Abstract
The poor soil and the single vegetation in arid land are the important indexes of the site quality, which are revealed through the presence or absence of vegetation and patch distribution of different population in level structure. Heterogeneity of patch distribution is unchangeable in scale transition. The ability of anti-destruction and restoring is weak according to the site quality. So the young trees and the seedlings survived in the destruction of primitive vegetation restore to climax with a single dominant species through a long time. This provides a research basis on dynamics behavior by using the most famous population model in ecology. Control parameters in the dynamics model are analyzed comprehensively by using the combination of various control factors, the controlled changes are studied by the quantitative means. After debugging the value interval of various controlling factors , the value interval of the best index and of the dangerous index£¬this paper provides the actual value interval which is operable easily .The sample area for this paper is Fukang county in Xinjiang, whose longitude is E87°46'~88°44' and latitude is N43°45'~45°29' 8".
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Guangyao Ren, Xiaoling Pan, Xinchun Liu, Subai Anabiek, "Analysis of the control index of desert vegetation in dynamics and restoring strategy", Proc. SPIE 4890, Ecosystems Dynamics, Ecosystem-Society Interactions, and Remote Sensing Applications for Semi-Arid and Arid Land, (14 July 2003); doi: 10.1117/12.466738; https://doi.org/10.1117/12.466738
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