tag:blogger.com,1999:blog-29620164438032153682024-03-13T04:49:49.574+01:00drs. Rini van der Pol - De wereld ontdekken met aardrijkskundedrs. Rini van der Polhttp://www.blogger.com/profile/00531512117582381935noreply@blogger.comBlogger127125tag:blogger.com,1999:blog-2962016443803215368.post-67010763377349487182022-09-26T21:46:00.018+02:002023-01-02T16:24:41.053+01:006VWO Leefwereld Reevediep <span face="Roboto, Arial, sans-serif" style="white-space: pre-wrap;"><div class="separator" style="background-color: #f9f9f9; clear: both; color: #030303; font-size: 14px; text-align: center;"><br /></div><h1 style="box-sizing: border-box; line-height: 1.2; margin-bottom: 20px; margin-top: 0px; position: relative; white-space: normal;"><span style="background-color: white; font-family: verdana; font-size: small;">Reevediep</span></h1><span face="aktiv-grotesk, sans-serif" style="white-space: normal;"><span style="background-color: white; font-family: verdana;">Het Reevediep is een nieuwe waterverbinding tussen de IJssel en het Drontermeer. </span></span></span><div><span face="Roboto, Arial, sans-serif" style="white-space: pre-wrap;"><span face="aktiv-grotesk, sans-serif" style="white-space: normal;"><span style="background-color: white; font-family: verdana;"><br /></span></span></span></div><div><span face="Roboto, Arial, sans-serif" style="white-space: pre-wrap;"><span face="aktiv-grotesk, sans-serif" style="white-space: normal;"><span style="background-color: white; font-family: verdana;">Deze hoogwatergeul is er om in extreme omstandigheden hoogwater van de IJssel af te kunnen voeren via het Drontermeer en het Vossemeer, naar het IJsselmeer. </span></span></span><div><span face="Roboto, Arial, sans-serif" style="white-space: pre-wrap;"><span face="aktiv-grotesk, sans-serif" style="white-space: normal;"><span style="background-color: white; font-family: verdana;"><br /></span></span></span></div><div><span face="Roboto, Arial, sans-serif" style="white-space: pre-wrap;"><span face="aktiv-grotesk, sans-serif" style="white-space: normal;"><span style="background-color: white; font-family: verdana;">Met de komst van het Reevediep is een groot deel van de omgeving ten zuiden van Kampen veranderd.</span></span></span><div><span face="aktiv-grotesk, sans-serif"><span style="background-color: white; font-family: verdana;"><br /></span></span><div><span face="Roboto, Arial, sans-serif" style="white-space: pre-wrap;"><span style="background-color: white; font-family: verdana;"><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj68UDJ-4mSSJeHZPvXOjF6xksspA9H7uHYt9Rz8JTpOPsVq0jITmLiNGyFAWRmlFC2Jhm-ahyCoUF1xBxFspMBsOTs86zzD8-EZVhg6hSu-p-npfiR_nF73oNlLij7x2ZC_n3XbAknAvqi_pMaUOXsjdkoqQeugLr48CqfWfm3ALfzEJPmSLGnKBHlgQ/s1024/achtergrondkaart_v2-1024x457.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="457" data-original-width="1024" height="286" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj68UDJ-4mSSJeHZPvXOjF6xksspA9H7uHYt9Rz8JTpOPsVq0jITmLiNGyFAWRmlFC2Jhm-ahyCoUF1xBxFspMBsOTs86zzD8-EZVhg6hSu-p-npfiR_nF73oNlLij7x2ZC_n3XbAknAvqi_pMaUOXsjdkoqQeugLr48CqfWfm3ALfzEJPmSLGnKBHlgQ/w640-h286/achtergrondkaart_v2-1024x457.jpg" width="640" /></a></div><div class="separator" style="clear: both; text-align: center;"><br /><br /></div>Sinds 2015 is gewerkt aan de uitvoering van het project Ruimte voor de Rivier IJsseldelta. Zo is het zomerbed van de IJssel over een lengte van 8 kilometer uitgebaggerd. </span></span><div><span face="Roboto, Arial, sans-serif" style="white-space: pre-wrap;"><span style="background-color: white; font-family: verdana;"><br /></span></span></div><div><span face="Roboto, Arial, sans-serif" style="white-space: pre-wrap;"><span style="background-color: white; font-family: verdana;">Dit draagt voor de helft bij aan de waterveiligheidsdoelstellingen van de regio. Om de andere helft ook te realiseren, is de hoogwatergeul Reevediep ten zuiden van Kampen aangelegd om hoogwater op de IJssel soepeler te kunnen afvoeren. </span></span><div><span face="Roboto, Arial, sans-serif" style="white-space: pre-wrap;"><span style="background-color: white; font-family: verdana;"><br /></span></span></div><div><span face="Roboto, Arial, sans-serif" style="white-space: pre-wrap;"><span style="background-color: white; font-family: verdana;">Ook zijn in 5 