川藏线进藏路线拆解与海拔应对 | Sichuan-Tibet Highway: Route Breakdown & Altitude Tips

路线概览 / Route Overview

川藏南线（G318）从成都到拉萨全长约2,150公里，翻越14座海拔4,000m以上的山口，是中国最壮美的自驾公路。全程需7-10天，途经康定、理塘、芒康、左贡、林芝。路况以柏油路为主，部分路段雨季有滑坡和落石风险。

The southern Sichuan-Tibet Route (G318) spans about 2,150 km from Chengdu to Lhasa, crossing 14 mountain passes above 4,000m. Allow 7-10 days, passing through Kangding, Litang, Mangkang, Zuogong, and Nyingchi. Mostly paved, but some sections risk landslides and rockfall during rainy season.

分段海拔与亮点 / Stage-by-Stage

成都到康定（280km）：海拔从500m升至2,560m，泸定桥、折多山口（4,298m，第一个高海拔考验）。

Chengdu to Kangding (280km): Elevation rises from 500m to 2,560m. Luding Bridge, Zheduo Pass (4,298m, your first real altitude test).

康定到理塘（280km）：翻越高尔寺山和剪子弯山，到达世界高城理塘（4,014m）。

Kangding to Litang (280km): Cross Gaoersi and Jianziwan mountains to reach Litang (4,014m).

理塘到左贡（450km）：穿越金沙江和澜沧江峡谷，海拔剧烈起伏（2,600m-4,600m），弯道密集。

Litang to Zuogong (450km): Cross Jinsha and Lancang River gorges with dramatic elevation swings, dense hairpin turns.

左贡到林芝（580km）：经然乌湖（冰川堰塞湖）、米堆冰川（门票50元）、鲁朗林海，通麦天险已修通隧道。

Zuogong to Nyingchi (580km): Via Ranwu Lake, Midui Glacier (50 yuan), Lulang Forest. Tongmai section now has tunnels.

林芝到拉萨（400km）：林拉高速全程高速公路，4小时直达。沿途可绕行巴松措（门票120元）。

高反应对 / Altitude Sickness Prevention

出发前一周开始服用红景天。到达3,500m以上地区头两天不洗澡、不跑步、不饮酒。头痛时服用布洛芬，严重时吸氧或下撤至低海拔。理塘和邦达是高反高发地点，建议不在4,000m以上地区过夜。

Start taking Rhodiola rosea one week before departure. For the first two days above 3,500m: no showers, no running, no alcohol. Take ibuprofen for headaches; use oxygen or descend if symptoms are severe.