Changes in soil properties rather than functional gene abundance control carbon and nitrogen mineralization rates during long-term natural revegetation
文献类型：期刊论文
| 作者 | Zhang, Kerong2,3; Li, Xinshuai1,2,3; Cheng, Xiaoli2; Zhang, Zhenhua4; Zhang, Quanfa2,3 |
| 刊名 | PLANT AND SOIL
 |
| 出版日期 | 2019-10-01 |
| 卷号 | 443期号:1-2页码:293-306 |
| 关键词 | GeoChip Abandoned croplands Land-use change Vegetation succession Carbon cycling Soil microbes |
| ISSN号 | 0032-079X |
| DOI | 10.1007/s11104-019-04212-9 |
| 英文摘要 | Background and aims Agricultural abandonment has been taken as one of the most widely used strategies for ecological restoration. Abandoned croplands expanded worldwide since the middle of the twentieth century and will increase considerably in the future. Whether agricultural abandonment alters the abundances of soil carbon (C) and nitrogen (N) mineralization genes, and whether these functional genes are linked to alterations in C and N mineralization rates remain unknown. Methods We took advantage of a well-established chronosequence of nature restoration sites on abandoned croplands which represent a century of vegetation succession in China's Qinling Mountains, to determine soil C and N mineralization rates, and their relationships with vegetation succession, edaphic characteristics, soil microbial communities, and functional genes based on GeoChip 5.0. Results We found that soil C and N mineralization rates, microbial biomass and composition, and the number and abundances of functional genes were significantly affected by vegetation succession following agricultural abandonment. Soil C and N mineralization rates increased by sixfold and threefold, respectively, along the cropland to forest successional gradient. The NO3-N, NH4-N and soil available phosphorus (P) concentrations were important factors associated with the C and N mineralization genes. The shifts in edaphic environments (i.e., soil moisture, cation exchange capacity, and C/P ratio), vegetation-derived substrates (i.e., soil organic C and N), and soil microbial composition (i.e., Fungi/Bacteria ratio, amounts of Gram-negative bacteria, Actinomycetes, and arbuscular mycorrhizal fungi), rather than the abundances of functional genes involved in mineralization processes, controlled soil C and N mineralization rates along the long-term vegetation successional gradient. Conclusions Abandoning cropland for natural succession could facilitate the recuperation of soil C and N processes and alter soil microbial composition and functional genes. The abundances of microbial functional genes are less important than previously expected in regulating soil C and N mineralization rates. |
| 资助项目 | National Natural Science Foundation of China[31770562] ; National Natural Science Foundation of China[31470499] ; National Natural Science Foundation of China[3192200779] ; Youth Innovation Promotion Association CAS[2018374] ; Strategic Priority Research Programs of the Chinese Academy of Sciences[XDA05060500] ; Strategic Priority Research Programs of the Chinese Academy of Sciences[XDB15010200] |
| WOS研究方向 | Agriculture ; Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000493661800019 |
| 出版者 | SPRINGER |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/14852]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Zhang, Kerong |
| 作者单位 | 1.Univ Chinese Acad Sci, Chinese Acad Sci, Beijing 100101, Peoples R China 2.Chinese Acad Sci, CAS Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Hubei, Peoples R China 3.Chinese Acad Sci, Ctr Plant Ecol, Core Bot Garden, Wuhan 430074, Hubei, Peoples R China 4.Foping Natl Nat Reserve, Foping 723400, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Kerong,Li, Xinshuai,Cheng, Xiaoli,et al. Changes in soil properties rather than functional gene abundance control carbon and nitrogen mineralization rates during long-term natural revegetation[J]. PLANT AND SOIL,2019,443(1-2):293-306. |
| APA | Zhang, Kerong,Li, Xinshuai,Cheng, Xiaoli,Zhang, Zhenhua,&Zhang, Quanfa.(2019).Changes in soil properties rather than functional gene abundance control carbon and nitrogen mineralization rates during long-term natural revegetation.PLANT AND SOIL,443(1-2),293-306. |
| MLA | Zhang, Kerong,et al."Changes in soil properties rather than functional gene abundance control carbon and nitrogen mineralization rates during long-term natural revegetation".PLANT AND SOIL 443.1-2(2019):293-306. |
入库方式： OAI收割
来源：武汉植物园
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