Vegetation restoration drives the dynamics and distribution of nitrogen and phosphorous pools in a temperate desert soil-plant system
文献类型：期刊论文
| 作者 | Yang Haotian; Wang Zengru; Li Xiaojun; Gao Yanhong |
| 刊名 | Journal of environmental management
 |
| 出版日期 | 2019-09-01 |
| 卷号 | 245页码:200-209 |
| ISSN号 | 0301-4797 |
| 关键词 | Nitrogen pool Phosphorous pool Distribution patterns Vegetation restoration Restoration series |
| DOI | 10.1016/j.jenvman.2019.04.108 |
| 通讯作者 | Wang zengru(surgeriver@gmail.com) |
| 英文摘要 | The role vegetation restoration and succession play in regulating nitrogen (n) and phosphorous (p) pools remains unexplored and poorly understood. to examine the effects of vegetation restoration and succession from a shifting sand dune to restored vegetation at different ages (23, 33, 50, and 58 years) on the dynamics and distribution of n and p pools in a soil-plant system, a comprehensive field investigation was conducted and n(p) concentrations and densities of soil, shrubs (including leaves, new branches, aging branches, and roots), and grass (including aboveground, roots, and litter) at each site were analyzed and quantified. we found that total n (tn) and total p (tp) density for the plant-soil system, in live shrub biomass as well as soil tn (stn) density in subsoil (10-100 cm), decreased between 23 and 50 years, and then increased from 50 to 58 years. stn and soil tp (stp) densities in topsoil (0-10 cm), and n and p densities of herbage and dead shrubs, continued to increase with restoration. n and p were primarily stored in soils and accounted for 89.83%-92.06% and 99.33%-99.48% of the tn and tp pools, respectively. in the first 23 years, live shrubs made up the second largest n and p pools, however, herbage made up the second largest n and p pools after 23 years. the ratios of n and p in herbage to tn and tp density increased from 3.71% to 6.31%, and 0.33%-0.43%, gradually approaching the native site (6.39% and 0.46%). the ratios of n and p in live shrubs to tn and tp density in the soil-plant system decreased from 4.55% to 1.08% and from 0.33% to 0.13%. our results indicated that the restored ecosystem was a n(p) source from 0 to 50 (0-23) years, and a n(p) sink from 50 to 58 (23-58) years, with strong potential for accumulating more n (147.18 g m(-2)) and p (102.67 g m(-2)) to reach the natural site levels. these results suggest that vegetation restoration and succession may profoundly alter n and p geochemical cycles through n(p) redistribution in a temperate desert plant-soil system. proper n and p addition at the initial stage of vegetation restoration may promote the recovery of desertified land. |
| 收录类别 | SCI |
| WOS关键词 | TENGGER DESERT ; LIMITATION ; CARBON ; ECOSYSTEMS ; LAND ; TRANSFORMATIONS ; REVEGETATION ; RESORPTION ; NUTRIENTS ; RESPONSES |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| 语种 | 英语 |
| 出版者 | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000473380300022 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555379 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Wang Zengru |
| 作者单位 | Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Shapotou Desert Res & Expt Stn, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang Haotian,Wang Zengru,Li Xiaojun,et al. Vegetation restoration drives the dynamics and distribution of nitrogen and phosphorous pools in a temperate desert soil-plant system[J]. Journal of environmental management,2019,245:200-209. |
| APA | Yang Haotian,Wang Zengru,Li Xiaojun,&Gao Yanhong.(2019).Vegetation restoration drives the dynamics and distribution of nitrogen and phosphorous pools in a temperate desert soil-plant system.Journal of environmental management,245,200-209. |
| MLA | Yang Haotian,et al."Vegetation restoration drives the dynamics and distribution of nitrogen and phosphorous pools in a temperate desert soil-plant system".Journal of environmental management 245(2019):200-209. |
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来源：寒区旱区环境与工程研究所
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