public marks

PUBLIC MARKS from paleorthid with tags science & soil

December 2006

transect points: Soil and Bioavailability of P in Food

Researchers find that soil phosphorus levels may affect plant phytate levels as much as plant breeding. Not only is the phosphorus in low-phytate grain crops more digestible by people, but low-phytate grains free up minerals essential to human nutrition: zinc, manganese and iron.

transect points: Soil Science Journal Club

a resource for people interested in recent advances in Soil Science in all its guises

March 2006

Soil Taxonomy Forum

Ever wonder how long it takes to form a paleargid in Wyoming? Ask your soil genesis and morphology questions here and get an answer.

transect points: Missoula Soil Science Consultant Speaks

Tell someone you are a soil scientist and it invariably requires an explanation of what you do. It's interesting that few of us do the same things and the telling of it reveals much about the person as well as the community they serve. For that reason I like to collect other folks' descriptions of their work. Certainly the telling of Barry Dutton's life work stands among my favorites because he built his business from scratch in a particularly cost-conscious region. He did it largely without the benefit of the 2 main drivers of regional soil consulting booms: booming suburban sprawl and booming energy prices driving increased well drilling and surface mining for coal and oil shale. I've heard several iterations of Barry's telling over the years and look forward to future installments.

CLEAR: Soil scientist licensure

The Washington State Department of Licensing issued a December 2005 sunrise report recommending the licensing of soil scientists.

transect points: Smithsonian soil exhibit

This exhibit is welcomed with enthusiasm by soil scientists. It would be at any time, but now, when soil science is at the cross roads and with soil scientists keyed up about the profession, it is even more so.

February 2006

Carbon sequestration in tallgrass prairie soil

Over the course of an eight-year open-top-chamber CO2-enrichment (to twice ambient concentrations) study of a pristine (annually burned) tallgrass prairie north of Manhattan, Kansas, USA, which was composed of a mixture of C3 and C4 species, Williams et al. measured changes in the active, slow and passive pools of carbon (C) and nitrogen (N), with the goal of determining how they were impacted by the doubled atmospheric CO2 concentration of their reasonably long-term experiment.

transect points: What is Soil Science?

While the science owes a tremendous debt to agriculturists, engineers and geologists, soil science is not subordinate to any other discipline. Any real disagreement about standing were eliminated in 1924 when the International Council for Science accepted the International Union of Soil Sciences (IUSS), as a full member , rather than placing soil science within either the IUGS or IUBS.

transect points: Toronto Star reports on terra preta and terra mulata

The article highlights some important nuances. Terra mulata, the lighter type of terra preta, covers much more area than the celebrated black type central to the concept of terra preta.

transect points: Carbon Coalition Against Global Warming

comment: heartburn over an expectation that the scientific community has promoted that leads us to believe that we can create a significant, persistent sink of carbon by using established farming and forestry approaches.

transect points: Microbial Prospection for Oil and Gas

The presence of various groups of methane-, propane- and butane-oxidizing micro-organisms can reliably differentiate between prospective and non-prospective areas, as well as between oil and gas reservoirs.

transect points

I write at least twice a week about life as we know it and the trials and tribulations of dirt doctoring.

transect points: Soil scientists required in Pennsylvania for septic system permits

In many states, professional soil scientists conduct the septic system site assessments required for permit approval.

transect points: Orange ooze gives clues for those in the know.

Orange ooze forms where anaerobic waters seep from the ground. This can be a good and natural thing, or it can be due to contamination.

transect points: Grazing tool for managing riparian buffers

When grazed properly, forage plants in the riparian zone can be stimulated to re-grow and contribute greatly to the health of the ecosystem.

transect points: Where are the soil science jobs?

A narrow search shows the hottest demand to be currently in a narrow band along the urbanized eastern seaboard and in the Seattle WA area