Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1890/1051-0761(2000)010[0470:BCOVCA]2.0.CO;2 |
Belowground consequences of vegetation change and their treatment in models | |
Jackson, RB; Schenk, HJ; Jobbagy, EG; Canadell, J; Colello, GD; Dickinson, RE; Field, CB; Friedlingstein, P; Heimann, M; Hibbard, K; Kicklighter, DW; Kleidon, A; Neilson, RP; Parton, WJ; Sala, OE; Sykes, MT | |
通讯作者 | Jackson, RB |
来源期刊 | ECOLOGICAL APPLICATIONS
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ISSN | 1051-0761 |
出版年 | 2000 |
卷号 | 10期号:2页码:470-483 |
英文摘要 | The extent and consequences of global land-cover and land-use change are increasingly apparent. One consequence not so apparent is the altered structure of plants belowground. This paper examines such belowground changes, emphasizing the interaction of altered root distributions with other factors and their treatment in models. Shifts of woody and herbaceous vegetation with deforestation, afforestation, and woody plant encroachment typically alter the depth and distribution of plant rests, influencing soil nutrients, the water balance, and net primary productivity (NPP). For example, our analysis of global soil data sets shows that the major plant nutrients C, N, P, and K are more shallowly distributed than are Ca, Mg, and Na, but patterns for each element vary with the dominant vegetation type. After controlling for climate, soil C and N are distributed more deeply in arid shrublands than in arid grasslands, and subhumid forests have shallower nutrient distributions than do subhumid grasslands. Consequently, changes in vegetation may influence the distribution of soil carbon and nutrients over time (perhaps decades to centuries). Shifts in the water balance are typically much more rapid. Catchment studies indicate that the water yield decreases 25-40 mm for each 10% increase in tree cover, and increases in transpiration of water taken up by deep roots may account for as much as 50% of observed responses. Because models are increasingly important for predicting the consequences of vegetation change, we discuss the treatment of belowground processes and how different treatments affect model outputs. Whether models are parameterized by biome or plant life form (or neither), use single or multiple soil layers, or include N and water limitation will all affect predicted outcomes. Acknowledging and understanding such differences should help constrain predictions of vegetation change. |
英文关键词 | belowground processes and global change biogeochemistry ecosystem models global change plant life forms roots shrub encroachment soil carbon and nutrients water balance |
类型 | Review |
语种 | 英语 |
国家 | USA ; Australia ; Germany ; Argentina ; Sweden |
收录类别 | SCI-E |
WOS记录号 | WOS:000086008300013 |
WOS关键词 | MURRAY-DARLING BASIN ; TERRESTRIAL BIOSPHERE MODEL ; SOIL-WATER DYNAMICS ; ECOHYDROLOGICAL CHANGES ; ROOT DISTRIBUTIONS ; EXPERIMENTAL CATCHMENTS ; ECOSYSTEM PRODUCTION ; EUCALYPTUS-GRANDIS ; SATELLITE DATA ; GLOBAL WATER |
WOS类目 | Ecology ; Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
来源机构 | University of Arizona ; Commonwealth Scientific and Industrial Research Organisation ; Colorado State University ; E18 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/138843 |
作者单位 | (1)Duke Univ, Dept Bot, Durham, NC 27708 USA;(2)Duke Univ, Nicholas Sch Environm, Durham, NC 27708 USA;(3)Natl Ctr Ecol Anal & Synth, Santa Barbara, CA 93101 USA;(4)CSIRO, Div Wildlife & Ecol, Lyneham, ACT 2602, Australia;(5)Carnegie Inst Washington, Dept Plant Biol, Stanford, CA 94305 USA;(6)Univ Arizona, Inst Atmospher Phys, Tucson, AZ 85721 USA;(7)NASA, Goddard Inst Space Studies, New York, NY 10025 USA;(8)Max Planck Inst Meteorol, D-20146 Hamburg, Germany;(9)Univ New Hampshire, Climate Change Res Ctr, GAIM Task Force, Durham, NH 03824 USA;(10)Marine Biol Lab, Ctr Ecosyst, Woods Hole, MA 02543 USA;(11)US Forest Serv, USDA, Corvallis, OR 97331 USA;(12)Colorado State Univ, Dept Rangeland Ecosyst Sci, Ft Collins, CO 80523 USA;(13)Univ Buenos Aires, Fac Agron, Dept Ecol, RA-1417 Buenos Aires, DF, Argentina;(14)Univ Lund, Global Syst Grp, S-22362 Lund, Sweden |
推荐引用方式 GB/T 7714 | Jackson, RB,Schenk, HJ,Jobbagy, EG,et al. Belowground consequences of vegetation change and their treatment in models[J]. University of Arizona, Commonwealth Scientific and Industrial Research Organisation, Colorado State University, E18,2000,10(2):470-483. |
APA | Jackson, RB.,Schenk, HJ.,Jobbagy, EG.,Canadell, J.,Colello, GD.,...&Sykes, MT.(2000).Belowground consequences of vegetation change and their treatment in models.ECOLOGICAL APPLICATIONS,10(2),470-483. |
MLA | Jackson, RB,et al."Belowground consequences of vegetation change and their treatment in models".ECOLOGICAL APPLICATIONS 10.2(2000):470-483. |
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