Leaching disturbed the altitudinal distribution of soil organic phosphorus in subalpine coniferous forests on Mt. Gongga, SW China
文献类型：期刊论文
| 作者 | He, Xiaoli1,2 ; Zhou, Jun1; Wu, Yanhong1; Bing, Haijian1; Sun, Hongyang1; Wang, Jipeng3
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| 刊名 | GEODERMA
 |
| 出版日期 | 2018-09-15 |
| 卷号 | 326页码:144-155 |
| 关键词 | Organic phosphorus fractions Bioavailable phosphorus Altitudinal distribution Leaching P loss Subalpine ecosystem |
| ISSN号 | 0016-7061 |
| DOI | 10.1016/j.geoderma.2018.04.015 |
| 英文摘要 | Little information is available about the leaching effects on the altitudinal distribution of soil organic phosphorus (OP), even though this process commonly occurs in most humid montane. Our aims were to decipher spatial variations in OP fractions and to clarify the effects of leaching on these variations along the altitudinal gradient (2628, 2781, 3044 and 3210 m a.s.l.) on Mt. Gongga, southwest China. The results showed that the stocks of total OP (TOP) and moderately resistant OP (MROP) increased roughly upslope, with their minimums (824.69 and 410.56 kg ha(-1), respectively) at 2781 m. The concentrations and stocks of labile OP (LOP) markedly increased with altitude. The stocks of moderately labile OP (MLOP) and highly resistant OP (HROP) did not vary significantly among the four sites. The TOP distribution was likely related to the decrease of mineralization rate caused by the decreasing temperature upslope, and also disturbed by the leaching process. In addition, distributions of other P fractions were also regulated by this process. A larger loss of bioavailable P (Bio-P) occurred at the lower altitudes (2628 and 2781 m) due to more intensive leaching. This larger loss was compensated by microbial processes, as sharp decline in microbial biomass P and intensive mineralization of LOP via higher enzyme activities were observed. The MLOP and MROP were the main OP fractions that were downward migrated with fulvic acids, amorphous Fe and Al. The results highlight the role of leaching in regulating distributions of OP and Bio-P along altitudinal gradients in montane ecosystems. |
| 语种 | 英语 |
| WOS记录号 | WOS:000433648800013 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.imde.ac.cn/handle/131551/21446]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 通讯作者 | Wu, Yanhong |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Mt Surface Proc & Ecol Regulat, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Pro, Chengdu 610059, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Xiaoli,Zhou, Jun,Wu, Yanhong,et al. Leaching disturbed the altitudinal distribution of soil organic phosphorus in subalpine coniferous forests on Mt. Gongga, SW China[J]. GEODERMA,2018,326:144-155. |
| APA | He, Xiaoli,Zhou, Jun,Wu, Yanhong,Bing, Haijian,Sun, Hongyang,&Wang, Jipeng.(2018).Leaching disturbed the altitudinal distribution of soil organic phosphorus in subalpine coniferous forests on Mt. Gongga, SW China.GEODERMA,326,144-155. |
| MLA | He, Xiaoli,et al."Leaching disturbed the altitudinal distribution of soil organic phosphorus in subalpine coniferous forests on Mt. Gongga, SW China".GEODERMA 326(2018):144-155. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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