uiterwaarden maatregelen genomen om water te bergen of sneller af te voeren. </span></span></div><div><span face="Roboto, Arial, sans-serif" style="white-space: pre-wrap;"><span style="background-color: white; font-family: verdana;"><br /></span></span></div><div><span face="Roboto, Arial, sans-serif" style="white-space: pre-wrap;"><span style="background-color: white; font-family: verdana;">En er is bijna 400 hectare nieuwe natuur gerealiseerd en nieuwe wandel- en fietspaden aangelegd. </span></span></div><div><span face="Roboto, Arial, sans-serif" style="white-space: pre-wrap;"><span style="background-color: white; font-family: verdana;"><br /></span></span></div><div><span face="Roboto, Arial, sans-serif" style="white-space: pre-wrap;"><span style="background-color: white; font-family: verdana;">Op het Reevediep kan straks worden gevaren. En de gemeente Kampen wil het nieuwe dorp Reeve realiseren op en achter een klimaatbestendige dijk.
<div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEja7y0tCW0ilpXeQObovxG-IFiJkwkYWtO3Vf0a83EvzMYFvCchtIVj9ghTg06JYh_mimE8WlN7vGOsLSh9a_HVV67Owxy2HiKwmWDqTgaDlwcT2FqwyE4FnrRaFEeZFiukurt297674EzJoqqhWxL3bk7_94PEkI-pISHR8449QFYNbSmxP1bhMkc54g/s1024/Illustratie-Algemeen-Ruimte-voor-de-rivier-IJsseldelta_v2-1024x673.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="673" data-original-width="1024" height="420" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEja7y0tCW0ilpXeQObovxG-IFiJkwkYWtO3Vf0a83EvzMYFvCchtIVj9ghTg06JYh_mimE8WlN7vGOsLSh9a_HVV67Owxy2HiKwmWDqTgaDlwcT2FqwyE4FnrRaFEeZFiukurt297674EzJoqqhWxL3bk7_94PEkI-pISHR8449QFYNbSmxP1bhMkc54g/w640-h420/Illustratie-Algemeen-Ruimte-voor-de-rivier-IJsseldelta_v2-1024x673.jpg" width="640" /></a></div><br /></span></span><p><span style="font-family: verdana; white-space: pre-wrap;"><span style="background-color: white;">Waterschap Drents Overijsselse Delta is nu officieel de beheerder van de nieuwe dijken, sloten en gemalen rondom het Reevediep.</span></span></p><p><span style="font-family: verdana; white-space: pre-wrap;"></span></p><div class="separator" style="clear: both; text-align: center;"><span style="font-family: verdana; white-space: pre-wrap;"><iframe allowfullscreen="" class="BLOG_video_class" height="266" src="https://www.youtube.com/embed/_MQQ9qgh4m8" width="320" youtube-src-id="_MQQ9qgh4m8"></iframe></span></div><span style="font-family: verdana; white-space: pre-wrap;"><br /><div class="separator" style="clear: both; text-align: center;"><iframe allowfullscreen="" class="BLOG_video_class" height="266" src="https://www.youtube.com/embed/May0nP9Dnqs" width="320" youtube-src-id="May0nP9Dnqs"></iframe></div><br /><div class="separator" style="clear: both; text-align: center;"><iframe allowfullscreen="" class="BLOG_video_class" height="266" src="https://www.youtube.com/embed/cxN1poNnoZA" width="320" youtube-src-id="cxN1poNnoZA"></iframe></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div><br /><span style="background-color: white;"><br /></span></span><p></p><p><br /></p><p><span style="font-family: verdana;"><span style="background-color: white;"> </span></span></p></div></div></div></div></div></div>drs. Rini van der Polhttp://www.blogger.com/profile/00531512117582381935noreply@blogger.comtag:blogger.com,1999:blog-2962016443803215368.post-54415122458707931822019-08-26T20:06:00.008+02:002023-01-02T16:21:55.380+01:006VWO Leefwereld De Overdiepse polder<div dir="ltr" style="text-align: left;" trbidi="on">
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RIVIERVERRUIMING OVERDIEPSE POLDER</span></h3><span style="background-color: white; font-family: verdana;">
In tijden van extreem hoogwater kan de Bergsche Maas een bedreiging vormen voor dorpen en steden langs deze rivier. <br />
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Door rivierverruiming van de Overdiepse Polder bij Waspik kan er bij hoogwater rivierwater door het gebied stromen. <br />
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De dijk is verlaagd zodat deze bij hoogwater geen barrière meer vormt. <br />
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Dankzij een terpenplan blijven tegelijkertijd de belangrijke functies voor wonen, werken, landbouw en veeteelt behouden.<br />
