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Scientia Silvae Sinicae ›› 2014, Vol. 50 ›› Issue (11): 44-51.doi: 10.11707/j.1001-7488.20141106

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Investigation of Habitat Characteristics of 14 Wild Rosa Species in Xinjiang

Feng Jiuying1, Cai Lei2, He Haiyang3, Shen Shuxiang4, Zhang Shuling4, Meng Yonglu1, Dai Fanwei1, Xu Zheng5, Gao Junping1   

  1. 1. Department of Ornamental Horticulture and Landscape, China Agricultural University Beijing 100193;
    2. Office of Biodiversity Conservation, Ministry of Environmental Protection Beijing 100035;
    3. Toutunhe District People's Government of Urumqi City Urumqi 830023;
    4. Beijing Changping District Bureau of Parks and Forestry Beijing 102200;
    5. Yili Kazak Autonomous Prefecture Academy of Forestry Yining 835000
  • Received:2013-10-23 Revised:2014-09-08 Online:2014-11-25 Published:2014-12-04

Abstract:

This work is aimed at understanding important habitat characteristics of the genus Rosa in Xinjiang to provide information for assessment, protection and utilization of wild rose resources. Based on a field investigation and previous published literature, we investigated the geographical and meteorological characteristics of 14 wild Rosa species only or majorly distributed in Xinjiang. Results showed that all investigated Rosa species grew in south slope except R. fedtschenkoana and R. acicularis. Elevation distribution was between 1 000-2 000 m for most of these Rosa species, with R. persica, R. berberifolia and R. laxa distributed at lower than 1 000 m. Based on the data of temperature and rainfall, it was inferred that these Rosa species could tolerate the great fluctuate of annual temperature and drought. Among 14 wild Rosa species, R. albertii had the strongest tolerance to freeze, while R. persica and R. berberifolia had the strongest tolerance to heat. We divided the 14 wild Rosa species into 5 groups according to hierarchical cluster analysis of their associated plants. The group V, including R. persica and R. berberifolia, exhibited great difference from other groups, indicating that its habitat characteristics were different from other Rosa species. Correlation analysis of elevation distribution of these Rosa species revealed that elevation distributions of R. persica and R. berberifolia, R. fedtschenkoana and R. acicularis, as well as R. iliensis and R. schrenkiana were significantly correlated, respectively. We also conducted CCA (Canonical Correspondence Analysis) for R. persica which is valuable in breeding however the distribution area is reduced rapidly. Based on data from 18 sampling fields of 6 major distribution areas, we found that elevation, rainfall and average temperature in July were the major factors determining the distribution of R. persica. In summary, our results provided valuable references to evaluation, protection and application of wild Rosa species which are located in Xinjiang.

Key words: wild plant resources, Xinjiang, Rosa, Rosa persica, habitat characteristics, CCA

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