Flower litters of alpine plants affect soil nitrogen and phosphorus rapidly in the eastern Tibetan Plateau
文献类型：期刊论文
| 作者 | Wang, JN; Xu, B; Wu, Y; Gao, J; Shi, FS; Shi, FS (reprint author), Chinese Acad Sci, Chengdu Inst Biol, CAS Key Lab Mt Ecol Restorat & Bioresource Utiliz, Chengdu 610041, Peoples R China.; Shi, FS (reprint author), Chinese Acad Sci, Chengdu Inst Biol, Ecol Restorat & Biodivers Conservat Key Lab Sichu, Chengdu 610041, Peoples R China. |
| 刊名 | BIOGEOSCIENCES
 |
| 出版日期 | 2016 |
| 卷号 | 13期号:19页码:5619-5631 |
| DOI | 10.5194/bg-13-5619-2016 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Litters of reproductive organs have rarely been studied despite their role in allocating nutrients for offspring reproduction. This study determines the mechanism through which flower litters efficiently increase the available soil nutrient pool. Field experiments were conducted to collect plant litters and calculate biomass production in an alpine meadow of the eastern Tibetan Plateau. C, N, P, lignin, cellulose content, and their relevant ratios of litters were analyzed to identify their decomposition features. A pot experiment was performed to determine the effects of litter addition on the soil nutrition pool by comparing the treated and control samples. The litter-bag method was used to verify decomposition rates. The flower litters of phanerophyte plants were comparable with non-flower litters. Biomass partitioning of other herbaceous species accounted for 10-40% of the aboveground biomass. Flower litter possessed significantly higher N and P levels but less C / N, N / P, lignin / N, and lignin and cellulose concentrations than leaf litter. The litter-bag experiment confirmed that the flower litters of Rhododendron przewalskii and Meconopsis integrifolia decompose approximately 3 times faster than mixed litters within 50 days. Pot experiment findings indicated that flower litter addition significantly increased the available nutrient pool and soil microbial productivity. The time of litter fall significantly influenced soil available N and P, and soil microbial biomass. Flower litters fed the soil nutrition pool and influenced nutrition cycling in alpine ecosystems more efficiently because of their non-ignorable production, faster decomposition rate, and higher nutrient contents compared with non-flower lit-ters. The underlying mechanism can enrich nutrients, which return to the soil, and non-structural carbohydrates, which feed and enhance the transitions of soil microorganisms. |
| 学科主题 | Environmental Sciences & Ecology ; Geology |
| 资助项目 | 中国科学院山地生态恢复与生物资源利用重点实验室 |
| 语种 | 英语 |
| 资助机构 | International Cooperation Project of Science and Technology Department of Sichuan Province [2014HH0056] ; International Cooperation Project of Science and Technology Department of Sichuan Province [2014HH0056] ; China Postdoctoral Science Foundation [2014M552385] ; China Postdoctoral Science Foundation [2014M552385] ; National Natural Science Foundation of China [31400389] ; National Natural Science Foundation of China [31400389] ; International Cooperation Project of Science and Technology Department of Sichuan Province [2014HH0056] ; International Cooperation Project of Science and Technology Department of Sichuan Province [2014HH0056] ; China Postdoctoral Science Foundation [2014M552385] ; China Postdoctoral Science Foundation [2014M552385] ; National Natural Science Foundation of China [31400389] ; National Natural Science Foundation of China [31400389] |
| 源URL | [http://210.75.237.14/handle/351003/28100]  |
| 专题 | 成都生物研究所_生态研究 |
| 通讯作者 | Shi, FS (reprint author), Chinese Acad Sci, Chengdu Inst Biol, CAS Key Lab Mt Ecol Restorat & Bioresource Utiliz, Chengdu 610041, Peoples R China.; Shi, FS (reprint author), Chinese Acad Sci, Chengdu Inst Biol, Ecol Restorat & Biodivers Conservat Key Lab Sichu, Chengdu 610041, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Wang, JN,Xu, B,Wu, Y,et al. Flower litters of alpine plants affect soil nitrogen and phosphorus rapidly in the eastern Tibetan Plateau[J]. BIOGEOSCIENCES,2016,13(19):5619-5631. |
| APA | Wang, JN.,Xu, B.,Wu, Y.,Gao, J.,Shi, FS.,...&Shi, FS .(2016).Flower litters of alpine plants affect soil nitrogen and phosphorus rapidly in the eastern Tibetan Plateau.BIOGEOSCIENCES,13(19),5619-5631. |
| MLA | Wang, JN,et al."Flower litters of alpine plants affect soil nitrogen and phosphorus rapidly in the eastern Tibetan Plateau".BIOGEOSCIENCES 13.19(2016):5619-5631. |
入库方式： OAI收割
来源：成都生物研究所
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