Viewing posts by Peter Donovan
Selman Waksman's HUMUS: Origin, Chemical Composition, and Importance in Nature (1936)
Posted by Peter Donovan 14 years, 4 months ago |
California Grassland Carbon Challenge: What we learned, advice for moving ahead
Posted by Peter Donovan 14 years, 5 months ago| photo by Carol Hirashima |
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Using multi-species cover crops to improve soil health
Posted by Peter Donovan 14 years, 6 months ago
This is an excellent presentation by Jay Fuhrer, who works for the Natural Resource Conservation Service in North Dakota, USA. He uses case studies to explain how innovative use of cover crops can boost soil health and productivity, and dramatically reduce the use of artificial fertilizers.
Sea WIFS biosphere animation
Posted by Peter Donovan 14 years, 7 months ago
Watch the global carbon cycle! The link below takes you to a NASA page that loads a 90 megabyte animated GIF file showing chlorophyll concentration (in the oceans) and Normalized Difference Vegetation Index (NDVI, on land) as the seasons change. Note: this page requires a fair bit of computer memory and good internet connection to load the image. It may step around slowly until the image is fully loaded.
Carbon cycle video
Posted by Peter Donovan 14 years, 8 months ago
The first two segments of a video presentation/animation of the carbon cycle.
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