Create a publication-quality scientific figure in the style of Nature / SCI journals.
Figure type: geographic data visualization map
Title: “Steel & Alumina Industry Ecosystem Linkage Map”
Aspect ratio: 16:9
Resolution: 300 dpi or higher
Output style: clean, academic, minimal, publication-ready, vector-like, precise, high legibility
GENERAL STYLE
- Scientific journal figure style, similar to Nature / SCI supplementary figures
- White background, no texture
- Flat and clean composition
- No decorative effects, no 3D rendering, no glossy style, no infographic cartoon style
- Use precise typography, restrained color palette, balanced spacing
- Make the figure suitable for journal submission, academic papers, and conference presentations
BASE MAP
- Use a clean map of China as the main base layer
- Provinces filled with soft muted pastel colors, low saturation
- Thin gray provincial borders
- Include South China Sea inset in standard scientific-map style
- Do NOT include any Southeast Asia inset box
- Do NOT show Malaysia, Kuala Lumpur, or any Malaysian territory
- Keep the map geographically accurate and uncluttered
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LAYER 1 — STEEL PRODUCTION CAPACITY
Visual encoding:
- Use red bubbles for steel capacity
- Bubble color: subtle red gradient or flat scientific red using #C0392B to #E74C3C
- White outline stroke, thin and crisp
- IMPORTANT — INVERTED BUBBLE SCALE:
Bubble SIZE must be SMALLER when the displayed production NUMBER is LARGER
(visually invert the typical "larger number = bigger bubble" convention)
Largest production value (12,000) → smallest bubble (diameter ~3 mm)
Smallest production value (1,000) → largest bubble (diameter ~15 mm)
All other bubbles scale proportionally by area following this inverted rule
- Place each bubble at the correct city-level geographic position
Use exact geographic coordinates for each city listed below
- Use collision-aware layout for labels
- If cities are close, use slight label offset and thin leader lines
- If overlap is unavoidable, smaller bubbles (larger values) must remain visible on top
- Label each point with city name and numeric value
- Company names appear in smaller neutral gray text below the city label
- Show unit only once in legend: “Unit: 10,000 tons”
Steel data (with geographic coordinates — place bubbles precisely at these locations):
Tangshan, Hebei (39.63°N, 118.18°E) — HBIS; Shougang Jingtang — 12,000
Rizhao, Shandong (35.42°N, 119.53°E) — Shandong Steel; Rizhao Steel — 8,500
Handan, Hebei (36.61°N, 114.49°E) — HBIS — 7,000
Anshan, Liaoning (41.12°N, 122.99°E) — Ansteel Group — 6,500
Liuzhou, Guangxi (24.31°N, 109.41°E) — Liuzhou Steel — 5,000
Shanghai Baoshan (31.40°N, 121.49°E) — Baosteel — 4,900
Linfen, Shanxi (36.08°N, 111.52°E) — 4,000
Zhangjiagang, Jiangsu (31.87°N, 120.54°E) — Shagang; Yonggang; Meishan Steel — 3,800
Wuhan Qingshan, Hubei (30.60°N, 114.40°E) — Baowu — 2,700
Taiyuan, Shanxi (37.87°N, 112.55°E) — 1,700
Jilin City, Jilin (43.84°N, 126.55°E) — 1,200
Qiqihar, Heilongjiang (47.35°N, 123.92°E) — 1,000
REMOVED: Malaysia and Eastern Steel data entirely deleted
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LAYER 2 — ALUMINA PRODUCTION CAPACITY
Visual encoding:
- Use blue bubbles for alumina capacity
- Bubble color: subtle blue gradient or flat scientific blue using #2471A3 to #5DADE2
- White outline stroke, thin and crisp
- IMPORTANT — INVERTED BUBBLE SCALE (same rule as steel):
Bubble SIZE must be SMALLER when the displayed production NUMBER is LARGER
Largest production value (3,000) → smallest bubble (diameter ~3 mm)
Smallest production value (140) → largest bubble (diameter ~10 mm)
All other bubbles scale proportionally by area following this inverted rule
- Place each bubble at the correct city-level geographic position
Use exact geographic coordinates for each city listed below
- Use clean academic labeling
- If overlap occurs, use slight offset and fine leader lines; smaller bubbles remain visible
- Label each point with city name and numeric value
Alumina data (with geographic coordinates — place bubbles precisely at these locations):
Binzhou, Shandong (37.38°N, 118.02°E) — 3,000
Lvliang, Shanxi (37.52°N, 111.14°E) — 1,930
Baise, Guangxi (23.90°N, 106.62°E) — 1,550
Zhengzhou, Henan (34.75°N, 113.62°E) — 880
Guiyang, Guizhou (26.65°N, 106.63°E) — 450
Chongqing (29.56°N, 106.55°E) — 420
Kunming, Yunnan (25.04°N, 102.71°E) — 140
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TYPOGRAPHY
- Use a clean sans-serif font similar to Helvetica / Arial / Source Sans
- Title at upper left:
“Steel & Alumina Industry Ecosystem Linkage Map”
dark gray #333333, bold, publication-style
- Optional subtitle in smaller font:
“Major production capacity distribution across China”
(removed “and selected overseas location” since Malaysia is deleted)
- City labels: dark gray or color-matched but restrained, highly legible
- Company labels: smaller gray text
- Source note at lower right:
“Source: National Bureau of Statistics of China / Mysteel / Corporate annual reports”
small gray font, unobtrusive
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LEGEND (INVERTED BUBBLE SCALE)
Place a compact scientific legend in the upper right:
- Title: “Production Capacity (Inverted Bubble Scale)”
- Subtitle note: “Smaller bubble = Larger production value”
- Separate steel and alumina bubble size reference guides
- Steel reference circles (label each with its value):
- Largest bubble → labeled “1,000”
- Medium bubble → labeled “6,000”
- Smallest bubble → labeled “12,000”
- Alumina reference circles (label each with its value):
- Largest bubble → labeled “140”
- Medium bubble → labeled “1,500”
- Smallest bubble → labeled “3,000”
- Unit: “Unit: 10,000 tons”
- Color swatches: Red = Steel, Blue = Alumina
- Clean line-based legend, no decorative icons
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LAYOUT REQUIREMENTS
- Prioritize readability and publication clarity over decorative appearance
- Maintain visual hierarchy: title, map, bubbles, labels, legend, source
- Prevent label clutter in North China and East China
- Ensure Shanxi labels (Taiyuan, Linfen, Lvliang) remain readable and do not collide
- Ensure Hebei labels (Tangshan, Handan) do not collide — Tangshan is coastal (~118°E), Handan is inland (~114°E), sufficient separation
- Ensure all Chinese locations are shown in English only
- Make the final output look like a high-quality journal figure, not a marketing infographic
- Crisp edges, balanced white space, precise alignment, scientifically credible appearance
- No Malaysia data, no Southeast Asia inset, no overseas references