| 干旱半干旱区生物土壤结皮光合固碳研究进展 |
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| 引用本文： | 贾子毅,吴波,卢琦. 干旱半干旱区生物土壤结皮光合固碳研究进展[J]. 安徽农业科学, 2011, 39(21): 12768-12770,12833 |
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| 作者姓名： | 贾子毅 吴波 卢琦 |
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| 作者单位： | 中国林业科学研究院荒漠化研究所,北京,100091 |
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| 基金项目： | 中国林业科学研究院中央公益性科研院所基本科研业务费专项资金，林业公益性行业专项基金 |
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| 摘 要： | 生物土壤结皮在干旱半干旱区广泛分布。由于结皮中的藻类、苔藓和地衣均能进行光合作用,因此其在全球碳循环过程中可能发挥重要作用。生物土壤结皮的形态适应特征,分析了水分和温度对其光合作用的调控,比较了不同类型生物土壤结皮的光合速率,最后对估算其碳固定量中存在的问题进行了讨论。
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| 关 键 词： | 生物土壤结皮 干旱半干旱区 藻类 苔藓 地衣 光合作用 |
Research Progress of Biological Soil Crusts Photosynthesis in Arid and Semiarid Regions |
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| Affiliation: | JIA Zi-yi et al(Institute of Desertification Studies,Chinese Academy of Forestry,Beijing 100091) |
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| Abstract: | Biological soil crusts(BSC) exist in arid and semiarid regions around the world.They may play an important role in the global carbon exchange for they can carry on photosynthesis.In the paper,the morphology structure characteristics of BSC have been overviewed and the regulation of water and temperature on photosynthesis of BSC has been discussed,then photosynthesis rates of different kinds and successional stages of BSC have been compared.Finally,the question on how to estimate the amount of carbon dioxide fixation of BSC has been analyzed. |
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| Keywords: | Biological soil crust Arid and semiarid regions Algae Moss Lichen Photosynthesis |
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