Review of the Draft Second State of the Carbon Cycle Report (SOCCR2) (2018) / Chapter Skim
Currently Skimming:
Chapter 12: Soils
Chapter 12: Soils
Pages 91-98
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 91... ...
Recent simulations contain results for high latitude soils that contradict experimental results, suggesting carbon gain while empirical studies suggest loss. Considerable uncertainty remains about the impact of lateral transport, erosion, and riverine movement on eventual carbon storage or release.
|
From page 92... ...
The literature cited lacks depth in soil modeling, the nitrogen section is light, and the discussion of methane is very brief given the soil origin of this gas. The literature review on high latitude soils, identified as a key issue, seems sparse and does not fully reflect relevant literature, including inference from experiments and observational studies and the growing literature based on flux and atmospheric measurements.
|
From page 93... ...
.8 • Are there any broader questions, such as the selection of the evidence and findings, weight of evidence, or the consistency of the application of uncertainty language? Key Finding 2 notes the wide range of Earth System Model projections, which would indicate low confidence in model projections.
|
From page 94... ...
P461, Line 2-4 "There is no possibility" is a strong phrase when it is known that better estimates could be made with better data. This makes it sound as if we will never have any better idea of North American carbon stocks.
|
From page 95... ...
other? P465, Line 12 This should be "23 grams of carbon per "gram" of nitrogen" P465, Line 16 – P466, Line 28 In discussing gas fluxes, need to be more explicit about time periods and spatial domains, to provide context for the numbers.
|
From page 96... ...
P470, Line 31-32 "Causes of soil loss in agricultural soils include..." This list is true for all soils, except for the tillage part, which is specific to agricultural soils. P470, Line 31-41 Quotes losses without specifying time periods?
|
From page 97... ...
Chapter 12: Soils 97 • Cannot comment on other boxes and meanings of all the arrows, as it is difficult to read what the authors intend to show.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.