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Patterns and driving factors of water and nitrogen use efficiency in Robinia pseudoacacia L. on the Loess Plateau in China

文献类型：期刊论文

作者Su, Bingqian1,2; Shangguan, Zhouping1,3
刊名CATENA
出版日期2020-12-01
卷号195页码:10
关键词Water use efficiency Nitrogen use efficiency delta C-13 Robinia pseudoacacia Loess Plateau
ISSN号0341-8162
DOI10.1016/j.catena.2020.104790
通讯作者Shangguan, Zhouping(shangguan@ms.iswc.ac.cn)
英文摘要Water use efficiency (WUE) and nitrogen use efficiency (NUE) demonstrates the competitive strategies of plants with limited resources, which is important in mediating survival productivity and fitness of plants. Previous studies have found that there is a trade-off relationship between WUE and NUE and that they are affected by many factors, such as climate variables, geographical variables and soil properties. However, the patterns of WUE and NUE in Robinia pseudoacacia on the Loess Plateau are unclear and their driving factors need to be investigated to advance our knowledge of these key parameters to understand the coupling of carbon, nitrogen and water cycle. In this study, we calculated the WUE and NUE in Robinia pseudoacacia along a precipitation transect on the Loess Plateau and examined the effects of influencing factors on WUE and NUE. Our results showed that WUE varied from 64.03 to 103.08 mu mol mmol(-1), and NUE varied from 11.26 to 18.19 gC g(-1)N. Latitude played a substantial role in WUE, and soil nitrogen (ammonium nitrogen and total nitrogen) played a substantial role in NUE. In addition, NUE in Robinia pseudoacacia was lower than the average value of whole plants on the Loess Plateau, and the growth of Robinia pseudoacacia was mainly restricted by phosphorus. By dividing into three zones, zone 3 had higher WUE in where with higher latitude and lower precipitation, and NUE was not significant among the three zones. These results highlight the importance of location variables and soil chemical properties to WUE and NUE and provide useful information for understanding the coupling of carbon, nitrogen and water cycle of plants in ecosystems.
WOS关键词CARBON-ISOTOPE DISCRIMINATION ; SOIL N AVAILABILITY ; PHOSPHORUS RATIOS ; SPATIAL-PATTERNS ; LEAF DELTA-C-13 ; NATURAL FOREST ; VEGETATION ; PLANTS ; LIMITATION ; GROWTH
资助项目Science and Technology Innovation Program of Shaanxi Academy of Forestry[SXLK2020-0101] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23070201] ; National Key Research and Development Program of China[2016YFC0501605] ; National Natural Science Foundation of China[41771549]
WOS研究方向Geology ; Agriculture ; Water Resources
语种英语
WOS记录号WOS:000580366300039
出版者ELSEVIER
资助机构Science and Technology Innovation Program of Shaanxi Academy of Forestry ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Natural Science Foundation of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/156529]  
专题中国科学院地理科学与资源研究所
通讯作者Shangguan, Zhouping
作者单位1.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Su, Bingqian,Shangguan, Zhouping. Patterns and driving factors of water and nitrogen use efficiency in Robinia pseudoacacia L. on the Loess Plateau in China[J]. CATENA,2020,195:10.
APA Su, Bingqian,&Shangguan, Zhouping.(2020).Patterns and driving factors of water and nitrogen use efficiency in Robinia pseudoacacia L. on the Loess Plateau in China.CATENA,195,10.
MLA Su, Bingqian,et al."Patterns and driving factors of water and nitrogen use efficiency in Robinia pseudoacacia L. on the Loess Plateau in China".CATENA 195(2020):10.

入库方式： OAI收割

来源：地理科学与资源研究所

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