{"id":16042,"date":"2013-08-15T08:00:34","date_gmt":"2013-08-15T15:00:34","guid":{"rendered":"http:\/\/www.survival-spot.com\/survival-blog\/?p=16042"},"modified":"2013-11-26T15:29:27","modified_gmt":"2013-11-26T22:29:27","slug":"build-a-300-underground-greenhouse-for-year-round-gardening-video","status":"publish","type":"post","link":"https:\/\/www.survival-spot.com\/survival-blog\/build-a-300-underground-greenhouse-for-year-round-gardening-video\/","title":{"rendered":"Build a $300 underground greenhouse for year-round gardening (Video)"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.survival-spot.com\/survival-blog\/wp-content\/uploads\/2013\/08\/walipini.jpg\" alt=\"walipini\" width=\"492\" height=\"370\" class=\"alignnone size-full wp-image-16245\" \/><br \/>\nGrowers in colder climates often utilize various approaches to extend the growing season or to give their crops a boost, whether it&#8217;s\u00a0<a href=\"http:\/\/www.treehugger.com\/green-architecture\/jenny-sabin-futuristic-greenhouse-uses-110-laser-cut-coldframes.html\" class=\"broken_link\">coldframes<\/a>,\u00a0<a href=\"http:\/\/www.treehugger.com\/lawn-garden\/build-your-own-mini-hoop-house-in-hours-video.html\" class=\"broken_link\">hoop houses<\/a>\u00a0or greenhouses.<\/p>\n<p>Greenhouses are usually glazed structures, but are typically expensive to construct and heat throughout the winter. A much more affordable and effective alternative to glass greenhouses is the\u00a0<em>walipini<\/em>\u00a0(an Aymara Indian word for a &#8220;place of warmth&#8221;), also known as an underground or pit greenhouse. First developed over 20 years ago for the cold mountainous regions of South America, this method allows growers to maintain a productive garden year-round, even in the coldest of climates.<\/p>\n<p>Here&#8217;s a video tour of a\u00a0<em>walipini<\/em>\u00a0that even incorporates a bit of interior space for goats:<br \/>\n<iframe loading=\"lazy\" src=\"\/\/www.youtube.com\/embed\/qB8AE_H_YTc\" height=\"480\" width=\"640\" allowfullscreen=\"\" frameborder=\"0\"><\/iframe><\/p>\n<p>&nbsp;<\/p>\n<h2>How a\u00a0<em>Walipini<\/em>\u00a0works and how to build one<\/h2>\n<p><img decoding=\"async\" alt=\"\" src=\"http:\/\/media.treehugger.com\/assets\/images\/2013\/02\/walipini3.jpg.492x0_q85_crop-smart.jpg\" \/><br \/>\n<em>\u00a9 Benson Institute<\/em><\/p>\n<p>&nbsp;<\/p>\n<p>It&#8217;s a pretty intriguing set-up that combines the principles of passive solar heating with earth-sheltered building. But how to make one?From American sustainable agriculture non-profit Benson Institute comes this enlightening manual on how a\u00a0<em>walipini<\/em>\u00a0works, and how to build it:<\/p>\n<blockquote><p>The Walipini utilizes nature\u2019s resources to provide a warm, stable, well-lit environment for year-round vegetable production. Locating the growing area 6\u2019- 8\u2019 underground and capturing and storing daytime solar radiation are the most important principles in building a successful Walipini.<\/p>\n<p>The Walipini, in simplest terms, is a rectangular hole in the ground 6 \u201b to 8\u2019 deep covered by plastic sheeting. The longest area of the rectangle faces the winter sun &#8212; to the north in the Southern Hemisphere and to the south in the Northern Hemisphere. A thick wall of rammed earth at the back of the building and a much lower wall at the front provide the needed angle for the plastic sheet roof. This roof seals the hole, provides an insulating airspace between the two layers of plastic (a sheet on the top and another on the bottom of the roof\/poles) and allows the sun&#8217;s rays to penetrate creating a warm, stable environment for plant growth.<\/p><\/blockquote>\n<p><img decoding=\"async\" alt=\"\" src=\"http:\/\/media.treehugger.com\/assets\/images\/2013\/02\/walipini.jpeg.492x0_q85_crop-smart.jpg\" \/><br \/>\n<em><a href=\"http:\/\/peswiki.com\/index.php\/User:SilverThunder\">SilverThunder<\/a>\/via<\/em><\/p>\n<p>This earth-sheltered greenhouse taps into the\u00a0<a href=\"https:\/\/en.wikipedia.org\/wiki\/Thermal_mass\" class=\"broken_link\">thermal mass<\/a>\u00a0of the earth, so that much less energy is needed to heat up the\u00a0<em>walipini&#8217;s<\/em>\u00a0interior than an aboveground greenhouse. Of course, there are precautions to take in waterproofing, drainage and ventilating the\u00a0<em>walipini<\/em>, while aligning it properly to the sun &#8212; which the manual covers in detail.<\/p>\n<p>Best of all, according to the Benson Institute, their 20-foot by 74-foot\u00a0<em>walipni<\/em>field model out in La Paz cost around $250 to $300 only, thanks to the use of free labour provided by owners and neighbours, and the use of cheaper materials like plastic ultraviolet (UV) protective sheeting and PVC piping.<\/p>\n<p>Cheap but effective, the underground greenhouse is a great way for growers to produce food year-round in colder climates. More over at the\u00a0<a href=\"http:\/\/www.bensoninstitute.org\/Publication\/Manuals\/Walipini.pdf\" class=\"broken_link\">Benson Institute<\/a>and the\u00a0<a href=\"http:\/\/peswiki.com\/index.php\/Directory:Walipini_Underground_Greenhouses\">Pure Energy Systems Wiki<\/a>.<\/p>\n<p>[Via <a href=\"http:\/\/www.treehugger.com\/green-architecture\/build-underground-greenhouse-garden-year-round.html\" target=\"_blank\">Treehugger.com<\/a>]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Growers in colder climates often utilize various approaches to extend the growing season or to give their crops a boost, whether it&#8217;s\u00a0coldframes,\u00a0hoop houses\u00a0or greenhouses. Greenhouses are usually glazed structures, but are typically expensive to construct and heat throughout the winter. A much more affordable and effective alternative to glass greenhouses is the\u00a0walipini\u00a0(an Aymara Indian word [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":16245,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[224],"tags":[],"class_list":["post-16042","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-resources"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.survival-spot.com\/survival-blog\/wp-json\/wp\/v2\/posts\/16042","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.survival-spot.com\/survival-blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.survival-spot.com\/survival-blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.survival-spot.com\/survival-blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.survival-spot.com\/survival-blog\/wp-json\/wp\/v2\/comments?post=16042"}],"version-history":[{"count":0,"href":"https:\/\/www.survival-spot.com\/survival-blog\/wp-json\/wp\/v2\/posts\/16042\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.survival-spot.com\/survival-blog\/wp-json\/wp\/v2\/media\/16245"}],"wp:attachment":[{"href":"https:\/\/www.survival-spot.com\/survival-blog\/wp-json\/wp\/v2\/media?parent=16042"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.survival-spot.com\/survival-blog\/wp-json\/wp\/v2\/categories?post=16042"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.survival-spot.com\/survival-blog\/wp-json\/wp\/v2\/tags?post=16042"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}