收稿日期: 2001-05-11
网络出版日期: 2001-01-10
基金资助
中国科学院“百人计划”及大气物理所创新基金 8 2 30 2资助项目
A Simple Model in Calculating Average Soil Respiration Rate and Soil Carbon Density
Received date: 2001-05-11
Online published: 2001-01-10
杨昕 , 王明星 . 一个计算平均土壤呼吸速率和土壤碳密度的简单模型[J]. 中国科学院大学学报, 2001 , 18(1) : 90 -95 . DOI: 10.7523/j.issn.2095-6134.2001.1.014
Based on observed soil carbon density data over wold wide and model results of net primary production, a simple model was built that can be used directly in calculating average soil respiration rate and soil carbon density. The simulated results have been compared with measurements. According to our model results, the recently view that averaged soil respiration rate does not vary with temperature is under debatable. Using this model, we simulate the distribution of potential soil carbon density on global scale,the calculated global soil organic carbon pool is 1152 Pg. This simple model can successfully simulate the large differences of soil carbon density at different precipitation (or soil moisture) situations.
Key words： average soil respiration rate; soil caron density; carbon pool; climate data; model
1 Post W P, W R Emanual, P J Zinke, et al.Soil Carbon Pools and World Life Zones.Nature, 1982, 298 :156 ～ 159
2 Post W P, J Pastor, P J Zinke, et al.Global Patterns of Soil N itrogen Storage.N ature, 1985, 317 :613 ～ 616
3 Tans P P, I Y Fung, T Takahashi.Observational Constraints on the Global Atmospheric CO2 Budget.Science, 1990, 247 :1431～ 1438
4 Cao M, F I Woodward.Dynamic Responses of Terrestrial Ecosystem Carbon Cycling to G lobal Climate Change.Nature, 1998, 393:249 ～ 252
5 Raich J W, W H Schlesinger.The Global Carbon Dioxide Flux in Soil Respi ration and its Relat ionship to Vegetation and Climate.Tellus B, 1992, 44 :81 ～ 99
6 Liski J, et al.CO2 Emi ssions from Soi l in Responses to Climati c Warming are Overestimated-the Decomposition of Old Soi l Organic Matter is Tolerant of Temperature.Ambio, 1999, 28 :171 ～ 174
7 Giardian C P, M G Ryan.Evidence that Decomposition Rat es of Organic Carbon in Mineral Soil do not Vary With Temperature.Nature, 2000, 404 :858 ～ 861
8 Batjes N H, E M Brides (eds).A Review of Soil Factors and Processes that Control Fluxes of Heat, Moisture and G reenhouse Gases.In :WISE Report No.3, Technical Paper 23, International Soil Reference and Information Center.Wageningen, 1994.97 ～ 148
9 Zinke P J, A G Stangenberger, W P Post, et al.Worldwide O rganic Soil Carbon and Nitrogen Data.ORNL/NDP-018.Oak Ridge N ational Laborato-ry, Oak Ridge, Tennessee, 37831.1986
10 Friedlingstein P, et al.The Climate Induced Variation of the Continental Biosphere:a Model Simulation of the Last G lacial Maximum.Geophy Res Lett, 1992, 19 :897 ～ 900
11 Leemans R, W P Cramer.The IIASA Mean Monthly Temperature, Precipitation and Cloudiness on a G lobal Terrestrial G rid, WP-90-41, BiosphereDynamics Project, International Institute for Applied System Analysis IIASA, A-2361 Laxenburg, Australia, 1990
12 New M, M Hulme, P Jones.Representing Twentieth-century Space-time Climate Variability.Part 1 :Development of a 1961-90 mean monthly terres-trial climatology.J of Climate, 1999, 12 :829 ～ 856
13 Parton W J, D S Schimel, C V Cole, et al.Division s-3-soil M icrobiology and Biochemistry.Soil Sci Soc Am, 1987, 51 :1173 ～ 1179
14 Dai A, I Y Fung.Can Climate Variabi lity Contribute to the “ Missing” Carbon Sink ? Glob Biogeochem Cycl, 1993, 7 :599～ 609
15 Leemans R.Possible Changes in Nature Vegetation Patterns due to a Global Warming, WP-90-08, Biosphere Dynamics Project, International Institute for Applied System Analysis IIASA, A-2361 Laxenburg, Australia, 1990
/
| 〈 |
|
〉 |
