Temporal and Spatial Pattern of Net Primary Production of Terrestrial Ecosystems in China
Received date: 2002-07-28
Revised date: 2003-02-19
Online published: 2003-05-25
Supported by
Knowledge Innovation Project of IGSNRR, CAS, No.CXIOG-E01-02-04
In this study, we used a biogeochemical model that has been validated at regional and global scales to estimate the temporal and spatial variations of China's terrestrial NPP (Net Primary Productivity) and its responses to interannual climate variability in the period of 1981-1998. The results show that the average annual total NPP is about 3.09 Gt C/yr and average NPP is about 342 g C/m2. NPP exhibited an increasing trend during the study period by 0.32%/yr. In some ENSO years (e.g. 1982, 1986, and 1997) NPP decreased significantly, but the relationship between the ENSO cycle and NPP is complex due to the complex effects of monsoons and regional climatic variability. For example, in the ENSO years of 1993 and 1994, NPP did not show a clear decreasing trend, even increased with 0.12 Gt in 1994. At the national level, the precipitation is the key factor controlling the NPP variations and a weak correlation exists between NPP and temperature, but regional responses are different. Northeast China (R2 = 0.85,P < 0.01), Northwest China (R2 = 0.97, P < 0.01), Inner Mongolia (R22 = 0.97, P < 0.01), and North China (R2 = 0.96, P < 0.01) have significant correlation with precipitation. In South China, the middle and lower reaches of the Yangtze River, and Central China, the correlation is weak.
Key words： terrestrial ecosystem; NPP; interannual variations; climate change; China
TAO Bo, LI Kerang, SHAO Xuemei, CAO Mingkui . Temporal and Spatial Pattern of Net Primary Production of Terrestrial Ecosystems in China[J]. Acta Geographica Sinica, 2003 , 58(3) : 372 -380 . DOI: 10.11821/xb200303006
[1] Schimel D, Enting I G, Heimann M et al. CO2 and the carbon cycle. In: Climate Change 1994 (Intergovernmental panel on climate change). Cambridge: Cambridge University Press, 1995.
[2] Cao Mingkui, F I Woodward. Dynamic responses of terrestrial ecosystem carbon cycling to global climate change. Nature, 1998, 393: 249-252.
[3] Cao Mingkui, F. Ian Woodward. Net primary and ecosystem production and carbon stocks of terrestrial ecosystems and their responses to climate change. Global Change Biology, 1998, 4: 185-198.
[4] Liu J, Chen J M, Cihlar J et al. Net primary productivity distribution in the BOREAS region form a process model using satellite and surface data. Journal of Geophysical Research, 1999, 104(D22): 27,735-27,754.
[5] Li Yinpeng, Ji Jinjun. Simulations of carbon exchange between global terrestrial ecosystem and the atmosphere. Acta Geographica Sinica, 2001, 56(4): 379-389.
[李银鹏, 季劲钧. 全球陆地生态系统与大气之间碳交换的模拟研究. 地理学报, 2001, 56(4): 379-389.]
[6] Zhu Zhihui. A model to estimate net primary productivity of natural vegetation. Chinese Science Bulletin, 1993, 38(15): 1422-1426.
[朱志辉. 自然植被净第一生产力估计模型. 科学通报, 1993, 38(15): 1422-1426.]
[7] Zhang Xianzhou. Estimation and distribution of net primary productivity of China's natural vegetation. Natural Resources, 1993, (1): 15-21.
[张宪洲. 我国自然植被净第一性生产力的估算与分布. 自然资源, 1993, (1): 15-21.]
[8] Zhou Guangsheng. NPP of natural vegetation in China under global climate change. Acta Phytoecologica Sinica, 1996, 20(1): 11-19.
[周广胜. 全球气候变化的中国自然植被的净第一性生产力研究. 植物生态学报, 1996, 20(1): 11-19.]
[9] Sun Rui, Zhu Qijiang. Distribution and seasonal change of net primary productivity in China from April, 1992 to March, 1993. Acta Gegraphica Sinica, 2000, 55(1): 36-45.
