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  • Ný grein í tímaritinu IAS

    Ný grein í tímaritinu IAS

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    Í byrjun nóvember birtist greinin UAV Data Upscaling for Soil Erosion Monitoring in High-Latitude Rangelands, Northeastern Iceland í íslenska vísindatímaritinu Icelandic Agricultural and Environmental Sciences (áður einnig þekkt sem Búvísindi).

    Í greininni var stuðst við gögn GróLindar til að skoða möguleika þess að nota flygildi (UAV, Unoccupied Aerial Vehicle) til að meta landupplýsingar og kortleggja t.d. jarðvegsrof. Bryndís Marteinsdóttir og Rán Finnsdóttir eru meðhöfundar. Íslenskur útdráttur er eftirfarandi:

    Uppskölun fjarkönnunargagna frá flygildum til að fylgjast með jarðvegsrofi á norð austur hálendi Íslands.

    Jarðvegsrof er eitt af stóru umhverfisvandamálum á Íslandi í dag og hefur hraði og alvarleiki jarðvegsrofs sterk tengsl við gróðurþekju. Núverandi aðferðir við kortlagningu og vöktun jarðvegsrofs á Íslandi eru kostnaðarsamar og erfitt er að beita þeim reglulega á stór svæði. Fjarkönnun með gervitunglamyndum getur veitt heildstæða mynd af ástandi gróðurs sem getur nýst við umhverfisvöktun. Hins vegar getur verið erfitt að greina smágerðar rofmyndir, eins og rofdíla, í venjulegri upplausn gervitunglamynda (10-30 m). Í þessari rannsókn er samþætt notkun flygilda (e. Unoccupied Aerial Vehicle, UAV), Sentinel-2 gervitunglagagna og vettvangsgagna skoðuð sem möguleiki til að brúa bilið á milli athugana á jörðu niðri og gervitunglaathugana. Landþekja sex svæða var kortlögð í hárri upplausn (< 5 cm) með flygildi og gáfu niðurstöðurnar góða heildarnákvæmni (e. accuracy, >90%) samanborið við vettvangsmælingar. Þessar upplýsingar voru síðan skalaðar upp fyrir gervitunglagögn með aðhvarfslíkani (e. regression model) til að meta þekju óvarins jarðvegs, með góðum árangri (R2 = 0.81). Með notkun gagna úr landvöktunarkerfinu GróLind voru rofflokkar svo skilgreindir og kortlagðir út frá þekju óvarins jarðvegs. Rannsóknin sýnir fram á möguleikann á notkun fjölkvarða-fjarkönnunar til að meta landupplýsingar út frá myndeiningum og að sjálfvirknivæða kortlagningu jarðvegsrofs.

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  • Ársskýrslur 2023 og 2022

    Ársskýrslur 2023 og 2022

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    Út eru komnar árskýrslur fyrir árin 2022 og 2023.
    Markmið þeirra er að gefa greinargóða en um leið aðgengilega yfirsýn yfir starfsemi GróLindar á hverju ári.

    Árskýrsluna fyrir árið 2022 má sjá hér.

    Árskýrsluna fyrir árið 2023 má sjá hér.

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  • Ársskýrsla GróLindar 2021

    Ársskýrsla GróLindar 2021

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    Ársskýrsla GróLindar 2021

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    21.02.2021. Starfsfólk GróLindar hefur ritað ársskýrslu fyrir árið 2021, þar sem farið er yfir það sem var gert á árinu og hvað árið 2022 ber í skauti sér. Hana má lesa hér.

