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Study On The Adaptability And Influencing Factors Of Ornamental Plants In Wuhan Iron And Steel Industrial District

Posted on:2004-09-12Degree:MasterType:Thesis
Country:ChinaCandidate:X L ZhengFull Text:PDF
GTID:2121360095460893Subject:Garden Plants and Ornamental Horticulture
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Along with the putting forward of the sustainable development strategy, and with the strengthening of the environmental consciousness, people are increasingly attaching importance to the construction of the greenland in industrial district. Because of the special environment in industrial district, we should take into account the adaptability of the ornamental plants to the environment first in choosing plant species. But up to the present, the researchers mostly judged the adaptability of the plant to the environment qualitatively only from the growth status, lacking of the quantitative study on influencing factors, and they always measured the resistance of the plants to particular pollutant through the fumigation experiment, did not combine the actual growth environmental condition of the plants. In this project, the growth situation of ornamental plants in Wuhan Iron and Steel Industrial District was studied. The adaptabilities of the plant species to the special environment were analyzed. We also monitored the atmosphere and the soil conditions, and studied the predominant influencing factors of the plants. The whole results are helpful to optimize and select the suitable ornamental plant species for industrial district.The atmosphere pollution monitoring showed that, the pollution was severe in sintering district and coking district, the content of SO2 and TSP went beyond the criterion. In siliceous steel district and steel-making district, the content of SO2 was correspondingly low, but the TSP was also high. The living district was far away from the mill, so the atmosphere environment was correspondingly good. The soil factors analysis showed that, in greenland of Wuhan Iron and Steel Industrial District, the pH value and the rigidity of the soil was high, and the content of organic matter and kalium was shot, while the nitrogen was not very abundant. The survey to the plants growth situation showed that, different species in the same district had different growth situation, and the same species in different district had difference in growth too. There were no species which growed well or badly in every district.The adaptability analysis of the ornamental plants in different district showed that, in coking district, a majority of plants had poor growth situation, only Ligustrum lucidum and Sabina chinensis cv.'Kaizuka' had good adaptability, Mahonia fortunei, Osmanthus fragrans, Cedrus deodara, Sabina chinensis and Photinia serrulata growed badly. In siliceous steel district, the plants growed well. Nerium indicum, Punica granatum, Broussonetia papyrifera, Pittosporum tobira, Euonymus japonicus. Hibiscus syriacusand Jasminum mesnyi had excellent growth situation, only Eriobotrya japonica and Osmcmthus fragrans growed badly. In sintering district, the environmental conditions were very harmful to the plants, so only Nerium indicum could grow normally, and Lagerstroemia indica, Ligustrum lucidum, Magnolia grandiflora, Platanus acerifolia, Parthenocisus tricuspidata, Yucca gloriosa and Eriobotrya japonica couldn't grow well and couldn't be suitable for sintering district. In steel-making works, the plants growed well. Nerium indicum, Jasminum mesny, Salix matsudana and Ligustrum lucidum had strong adaptability to the steel-making district, but Lagerstroemia indica and Photinia serrulata couldn't grow well. In living district, Magnolia denudata, Euonymusjaponicus, Pittosporum tobira and Platanus acerifolia had good growth situation, but Osmanthus fragrans and Cedrus deodara growed badly with some injured symptom.The analysis of the influencing factors of the plants showed, the predominant factors that influence the growth of Viburnum awabuk were the content of atmosphere 862 and the rigidity of the soil. Its appropriate growth environmental condition should be the areas in which the content of atmosphere SO2 is low and the rigidity of the soil is low. The growth of Cinnamomum camphora was mainly influenced by the content of atmosphere SO2 and the content of rapidly available phosphorus, the hi...
Keywords/Search Tags:industrial district, ornamental plant, adaptability, influencing factor
PDF Full Text Request
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