[孙睿, 朱启疆. 中国陆地植被第一性生产力及季节变化的研究. 地理学报, 2000, 55(1): 36-55.]
[10] Cheng Lijun. Evaluation of net primary productivity of terrestrial vegetation in China by remote sensing. Acta Botanica Sinica, 2001, 43(11): 1191-1198.
[11] Woodward F I, Thomas M Smith, William R Emanuel et al. A global land primary productivity and phytogeography model. Global Biogeochemical Cycle, 1995, 9: 471-490.
[12] Lloyd J. The CO2 dependence of photosynthesis, plant growth responses to elevated atmospheric CO2 concentration and their interaction with soil nutrient status. Functional Ecology, 1996, 10: 4-32.
[13] Givnish. Optimal Stomatal Conductance, Allocation of Energy between Leaves and Roots, and the Marginal Cost of Transpiration. Cambridge: Cambridge University Press, 1986. 171-213.
[14] Zhang D. Terrestrial net primary productivity estimate for 0.5 degree cell from field observation: a contribution to global biogeochemical modeling. Global Change Biology, 2001. (in press)
[15] Defries R S. Global land cover classification at 8 km spatial resolution: the use of training data derived from Landsat imagery in decision tree classifiers. International Journal of Remote Sensing, 1998, 19: 3141-3168.
[16] Michael J. Biospheric primary production during an ENSO transition. Science, 2001, 291:2594-2597.
[17] Jin Zuhui, Tao Shiyan. A study on the relationships between ENSO cycle and rainfalls during summer and winter in eastern China. Chinese Journal of Atmospheric Sciences, 1999, 23(6): 663-671.
[金祖辉, 陶诗言. ENSO循环与中国东部地区夏季和冬季降水关系的研究. 大气科学, 1999, 23(6): 663-671.]
[18] S J Goetz, S D Prince, S N Goward et al. Satellite sensing of primary production: an improved production efficiency modeling approach. Journal of Geophysical Research, 2000, 105(D15): 20,077-20091.
[19] Piao Shilong, Fang Jingyun, Guo Qinghua. Terrestrial net primary production and its spatio-temproal patterns in China during 1982-1999. Acta Scientiarum Naturalium Universitatis Pekinensis, 2001, 37(4): 563-569.
[朴世龙, 方精云, 郭庆华. 1982-1999年我国植被净第一性生产力及其时空变化. 北京大学学报, 2001, 37(4): 563-569.]
[20] Sun Rui. Effect of climate change of terrestrial net primaruy productivity in China. Journal of Remote Sensing, 2001, 5(1): 58-61.
[孙睿. 气候变化对中国陆地生态系统净第一性生产力影响的初步研究. 遥感学报, 2001, 5(1): 58-61.]
[21] Xiao Xiangming. Net primary production of terrestrial ecosystems in China and its equilibrium responses to changes in climate and atmospheric CO2 concentration. Acta Phytoecologica Sinica, 1998, 22(2): 97-118.
[22] Liu Mingliang. Land-use/cover change and terrestrial ecosystem phytomass carbon pool and production in China. In: The Doctoral Dissertation of the Institute of Remote Sensing Applications, CAS, 2001.
[刘明亮. 中国土地利用/土地覆被变化与陆地生态系统植被碳库和生产力研究. 中国科学院遥感应用研究所博士论文, 2001.]
[23] Liu Shirong, Xu Deying, Wang Bing et al. The impacts of climate change on productivity of the forests in China. In: Xu Deying (ed.), A Study on the Impacts of Climate Change on Forests in China. Beijing: China Science and Technology Press, 1997. 75-93.
[刘世荣, 徐德应, 王兵等. 气候变化对中国森林生产力的影响. 见: 徐德应 主编, 气候变化对中国森林影响研究. 北京: 中国科学技术出版社, 1997. 75-93.]
/
| 〈 |
|
〉 |