| 贵阳市区灌木林生态系统生物量及碳储量 |
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| 引用本文： | 宁晨,闫文德,宁晓波,梁小翠,王新凯. 贵阳市区灌木林生态系统生物量及碳储量[J]. 生态学报, 2015, 35(8): 2555-2563 |
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| 作者姓名： | 宁晨 闫文德 宁晓波 梁小翠 王新凯 |
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| 作者单位： | 中南林业科技大学, 长沙 410004;南方林业生态应用技术国家工程实验室, 长沙 410004;湖南会同杉木林生态系统国家野外科学观测研究站, 会同 418307,中南林业科技大学, 长沙 410004;南方林业生态应用技术国家工程实验室, 长沙 410004;湖南会同杉木林生态系统国家野外科学观测研究站, 会同 418307,中南林业科技大学, 长沙 410004;南方林业生态应用技术国家工程实验室, 长沙 410004,中南林业科技大学, 长沙 410004;南方林业生态应用技术国家工程实验室, 长沙 410004;湖南会同杉木林生态系统国家野外科学观测研究站, 会同 418307,中南林业科技大学, 长沙 410004;南方林业生态应用技术国家工程实验室, 长沙 410004 |
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| 基金项目： | 林业公益性行业科研重大专项(201104009);湖南省教育厅高校创新平台建设项目(湘财教字[2010]70号);长沙市科技局项目(K1003009-61) |
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| 摘 要： | 采用直接收获法和实测数据,以贵州省贵阳市区天然灌木林内木本和草本植物、凋落物及土壤为研究对象,研究了灌木林生态系统的生物量、碳含量及碳储量。结果表明:灌木林植被层生物量为23.16 t/hm2,其中木本植物层生物量为12.46 t/hm2;草本植物层为3.74 t/hm2;凋落物层为6.96 t/hm2,分别占植被层生物量的53.08%、16.15%、30.05%。木本植物25种的碳含量范围为445.91—603.46 g/kg;草本植物6种的碳含量为408.48—523.04 g/kg;凋落物层碳含量为341.01—392.81 g/kg;土壤层碳含量为5.73—26.68 g/kg。生态系统总碳储量为88.34 t/hm2,其中植被层为8.10 t/hm2;凋落物层为2.56 t/hm2;土壤层为77.68 t/hm2,分别占系统总碳储量的9.17%、2.89%、87.94%。灌木林生态系统碳储量的空间分布格局为:土壤层植被层凋落物层。研究结果,可为喀斯特城市估算森林生态系统碳储量和碳平衡提供科学依据。
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| 关 键 词： | 喀斯特地区 灌木林生态系统 生物量 碳含量 碳储量 贵阳市 |
| 收稿时间： | 2013-05-12 |
| 修稿时间： | 2014-11-03 |
Biomass and carbon storage of shrub forests ecosystem in karst city |
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| NING Chen,YAN Wende,NING Xiaobo,LIANG Xiaocui and WANG Xinkai. Biomass and carbon storage of shrub forests ecosystem in karst city[J]. Acta Ecologica Sinica, 2015, 35(8): 2555-2563 |
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| Authors: | NING Chen YAN Wende NING Xiaobo LIANG Xiaocui WANG Xinkai |
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| Affiliation: | Central South University of Forestry and Technology, Changsha 410004, China;National Engineering Lab for Applied Technology of Forestry & Ecology in South China, Changsha 410004, China;National Key Station for Field Scientific observation & Experiment, Huitong 418307, China,Central South University of Forestry and Technology, Changsha 410004, China;National Engineering Lab for Applied Technology of Forestry & Ecology in South China, Changsha 410004, China;National Key Station for Field Scientific observation & Experiment, Huitong 418307, China,Central South University of Forestry and Technology, Changsha 410004, China;National Engineering Lab for Applied Technology of Forestry & Ecology in South China, Changsha 410004, China,Central South University of Forestry and Technology, Changsha 410004, China;National Engineering Lab for Applied Technology of Forestry & Ecology in South China, Changsha 410004, China;National Key Station for Field Scientific observation & Experiment, Huitong 418307, China and Central South University of Forestry and Technology, Changsha 410004, China;National Engineering Lab for Applied Technology of Forestry & Ecology in South China, Changsha 410004, China |
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| Abstract: | Biomass, carbon concentration and carbon storage were investigated in the woody plants, herbaceous plants, litter and soil layers in a natural shrub ecosystem in Guiyang city, Guizhou Province. The results showed that biomass of the shrub vegetation was 23.16 t/hm2, of which 12.46 t/hm2 was in the woody plants (53.08% of the total biomass in the shrub vegetation), 3.74 t/hm2 in the herbaceous plants (16.15% of the total biomass) and 6.96 t/hm2 in the litter (30.05% of the total biomass). Carbon concentration ranged from 445.91 to 603.46 g/kg in 25 woody plant species, 408.48-523.04 g/kg in 6 herbaceous plant species, 341.01-392.81 g/kg in litter and 5.73-26.68 g/kg in the soils. The total carbon storage was 88.34 t/hm2 in this natural shrub ecosystem, of which 9.17% was found in the vegetation (8.10 t/hm2), 2.89% in litter (2.56 t/hm2) and 87.94% in the soil components (77.68 t/hm2). The carbon storage in the shrub ecosystem decreased in an order soil component> vegetation component> litter component. Our results provide scientific basis and reference for estimating carbon storage and balance in urban forest ecosystems in the Karst areas. |
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| Keywords: | Karst regions Shrub forests ecosystem Biomass Carbon concentration Carbon stock Guiyang city |
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