- “Spreading antibiotics in the soil affects microbial ecosystems“. No shit.
- Drink more (Rwandan) coffee. What about the other coffee countries?
- Cane toad nemesis: meat ants. Eeyew.
- 1st Virtual International Scientific Conference On Lonicera caerulea L. Via .
- The biochar backlash. Oliver snips and links.
Nibbles: Adaptation, Vegetables, Wood, Allotment, Earthworms, Salmon, Bees, Malaria, Potatoes, Apples
- ICRISAT: “The impact of climate change on the yields under low input agriculture is likely to be minimal as other factors will continue to provide the overriding constraints to crop growth and yield.” So that’s all right then.
- Book and CD-ROM on African indigenous veggies.
- CD-ROM of wood characteristics.
- The agrobiodiversity of “…the oldest and largest area of detached town gardens in Britain” being surveyed. Cultivated since 1605. Wow.
- Earthworm Week! Yay!
- “This is an exciting time for salmon conservation in the Pahsimeroi.”
- Hawaiian native bees in trouble. Get in line.
- The world has a malaria map. Very cool.
- The Canary Islands tries to save its potatoes, sweet and otherwise.
- The Forgotten Fruits Summit. You heard me.
Revising the US Plant Hardiness Zone Map
“All gardeners are in zone denial.”
The zones in question are the U.S. Department of Agriculture’s Plant Hardiness Zones, which show where different garden species are supposed to do well. Gardeners, of course, think they know better, and will always try to push that envelope.
Anyway, the current version of the Plant Hardiness Zone Map was done way back in 1990, and needed updating. So there’s a new one coming soon. It’s bound to be different, in places very different. A whole new set of recommendations for gardeners to go into denial about.
USDA is not describing what the new map will show, but outside experts say that the trend is for zones to shift northward. “Some places have definitely warmed, although others haven’t changed at all,” says Tony Avent, owner of North Carolina-based Plant Delights Nursery and an advisor for the revision.
You can’t do much with the current map online, but the next version will be downloadable to your GIS. It will also be more sophisticated, with better data, better interpolation and better resolution (800m):
The revised map draws on 30 years of data and uses a complex algorithm to factor in other variables that affect local temperatures, such as altitude and the presence of water bodies.
Will some of the USDA’s clonal repositories (field genebanks) find themselves in the wrong zone?
Department of Silver Linings, part 387
Yes, sure, climate change will cause sea level rise, which is going to be bad for places like Bangladesh and its rice and shrimp farmers, who will all end up in Dhaka. But. Yep, there might actually be a but. The same climate change is also causing increased flows of water — and, crucially, suspended sediment — from Himalayan glaciers. All you have to do is damn up the water and the silt will build up the land, counteracting the rise in sea level. With any luck, the net result will be stasis. And farmers can keep farming. Until the glaciers run out, that is.
