Acta Geographica Sinica ›› 2013, Vol. 68 ›› Issue (11): 1538-1548.doi: 10.11821/dlxb201311009

Previous Articles     Next Articles

Identifying plant priority conservation areas based on the NPWP distribution in Yunnan, China

YANG Feiling1,2, HU Jinming1,2, WU Ruidong1,2   

  1. 1. Asian International Rivers Center, Yunnan University, Kunming 650091, China;
    2. Yunnan Key Lab of International Rivers and Transboundary Eco-security, Kunming 650091, China
  • Received:2013-08-12 Revised:2013-09-23 Online:2013-11-20 Published:2014-01-07
  • Supported by:
    National Key Technologies R&D Program of China, No.2011BAC09B07; National Natural Science Foundation of China, No.31260148; National Special Basic Research Fund, No.2008FY110300; Graduate Student Research Foundation of Yunnan university, No. ynuy201226

Abstract: The function upgrading and spatial structure optimization of nature reserve networks are currently the core task of biodiversity conservation in Yunnan. The identification of priority conservation areas and the assessment of their protection status are the premises for fulfilling this task. This study used the National Protected Wild Plants (NPWP) as indicator species, and then based on the county (city or district) level NPWP distribution data, we applied Dobson algorithm to identify the plant priority conservation areas in terms of the 75% and 100% NPWP conservation levels. Then we used the information of existing nature reserves to assess the protection status of the plant priority conservation areas and sub-ecoregions in Yunnan. Results show that: in terms of the 75% and 100% NPWP conservation levels, seven and twenty-four counties (cities, districts) were identified as priority conservation areas, respectively. The former seven priority areas are critical for plant conservation. The coverage percentages of nature reserves of four and eight identified priority conservation areas were less than 5% in terms of the 75% and 100% NPWP conservation levels. It is urgent to strengthen the upgrading of existing nature reserves or even construct new nature reserves in these identified priority areas with low conservation level. The percentages of nature reserves of two ecoregions and seven sub-ecoregions do not meet the conservation target in 2010 (10% ) set by Global Strategy for Plant Conservation. Three sub-ecoregions should be included in the nature reserve network systems in Yunnan.

Key words: national protected wild plants, eco-region, Yunnan Province, nature reserves, plant priority conservation areas, protection status