    Sumarið 2021 var lagður út 171 vöktunarreitur víðsvegar um landið, en stefnt er að því að setja upp rösklega 1000 vöktunarreiti á næstu árum. Aðferðir þar sem landnotendur og aðrir geta tekið þátt í vöktun á sínum löndum með hjálp snjallforrits í síma voru prófaðir á árinu. Árið 2022 er gert ráð fyrir að hefja þá vöktun formlega. Í framtíðinni mun ástandsmat GróLindar byggja á samþættingu ofangreindra mælinga og fjarkönnunar.
    Unnið var að því á árinu að safna upplýsingum til að bæta kortlagningu beitarlanda, en sú kortlagning verður uppfærð árið 2022. Sumarið 2021 héldu rannsóknir á atferli sauðfjár í sumarhögum áfram. Ljóst er að mjög miklar upplýsingar liggja nú þegar í þeim gögnum sem hafa safnast og munu þau m.a. gefa okkur innsýn í hvernig sauðfé nýtir beitarlönd sín og hvernig nýtingin breytist m.a. eftir ástandi og veðurfari.

    Mikil áhersla er lögð á að vinna verkefnið í góðu samstarfi við landnotendur, vísindasamfélagið og opinberar stofnanir. Á árinu hefur verkefnið verið kynnt með fyrirlestrum, í fjölmiðlum og á fundum.

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  • Sumarið 2020

    Sumarið 2020

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    Sumarið 2020

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    09.10.2020. Í sumar, frá júní fram í september, voru 150 vöktunarreitir GróLindar lagðir út víðsvegar um landið. Í hverri viku voru að jafnaði tvö þriggja manna teymi að störfum. Í heild komu 13 starfsmenn að vettvangsvinnunni í sumar, níu sumarstarfsmenn auk annars starfsfólks Landgræðslunnar.

    Vettvangsvinnan gekk afbragðs vel og því má að miklu leyti þakka skapgóðu og afkastamiklu sumarstarfsfólki sem vann sleitulaust allar 11 vikurnar. Þar að auki fylgdi góða veðrið teymunum nær alltaf eftir, en þess má geta að fullkomið veður fyrir vettvangsvinnu er vind- og regnlaust að mestu en ekki of heitt, 12-14°C – kannski eilítið kaldara en landinn óskar sér alla jafna yfir sumartímann. Ýmis dýr urðu á vegi okkar í og við vöktunarreiti, þ.á.m. kýr, kindur, hestar, rjúpur, hreindýr, árásargjarnir skúmar og kelnir hundar. Þar að auki heimsóttum við marga fallega og áhugaverða staði, s.s. Skaftafell, Fimmvörðuháls, Fjallabaksleiðir, Möðrudalsöræfi, Dynjandisheiði, Arnarvatnsheiði og ótal fleiri.

    Þeir reitir sem settir voru út í sumar eru hluti af vöktunarreitarkerfi GróLindar. Kerfið mun telja um 1000 reiti þegar uppsetningu þeirra líkur 2024. Staðsetning reitanna er valin með tilviljunarkenndum hætti  að uppfylltum nokkrum skilyrðum s.s. tengdum aðgengi í reitina og því að hlutfall reita í hverri vistgerð endurspeglar algengi vistgerðarinnar á landsvísu.  Auk þess eru vöktunarreitir ekki lagðir út í manngerðu landi s.s. framræstum og/eða ræktuðum túnum eða skógræktarsvæði. Þar sem staðsetning vöktunarreita er í einkalandi var haft samband við landeigendur og rætt við þá um útsetningu reitanna. Viðtökurnar voru oftast góðar og var gaman að heyra áhuga landeigenda á verkefninu.

    Í hverjum reit voru metnir þættir sem gefa til kynna hvert ástand gróður- og jarðvegsauðlindarinnar er. Þessir þættir eru t.d. jarðvegsgerð, jarðvegsdýpt, gróðurhæð, gróðurþekja, tegundasamsetning, jarðvegsrof og hrjúfleiki yfirborðs.

    Unnið verður að uppsetningu vöktunarreitanna næstu sumur og er áætlað að setja um 200 vöktunarreiti út á ári. Áætlað er að endurmæla hvern reit á 5 ára fresti sem hluti af vöktun á gróður- og jarðvegsauðlindum landsins.

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  • Landshlutakynningar

    Landshlutakynningar

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    Landshlutakynningar

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    24.06.2020. Miðvikudaginn 24. júní og fimmtudaginn 25. Júní bjóða aðstandendur GróLindar upp á opna umræðufundi og frekari fræðslu um stöðumat á ástanid lands og kortlagningu beitarlanda. Allls verða haldnir sjö fundir – einn fyrir hvern landshluta.

