|Table of Contents|

Drought Resistance of Four Plant Species in Ecological Regeneration on  Mining Area Under Drought Stress(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年12期
Page:
61-64
Research Field:
Publishing date:

Info

Title:
Drought Resistance of Four Plant Species in Ecological Regeneration on  Mining Area Under Drought Stress
Author(s):
YU Li-lin1; 2; PEI Zong-ping1; 2; KONG Jing1; 2; TU Yong-cheng1; 2; PAN Ling-xiao1; 2
1.Jiangsu Key Laboratory of Resources and Environmental Information Engineering,Xuzhou,Jiangsu 221116;
2.School of Environmental and Spatial Informatics,China University of Mining and Technology,Xuzhou,Jiangsu 221116
Keywords:
ecological restoration; drought stress; drought resistant capability; fuzzy membership function analysis; grey correlation analysis
PACS:
Q 945.78
DOI:
-
Abstract:
In order to research the mechanism of drought resistance of different plants under drought stress,4 kinds of plant species that typical in the ecological regeneration on arid region,including Sedum spectabile Boreau, Astragalus adsurgens Pall,Medicago sativa L. and Poa annua L. were selected,and changes of 6 drought resistance indexes including the relative water content,relative conductivity,chlorophyll content,contents of proline,malondialdehyde and soluble carbohydrate were measured with potted controlled water.Then the fuzzy membership function analysis to integrated evaluate plant drought resistance were used,and the grey correlation analysis to analyze the association between 6 drought indicators and plant drought resistance were adopted.The results showed that,the drought resistant capability of 4 arid region plants was in order of Sedum spectabile Boreau>Poa annua L.>Medicago sativa L.>Astragalus adsurgens Pall,and the relational degree order about each index of drought resistance and average subordinate function values was：chlorophyll content (0.9727),relative water content (0.9387),soluble carbohydrate (0.8314),malondialdehyde content (0.7940),relative conductivity (0.6320),content of proline (0.4528).So,chlorophyll content,relative water content and soluble carbohydrate were the most sensitive indexes to drought environment and can be accepted as the indexes of evaluating and selecting the drought resistant plant species for ecological regeneration on mining area.

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Last Update: 2014-08-19