Biodiversity Science ›› 2000, Vol. 08 ›› Issue (2): 153-162.doi: 10.17520/biods.2000022

• 论文 • Previous Article     Next Article

The natural distribution and characteristics of the rare and endangered plants in Jiangsu, China

HAO Ri-Ming, HUANG Zhi-Yuan, LIU Xing-Jian, WANG Zhong-Lei, XU Hui-Qiang, YAO Zhi-Gang   

  1. 1) Jiangsu Institute of Botany , Chinese Academy of Sciences , Nanjing  210014
    2) Forestry Bureau of Jiangsu Province , Nanjing  210013
  • Received:1999-04-12 Revised:2000-01-18 Online:2000-05-20

Jiangsu Province is located along the lower reaches of the Yangtze River in the northern part of the subtropical zone. Its plain has been cultivated , and the hilly and mountainous land makes up 15 % of the total area , and its great majority is widely brought under cultivation with artificial forests and woody economic crops such as Phyllostachys pubescens , Camellia sinensis , Castanea mollissima , Cunninghamia lanceolata and Pinus massoniana ,etc. Natural vegetation is formed by deciduous broad-leaved forest that contains evergreen broad-leaved elements , which can be found only in the ridge of some hills and the fringe of some gullies , and have been classified as a framentational distribution type. There are 17 species of rare and endangered plants in Jiangsu. Of them , Parrotia subaequalis , Magnolia zenii , Magnolia ameona , Pseudolarix amabilis , Changnienia amoena , Ulmus chenmoui , Glehnia littoralis and Cinnamomum camphora are distributed in sporadic area and have become rare. Sinojackia xylocarpa , Emmenopterys henryi , Isotes sinensis and Ceratopteris thalict roides were found in some areas , but seemed extinct in recent years. Because of over- utilization , the habitats of Pteroceltis tatarinowii , Zelkova schneideriana and Changium smyrnioides have been rapidly deteriorated. B rachystachyum densif lorum and Glycine soja have often been found in their suitable habitats. These species are classified into 16 genera of 13 families. Of them , the antique floristic elements — Parrotia , Changium , Sinojackia , Emmenopterys , Pseudolarix , Pteroceltis , Glehnia and Changnienia are monotypic genera or oligotypic genera with an isolated position in phylogenies. Most of the rare and endangered plants are distributed in the south of Jiangsu , while some of them , such as Emmenopterys henryi , Pseudolarix amabilis and Magnolia ameona , are located on the northern fringe of their distribution area. The habitat fragmentation caused by human activities , the edge-effects of their marginal distribution and human destruction have synthetically led to the degeneration of primary habitats , reduction of population sizes and endangerment of these species.

No related articles found!
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
[1] ZHOU Hua-Kun, ZHOU Xing-Min, ZHAO Xin-Quan, JULIA Klein. A Preliminary Study of the Influence of Simulated Greenhouse Effect on a Kobresia humilis Meadow[J]. Chin J Plan Ecolo, 2000, 24(5): 547 -553 .
[2] WU Ya-Cong, LI Zheng-Cai, CHENG Cai-Fang, LIU Rong-Jie, WANG Bin, and GERI Le-Tu. Effects of understory removal on forest carbon storage in Cinnamomum camphora plantation ecosystem[J]. Chin J Plan Ecolo, 2013, 37(2): 142 -149 .
[3] ZHOU Zhi-Qiang, LIU Tong, YUAN Ji-Lian. POPULATION CHARACTERISTICS OF YEW (TAXUS CUSPIDATA) IN THE MULING YEW NATURE RESERVE, HEILONGJIANG PROVINCE[J]. Chin J Plan Ecolo, 2004, 28(4): 476 -482 .
[4] Chao Shi and Lang-Lai Xu. Characters of cysteine endopeptidases in wheat endosperms during seed germination and subsequent seedling growth[J]. J Integr Plant Biol, 2009, 51(1): 52 -57 .
[5] Minako Kaneda, Kim Rensing, and Lacey Samuels. Secondary Cell Wall Deposition in Developing Secondary Xylem of Poplar[J]. J Integr Plant Biol, 2010, 52(2): 234 -243 .
[6] Yi Han, Wei Xuan, Tian Yu, Wen-Bing Fang, Tian-Ling Lou, Yin Gao, Xiao-Yue Chen, Xiao Xiao and Wen-Biao Shen. Exogenous Hematin Alleviates Mercury-induced Oxidative Damage in the Roots of Medicago sativa[J]. J Integr Plant Biol, 2007, 49(12): 1703 -1713 .
[7] HOU Yuan-Tong, LU Fa-Jun, QU Chang-You, LI Fa-Zeng. Three new species in the genus Polygonum (Polygonaceae) from China[J]. J Syst Evol, 2006, 44(2): 165 -167 .
[8] Fang Liu,Xiujiang Su,Diqiang Li,Benzhong Wang,Ziliang Zhang. Using camera trap to investigate animal diversity in Hunan Gaowangjie National Nature Reserve[J]. Biodiv Sci, 2014, 22(6): 779 -784 .
[9] FU Hong CHI Zhe-Ru① CHANG Jie FU Cheng-Xin. Extraction of Leaf Vein Features Based on Artificial Neural Network — Studies on the Living Plant Identification Ⅰ[J]. Chin Bull Bot, 2004, 21(04): 429 -436 .
[10] Wen-Kui Dai, Edwin Luguba Kadiori, Qing-Feng Wang, Chun-Feng Yang. Pollen limitation, plasticity in floral traits, and mixed mating system in an alpine plant Pedicularis siphonantha (Orobanchaceae) from different altitudes[J]. J Syst Evol, 2017, 55(3): 192 -199 .