|Table of Contents|

Spatial Distribution Pattern of Artemisia ordosica Population Under Enclosure Condition in Desert Steppe(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2016年01
Page:
45-50
Research Field:
Publishing date:

Info

Title:
Spatial Distribution Pattern of Artemisia ordosica Population Under Enclosure Condition in Desert Steppe
Author(s):
FAN Ruixia1; 2; LI Xuebin1; 2; 3; CHEN Lin1; 2; LIU Xuedong1; 2
(1.Key Laboratory for Restoration and Reconstruction of Degraded Ecosystem in Northwestern China of Ministry of Education，Ningxia University，Yinchuan，Ningxia 750021；2.Key Laboratory Breeding Base for Northwest Land Degradation and Ecological Restoration Province Department，Ningxia University，Yinchuan，Ningxia 750021；3.Office of Science and Technology，Ningxia University，Yinchuan，Ningxia 750021)
Keywords:
desert steppe; enclosure; Artemisia ordosica; point pattern analysis; spatial assocation
PACS:
-
DOI:
10.11937/bfyy.201601013
Abstract:
Artemisia ordosica is the dominant species in desert grassland of Ningxia.The experiment investigated the Artemisia ordosica population under enclosure in desert steppe,discussed the spatial pattern of Artemisia ordosica population in the study area，the spatial pattern in each age class structure，and spatial correlation of different age class with the application of the Ripley’s K(t) coefficient method.The results showed that under the condition of enclosing Artemisia ordosica population belong to the stable population，but due to lack of young individuals，which seriously affected the development of the region of Artemisia ordosica population.In the 0-12 m spatial scale，Artemisia ordosica population was significant aggregation，strength and scale aggregation was different in each size classes of Artemisia ordosica.With the increase of the individual，the aggregation intensity of Artemisia ordosica population gradually weakened.Spatial correlation is different in different developmental stages of Artemisia ordosica population.Between the developmental stages of adjacent at the small scale,the Artemisia ordosica population was strong correlation.With the increasing of scale，there was a decreasing trend of correlation between adjacent development stage；with the population development association，there was a decreasing trend between the developmental stages of adjacent，which showed the spatial distribution and spatial association of A.ordosica population was consistent.

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Last Update: 2016-03-02