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drs. Rini van der Polhttp://www.blogger.com/profile/00531512117582381935noreply@blogger.comtag:blogger.com,1999:blog-2962016443803215368.post-20918012717838707462019-08-26T19:27:00.007+02:002023-01-02T16:22:04.054+01:006VWO Leefwereld De Noordwaard <div dir="ltr" style="text-align: left;" trbidi="on">
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ONTPOLDERING NOORDWAARD</span></h3><span style="background-color: white; font-family: verdana;">
De voormalige Noordwaard polder is een gebied van zo’n 4.450 hectare – circa 6.000 voetbalvelden – deze is gelegen tussen de Brabantse Biesbosch en de rivier de Nieuwe Merwede.<br />
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Door <strong>ontpoldering</strong> is de veiligheid in het benedenrivierengebied vergroot, zodat het rivierwater bij <strong>hoogwater de Noordwaard in en weer uit kan stromen.</strong><br />
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In 2009 werd gestart met één van de grootste maatregelen binnen het programma: de ontpoldering van de Noordwaard. <br />
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In vijf jaar tijd werd een deel van de Noordwaard opnieuw ingedeeld en gewijzigd <strong>van een binnendijks- naar een buitendijks gebied</strong>. <br />
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In het midden is zo een <strong>doorstroomgebied </strong>ontstaan om bij hoogwater de doorstroom van grote hoeveelheden rivierwater naar zee mogelijk te maken. <br />
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Daarvoor zijn <strong>in- en uitstroomopeningen</strong> gemaakt <strong>door dijken gedeeltelijk af te graven.</strong><br />
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drs. Rini van der Polhttp://www.blogger.com/profile/00531512117582381935noreply@blogger.comtag:blogger.com,1999:blog-2962016443803215368.post-46504660461478056462019-08-26T19:20:00.004+02:002023-01-02T16:22:12.115+01:006VWO Leefwereld De Slufter <div dir="ltr" style="text-align: left;" trbidi="on">
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De Slufter</span></h1>
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Op Texel, tussen de Muy en de Eierlandse Duinen ligt de Slufter, het bekendste natuurgebied van het eiland. </span></div><div class="intro-content"><span style="font-family: verdana;"><br /></span></div><div class="intro-content"><span style="font-family: verdana;">Het is een grote kweldervlakte tussen twee zanddijken in. <br />
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Het bijzondere is dat deze kwelder aan de Noordzeekust ligt. <br />
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Kreken met zout water stromen dwars door het gebied. Als het stormt uit het noordwesten loopt het gebied onder water. Er groeien alleen planten die zout water kunnen verdragen.<br />
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Er is een gat in de duinenrij. Daar zijn het strand en de Noordzee. <br />
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Bij storm kan de hele vallei onder water lopen. <br />
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De geul blijft <strong>op diepte door het terug naar zee stromende water</strong>. <br />
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Waar het water in de geulen zachtjes stroomt, <strong>sedimenteert/</strong> <strong>bezinkt het slib/ klei </strong>ofwel bij lagere stroomsnelheid sedimenteert het fijne materiaal. <br />
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Op die manier ontstaat er een <strong>wadbodem</strong>. Dat gebeurt vooral in het noordelijke deel. <br />
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Rond <strong>de hoofdgeul</strong> stroomt het water <strong>sneller</strong> en is het<strong>, </strong>omdat bij hogere stroomsnelheid grover materiaal als zand kan worden afgezet.<br />
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drs. Rini van der Polhttp://www.blogger.com/profile/00531512117582381935noreply@blogger.comtag:blogger.com,1999:blog-2962016443803215368.post-55353554620574941752019-08-26T19:12:00.002+02:002023-01-02T16:22:20.807+01:006VWO Leefwereld Hondsbossche Zeewering <div dir="ltr" style="text-align: left;" trbidi="on"><span style="font-family: verdana;"><b>