    Á þessum fundum getið þið fengið svör við þeim spurningum sem brenna á ykkur í tengslum við þessi tvö kort. Hægt er að skoða kortin, sem og aðferðafræðina, hér:

    https://grolind.is/kortavefsja/

    Við hvetjum alla til að horfa á kynninguna frá 18. júní fyrir fundinn (sjá https://www.youtube.com/watch?v=8BX_xlVerKg ).

    Umræðufundurinn fer fram á fjarfundarformi.
    Vesturland (Hvalfjörður að Dalabyggð) – 24. júní 2020 frá 10:30 til 11:30 og slóðin er hér: https://us02web.zoom.us/j/89191826514

    Vestfirðir (Dalabyggð til sunnanverða og norðanveðra vestfjarða) – 24. júní 2020 frá 13:00 til 14:00 og slóðin er hér: https://us02web.zoom.us/j/82167524469

    Norðurland vestra (Dalabyggð að Eyjafjarðarsýslu) – 24. júní 2020 frá 14:30 til 15:30 og slóðin er hér: https://us02web.zoom.us/j/81876578312

    Norðurland eystra (Eyjafjarðarsýsla að Vopnafjarðarheppi)- 24. júní 2020 frá 16:00 til 17:00 og slóðin er hér: https://us02web.zoom.us/j/86239878746

    Austurland (Vopnafjarðarhreppur að Djúpavogshreppi) – 25. júní 2020 frá 10:30 til 11:30 og slóðin er hér: https://us02web.zoom.us/j/89234653459

    Suðausturland (Djúpavogshreppur að Mýrdalshreppi) – 25. Júní 2020 frá 13:00 til 14:00 og slóðin er hér: https://us02web.zoom.us/j/89178377523

    Suðurland (Mýrdalshreppur að Reykjanesi – 25. júní 2020 frá 14:30 til 15:30 og slóðin er hér: https://us02web.zoom.us/j/86794104295

     

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  • Stöðumat á ástandi lands og kortlagning beitarsvæða

    Stöðumat á ástandi lands og kortlagning beitarsvæða

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    Sumarið 2019

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    12.06.2020. Fimmtudaginn 18. júní 13:00 verða kynntar niðurstöður GróLindar á annars vegar stöðumati á ástandi á landi og hinsvegar kortlagning beitilanda sauðfjár. Gögnin verða öllum opin í kortasjá að kynningu lokinni.

    Í stöðumati á ástandi lands voru notuð fyrirliggjandi gögn, vistgerðarkortlagning Náttúrufræðistofnunar Íslands og Rofkortlagning RALA. Gögnin voru unnin útf rá aðferðafræði okkar sem snýst um að meta virkni og stöðguleika vistkerfa með vísindalegum hætti. Við kortlagningu beitarlanda var upplýsingum safnað um raunveruleg beitarsvæði á landinu og um leið hvaða svæði eru ekki nýtt til sauðfjárbeitar. Upplýsingarnar voru fengnar frá fjölmörgum staðkunnugum aðilum um allt land s.s. fjallskilastjórum, bændum og öðrum.

    Þessar fyrsta kortlagningar eru á grófum kvarða en gefur engu að síður gott yfirlit yfir ástand gróður- og jarðvegsauðlindarinnar og beitarsvæði landsins. Á komandi árum verður ástandsmatið gert nákvæmara m.a. með mælireitum GróLindar og mælingum almennings. Kortlagning verður sömuleiðis gerð nákvæmari t.d. aukinni upplýsingasöfnun fyrir láglendissvæði, en fólk mun geta komið ábendingum á framfæri um villur sem má finna í kortinu.

