Monitoring stanja i strukture \u0161umskih zajednica na podru\u010dju NP \u201eKrka\u201c u 2023. godini proveo je Hrvatski \u0161umarski institut Jastrebarsko. Taj je projekt nastavak vi\u0161egodi\u0161njeg pra\u0107enja stanja \u0161uma na pet trajnih pokusnih ploha, razli\u010ditih \u0161umskih zajednica: sjemenja\u010da hrasta medunca u predjelu Stinice, sastojina hrasta crnike u predjelu Ma\u010dkovica, sastojina alepskog bora u predjelu \u017duri\u0107a brdo, poplavne \u0161ume poljskog jasena kod Manastira Krka i panja\u010da hrasta medunca u predjelu Donji Radi\u0107i.<\/p>\n
Inicijalnim istra\u017eivanjem tih \u0161umskih zajednica utvr\u0111eni su florni sastav i struktura osnovnih sastojinskih elemenata (vrsta drve\u0107a, broj stabala (N\/ha), temeljnica (m\u00b2\/ha), prosje\u010dni prsni promjer (cm)). Ti su parametri bitni za ocjenu ukupnog stanja \u0161umskih zajednica. Njihovo vi\u0161egodi\u0161nje pra\u0107enje daje uvid u razvoj \u0161umskih zajednica i mogu\u0107nost njihove prirodne obnove, s naglaskom na autohtone vrste drve\u0107a toga podru\u010dja. Na osnovi provedenih monitoringa utvr\u0111ena je visoka bioraznolikost \u0161umskih ekosustava Parka i definirane smjernice za njezino o\u010duvanje.<\/p>\n
Usporedba najzastupljenijih \u0161umskih zajednica u Parku pokazuje da se \u0161umske sastojine nalaze u progresiji, kako povr\u0161inski tako i brojem drve\u0107a glavnih vrsta i pove\u0107anjem vrijednosti svih strukturnih parametara. Primjerice, 2023. godine broj stabala poljskog jasena na podru\u010dju Manastira Krka iznosio je 1 091 po hektaru, s prosje\u010dnim prsnim promjerom od 17,8 cm, dok je taj broj 2018. iznosio 415 po hektaru, s prosje\u010dnim prsnim promjerom od 20,8 cm.<\/p>\n
Na odabranim plohama prati se utjecaj bioti\u010dkih i abioti\u010dkih \u010dinilaca, odnosno pojava biljnih bolesti i \u0161tetnika u Parku. Ukupno zdravstveno stanje \u0161uma po lokacijama ocijenjeno je kao dobro, s malim i pojedina\u010dnim napadima \u0161tetnika, tako da iz tih razloga za sada nisu potrebne mjere za\u0161tite. Preporu\u010duje se nastavak pra\u0107enja brojnosti \u0161tetnika jer bi gradacija tih vrsta mogla prouzro\u010diti \u0161tete u \u0161umskim zajednicama i naru\u0161iti zdravstveno stanje drve\u0107a.<\/p>\n
U \u0161umskoj zajednici hrasta medunca i bijelog graba na lokaciji Stinice postavljeni su ki\u0161omjeri. Analizom prikupljenih uzoraka ki\u0161nice (dvanaest uzoraka godi\u0161nje) prati se utjecaj zra\u010dnog one\u010di\u0161\u0107enja na \u0161umske zajednice. Kontinuirana mjerenja u pravilnim vremenskim razmacima omogu\u0107uju pra\u0107enje trenda i vezu iona dospjelih atmosferskim talo\u017eenjem. Rezultati analiza uzoraka ukazuju na to da u odre\u0111enim periodima dolazi do pove\u0107anog talo\u017eenja du\u0161ikovih i kiselih spojeva. Kriti\u010dna optere\u0107enja tim spojevima zasad nisu dosegnuta te se preporu\u010da nastavak mjerenja atmosferskih talo\u017eenja u \u0161umskim sastojinama.<\/p>\n
S ciljem za\u0161tite i o\u010duvanja \u0161uma kao va\u017ene sastavnice ovog za\u0161ti\u0107enog podru\u010dja, preporu\u010duje se daljnja provedba monitoringa \u0161umskih ekosustava i njihovih sastavnica, s naglaskom na detekcije eventualnih \u0161tetnika i biljnih bolesti i dono\u0161enje mjera njihova suzbijanja.<\/p>\n
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[en] In 2023, monitoring the state and structure of forest communities in Krka National Park was conducted by the Croatian Forestry Institute Jastrebarsko. This project is the continuation of a multi-year project to monitor the state of forests on five permanent experimental plots that encompass different forest communities: high forest of pubescent oak in the Stinice area, stand of holm oak in the Ma\u010dkovica area, stand of Aleppo pine in the \u017duri\u0107a Brdo area, floodplain forests of narrow-leaved ash near the Krka Monastery, and coppice wood of pubescent oak in the Donji Radi\u0107i area.