Persistence of soil microbial function at the rock-soil interface in degraded karst topsoils
文献类型：期刊论文
| 作者 | Wang, Ying2; Dungait, Jennifer A. J.3; Xing, Kaixiong4; Green, Sophie M.3; Hartley, Iain3; Tu, Chenglong5; Quine, Timothy A.3; Tian, Jing2 ; Kuzyakov, Yakov1,6,7
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| 刊名 | LAND DEGRADATION & DEVELOPMENT
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| 出版日期 | 2019-12-01 |
| 页码 | 15 |
| ISSN号 | 1085-3278 |
| 关键词 | carbon and nutrient cycling human perturbation karst ecosystem microbial function rock weathering rock-soil interface |
| DOI | 10.1002/ldr.3445 |
| 通讯作者 | Tian, Jing(tianj@igsnrr.ac.cn) |
| 英文摘要 | Extensive and progressive rock emergence in karst ecosystems may cause localized variations in soil biogeochemical and microbial properties, and thus produce nutrient cycling 'hot spots' that could alter functional responses to perturbation. Here, we investigated the differences between microbial compositions and functions in topsoils at the rock-soil interface (RSI) compared with adjacent bulk soil along a gradient of increasing human perturbation in the Chinese Karst Critical Zone Observatory. Microbial abundance decreased with increasing perturbation and was higher at the RSI compared to bulk soil. Compared with the bulk soil, C-cycling and N cycling enzyme activities at the RSI were 72-427% higher, respectively, and those related to N cycling were 72-98% higher, and were greatest in primary forest and abandoned land. Mineral contents explained the large variances in enzyme activities suggesting that mineral availability modified microbial functions for nutrients acquisition in nutrient-poor karst system. The significantly larger nutrient contents of RSI soil in the primary forest suggest that weathering of the karst rocks in unperturbed environments is the primary source of nutrients, which is driven by microbial enzyme production. The enzyme activities related to C and N cycling were highest in abandoned land, which suggests a rapid switch in microbial function caused by nutrient limitation when cultivation ceased. In conclusion, soil microbial abundance and function next to karst rocks is higher than bulk soils and persists after recovery. This suggests that the potential for long-term recovery of very degraded karst landscapes is possible after abandonment because microbial functions for C and nutrient cycling persist in RSI 'hot spots'. |
| WOS关键词 | PHOSPHOLIPID FATTY-ACID ; EXTRACELLULAR ENZYME-ACTIVITY ; COMMUNITY COMPOSITION ; ORGANIC-MATTER ; LAND-USE ; ECOENZYMATIC STOICHIOMETRY ; TRACE CONCENTRATIONS ; FOREST ; NITROGEN ; AVAILABILITY |
| 资助项目 | National Environmental Research Council of the UK ; Newton Foundation[N007603:1] ; State Key and General Programs of National Natural Science Foundation of China[31770560] ; State Key and General Programs of National Natural Science Foundation of China[41571130041] |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
| 语种 | 英语 |
| 出版者 | WILEY |
| WOS记录号 | WOS:000499648200001 |
| 资助机构 | National Environmental Research Council of the UK ; Newton Foundation ; State Key and General Programs of National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/130355]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Tian, Jing |
| 作者单位 | 1.Kazan Fed Univ, Inst Environm Sci, Kazan 420049, Russia 2.China Agr Univ, Coll Resources & Environm Sci, Natl Acad Agr Green Dev, Key Lab Plant Soil Interact,Minist Educ, Beijing 100193, Peoples R China 3.Univ Exeter, Geog, Coll Life & Environm Sci, Rennes Dr, Exeter EX4 4RJ, Devon, England 4.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 5.Guizhou Med Univ, Key Lab Environm Pollut Monitoring & Dis Control, Minist Educ, Guiyang 550025, Guizhou, Peoples R China 6.Univ Gottingen, Dept Soil Sci Temperate Ecosyst, Dept Agr Soil Sci, D-37077 Gottingen, Germany 7.RUDN Univ, Agrotechnol Inst, Moscow 117198, Russia |
| 推荐引用方式 GB/T 7714 | Wang, Ying,Dungait, Jennifer A. J.,Xing, Kaixiong,et al. Persistence of soil microbial function at the rock-soil interface in degraded karst topsoils[J]. LAND DEGRADATION & DEVELOPMENT,2019:15. |
| APA | Wang, Ying.,Dungait, Jennifer A. J..,Xing, Kaixiong.,Green, Sophie M..,Hartley, Iain.,...&Kuzyakov, Yakov.(2019).Persistence of soil microbial function at the rock-soil interface in degraded karst topsoils.LAND DEGRADATION & DEVELOPMENT,15. |
| MLA | Wang, Ying,et al."Persistence of soil microbial function at the rock-soil interface in degraded karst topsoils".LAND DEGRADATION & DEVELOPMENT (2019):15. |
入库方式： OAI收割
来源：地理科学与资源研究所
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