Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.pce.2016.06.003 |
Long time-series spatiotemporal variations of NPP and water use efficiency in the lower Heihe River Basin with serious water scarcity | |
Yan, Haiming1; Zhan, Jinyan1; Yang, Huicai2; Zhang, Fan1; Wang, Guofeng3; He, Wenjie4 | |
通讯作者 | Zhan, Jinyan |
来源期刊 | PHYSICS AND CHEMISTRY OF THE EARTH |
ISSN | 1474-7065 |
EISSN | 1873-5193 |
出版年 | 2016 |
卷号 | 96页码:41-49 |
英文摘要 | It is of great significance to analyze the long time-series spatiotemporal dynamics of water use efficiency (WUE) to formulating appropriate management measures in response to the growing water scarcity in arid and semi-arid regions. This study analyzed the long time-series variations of WUE in the Lower Heihe River Basin, a typical arid and semi-arid region in China. The net primary productivity (NPP) was first estimated with the C-fix model, then WUE during 2001-2010 was calculated with the NPP and evapotranspiration (ET) data, and the accumulative WUE was further calculated. The results showed that the annual NPP and WUE in the study area ranged from zero to 448.70 gC/(m(2) a) and from zero to 2.20 gC kg(-1) H2O, respectively, both of which showed an overall increasing trend during 2001-2010. Besides, the spatial pattern of WUE kept overall unchanged during 2001-2010, but with remarkable change in some part of the study area. In addition, the accumulative WUE of the whole study area showed a first sharply decreasing and then gradually increasing trend, but there was still some scope to improve the WUE, and it is necessary to carry out some more specific policies to further improve the water allocation and WUE within the Lower Heihe River Basin. Although with some uncertainties, these results still can provide valuable reference information for improving the water resource management and ecological conservation to guarantee provision of essential ecosystem services in arid and semi-arid regions. (C) 2016 Elsevier Ltd. All rights reserved. |
英文关键词 | Water use efficiency NPP Heihe River Basin Ecosystem services C-fix model |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000390518300006 |
WOS关键词 | NET PRIMARY PRODUCTIVITY ; LAND-USE CHANGE ; ECOSYSTEM SERVICES ; SEMIARID ENVIRONMENT ; DRIVING FORCES ; CLIMATE-CHANGE ; MANAGEMENT ; VEGETATION ; RESOURCES ; CHINA |
WOS类目 | Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences ; Water Resources |
WOS研究方向 | Geology ; Meteorology & Atmospheric Sciences ; Water Resources |
来源机构 | 北京师范大学 ; 北京林业大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/195462 |
作者单位 | 1.Beijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing 100875, Peoples R China; 2.Beijing Normal Univ, Coll Water Sci, Beijing 100875, Peoples R China; 3.Beijing Forestry Univ, Sch Econ & Management, Beijing 100083, Peoples R China; 4.Hebei Prov Environm Emergency & Heavy Pollut Weat, Shijiazhuang 050030, Hebei Province, Peoples R China |
推荐引用方式 GB/T 7714 | Yan, Haiming,Zhan, Jinyan,Yang, Huicai,et al. Long time-series spatiotemporal variations of NPP and water use efficiency in the lower Heihe River Basin with serious water scarcity[J]. 北京师范大学, 北京林业大学,2016,96:41-49. |
APA | Yan, Haiming,Zhan, Jinyan,Yang, Huicai,Zhang, Fan,Wang, Guofeng,&He, Wenjie.(2016).Long time-series spatiotemporal variations of NPP and water use efficiency in the lower Heihe River Basin with serious water scarcity.PHYSICS AND CHEMISTRY OF THE EARTH,96,41-49. |
MLA | Yan, Haiming,et al."Long time-series spatiotemporal variations of NPP and water use efficiency in the lower Heihe River Basin with serious water scarcity".PHYSICS AND CHEMISTRY OF THE EARTH 96(2016):41-49. |
条目包含的文件 | 下载所有文件 | |||||
文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
Long time-series spa(1553KB) | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 |
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。