Formation, distribution, and nature ofPicea mongolica in China

Abstract

Picea mongolica is an endemic and endangered species in China. Ecosystem made ofPicea mongolica is a special sandy forest ecosystem in China. It is found at ecotone between forest and steppe, or agricultural district and pas toral area. Based on investigation, this paper discussed the formation and distribution ofPicea mongolica and studied its nature according to ecotone theory. It is clarified thatPicea mongolica belongs toPicea meyeri series. That is to say, it became a local race through long-term adaptation to the local climate, then formed allopatric semi-species, and finally turned into a taxonomical species.Picea mongolica forest is a super zonal climax community developing in ecotone between forest zone and steppe zone.

Keywords

Picea mongolica / Formation / Distribution / Nature / Sandy forest / Ecotone / S791.189.03 / A

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