Human activity impacts on the stem radial growth of Populus euphratica riparian forests in China's Ejina Oasis, using tree-ring analysis
文献类型：期刊论文
| 作者 | Peng, Xiaomei1,2; Xiao, Shengchun1; Cheng, Guodong1; Xiao, Honglang1; Tian, Quanyan1,2; Zhang, Qibing3 |
| 刊名 | TREES-STRUCTURE AND FUNCTION
 |
| 出版日期 | 2017-04-01 |
| 卷号 | 31期号:2页码:379-392 |
| 关键词 | Riparian forest Radial growth heterogeneity Heihe River Water allocation projects |
| ISSN号 | 0931-1890 |
| DOI | 10.1007/s00468-015-1287-z |
| 通讯作者 | Xiao, Shengchun(xiaosc@lzb.ac.cn) |
| 英文摘要 | Over the last several decades, riparian forests in Northwest China have been extremely vulnerable to the increasing pressures from human activity and climate change. However, it is unclear how forests correlate with these influences over time and on a wide scale. In the present study, we developed 28 tree-ring chronologies of Populus euphratica in the Ejina Oasis, in the lower reaches of Northwestern China's Heihe River, to evaluate the oasisscale riparian forest growth variation and its correlation with the runoff regulation. We identified three hydrologic periods using regime-shift analysis: a natural runoff period from 1954 to 1989, when the oasis was sustained by natural river flows; a degradation period from 1990 to 2002, when excessive upstream withdrawals of runoff decreased flows to the oasis; and a recovery period, from 2003 to 2010, when water allocation projects restored flows. In general, stem radial growth of poplar trees in the oasis showed decreasing and increasing trends in the degradation period and recovery period, respectively, with high spatial heterogeneity in each period. Our analysis of the relationship between the chronologies and corresponding hydrologic and climatic data revealed that the runoff-recharged hyporheic groundwater depth was the major factor that limited tree stem radial growth. Thus, it is important to allocate water between the middle and lower reaches, and inside the lower reaches, to mitigate or prevent the adverse effects of low runoff. Our study also demonstrates that researchers must carefully consider the high spatial heterogeneity during dendrochronological research in an arid riparian forest. |
| 收录类别 | SCI |
| WOS关键词 | HEIHE RIVER-BASIN ; QINGHAI-TIBETAN PLATEAU ; NORTHWEST CHINA ; LOWER REACHES ; GROUNDWATER LEVEL ; WATER-USE ; TARIM RIVER ; VEGETATION ; TEMPERATURE ; ECOSYSTEM |
| WOS研究方向 | Forestry |
| WOS类目 | Forestry |
| 语种 | 英语 |
| WOS记录号 | WOS:000398106900002 |
| 出版者 | SPRINGER HEIDELBERG |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557577 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Xiao, Shengchun |
| 作者单位 | 1.Chinese Acad Sci, Cold & Arid Regions Environm & Engn Res Inst, Key Lab Ecohydrol Inland River Basin, Donggang West Rd 320, Lanzhou 730000, Gansu, Peoples R China 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 | Peng, Xiaomei,Xiao, Shengchun,Cheng, Guodong,et al. Human activity impacts on the stem radial growth of Populus euphratica riparian forests in China's Ejina Oasis, using tree-ring analysis[J]. TREES-STRUCTURE AND FUNCTION,2017,31(2):379-392. |
| APA | Peng, Xiaomei,Xiao, Shengchun,Cheng, Guodong,Xiao, Honglang,Tian, Quanyan,&Zhang, Qibing.(2017).Human activity impacts on the stem radial growth of Populus euphratica riparian forests in China's Ejina Oasis, using tree-ring analysis.TREES-STRUCTURE AND FUNCTION,31(2),379-392. |
| MLA | Peng, Xiaomei,et al."Human activity impacts on the stem radial growth of Populus euphratica riparian forests in China's Ejina Oasis, using tree-ring analysis".TREES-STRUCTURE AND FUNCTION 31.2(2017):379-392. |
入库方式： iSwitch采集
来源：寒区旱区环境与工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。