Characteristics of the Populations Age Structureof Three Typical Plantin Kumtag Desert
DOI:
CSTR:
Author:
Affiliation:

State Key Laboratory of Desertification and Aeolian Sand Disaster Combating & Gansu Desert control Research Institut,Research Institute of Forestry,State Key Laboratory of Desertification and Aeolian Sand Disaster Combating & Gansu Desert control Research Institut,State Key Laboratory of Desertification and Aeolian Sand Disaster Combating & Gansu Desert control Research Institut,State Key Laboratory of Desertification and Aeolian Sand Disaster Combating & Gansu Desert control Research Institut

Clc Number:

Fund Project:

  • Article
  • |
  • Figures
  • |
  • Metrics
  • |
  • Reference
  • |
  • Related
  • |
  • Cited by
  • |
  • Materials
  • |
  • Comments
    Abstract:

    Based on the spot investigation, taking the height and ground diameter data as the basis, according to the age pyramid and the fitting equation of age structure, the age structure characteristics, growth status and development trend of the three typical populations of Kumtage desert were studied. The results showed that the age structure of H. ammodendron population was inverted “J” shape curve, and the population was currently in rising stage and was stability. The growth was limited because of their relatively small seedlings number. The age structure of T. taklamakanensis population showed a "bell" shape curve, and it showed similar stabile population characteristics. Bing of the very small number of seedling and the larger proportion of middle age class plants, the development of the population will tend to decline. The age structure of P. euphratica Oliv population has a certain peculiarities and showed a reverse "S" curves. The proportion quantity of middle class and older class plants maintained certain stability, and the large quantity of the small class plant make population has increasing potential. Their own age structure characteristics of three typical populations made them face the different degree threat of survival. So it was necessary to take different protection measures to maintain the population structure's stability and development.

    Reference
    Related
    Cited by
Get Citation

袁宏波,ZHANG Jin-chun, CHU Jian-min, TANG Jin-nian, DING Feng, LIu Shu-juan. Characteristics of the Populations Age Structureof Three Typical Plantin Kumtag Desert[J]. Acta Botanica Boreali-Occidentalia Sinica,2011,31(11):0

Copy
Share
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:July 25,2011
  • Revised:August 22,2011
  • Adopted:September 11,2011
  • Online: November 22,2011
  • Published:
Article QR Code