The impacts of precipitation increase and nitrogen addition on soil respiration in a semiarid temperate steppe
文献类型：期刊论文
| 作者 | Zhang, Xiaolin; Tan, Yulian; Zhang, Bingwei; Li, Ang; Daryanto, Stefani3; Wang, Lixin3; Huang, Jianhui1
|
| 刊名 | ECOSPHERE
 |
| 出版日期 | 2017 |
| 卷号 | 8期号:1 |
| 关键词 | Inner Mongolia nitrogen addition snow addition soil respiration temperate typical steppe water addition |
| ISSN号 | 2150-8925 |
| DOI | 10.12705/665.34 |
| 文献子类 | Article |
| 英文摘要 | Soil respiration, R-s, is strongly controlled by water availability in semiarid grasslands. However, how R-s is affected by precipitation change (either as rainfall or as snowfall) especially under increasing nitrogen (N) deposition has been uncertain. A manipulative experiment to investigate the responses of growing season R-s to changes in spring snowfall or summer rainfall with or without N addition was conducted in the semiarid temperate steppe of China during three hydrologically contrasting years. Our results showed that both spring snow addition and summer water addition significantly increased R-s by increasing soil moisture. The effect of spring snow addition only occurred in years with both relatively lower natural snowfall and later snowmelt time. Summer water addition showed a much stronger effect on R-s by increasing plant root growth and microbial activities, but the magnitude also largely depended on the possible legacy effect of previous year precipitation. Our results indicated that precipitation increase in the form of snowfall had weaker effects than that in the form of rainfall as the former only accounted for less than 30% of total precipitation. Compared with other ecosystem processes, R-s was less responsible for increase in N deposition as it did not increase root productivity and microbial activities in the soils. Our results provided field data constraints for modeling the ecosystem carbon balance under the future global change scenarios in semiarid grasslands. |
| 学科主题 | Plant Sciences ; Evolutionary Biology |
| 出版地 | HOBOKEN |
| WOS关键词 | CO2 EFFLUX ; DIFFERENTIAL RESPONSES ; MICROBIAL RESPIRATION ; HETEROTROPHIC RESPIRATION ; INNER-MONGOLIA ; CLIMATE-CHANGE ; CARBON ; WATER ; SNOW ; GRASSLAND |
| 语种 | 英语 |
| WOS记录号 | WOS:000414549400033 |
| 出版者 | WILEY |
| 资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31670483, 31430016] ; Strategic Priority Research Program on Soil and Microbes of the Chinese Academy of Sciences [XDB15010401] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/22341]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Indiana Univ Purdue Univ, Dept Earth Sci, Indianapolis, IN 46202 USA 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Xiaolin,Tan, Yulian,Zhang, Bingwei,et al. The impacts of precipitation increase and nitrogen addition on soil respiration in a semiarid temperate steppe[J]. ECOSPHERE,2017,8(1). |
| APA | Zhang, Xiaolin.,Tan, Yulian.,Zhang, Bingwei.,Li, Ang.,Daryanto, Stefani.,...&Huang, Jianhui.(2017).The impacts of precipitation increase and nitrogen addition on soil respiration in a semiarid temperate steppe.ECOSPHERE,8(1). |
| MLA | Zhang, Xiaolin,et al."The impacts of precipitation increase and nitrogen addition on soil respiration in a semiarid temperate steppe".ECOSPHERE 8.1(2017). |
入库方式： OAI收割
来源：植物研究所
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