STEPPE
GOBI
ALTAI
45° N, 85° E
50° N, 105° E
1170
1190
1210
1230
PLUVIAL
$1170 \le t \le 1230$
$\rho(D, R) \approx 0.85$
$\lambda_{veg} \ge 4.2 \text{ / m}^2$
$\lambda_{veg} \le 0.8 \text{ / m}^2$