    Fundurinn verður í opnu streymi og er slóðinn á fundinn hér: Horfa á  streymi fundar

    [/et_pb_text][/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.4.8″][et_pb_image src=”https://grolind.is/wp-content/uploads/2020/06/Publication1-980×493-1.jpg” title_text=”Publication1-980×493″ _builder_version=”4.4.8″ hover_enabled=”0″][/et_pb_image][/et_pb_column][/et_pb_row][/et_pb_section][et_pb_section fb_built=”1″ disabled_on=”on|on|off” _builder_version=”4.4.8″ global_module=”161″][et_pb_row column_structure=”1_4,1_4,1_4,1_4″ _builder_version=”4.4.8″][et_pb_column type=”1_4″ _builder_version=”4.4.8″][et_pb_image src=”https://grolind.is/wp-content/uploads/2020/06/landgraedslan_logo-07-150×150.png” title_text=”landgraedslan_logo-07″ _builder_version=”4.4.8″ width=”51%”][/et_pb_image][/et_pb_column][et_pb_column type=”1_4″ _builder_version=”4.4.8″][et_pb_image src=”https://grolind.is/wp-content/uploads/2020/06/Atvinnuvega_logo.png” title_text=”Atvinnuvega_logo” _builder_version=”4.4.8″ width=”88%”][/et_pb_image][/et_pb_column][et_pb_column type=”1_4″ _builder_version=”4.4.8″][et_pb_image src=”https://grolind.is/wp-content/uploads/2020/06/BI-logo-150×150.jpg” title_text=”BI-logo” _builder_version=”4.4.8″ width=”30%” custom_margin=”16px|||82px|false|false”][/et_pb_image][/et_pb_column][et_pb_column type=”1_4″ _builder_version=”4.4.8″][et_pb_image src=”https://grolind.is/wp-content/uploads/2020/06/LS_logo.jpg” title_text=”LS_logo” _builder_version=”4.4.8″ width=”91%” custom_margin=”23px||||false|false”][/et_pb_image][/et_pb_column][/et_pb_row][/et_pb_section][et_pb_section fb_built=”1″ admin_label=”Footer” _builder_version=”3.22″ background_color=”#151f33″ custom_padding=”80px||8vw||false” global_module=”89″ saved_tabs=”all”][et_pb_row column_structure=”1_4,1_4,1_4,1_4″ _builder_version=”3.25″][et_pb_column type=”1_4″ _builder_version=”3.25″ custom_padding=”|||” custom_padding__hover=”|||”][et_pb_text ul_type=”square” _builder_version=”4.4.8″ text_font=”||||||||” link_font=”||||||||” link_text_color=”#ffba5a” ul_font=”||||||||” quote_font=”||||||||” locked=”off”][/et_pb_text][/et_pb_column][et_pb_column type=”1_4″ _builder_version=”3.25″ custom_padding=”|||” custom_padding__hover=”|||”][et_pb_text ul_type=”square” _builder_version=”4.4.8″ text_font=”||||||||” link_font=”||||||||” link_text_color=”#ffba5a” ul_font=”||||||||” quote_font=”||||||||” locked=”off”][/et_pb_text][/et_pb_column][et_pb_column type=”1_4″ _builder_version=”3.25″ custom_padding=”|||” custom_padding__hover=”|||”][/et_pb_column][et_pb_column type=”1_4″ _builder_version=”3.25″ custom_padding=”|||” custom_padding__hover=”|||”][et_pb_social_media_follow _builder_version=”4.4.4″ border_radii=”on|50px|50px|50px|50px” border_width_all=”3px” border_color_all=”rgba(255,255,255,0.15)”][et_pb_social_media_follow_network social_network=”facebook” url=”https://www.facebook.com/Landgr%C3%A6%C3%B0slan-152069031521913/” _builder_version=”4.4.4″ background_color=”#3b5998″ custom_padding=”10px|10px|10px|10px|true|true” follow_button=”off” url_new_window=”on”]facebook[/et_pb_social_media_follow_network][et_pb_social_media_follow_network social_network=”instagram” url=”https://www.instagram.com/landgraedslan/?hl=en” _builder_version=”4.4.4″ background_color=”#ea2c59″ custom_padding=”10px|10px|10px|10px|true|true” follow_button=”off” url_new_window=”on”]instagram[/et_pb_social_media_follow_network][et_pb_social_media_follow_network social_network=”youtube” url=”https://www.youtube.com/channel/UCNysVYQxVE6Iw8oDzyGsMFA” _builder_version=”4.4.4″ background_color=”#a82400″ custom_padding=”10px|10px|10px|10px|true|true” follow_button=”off” url_new_window=”on”]youtube[/et_pb_social_media_follow_network][/et_pb_social_media_follow][/et_pb_column][/et_pb_row][/et_pb_section]
  • Sumarið 2019

