Table 1 The main ecological characteristics and the distribution of the four production areas
From: Research progress on quality assurance of genuine Chinese medicinal in Sichuan
| Project | Basin | Mountain area at the edge of basin | Chuan-Xi plateau and Chuan-Xi alpine gorge | Panxi district |
|---|---|---|---|---|
| Main Areas | Cities: Chengdu, Deyang, Mianyang, Ziyang, Meishan, Zigong, Neijiang, Suining, Nanchong, Guang'an | Cities: Yibin, Luzhou, Leshan,, Dazhou, Bazhong, Guangyuan,Yaan (Hanyuan county, Shimian county excepted) | Garze prefecture, Aba prefecture, Liangshan prefecture (Muli county excepted) | Liangshan prefecture (Muli county excepted), Panzhihua city, Ya'an city (Hanyuan county,Shimian county excepted) |
| Landform | Plain,hilly, mountain area | Hilly, mountain area | Alpine gorge and plateau | Mountain are, dry-hot valley, and hilly |
| Climatic zone | Subtropical humid climate | Subtropical humid vertical climate | Northern subtropical zone, temperate zone, frigid vertical climate | Southern subtropical climate, central subtropical climate |
| Annual average temperature(°C) | 15–18 | 13–18 | 0–12 | 16–21 |
| Annual accumulated temperature(°C) | 4700–5200 | 4500–5000 | 600–4500 | 5600–7000 |
| Annual accumulative irradiation time(hours) | 890–1370 | 800–1400 | 2200–3000 | 3200–3300 |
| Annual average precipitation(mm) | 1000–1600 | 800–1800 | 520–890 | 700–1000 |
| Main suitable varieties |
Ligusticum chuanxiong Hort., Aconitum carmichaelii Debx., Ophiopogon japonicus (L. f), Angelica dahurica (Fisch. ex Hoffm.) Benth. et Hook. f, Pinellia ternata (Thunb.) Breit, Salvia miltiorrhiza Bge, Curcuma xvenyujin Y. H. Chen et C. Ling, Curcuma longa L., Alisma orientate (Sam.) Juzep., Paeonia lactiflora Pall., Carthamus tinctorius L., Chuanminshen violaceum Sheh et Shan, Houttuynia cordata Thunb., Psoralea corylifolia L., Citrus medica L. var. sarco dactylis Swingle, Gardenia jasminoides Ellis, Asparagus cochinchinensis (Lour.) Merr., Dendrobium nobile Lindl., Prunus mume (Sieb.) Sieb. et Zucc., Ginkgo biloba L. etc | Eucommia ulmoides Oliv., Magnolia officinalis Rehd. et Wils., Phellodendron chinense Schneid., Coptis chinensis Franch, Lonicera japonica Thunb., Gastrodia elata Bl., Cyathula officinalis Kuan, Platycodon grandiflorum (Jacq.) A. DC., Rheum palmatum L., Curculigo orchioides Gaertn., Aconitum carmichaelii Debx., Asparagus cochinchinensis (Lour.) Merr., Paris polyphylla Smith var. yunnanensis (Franch.) Hand. -Mazz, Bletilla striata (Thunb.) Reichb. f, Euodia rutaecarpa (Juss.) Benth, Fraxinus rhynchophylla Hance, Tremella fuciformis, Dipsacus asper Wall, ex Henry, Quisqualis indica L., Prunus mume (Sieb.) Sieb. et Zucc., Ginkgo biloba L., Stemona sessilifolia (Miq.) etc | Gastrodia elata Bl.、Rheum palmatum L., Fritillaria cirrhosa D.Don, Gentiana macrophylla Pall., Nardostachys jatamansi DC., Herpetospermum pedunculosum(Ser.)C.B.Clarke[Bryonia pedunculosa Ser, Gymnadenia conopsea(L.) R. Br., Notopterygium incisum Ting ex H. T. Chang, Angelica pubescens Maxim, f. biserrata Shan et Yuan, Eleutherococcus giraldii (Harms) Nakai, Rhodiola crenulata (Hook. f. et Thoms.) H. Ohb, Gentiana scabra Bunge, Moschus berezovskii Flerov etc | Paris polyphylla Smith var. yunnanensis (Franch.) Hand. -Mazz, Gastrodia elata Bl., Psoralea corylifolia L., Rheum palmatum L., Phellodendron chinense Schneid., Eucommia ulmoides Oliv., Dipsacus asper Wall, ex Henry, Panax notoginseng (Burk.) F. H. Chen, Aconitum carmichaelii Debx etc |