| 词条 | Grasscycling |
| 释义 |
Grasscycling refers to an aerobic (requires air) method [1] of handling grass clippings by leaving them on the lawn when mowing. The term is a portmanteau combining "grass" and "recycling", and had come into use by at least 1990[2] as part of the push to reduce the huge quantities of clippings going into landfills, up to half of some cities' summertime waste flow,[3] as 1,000 square feet (93 m2) of lawn can produce 200 to 500 pounds (90 to 225 kg) of clippings a year.[4] Because grass consists largely of water (80% or more[5]), contains little lignin,[5] and has high nitrogen content, grass clippings easily break down during an aerobic process [1] (comparable to composting) and returns the decomposed clippings to the soil within one to two weeks,[4] acting primarily as a fertilizer supplement and, to a much smaller degree, a mulch. Grasscycling can provide 15 to 20% or more of a lawn's yearly nitrogen requirements.[6][7] Proponents also note that grasscycling reduces the use of plastic bags for collecting yard waste and reduces trips to the curb or landfill to haul waste.[8] Optimal grasscycle techniques include:[4][6][9]
Although a mulching mower can make grass clippings smaller, one is not necessary for grasscycling. See also
References1. ^1 {{cite web|last1=Scoville|first1=Heather|title=Aerobic vs. Anaerobic Processes|url=http://evolution.about.com/od/Microevolution/a/Aerobic-Vs-Anaerobic-Respiration.htm|website=About Education|publisher=About.com|accessdate=April 17, 2015|ref=O2NoO2}} 2. ^{{cite web|url=http://www.wordspy.com/words/grasscycling.asp|title=Grasscycling definition/etymology|accessdate=2007-05-25}} 3. ^{{cite web|url=http://www.denvergov.org/recoth/GrassCycle/tabid/425972/Default.aspx|title=Denver Recycle Grasscycle|accessdate=2007-05-25}} 4. ^1 2 {{cite web|url=http://avenue.org/rswa/grasscycle.htm |title=Rivanna Solid Waste Authority Grasscycling Info |accessdate=2007-05-25 |archiveurl=https://web.archive.org/web/20070930161007/http://avenue.org/rswa/grasscycle.htm |archivedate=2007-09-30 |deadurl=yes |df= }} 5. ^1 {{cite web|url=http://www.ciwmb.ca.gov/Organics/GrassCycling/FAQ.htm|title=Grasscycling FAQ|accessdate=2007-05-25}} 6. ^1 {{cite web|url=http://www.reelmowersetc.com/grasscycle!.htm|title=Grasscycle!|accessdate=2007-05-25}} 7. ^{{cite web|url=http://www.ciwmb.ca.gov/Organics/GrassCycling/default.htm|title=California Integrated Waste Management Board - What is grasscycling?|accessdate=2007-05-25}} 8. ^{{cite web|url=http://www.metrokc.gov/procure/green/rjcgrass.htm|title=King County Experience: Grasscycling|accessdate=2007-05-25|archiveurl=https://web.archive.org/web/19991105152701/http://www.metrokc.gov/procure/green/rjcgrass.htm|archivedate=1999-11-05}} 9. ^{{cite web|url=http://www.abag.ca.gov/bayarea/grass/grasstips.html|title=Bay Delta Grass Recycling Campaign|accessdate=2007-05-25}} 10. ^1 {{Cite web| url = http://www.dummies.com/how-to/content/how-often-should-you-mow-your-lawn.html| title = How Often Should You Mow Your Lawn? - For Dummies| website = www.dummies.com| access-date = 2016-02-29}} External links
6 : Lawn care|Grasses|Organic gardening|Soil improvers|Recycling|Composting |
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