>\n<p>T\u00e4m\u00e4n ty\u00f6n ytimess\u00e4 on eri kaukokartoitusteknologioista, erityisesti kehittyneist\u00e4 Sentinel-1\/2-satelliiteista, saatavan datan integrointi yhdistettyn\u00e4 koneoppimisalgoritmien strategiseen hy\u00f6dynt\u00e4miseen. T\u00e4m\u00e4 l\u00e4hestymistapa on johtanut edistyneen mallin kehitt\u00e4miseen, joka pystyy kartoittamaan maaper\u00e4n suolapitoisuuden huomattavalla tarkkuudella \u2013 10 metrin tarkkuudella, jopa erilaisissa ilmastoissa.<\/p>\n<p>T\u00e4m\u00e4 uraauurtava menetelm\u00e4 vie meid\u00e4t paljon aiempien hankkeiden rajoitusten ulkopuolelle, joita rajoittivat niiden alhaisempi resoluutio ja kapeampi keskittyminen maaper\u00e4n suolapitoisuuden analysointiin. Sitoutunut tutkimusryhm\u00e4mme on koonnut laajan tietoaineiston, joka kattaa maailmanlaajuiset ilmastomallit, tarkat maaper\u00e4n suolapitoisuuden mittaukset maanpinnan tasolla ja kattavan valikoiman paikkatietomuuttujia.<\/p>\n<p>K\u00e4ytt\u00e4m\u00e4ll\u00e4 Random Forest -algoritmia malli ei ainoastaan ennusta maaper\u00e4n suolapitoisuutta huomattavan tarkasti, vaan se my\u00f6s valaisee ilmaston, pohjaveden pinnan ja suolapitoisuusindeksien keskeist\u00e4 roolia maaper\u00e4n suolapitoisuuksien muodostumisessa. T\u00e4m\u00e4 edistysaskel on askel eteenp\u00e4in kyvyss\u00e4mme seurata ja hallita maaper\u00e4n terveytt\u00e4 maailmanlaajuisesti.<\/p>\n<p>Tutkimuksen p\u00e4\u00e4tutkija, professori Zhou Shi, totesi: \u201cT\u00e4m\u00e4 tutkimus edustaa merkitt\u00e4v\u00e4\u00e4 edistysaskelta kyvyss\u00e4mme arvioida ja k\u00e4sitell\u00e4 maaper\u00e4n suolapitoisuutta maailmanlaajuisesti. Yhdist\u00e4m\u00e4ll\u00e4 satelliittikuvat koneoppimiseen voimme nyt paikantaa suolapitoiset maaper\u00e4t vertaansa vailla olevalla tarkkuudella ja rakeisuudella, mik\u00e4 tarjoaa arvokasta tietoa kest\u00e4vist\u00e4 maank\u00e4yt\u00f6n ja maatalousk\u00e4yt\u00e4nn\u00f6ist\u00e4.\u201d<\/p>\n<p>Uusin tutkimus on tuottanut tarkan maailmanlaajuisen maaper\u00e4n suolapitoisuuskartan. T\u00e4m\u00e4 kartta on arvokas ty\u00f6kalu niin tiedemiehille, p\u00e4\u00e4tt\u00e4jille kuin maanviljelij\u00f6illekin. Se auttaa heit\u00e4 tehokkaasti puuttumaan maaper\u00e4n suolapitoisuuteen liittyviin ongelmiin. Paikantamalla korkean suolapitoisuuden alueet he voivat toteuttaa kohdennettuja toimia maaper\u00e4n terveyden palauttamiseksi.<\/p>\n<p>Lis\u00e4ksi se tukee kest\u00e4vien maatalousk\u00e4yt\u00e4nt\u00f6jen toteuttamista ja auttaa luonnonvarojen hallintastrategioiden suunnittelussa. Lis\u00e4ksi t\u00e4ss\u00e4 tutkimuksessa k\u00e4ytetty menetelm\u00e4 asettaa uuden standardin ymp\u00e4rist\u00f6n seurannalle, ja sill\u00e4 on potentiaalisia sovelluksia muissa maaper\u00e4n huonontumisen arvioinneissa.<\/p>\n<hr \/>\n<p><strong>Lis\u00e4tietoja<\/strong>Nan Wang ym., Maaper\u00e4n suolapitoisuuden maailmanlaajuinen arviointi 10 metrin syvyydess\u00e4 k\u00e4ytt\u00e4en monil\u00e4hteist\u00e4 kaukokartoitusta, Journal of Remote Sensing (2024). DOI: 10.34133\/remotesensing.0130<\/p>","protected":false},"excerpt":{"rendered":"<p>Tutkijaryhm\u00e4 on luonut tekniikan, joka mittaa maaper\u00e4n suolapitoisuutta maailmanlaajuisesti vaikuttavalla tarkkuudella, jopa 10 metrin tarkkuudella. T\u00e4m\u00e4\u2026<\/p>","protected":false},"author":210157960,"featured_media":10296,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_eb_attr":"","content-type":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_wpcom_ai_launchpad_first_post":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"{title}\n\n{excerpt}\n\n{url}","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_wpas_customize_per_network":false,"jetpack_post_was_ever_published":false},"categories":[1378],"tags":[],"class_list":["post-10294","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-remote-sensing"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Mapping World\u2019s Salted Soils Using Remote Sensing Technologies - GeoPard Agriculture<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/geopard.tech\/fin\/blogi\/kartoittaa-maailman-suolaisia-maaperia-kaukokartoitustekniikoilla\/\" \/>\n<meta property=\"og:locale\" content=\"fi_FI\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Mapping World\u2019s Salted Soils Using Remote Sensing Technologies - GeoPard Agriculture\" \/>\n<meta property=\"og:description\" content=\"A team of researchers has created a technique that measures the soil salt content across the globe with impressive precision, down to 10 meters. 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