    Sumarið 2019

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    Sumarið 2019

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    30.09.2019. Vettvangsvinna GróLindar hófst nú í sumar og voru þá settir út og mældir fyrstu vöktunarreitir GróLindar. Vöktunarreitirnir eru hryggjastykki verkefnsins þar sem þeir munu segja til um ástand og þróun íslenskra landvistkerfa.

    Í heild voru 76 vöktunareitir settir út og þeir þættir sem segja til um virkni vistkerfa voru metnir, sjá kortið hér að neðan. Þessir þættir eru t.a.m. gróðurhæð, fjölbreytni plöntutegunda, jarðvegsrof, yfirborðþekja gróðurs og hrjúfleiki yfirborðs. Vöktunarreitnir voru valdir með tilviljunarkenndum hætti en þurftu að uppfylla ákveðin skilyrði s.s. að vera minna en 1 km frá vegi eða slóða, vera á landi í almenningseigu, og lenda á fjölbreyttu gróðurlendi.

    Í heild komu 8 starfsmenn að vettvangsvinnunni á mismunandi tíma þó. Hver reitur tók eina til tvær klukustundir í mælingum og voru yfirleitt þriggja starfsmanna teymi í hverjum reit. Yfirleitt voru 2 þriggja manna teymi að störfum í hverri viku.

    Þegar á heildina litið gekk vettvangsvinna vonum framan og gefur góð fyrirheit um komandi sumur. Hér fyrir neðan má sjá kort sem sýnir staðsetningu vöktunarreitanna og nokkrar myndir af starfsmönnum við mælingar.

