Effects of altered precipitation regimes on plant productivity in the arid region of northern China
文献类型：期刊论文
| 作者 | Xu, Hao-jie1,2; Wang, Xin-ping1 |
| 刊名 | ECOLOGICAL INFORMATICS
 |
| 出版日期 | 2016 |
| 卷号 | 31页码:137-146 |
| 关键词 | Net primary productivity Climate change Precipitation quantity Seasonal distribution of precipitation Arid region Northern China |
| ISSN号 | 1574-9541 |
| DOI | 10.1016/j.ecoinf.2015.12.003 |
| 通讯作者 | Wang, Xin-ping(xpwang@lzb.ac.cn) |
| 英文摘要 | Climate change scenarios have predicted significant alterations in precipitation patterns over most of the mid latitude land areas by the end of this century, but the degree to which altered precipitation regimes influence terrestrial ecosystem function in arid regions is uncertain. Precipitation is a primary climatic factor that regulates ecosystem function in arid regions. Based on remote sensing and meteorological data from 2000 to 2013, we analysed the spatiotemporal variations in annual net primary productivity (NPP) for different land cover types in the arid region of northern China and quantified the effects of growing season precipitation (GSP) and seasonal distribution of precipitation (SDP) on NPP variability by using the ecological process Carnegie-Ames-Stanford Approach (CASA) model. Our results suggested that significant NPP increases were found in most of the vegetated areas, especially in grasslands and shrublands. Responses of NPP to precipitation variability were related to land cover types. Grassland and shrubland were most responsive to precipitation variability followed by croplands and forests. Increased precipitation increased NPP, and NPP responded more strongly to higher precipitation than lower precipitation. We also found that increased precipitation concentration decreased NPP. GSP and SDP accounted for approximately 67% and 21%, respectively, of the variability in NPP. We concluded that growing season precipitation and its seasonal distribution were dominant factors controlling inter-annual variability in NPP in the arid region of northern China. Other factors, such as plant functional trait, antecedent soil moisture and human activities, might mediate NPP responses to precipitation variability through interaction with water availability. Our studies have implications for assessing and predicting vegetation responses to future climate change. (C) 2015 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | NET PRIMARY PRODUCTIVITY ; CHIHUAHUAN DESERT GRASSLAND ; TERRESTRIAL ECOSYSTEMS ; CLIMATE EXTREMES ; INTERANNUAL VARIABILITY ; TEMPERATE GRASSLANDS ; SEMIARID ECOSYSTEMS ; DATA SET ; VEGETATION ; RESPONSES |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000369471400014 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557108 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Wang, Xin-ping |
| 作者单位 | 1.Chinese Acad Sci, Shapotou Desert Res & Expt Stn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Hao-jie,Wang, Xin-ping. Effects of altered precipitation regimes on plant productivity in the arid region of northern China[J]. ECOLOGICAL INFORMATICS,2016,31:137-146. |
| APA | Xu, Hao-jie,&Wang, Xin-ping.(2016).Effects of altered precipitation regimes on plant productivity in the arid region of northern China.ECOLOGICAL INFORMATICS,31,137-146. |
| MLA | Xu, Hao-jie,et al."Effects of altered precipitation regimes on plant productivity in the arid region of northern China".ECOLOGICAL INFORMATICS 31(2016):137-146. |
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来源：寒区旱区环境与工程研究所
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