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2026-07-18 07:35:50 +00:00

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<title>Soil Profile | Sacramento Soil Archive</title>
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<header><a href="index.html" class="back">← SACRAMENTO SOIL ARCHIVE</a><span style="color:#d8e8e0;font-family:'JetBrains Mono';font-size:0.9rem">COORDINATES: 37°N / 120.3°W</span></header>
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<h1 class="page-title">CALIFORNIA CENTRAL VALLEY GRASSLANDS</h1>
<p style="font-size:1.4rem;line-height:1.6;max-width:60ch;opacity:0.9">WWF Ecoregion NA0801. The strata beneath the American River Parkway, the red clay that holds our gardens, the silt deposited by millennia of river migration.</p>
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<article class="data-panel"><h2>PRIMARY ENTITY</h2><div class="spec-item"><span class="spec-label">wikidata:</span><span class="spec-value">Q104715382</span></div><div class="spec-item"><span class="spec-label">instance of:</span><span class="spec-value">ecoregion</span></div><div class="spec-item"><span class="spec-label">realm:</span><span class="spec-value">Nearctic</span></div><div class="spec-item"><span class="spec-label">country:</span><span class="spec-value">United States</span></div><div class="spec-item"><span class="spec-label">administrative entity:</span><span class="spec-value">California</span></div><div class="spec-item"><span class="spec-label">physical feature:</span><span class="spec-value">Central Valley</span></div><div class="spec-item"><span class="spec-label">one_earth_id:</span><span class="spec-value">california-central-valley-grasslands</span></div></article>
<article class="data-panel"><h2>CLASSIFICATION SYSTEM</h2><div class="spec-item"><span class="spec-label">wikidata:</span><span class="spec-value">Q905795</span></div><div class="spec-item"><span class="spec-label">standards_body:</span><span class="spec-value">ASTM International</span></div><div class="spec-item"><span class="spec-label">bartoc_id:</span><span class="spec-value">1082</span></div><div class="spec-item"><span class="spec-label">kbpedia_id:</span><span class="spec-value">UnifiedSoilClassificationSystem</span></div><div class="spec-item"><span class="spec-label">has_use:</span><span class="spec-value">soil classification</span></div><div class="spec-item"><span class="spec-label">items_classified:</span><span class="spec-value">soil</span></div></article>
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<div class="soil-stack"><div class="stratum">035cm: Surface Loam (organic-rich)</div><div class="stratum">3570cm: Red Clay Matrix (iron oxide saturation)</div><div class="stratum">70100cm: Alluvial Silt (river deposition)</div></div>
<article class="legend"><h3>STRATUM LEGEND</h3><div class="legend-item"><div class="swatch" style="background:#d4a574"></div><span style="font-family:'JetBrains Mono'">Surface Loam — organic matter, seed banks</span></div><div class="legend-item"><div class="swatch" style="background:#c94c32"></div><span style="font-family:'JetBrains Mono'">Red Clay — iron oxides, water retention</span></div><div class="legend-item"><div class="swatch" style="background:#8b7355"></div><span style="font-family:'JetBrains Mono'">Alluvial Silt — river-borne minerals</span></div></article>
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