    [/et_pb_text][/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.4.8″][et_pb_image src=”https://grolind.is/wp-content/uploads/2020/06/brink.jpeg” title_text=”brink” _builder_version=”4.4.8″ hover_enabled=”0″][/et_pb_image][/et_pb_column][/et_pb_row][/et_pb_section][et_pb_section fb_built=”1″ disabled_on=”on|on|off” _builder_version=”4.4.8″ global_module=”161″][et_pb_row column_structure=”1_4,1_4,1_4,1_4″ _builder_version=”4.4.8″][et_pb_column type=”1_4″ _builder_version=”4.4.8″][et_pb_image src=”https://grolind.is/wp-content/uploads/2020/06/landgraedslan_logo-07-150×150.png” title_text=”landgraedslan_logo-07″ _builder_version=”4.4.8″ width=”51%”][/et_pb_image][/et_pb_column][et_pb_column type=”1_4″ _builder_version=”4.4.8″][et_pb_image src=”https://grolind.is/wp-content/uploads/2020/06/Atvinnuvega_logo.png” title_text=”Atvinnuvega_logo” _builder_version=”4.4.8″ width=”88%”][/et_pb_image][/et_pb_column][et_pb_column type=”1_4″ _builder_version=”4.4.8″][et_pb_image src=”https://grolind.is/wp-content/uploads/2020/06/BI-logo-150×150.jpg” title_text=”BI-logo” _builder_version=”4.4.8″ width=”30%” custom_margin=”16px|||82px|false|false”][/et_pb_image][/et_pb_column][et_pb_column type=”1_4″ _builder_version=”4.4.8″][et_pb_image src=”https://grolind.is/wp-content/uploads/2020/06/LS_logo.jpg” title_text=”LS_logo” _builder_version=”4.4.8″ width=”91%” custom_margin=”23px||||false|false”][/et_pb_image][/et_pb_column][/et_pb_row][/et_pb_section][et_pb_section fb_built=”1″ admin_label=”Footer” _builder_version=”3.22″ background_color=”#151f33″ custom_padding=”80px||8vw||false” global_module=”89″ saved_tabs=”all”][et_pb_row column_structure=”1_4,1_4,1_4,1_4″ _builder_version=”3.25″][et_pb_column type=”1_4″ _builder_version=”3.25″ custom_padding=”|||” custom_padding__hover=”|||”][et_pb_text ul_type=”square” _builder_version=”4.4.8″ text_font=”||||||||” link_font=”||||||||” link_text_color=”#ffba5a” ul_font=”||||||||” quote_font=”||||||||” locked=”off”][/et_pb_text][/et_pb_column][et_pb_column type=”1_4″ _builder_version=”3.25″ custom_padding=”|||” custom_padding__hover=”|||”][et_pb_text ul_type=”square” _builder_version=”4.4.8″ text_font=”||||||||” link_font=”||||||||” link_text_color=”#ffba5a” ul_font=”||||||||” quote_font=”||||||||” locked=”off”][/et_pb_text][/et_pb_column][et_pb_column type=”1_4″ _builder_version=”3.25″ custom_padding=”|||” custom_padding__hover=”|||”][/et_pb_column][et_pb_column type=”1_4″ _builder_version=”3.25″ custom_padding=”|||” custom_padding__hover=”|||”][et_pb_social_media_follow _builder_version=”4.4.4″ border_radii=”on|50px|50px|50px|50px” border_width_all=”3px” border_color_all=”rgba(255,255,255,0.15)”][et_pb_social_media_follow_network social_network=”facebook” url=”https://www.facebook.com/Landgr%C3%A6%C3%B0slan-152069031521913/” _builder_version=”4.4.4″ background_color=”#3b5998″ custom_padding=”10px|10px|10px|10px|true|true” follow_button=”off” url_new_window=”on”]facebook[/et_pb_social_media_follow_network][et_pb_social_media_follow_network social_network=”instagram” url=”https://www.instagram.com/landgraedslan/?hl=en” _builder_version=”4.4.4″ background_color=”#ea2c59″ custom_padding=”10px|10px|10px|10px|true|true” follow_button=”off” url_new_window=”on”]instagram[/et_pb_social_media_follow_network][et_pb_social_media_follow_network social_network=”youtube” url=”https://www.youtube.com/channel/UCNysVYQxVE6Iw8oDzyGsMFA” _builder_version=”4.4.4″ background_color=”#a82400″ custom_padding=”10px|10px|10px|10px|true|true” follow_button=”off” url_new_window=”on”]youtube[/et_pb_social_media_follow_network][/et_pb_social_media_follow][/et_pb_column][/et_pb_row][/et_pb_section]
  • Fundir GróLindar 2019

    Fundir GróLindar 2019

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    Fundir GróLindar 2019

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    13.05.2019. GróLind efndi til kynningar- og samráðsfunda um allt land í mars og apríl síðastliðnum. Markmið fundanna var að kynna GróLindarverkefnið, tilurð þess, markmið og helstu verkþætti og að fá innsýn og hugmyndir fundargesta til að nýta við frekari þróun þess. Fundirnir voru haldnir á 17 stöðum á landinu (sjá kort hér að ofan). Aðsókn á fundina var með ágætum, mismikil þó eftir landssvæðum en alls mættu 235 manns á fundina.

    Starfsfólk Landgræðslunnar er almennt ánægt með fundina og þann áhuga sem fundargestir sýndu verkefninu. Sköpuðust góðar umræður sem munu auka gildi og vægi verkefnisins, sérstaklega vorum við ánægð með þann áhuga sem fundargestir sýndu í að taka þátt í mælingum GróLindar. Er það einlæg von aðstandenda GróLindar að þar hafi tónninn verði sleginn fyrir löngu og farsælu samstarfi við vöktun á gróður- og jarðvegsauðlindum landsins.

    Vill starfsfólk landgræðslunnar þakka öllum þeim sem mættu á fundina fyrir komuna, fyrir þá sem sáu sér ekki fært að mæta mun upptaka af fyrirlestrinum birtast á vef GróLindar á næstunni.

