Microclimates & Healing Power: Four Forest Types of Southern Taihang Mountains

The southern Taihang Mountains (mainly Henan and Shanxi provinces, China) are home to some of the most valuable naturally recovering forest ecosystems in northern China. These forests create distinctly different microclimates under their canopies — small worlds of cooler air, higher humidity, abundant negative air ions, and healing volatile compounds called phytoncides.



 

Modern forest therapy (known in Japan as shinrin-yoku or “forest bathing”) is built on these very properties. Spending time in such environments produces measurable improvements in stress hormones, immune function, blood pressure, sleep quality, and psychological well-being.

Four Main Forest Types – Four Different Natural Medicines

The southern Taihang hosts four ecologically and therapeutically distinct forest types:

  1. Deciduous broad-leaved oak forests (Quercus variabilis, Q. aliena, Q. liaotungensis)
  2. Mixed broad-leaved forests (birch, maple, linden, ash, hornbeam + oak)
  3. Pine-oak mixed forests (Pinus tabuliformis + oaks)
  4. Warm-temperate scrub-forest transitional zones (dense young stands and tall shrublands)

1. Oak Forests – The Classic Summer Calming Forest

Microclimate highlights:

  • 3–6 °C cooler than open areas in summer
  • Relative humidity frequently 75–90 %
  • Excellent sound absorption (–10…–14 dB)
  • Negative ions: 1 200–2 800 ions/cm³ (moderate–good)
  • Peak phytoncide release: late spring → early summer

Best for: chronic stress, anxiety, high blood pressure, burnout prevention, psychological recovery.

This is the forest most people instinctively describe as “peaceful” and “cool” — the classic green medicine of East Asian forest therapy.

2. Mixed Broad-leaved Forests – The Year-round Champion

Microclimate highlights:

  • Most balanced annual temperature & humidity regime
  • Highest average negative ion concentration (often 2 200–4 500 ions/cm³)
  • Lowest fine particulate matter (PM2.5/PM10)
  • Very high oxygen output during growing season
  • Extremely diverse volatile organic compounds

Best for: immune system strengthening, post-viral recovery, chronic fatigue, long forest therapy programs (3–7+ days).

Many researchers consider this type the gold standard for comprehensive human health restoration.

3. Pine-Oak Mixed Forests – Winter Respiratory Specialist

Microclimate highlights:

  • Evergreen structure → excellent winter wind protection
  • Very high negative ions after snow/frost (3 500–6 000+ ions/cm³)
  • Strongest release of α-pinene and β-pinene
  • Stable humidity even in dry seasons

Best for: chronic bronchitis, asthma (stable phase), seasonal allergies, respiratory rehabilitation.

The combination of pine volatiles + elevated winter ions makes this forest especially valuable from late autumn through early spring.

4. Scrub-Forest Transitional Zones – The Natural Energy Station

Microclimate highlights:

  • Highest short-term negative ion peaks (frequently >5 000–9 000 ions/cm³ near streams)
  • Strongest summer daytime cooling (up to 8–10 °C difference)
  • Most dynamic air movement and biodiversity of smells

Best for: depression, seasonal affective disorder, low energy, poor concentration, short intensive sessions (1–2 hours).

These dynamic young forests, especially in moist valleys, feel invigorating and “electric” — perfect when you need a quick reset.

Scientifically Documented Benefits of Taihang Forest Therapy

  • Blood pressure ↓ 5–12 mmHg (systolic)
  • Heart rate ↓ 4–10 bpm
  • Cortisol (stress hormone) ↓ 12–28 %
  • Natural killer (NK) cells activity ↑ 25–53 % (effect lasts 7–30 days)
  • Improved mood scores & reduced anxiety/depression indices
  • Better sleep quality & faster mental fatigue recovery
  • Lower inflammation markers (CRP, IL-6)

How to Get the Maximum Healing Effect?

Practical Forest Bathing Guide – Southern Taihang

  1. Match forest type to your current need
  2. Ideal duration: 2–4 hours (one-time) or 3–7 days (deep effect)
  3. Leave phone on silent / airplane mode
  4. Practice slow walking, deep breathing, or simply sitting/lying
  5. Best moments: early morning + after rain
  6. Combine with conscious breathing for stronger results

Conclusion – An Evergreen Natural Pharmacy

The southern slopes of the Taihang Mountains offer one of the most accessible, diverse, and scientifically valuable forest therapy landscapes in northern China.

No matter whether you currently need deep relaxation, immune support, respiratory recovery, or simply an energy boost — these four forest types are always ready to provide exactly the natural medicine your body and mind require.

Come. Breathe deeply. Let the forest heal you.


Scientific background & further reading:

  • Li Q. et al. (many papers on phytoncides & NK cells) – PubMed
  • Forest Environment & Human Health – Japanese Society of Forest Medicine
  • Multiple Chinese studies on Taihang secondary forest restoration (CNKI)

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