<\/p>\n The initial research of these forest communities established the floral composition and structure of the basic stand elements (tree species, number of trees (per hectare), basal area (m\u00b2\/ha), average diameter at breast height (cm)). These parameters are important to assess the overall condition of forest communities. Their multi-year monitoring gives insight into the development of forest communities and their capability for natural regeneration, with special emphasis on the native tree species in this area. On the basis of the monitoring performed, it was established that the park ecosystems have high biodiversity, and guidelines for their conservation were defined.<\/p>\n A comparison of the most representative forest communities in the park showed that the forest stands are in progression, both in area and in the number of trees of main species, with increased values of all structural parameters. For example, in 2023, the number of trees of narrow-leaved ash in the Krka Monastery area was 1091 per hectare, with an average diameter at breast height (DBH) of 17.8 cm, as compared to 415 trees per hectare and an average DBH of 20.8 cm in 2018.<\/p>\n On the selected plots, the influence of biotic and abiotic factors is monitored, including the appearance of plant diseases and pests in the park. The overall state of forest health at these locations was assessed as good, with small and individual attacks by pests, and no special protection measures are currently required. It is recommended that the pest populations continue to be monitored, as a gradation of these species could cause damage to the forest communities and degrade the health condition of the trees.<\/p>\n In the forest community of pubescent oak and Oriental hornbeam at the location Stinice, rain meters were installed. An analysis of the collected rainwater samples (12 samples per year) tracks the influence of air pollution on the forest community. Continuous measurements at regular intervals enables us to monitor trends and the ratios of ions brought by atmospheric deposition. The analysis of samples indicates that in certain periods, there is an increased deposition of nitrogen and acidic compounds. At this time, these compounds have not reached a critical load level, though continued monitoring is recommended to measure the atmospheric deposition in the forest stands.<\/p>\n With the aim of protecting and conserving forests as important elements of this protected area, further monitoring of the forest ecosystems and their elements is recommended, with an emphasis on the detection of any possible pests or plant diseases and the adoption of measures to counter them.<\/p>\n <\/p> Nastavlja se vi\u0161egodi\u0161nje pra\u0107enje stanja \u0161umskih zajednica na podru\u010dju Nacionalnog parka \u201eKrka\u201c<\/p>\n","protected":false},"author":2,"featured_media":9576,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[45],"tags":[],"class_list":["post-9574","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-monitoring"],"_links":{"self":[{"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/posts\/9574","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/comments?post=9574"}],"version-history":[{"count":4,"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/posts\/9574\/revisions"}],"predecessor-version":[{"id":14056,"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/posts\/9574\/revisions\/14056"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/media\/9576"}],"wp:attachment":[{"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/media?parent=9574"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/categories?post=9574"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/tags?post=9574"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nMonitoring the state and structure of representative forest communities in Krka National Park<\/strong>
\nThe multi-year monitoring of the state of forest communities within Krka National Park continues<\/strong><\/p>\n<\/div>
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