JOURNAL OF NATURAL RESOURCES ›› 1996, Vol. 11 ›› Issue (3): 249-255.doi: 10.11849/zrzyxb.1996.03.009

• Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS • Previous Articles     Next Articles

A STUDY ON THE MATHEMATICAL MODEL OF THE VERTICAL DISTRIBUTION OF NATURAL BELTS IN THE SOUTHEASTERN PART OF THE QINGHAI-TIBET PLATEAU AND THEIR ECOLOGICAL ANALYSIS

Zheng Yuanchang, Wang Meijuan, Wu Zhengfang   

  1. Institute of Geography, Chinese Academy of Sciences
  • Online:1996-09-25 Published:1996-09-25

Abstract: With the three-dimensional mathematical model, namely, H=exp(a+bx+cx2+dy+ey2),the vertical distribution laws of natural belts in the southeastern part of the Qinghai-Tibet Plateau are studied in this paper. The warmth index (WI) and cold index (CI) of the upper limits of the evergreen broad-leaf forest, the coniferous and broad-leaf mixed forest, the montana dark coniferous forest, and the alpine shrub and meadow belt are 65℃ · month,43℃· month, 16℃· month and 10℃·month, and -10℃·month, -24℃· month,-55℃ month and -75℃· month respectively. The potential evaporation values of them are 620mm, 500mm, 410mm and 300mm respectively.

Key words: the southeastern part of the Qinghai-Tibet Plateau, vertical belt, mathematical model, ecological analysis