De Hondsbossche Zeewering</b></span></div><div dir="ltr" style="text-align: left;" trbidi="on"><span style="font-family: verdana;"><br /></span></div><div dir="ltr" style="text-align: left;" trbidi="on"><span style="font-family: verdana;">Deze waterkering is een 5,5 km lange dijk nabij Petten, op een plaats waar een stormvloed in de Middeleeuwen door de oorspronkelijke duinen is doorgebroken. <br />
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De Hondsbossche Zeewering heeft een lange geschiedenis van stormschade en dijkherstel.<br />
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Het huidige dijklichaam ligt daar sinds 1880 en is sindsdien meerdere malen verhoogd en verbreed. <br />
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Door de <strong>voortdurende erosie</strong> van de aangrenzende duinen is de zeewering steeds meer in zee komen te liggen. <br />
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Het was een<strong> zwakke schakel</strong> in de verdediging van de kustlijn. Dus werd besloten om deze ‘zwakke schakel’ in de kustverdediging op een min of meer <strong>natuurlijke manier</strong> te versterken. <br />
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Voor en op de kust werd 35 miljoen kubieke meter zand gestort. Aan <strong>zeestroming en wind</strong> de taak het zand landinwaarts te brengen en zo de<strong> duinendijk </strong>te<strong> verhogen</strong>.<br />
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Door kustverdedigingsmaatregelen, zoals <strong>zandsuppletie,</strong> wil men de zeewering versterken en de veiligheid waarborgen.<br />
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Kustversterking met zand kent meerdere voordelen. <br />
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1 Het is een heel <strong>natuurlijke en duurzame oplossing</strong>: zand beweegt mee met het water en met de stijgende zeespiegel. Spoelt de zee zand weg, dan kan dit eenvoudig worden teruggebracht. <br />
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2 Ook creëren we op deze manier <strong>kansen voor recreatie en natuurontwikkeling</strong>. <br />
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3 Het is bovendien <strong>goedkoper </strong>dan de realisatie van een versterkte harde kering.<br />
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drs. Rini van der Polhttp://www.blogger.com/profile/00531512117582381935noreply@blogger.comtag:blogger.com,1999:blog-2962016443803215368.post-77222615780462185502019-08-25T20:09:00.004+02:002023-01-02T16:22:29.881+01:006VWO Leefwereld Zandmotor <div dir="ltr" style="text-align: left;" trbidi="on">
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Zandmotor: natuurlijke kustbescherming</span></h1>
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</span><div class="separator" style="clear: both; text-align: center;"><a href="https://lh3.googleusercontent.com/-f6QvZqnKJ_c/YVmzcqW67WI/AAAAAAAC3rE/4iiw69DA6XIVo0hvThPf0wacfcPd2KTgQCLcBGAsYHQ/image.png" style="margin-left: 1em; margin-right: 1em;"><span style="font-family: verdana;"><img alt="" data-original-height="806" data-original-width="1440" height="358" src="https://lh3.googleusercontent.com/-f6QvZqnKJ_c/YVmzcqW67WI/AAAAAAAC3rE/4iiw69DA6XIVo0hvThPf0wacfcPd2KTgQCLcBGAsYHQ/w640-h358/image.png" width="640" /></span></a></div><span style="font-family: verdana;"><br /></span></h1>
<div style="text-align: left;"><span style="font-family: verdana;"><b>Waarom?</b></span></div></div>
<div class="page-content"><section class="section" id="waarom"><div class="row"><div class="m-span6"><ul class="check block"><li><span style="font-family: verdana;">Zandmotor is een kunstmatig schiereiland voor de kust van 128 ha.</span></li>
<li><span style="font-family: verdana;">Dit schiereiland zorgt ervoor dat de kust tussen Hoek van Holland en Scheveningen op natuurlijke wijze aangroeit. </span></li>
<li><span style="font-family: verdana;">De nieuw gevormde kust beschermt ons land tegen de zeespiegelstijging.</span></li>
<li><span style="font-family: verdana;">Door het verbreden van het strand en de duinen ontstaat 35 ha extra natuur- en recreatiegebied. </span></li>
<li><span style="font-family: verdana;">We onderzoeken met het pilotproject of de natuur zelf kan bijdragen aan kustonderhoud.</span></li>
</ul>
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