    [/et_pb_text][/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.4.8″][et_pb_image src=”https://grolind.is/wp-content/uploads/2020/06/20190423_Staðsetning_bændafunda-1080×675-1.jpeg” title_text=”20190423_Staðsetning_bændafunda-1080×675″ _builder_version=”4.4.8″ hover_enabled=”0″][/et_pb_image][/et_pb_column][/et_pb_row][/et_pb_section][et_pb_section fb_built=”1″ disabled_on=”on|on|off” _builder_version=”4.4.8″ global_module=”161″][et_pb_row column_structure=”1_4,1_4,1_4,1_4″ _builder_version=”4.4.8″][et_pb_column type=”1_4″ _builder_version=”4.4.8″][et_pb_image src=”https://grolind.is/wp-content/uploads/2020/06/landgraedslan_logo-07-150×150.png” title_text=”landgraedslan_logo-07″ _builder_version=”4.4.8″ width=”51%”][/et_pb_image][/et_pb_column][et_pb_column type=”1_4″ _builder_version=”4.4.8″][et_pb_image src=”https://grolind.is/wp-content/uploads/2020/06/Atvinnuvega_logo.png” title_text=”Atvinnuvega_logo” _builder_version=”4.4.8″ width=”88%”][/et_pb_image][/et_pb_column][et_pb_column type=”1_4″ _builder_version=”4.4.8″][et_pb_image src=”https://grolind.is/wp-content/uploads/2020/06/BI-logo-150×150.jpg” title_text=”BI-logo” _builder_version=”4.4.8″ width=”30%” custom_margin=”16px|||82px|false|false”][/et_pb_image][/et_pb_column][et_pb_column type=”1_4″ _builder_version=”4.4.8″][et_pb_image src=”https://grolind.is/wp-content/uploads/2020/06/LS_logo.jpg” title_text=”LS_logo” _builder_version=”4.4.8″ width=”91%” custom_margin=”23px||||false|false”][/et_pb_image][/et_pb_column][/et_pb_row][/et_pb_section][et_pb_section fb_built=”1″ admin_label=”Footer” _builder_version=”3.22″ background_color=”#151f33″ custom_padding=”80px||8vw||false” global_module=”89″ saved_tabs=”all”][et_pb_row column_structure=”1_4,1_4,1_4,1_4″ _builder_version=”3.25″][et_pb_column type=”1_4″ _builder_version=”3.25″ custom_padding=”|||” custom_padding__hover=”|||”][et_pb_text ul_type=”square” _builder_version=”4.4.8″ text_font=”||||||||” link_font=”||||||||” link_text_color=”#ffba5a” ul_font=”||||||||” quote_font=”||||||||” locked=”off”]

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    [/et_pb_text][/et_pb_column][et_pb_column type=”1_4″ _builder_version=”3.25″ custom_padding=”|||” custom_padding__hover=”|||”][/et_pb_column][et_pb_column type=”1_4″ _builder_version=”3.25″ custom_padding=”|||” custom_padding__hover=”|||”][et_pb_social_media_follow _builder_version=”4.4.4″ border_radii=”on|50px|50px|50px|50px” border_width_all=”3px” border_color_all=”rgba(255,255,255,0.15)”][et_pb_social_media_follow_network social_network=”facebook” url=”https://www.facebook.com/Landgr%C3%A6%C3%B0slan-152069031521913/” _builder_version=”4.4.4″ background_color=”#3b5998″ custom_padding=”10px|10px|10px|10px|true|true” follow_button=”off” url_new_window=”on”]facebook[/et_pb_social_media_follow_network][et_pb_social_media_follow_network social_network=”instagram” url=”https://www.instagram.com/landgraedslan/?hl=en” _builder_version=”4.4.4″ background_color=”#ea2c59″ custom_padding=”10px|10px|10px|10px|true|true” follow_button=”off” url_new_window=”on”]instagram[/et_pb_social_media_follow_network][et_pb_social_media_follow_network social_network=”youtube” url=”https://www.youtube.com/channel/UCNysVYQxVE6Iw8oDzyGsMFA” _builder_version=”4.4.4″ background_color=”#a82400″ custom_padding=”10px|10px|10px|10px|true|true” follow_button=”off” url_new_window=”on”]youtube[/et_pb_social_media_follow_network][/et_pb_social_media_follow][/et_pb_column][/et_pb_row][/et_pb_section]

