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  4. 山地表生过程与生态调控重点实验室
Effects of plantation age and precipitation gradient on soil carbon and nitrogen changes following afforestation in the Chinese Loess Plateau

文献类型：期刊论文

作者Han, Xiaoyang1,2; Gao, Guangyao2,3; Li, Zongshan2,3; Chang, Ruiying4; Jiao, Lei5; Fu, Bojie2,3
刊名LAND DEGRADATION & DEVELOPMENT
出版日期2019-08-27
页码13
ISSN号1085-3278
关键词afforestation Loess Plateau plantation age precipitation gradient soil C and N stocks
DOI10.1002/ldr.3422
通讯作者Gao, Guangyao(gygao@rcees.ac.cn)
英文摘要Afforestation of degraded land significantly influences soil organic carbon (SOC) and total nitrogen (STN) sequestration. The interaction effects of plantation age and climate gradient on SOC and STN changes following afforestation are not well understood. In this study, five sites were selected along a precipitation gradient (410-600 mm yr(-1)) in the Loess Plateau. The SOC and STN stocks at a depth of 0-200 cm were measured in cropland and black locust (Robinia pseudoacacia L.) forests with different plantation ages, that is, young forest (<15 years), middle-aged forest (15-25 years), and old forest (>25 years). The SOC and STN stocks in the 0- to 200-cm profiles of young forest, middle-aged forest, and cropland increased significantly with mean annual precipitation (p < .05), whereas the increasing trend of the SOC stocks of old forest was not significant, indicating an age-dependent change in the SOC and STN stocks across the precipitation gradient. The SOC stock change ( increment SOC) following afforestation increased with mean annual precipitation in young forest, but it had a decreasing trend in middle-aged and old forests. The STN stock changes ( increment STN) in the three forests were negative at most sites, and they all decreased along the precipitation gradient. There were significant positive correlations between increment SOC and increment STN (p < .01), and 1-g STN stock accumulation was accompanied by 8.40-, 6.10-, and 10.48-g SOC accumulation for young forest, middle-aged forest, and old forest, respectively. The different patterns of SOC and STN stock changes should be incorporated into soil C and N modelling and estimation.
WOS关键词LAND-USE CONVERSION ; ORGANIC-CARBON ; INORGANIC CARBON ; ECOSYSTEM CARBON ; DEEP PROFILES ; STOCKS ; STORAGE ; CLIMATE ; ACCUMULATION ; LIMITATION
资助项目National Key Research and Development Program of China[2016YFC0501602] ; National Natural Science Foundation of China[41822103] ; Innovation Project of State Key Laboratory of Urban and Regional Ecology of China[SKLURE2017-1-2] ; Youth Innovation Promotion Association CAS[2016040]
WOS研究方向Environmental Sciences & Ecology ; Agriculture
语种英语
出版者WILEY
WOS记录号WOS:000483891300001
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China ; Innovation Project of State Key Laboratory of Urban and Regional Ecology of China ; Youth Innovation Promotion Association CAS
源URL[http://ir.imde.ac.cn/handle/131551/26961]  
专题成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
通讯作者Gao, Guangyao
作者单位1.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Sichuan, Peoples R China
5.Shaanxi Normal Univ, Sch Geog & Tourism, Xian 710119, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Han, Xiaoyang,Gao, Guangyao,Li, Zongshan,et al. Effects of plantation age and precipitation gradient on soil carbon and nitrogen changes following afforestation in the Chinese Loess Plateau[J]. LAND DEGRADATION & DEVELOPMENT,2019:13.
APA Han, Xiaoyang,Gao, Guangyao,Li, Zongshan,Chang, Ruiying,Jiao, Lei,&Fu, Bojie.(2019).Effects of plantation age and precipitation gradient on soil carbon and nitrogen changes following afforestation in the Chinese Loess Plateau.LAND DEGRADATION & DEVELOPMENT,13.
MLA Han, Xiaoyang,et al."Effects of plantation age and precipitation gradient on soil carbon and nitrogen changes following afforestation in the Chinese Loess Plateau".LAND DEGRADATION & DEVELOPMENT (2019):13.

入库方式： OAI收割

来源：成都山地灾害与环境研究所

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