摘要
本文全面分析比较了横断山与祁连山地区自然地理条件与特征,以及它们对发展大农业的影响,指出了该区自然资源合理利用与环境保护的途径。
Both of the Hengduan Mts.Region and Qilian Mts.Region are the border
montane ranges of the Qinghai-Xizang Plateau.Yet, the former is located
on its subhumid southeastern border, with montane needle-leaved forests
and alpine meadow as domimant vegetatien; while the latter on its semia-
rid northeastern border, under the domonation of montane and alpine ste-
ppes.
Both them are characterized by vertical zonation.Yet, the former is more
conspicuous and varied, with N-S aligned high mountains-deep gorges as
dominant landscape; while the latter is essentially W-S trending high mo-
untains interspersed with broad valleys.
Agriculturally, both are featured by vertical productive systems, with
farming in low valleys, forestry and animal husbandry on montane slopes
under eternal snow on montane tops.Only in the Hengduan Mts.region the
vertical spectra are more varied and forests are quite outstanding; while in
Qilian Mts.Region forestry is rather insignificant.Each has a harsh ecolo-
gical environment for agricultural development, but there are some diff-
erentiations in major physical constraints.
出处
《干旱区资源与环境》
CSCD
1992年第3期1-8,共8页
Journal of Arid Land Resources and Environment
关键词
横断山区
祁连山区
自然地理条件
Hengduan Mts. Region
Qilian Mts. Region
Physico-geographical Condition
Agricultural Sesytem