  • GróLindar fundir á Norðurlandi Vestra

    GróLindar fundir á Norðurlandi Vestra

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    GróLindar fundir á Norðurlandi Vestra

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    Kynningar- og samráðsfundarherferð GróLindar heldur áfram og nú er ferðinni heitið í Húnavatnssýslur og Skagafjörð á fimtudaginn næstkomandi. Í liðinni viku var farið um Vesturland og Vestfriði og eru aðstandendur GróLindar himinlifandi hvernig fundirnir tiltókust og þakka öllum þeim sem mættu kærlega fyrir skemmtilegar, áhugaverðar og ekki síst fróðlegar umræður um sjálfbæra landnýtingu, sauðfjárrækt og annað.

    Eins og kom fram að ofan verður ferðinni haldið á Norðurland Vestra á fimtudaginn, en tíma- og staðsetningar fundanna eru eftirfarandi:

    • Fimmtudagurinn 21. mars kl 14:00 – Félagsheimilið Víðihlíð, V-Húnavatnssýslu
    • Fimmtudagurinn 21. mars kl 20:00 – Menningarhúsið Miðgarður, Varmahlíð

    Vonast starfsfólk Landgræðslunnar til að heimafólk sjái sér fært að mæta og taka þátt í þróun verkefnisins.

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  • Áhrif sauðfjárbeitar á íslensk vistkerfi

    Áhrif sauðfjárbeitar á íslensk vistkerfi

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    Áhrif sauðfjárbeitar á íslensk vistkerfi

    [/et_pb_text][/et_pb_column][/et_pb_row][et_pb_row column_structure=”1_2,1_2″ _builder_version=”4.4.8″][et_pb_column type=”1_2″ _builder_version=”4.4.8″][et_pb_text _builder_version=”4.4.8″ hover_enabled=”0″]

    20.12.2017 / Áhrif sauðfjárbeitar á íslensk vistkerfi er ný grein, eftir Bryndísi Marteinsdóttur og tvo aðra höfunda, sem birtist nýlega í Icelandic Agricultural Science.

    Höfundar gefa yfirlit yfir rannsóknir og skrif um áhrif sauðfjárbeitar á úthaga hérlendis og fóru í gegnum 347 greinar fyrir þá vinnu. Einungs 44 þeirra voru með haldbær töluleg gögn til að gera safngreiningu (e: meta analysis) á áhrifum beitar á ýmsa vistfræðilega þætti úthaga, en þessar greinar byggðu á 16 ólíkum rannsóknum.

    Hin gögnin greindu frá of einföldum athugunum, voru endursagnir úr nothæfum gögnum eða voru meira og minna skoðanir viðkomandi höfunda. Niðurstaðan var sú að fyrir flestar vistfræðibreytur voru birtar rannsóknir of fáar til að draga mætti almennar ályktanir útfrá þeim með safngreiningu. Marktæk áhrif sem fundust voru að á beittu landi bar meira á rofi í gróðurþekjunni og að beit hafði marktæk áhrif á gróðursamfélögin.

    Það vekur vissulega athygli hversu mörg göt eru í fræðilegri þekkingu á áhrifum úthagabeitar á Íslandi með tilliti til þess hversu löng hefð er á sauðfjárbeit. Hér er greinilega þörf á miklu átaki til að umræða um beit geti farið fram á traustari fræðilegum grunni þar sem byggt er á staðreyndum og mögulegt er að taka upplýstar ákvarðanir.​
    Smellið hér til að sjá greinina.

    Frétt þessi birtist upphaflega á heimasíðu Landgræðslu ríkisins.

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