高级检索+
何平, 肖宜安, 李晓红. 江西珍稀濒危植物优先保护定量研究[J]. 植物科学学报, 2003, 21(5): 423-428.
引用本文: 何平, 肖宜安, 李晓红. 江西珍稀濒危植物优先保护定量研究[J]. 植物科学学报, 2003, 21(5): 423-428.
HE Ping, XIAO Yi-An, LI Xiao-Hong. Quantitative Study of Conservation Priority of the Rare and Threatened Plants in Jiangxi Province[J]. Plant Science Journal, 2003, 21(5): 423-428.
Citation: HE Ping, XIAO Yi-An, LI Xiao-Hong. Quantitative Study of Conservation Priority of the Rare and Threatened Plants in Jiangxi Province[J]. Plant Science Journal, 2003, 21(5): 423-428.

江西珍稀濒危植物优先保护定量研究

Quantitative Study of Conservation Priority of the Rare and Threatened Plants in Jiangxi Province

  • 摘要: 以江西省50种珍稀濒危植物为定量研究对象,采用以濒危系数、遗传价值系数、物种价值系数和生物学特征系数4个指标构成的珍稀濒危植物等级综合评价值的方法对上述植物优先保护顺序进行了定量研究。对50种珍稀植物进行排序的结果基本符合《中国珍稀濒危植物》和《中国植物红皮书》第1册的分析,但也有不同:属一级保护的有长柄双花木、天目木姜子和长序榆等共10种,占研究物种总数的20.00%,其中有浙江楠和华东黄杉等2渐危种;二级保护的有胡豆莲、连香树、伯乐树、银钟花等共26种,占52.00%,其中胡豆莲属于濒危种;三级的有小花木兰、观光木等12种,占24.00%,其中有4种属稀有种,8种属渐危种;此外,八角莲、野大豆等在江西可以暂不列入保护,这两者均属渐危种,占4.00%。

     

    Abstract: In this paper,4 assessment indexes of synthetic assessment value of the rare and threa tened wild plant conservation grade, i.e.,Threatened Coefficient (Ct),Genetic Coefficient (Cg), Specific Value Coefficient (Cs) and Bio-character Coefficient (Cb) were used, we studied the conservation priority of 50 rare and threatened plant species in Jiangxi Province. The quantitative study indicates that the 50 rare and threatened species are assessed into 4 conservation grades, which shows certain variation from the grade assessment in the book "The Rare and Endangered Plants in China" and "The Red book of Plants in China". Ten species, e.g., Euchresta japonica, Cercidiphyllum japonicum etc., fall into the first conservation class, occupying 20.00% of the total. Among the above mentioned 10 species, there are 2 species, i.e., Phoebe chekiangensis and Pseudolarix gaussonii are the vulnerable species. Twenty six species such as E. japonica, C. japonicum, Bretschneidera sinensis and Halesia macgregorii, occupying 52.00% of the total, are assessed as the second conservation class. Among these species, the E. japonica Hook. f. et Regel is a threatened species. Twelve species such as Magnolia sieboldii,Tsoongiodendron odo rum, etc., are listed in the third conservation class, occupying 24.00% of the total; Among which there are 4 rare species, such as Tapsicia sinensis, T. odorum, etc. and 8 vulnerable species, such as M. sieboldii and P. bournei, etc. The rest 2 species e.g., Dysosma versipellis and Glycine soja which are all vulnerable species are excluded from the priority conservation enumeration in Jiangxi Province.

     

/

返回文章
返回