Arid
DOI10.5194/bg-12-4245-2015
Energy partitioning and surface resistance of a poplar plantation in northern China
Kang, M.1; Zhang, Z.1; Noormets, A.2; Fang, X.1; Zha, T.1; Zhou, J.3; Sun, G.4; McNulty, S. G.4; Chen, J.5,6
通讯作者Zhang, Z.
来源期刊BIOGEOSCIENCES
ISSN1726-4170
EISSN1726-4189
出版年2015
卷号12期号:14页码:4245-4259
英文摘要

Poplar (Populus sp.) plantations have been, on the one hand, broadly used in northern China for urban greening, combating desertification, as well as for paper and wood production. On the other hand, such plantations have been questioned occasionally for their possible negative impacts on water availability due to the higher water-use nature of poplar trees compared with other tree species in water-limited dryland regions. To further understand the acclimation of poplar species to semiarid environments and to evaluate the potential impacts of these plantations on the broader context of the region’s water supply, we examine the variability of bulk resistance parameters and energy partitioning in a poplar (Populus euramericana cv. "74/76") plantation located in northern China over a 4-year period, encompassing both dry and wet conditions. The partitioning of available energy to latent heat flux (LE) decreased from 0.62 to 0.53 under mediated meteorological drought by irrigation applications. A concomitant increase in sensible heat flux (H/resulted in the increase of a Bowen ratio from 0.83 to 1.57. Partial correlation analysis indicated that surface resistance (R-s/normalized by leaf area index (LAI; R-s: LAI) increased by 50% under drought conditions and was the dominant factor controlling the Bowen ratio. Furthermore, R-s was the main factor controlling LE during the growing season, even in wet years, as indicated by the decoupling coefficient (Omega = 0.45 and 0.39 in wet and dry years, respectively). R-s was also a major regulator of the LE/LEeq ratio, which decreased from 0.81 in wet years to 0.68 in dry years. All physiological and bioclimatological metrics indicated that the water demands of the poplar plantation were greater than the amount available through precipitation, highlighting the poor match of a water-intensive species like poplar for this water-limited region.


类型Article
语种英语
国家Peoples R China ; USA
收录类别SCI-E
WOS记录号WOS:000358800900005
WOS关键词WATER-VAPOR FLUXES ; CANOPY CONDUCTANCE ; BALANCE CLOSURE ; INTERANNUAL VARIABILITY ; CARBON SEQUESTRATION ; EDDY COVARIANCE ; SPRUCE FOREST ; BOWEN-RATIO ; HEAT FLUXES ; RAIN-FOREST
WOS类目Ecology ; Geosciences, Multidisciplinary
WOS研究方向Environmental Sciences & Ecology ; Geology
来源机构北京林业大学 ; E18
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/186208
作者单位1.Beijing Forestry Univ, Coll Soil & Water Conservat, Key Lab Soil & Water Conservat & Desertificat Com, Minist Educ, Beijing 100083, Peoples R China;
2.N Carolina State Univ, Dept Forestry & Environm Resources, Raleigh, NC 27695 USA;
3.Beijing Municipal Stn Agroenvironm Monitoring, Beijing 100029, Peoples R China;
4.US Forest Serv, Eastern Forest Environm Threat Assessment Ctr, Southern Res Stn, USDA, Raleigh, NC USA;
5.Michigan State Univ, CGCEO, Landscape Ecol & Ecosyst Sci LEES Lab, E Lansing, MI 48823 USA;
6.Michigan State Univ, Dept Geog, E Lansing, MI 48823 USA
推荐引用方式
GB/T 7714
Kang, M.,Zhang, Z.,Noormets, A.,et al. Energy partitioning and surface resistance of a poplar plantation in northern China[J]. 北京林业大学, E18,2015,12(14):4245-4259.
APA Kang, M..,Zhang, Z..,Noormets, A..,Fang, X..,Zha, T..,...&Chen, J..(2015).Energy partitioning and surface resistance of a poplar plantation in northern China.BIOGEOSCIENCES,12(14),4245-4259.
MLA Kang, M.,et al."Energy partitioning and surface resistance of a poplar plantation in northern China".BIOGEOSCIENCES 12.14(2015):4245-4259.
条目包含的文件
文件名称/大小 资源类型 版本类型 开放类型 使用许可
Energy partitioning (1199KB)期刊论文出版稿开放获取CC BY-NC-SA浏览
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Kang, M.]的文章
[Zhang, Z.]的文章
[Noormets, A.]的文章
百度学术
百度学术中相似的文章
[Kang, M.]的文章
[Zhang, Z.]的文章
[Noormets, A.]的文章
必应学术
必应学术中相似的文章
[Kang, M.]的文章
[Zhang, Z.]的文章
[Noormets, A.]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Energy partitioning and surface resistance of a poplar plantation in northern China.pdf
格式: Adobe PDF
此文件暂不支持浏览

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。