| Leaching disturbed the altitudinal distribution of soil organic phosphorus in subalpine coniferous forests on Mt. Gongga, SW China | |
He, Xiaoli1,2 ; Zhou, Jun1; Wu, Yanhong1; Bing, Haijian1; Sun, Hongyang1; Wang, Jipeng3
| |
| 2018 | |
| Source Publication | GEODERMA
 |
| ISSN | 0016-7061 |
| EISSN | 1872-6259 |
| Volume | 326Pages:144-155 |
| Subtype | Article |
| Abstract | 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. |
| Keyword | Organic phosphorus fractions Bioavailable phosphorus Altitudinal distribution Leaching P loss Subalpine ecosystem |
| DOI | 10.1016/j.geoderma.2018.04.015 |
| Indexed By | SCI |
| WOS Keyword | MICROBIAL BIOMASS PHOSPHORUS ; TEMPERATE RAIN-FOREST ; GLACIER FORELAND ; USE EFFICIENCIES ; PARENT MATERIAL ; FRACTIONATION ; PEDOGENESIS ; ECOSYSTEM ; MOUNTAIN ; CHRONOSEQUENCE |
| Language | 英语 |
| Quartile | 1区 |
| Funding Project | National Natural Science Foundation of China[41630751] ; National Natural Science Foundation of China[41401253] |
| TOP | 是 |
| WOS Research Area | Agriculture |
| WOS Subject | Soil Science |
| WOS ID | WOS:000433648800013 |
| Funding Organization | National Natural Science Foundation of China |
| Publisher | ELSEVIER SCIENCE BV |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imde.ac.cn/handle/131551/21446 |
| Collection | 山地表生过程与生态调控重点实验室 |
| Corresponding Author | Wu, Yanhong |
| Affiliation | 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 |
| First Author Affilication | 中国科学院水利部成都山地灾害与环境研究所 |
| Corresponding Author Affilication | 中国科学院水利部成都山地灾害与环境研究所 |
| Recommended Citation 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Hexiaoli 2018 Geoder（2913KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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