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塔里木河下游浅层地下水变化的生态效应及生态系统健康评价研究 >
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http://hdl.handle.net/2239/2180
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| Title: | Ecological and environmental explanation of microbiotic crusts on sand dune scales in the Gurbantonggut Desert, Xinjiang |
| Authors: | Chen, Yaning
Li, Weihong
Zhou, Zhibing
Liu, Jiazhen |
| Keywords: | microbiotic crust
sand done scales
environmental explanation
the Gurbantonggut Desert |
| Issue Date: | Dec-2005 |
| Publisher: | 《Progress in Natural Science》2005，（12）：1089-1095. |
| Abstract: | [英文摘要]：Results obtained from the field investigation and the analysis in laboratory show that many species of microbiotic crusts of lichens,mosses and algae develop extensively in the Gurbantonggut Desert,Xinjiang.The formation,species and distribution are closely related to the environmental conditions at the different positions of sand dunes.The animalcule crusts develop mainly on the mobile or semi-mobile sand surface of dune tops,the alga crusts develop mainly at the upper to middle parts of dune slopes,the lichen crusts develop at middle and lower parts of dune slopes,and the moss crusts are mainly distributed at the lower part of dune slopes and the interdune lowlands.The species,thickness and developing degree of microbiotic crusts increase from the upper part to the middle and lower parts of dune slopes and the interdune lowlands,and an obvious contrast between the microbiotic crusts and the different species of plant communities forms.The development and differentiation of microbiotic crusts at the diffe
Results obtained from the field investigation and the analysis in laboratory show that many species of microbiotic crusts of lichens,mosses and algae develop extensively in the Gurbantonggut Desert,Xinjiang.The formation,species and distribution are closely related to the environmental conditions at the different positions of sand dunes.The animalcule crusts develop mainly on the mobile or semi-mobile sand surface of dune tops,the alga crusts develop mainly at the upper to middle parts of dune slopes,the lichen crusts develop at middle and lower parts of dune slopes,and the moss crusts are mainly distributed at the lower part of dune slopes and the interdune lowlands.The species,thickness and developing degree of microbiotic crusts increase from the upper part to the middle and lower parts of dune slopes and the interdune lowlands,and an obvious contrast between the microbiotic crusts and the different species of plant communities forms.The development and differentiation of microbiotic crusts at the different positions of dunes are the ecological appearance and the natural selection of synntnetic adaptability of the different microbiotic crust species to the local environmental conditions, and are closely related to the ecological conditions, such ar the physiochemical properties of soils and stability of topsoil texture. |
| URI: | http://seekspace.resip.ac.cn/handle/2239/2180 |
| Appears in Collections: | 科学论文
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| EcologicalandenvironmentalexplanationofmicrobioticcrustsonsanddunescalesintheGurbantonggutDesert_Xinjiang.pdf | | 757Kb | Adobe PDF | View/Open |
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