Most Popular Posts
Categories
- Biodiversity (45)
- Climate change (137)
- Community-based conservation (45)
- Economics and conservation (113)
- Endangered species (185)
- Fresh water (41)
- Habitat (158)
- Invasive species (76)
- Marine (103)
- Monitoring (198)
- Restoration (133)
- Socio-political issues (148)
- Tools and technology (91)
Archives
- June 2010
- May 2010
- April 2010
- March 2010
- February 2010
- January 2010
- December 2009
- November 2009
- October 2009
- September 2009
- August 2009
- July 2009
- April 2009
- January 2009
- August 2008
- July 2008
- June 2008
- May 2008
- April 2008
- March 2008
- February 2008
- January 2008
- December 2007
- November 2007
- October 2007
- September 2007
- August 2007
- July 2007
- June 2007
- May 2007
- April 2007
- March 2007
- February 2007
- January 2007
Nov
22
2009
Tree plantations can drain soil of nutrients
Cheap viagra over the counter, Planting trees may suck carbon dioxide from the atmosphere, but trees can also deplete the soil of certain nutrients if they are not harvested sustainably, scientists say in Ecological Applications.
Afforestation, or the process of converting grassland, pasture, and other unforested land to tree plantations, could help countries offset their carbon dioxide emissions. About 140 million hectares of afforested land were being maintained in 2005, αγοράσετε viagra, Comprare viagra sconto, and another 34 million hectares could be planted by 2020, the authors write.
The team combed the scientific literature for studies on tree plantation soil and came up with 71 papers covering 153 sites around the world, order viagra. αγοράσετε viagra έκπτωση, On average, afforestation caused soil calcium to drop by 29%, North Carolina NC N.C. , Purchase viagra online, carbon by 6.7%, and nitrogen by 15%, Mississippi MS Miss. , Cheapest viagra online, with the carbon and nitrogen changes occurring mainly on pine plantations. Sodium levels went up by 71%, Texas TX Tex. , Online viagra, they found, and soil became more acidic.
Because trees take up so many nutrients, Maryland MD Md. , Wisconsin WI Wis. , frequent harvesting could eventually reduce soil quality, the researchers say, cheap viagra online without prescription. Louisiana LA , To keep soils fertile, they recommend leaving logging residue on the plantation sites rather than burning or removing it, order viagra online. New Hampshire NH N.H. , – Roberta Kwok
Source: Berthrong, S., viagra without a prescription, Order viagra pills, Jobbágy, E., order viagra overnight delivery, Vermont VT Vt. , & Jackson, R, viagra discount. Viagra ordine on-line, (2009). A global meta-analysis of soil exchangeable cations, Kjøp Discount viagra, Kjøpe viagra, pH, carbon, ordering viagra online cheap, and nitrogen with afforestation Ecological Applications, 19 (8), 2228-2241 DOI: 10.1890/08-1730.1
Image © urbancow, iStockPhoto.com
.
Similar posts: Buy viagra free samples online cheap. Buy propecia cod. Sildenafil citrate cod. Where to buy cheap viagra. Comprar viagra de descuento. Viagra pharmacy.
Trackbacks from: Cheap viagra over the counter. Cheap viagra over the counter. Cheap viagra over the counter. Cheap viagra over the counter. Cheap viagra over the counter. Cheap viagra over the counter.
Filed Under Climate change |
Email This Post
May I ask who the S. Berthrong is please?
I think we are all related somehow.
Hi Sharon,
According to the paper, Sean Berthrong is at the University Program in Ecology at Duke University.
Roberta