J Syst Evol ›› 1992, Vol. 30 ›› Issue (4): 349-355.
• Research Articles •
Lian Yong‐Shan, Chen Xue‐Lin
Hippophae rhamnoides L. subsp. sinensis Rousi is confined to China.
The subspecies, a primitive member of the genus, is one of important plant
resources for food and medicinal industry and also a genetic resource for breeding.
The subspecies ranges from Southwest to Northeast China, i .e .from the northeast
part of Tibet to the sourthwest corner of the Da Hinggan Mountains ,through
Loess Plateau. Made in this paper was an analysis of the limits of tolerance, the
limiting factors and the fittest value, and of ecological factors regulating the
distribution area of the subspecies such as heat, sunshine and rainfall. The analysis is based on comparison of the similarities between the distribution range and
the isolines of the various ecological factors, combined with the field work of the
subspecies. The result indicates that not only does the bush of Hippophae
rhamnoides L. subsp. sinensis Rousi occupy a stable geographical range, but also
it shows a zonal distribution pattern, controlled by rainfall and heat. Its geographical range is roughly located in the transitional zone of three vegetation regions in China, i.e. the east moist forest region, the northwest desert and
steppe region and the Qinghai-Xizang Plateau alpine vegetation region. Therefore,
the bush can be used for delimitating the three vegetation regions. This fact
implies that the concept should be revised that the distribution of bushes is not of
obvious horizontal-zonal pattern. Also discussed in the present paper are ecological
conditions for the artificial Seabuckthron’s garden, the relationship between thegeographical range and the planting system in agriculture as well as the afforestation.
Hippophae rhamnoides L. subsp. Sinensis,
Zonation of vegetation,
Lian Yong‐Shan, Chen Xue‐Lin. The Ecogeographical Distribution of Hippophae rhamnoides Subsp. sinensis and Its Phytogeographical Significance[J]. J Syst Evol, 1992, 30(4): 349-355.
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