|
|
|
|
|
| Evaluating the grassland net primary productivity of southern China from 2000 to 2011 using a new climate productivity model |
| SUN Cheng-ming1*, ZHONG Xiao-chun2*, CHEN Chen1, GU Ting1, CHEN Wen1 |
1 Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, P.R.China
2 Institute of Agriculture Information, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R.China |
|
|
|
|
Abstract Grassland is the important component of the terrestrial ecosystems. Estimating net primary productivity (NPP) of grassland ecosystem has been a central focus in global climate change researches. To simulate the grassland NPP in southern China, we built a new climate productivity model, and validated the model with the measured data from different years in the past. The results showed that there was a logarithmic correlation between the grassland NPP and the mean annual temperature, and there was a linear positive correlation between the grassland NPP and the annual precipitation in southern China. All these results reached a very significant level (P<0.01). There was a good correlation between the simulated and the measured NPP, with R2 of 0.8027, reaching the very significant level. Meanwhile, both root mean square errors (RMSE) and relative root-mean-square errors (RRMSE) stayed at a relatively low level, showing that the simulation results of the model were reliable. The NPP values in the study area had a decreasing trend from east to west and from south to north, and the mean NPP was 471.62 g C m−2 from 2000 to 2011. Additionally, there was a rising trend year by year for the mean annual NPP of southern grassland and the tilt rate of the mean annual NPP was 3.49 g C m−2 yr−1 in recent 12 years. The above results provided a new method for grassland NPP estimation in southern China.
|
|
Received: 15 June 2015
Accepted:
|
| Fund: This work was mainly funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions, China (PAPD), and the Science and Technology Innovation Project Fund of Chinese Academy of Agricultural Sciences (2015). |
|
Corresponding Authors:
SUN Cheng-ming, Tel: +86-514-87979381, E-mail: cmsun@yzu.edu.cn
|
Cite this article:
SUN Cheng-ming, ZHONG Xiao-chun, CHEN Chen, GU Ting, CHEN Wen.
2016.
Evaluating the grassland net primary productivity of southern China from 2000 to 2011 using a new climate productivity model. Journal of Integrative Agriculture, 15(7): 1638-1644.
|
| Cao M K, Woodward F I. 1998. Dynamic responses of terrestrial ecosystem carbon cycling to global climate change. Nature, 393, 249–252.Chen Z X, Zhang X S. 2000. The value of Chinese ecological system benefit. Chinese Science Bulletin, 45, 17–22. (in Chinese)Fang J Y, Chen A P, Peng C H, Zhao S Q, Ci L J. 2001. Changes in forest biomass carbon storage in China between 1949 and 1998. Science, 292, 2320–2322.Gao Y H, Zhou X, Wang Q, Wang C Z, Zhan Z M, Chen L F, Yan J X, Qu R. 2013. Vegetation net primary productivity and its response to climate change during 2001–2008 in the Tibetan Plateau. Science of the Total Environment, 444, 356–362.Gu X P, Huang M, Ji J J, Wu Z P. 2007. The influence of climate change on vegetation net primary productivity in southwestern China during recent 20 years period. Journal of Natural Resources, 22, 451–259. (in Chinese)He Y, Dong W J, Guo X Y, Dan L. 2007. The terrestrial growth and its relationship with climate in China based on the MODIS data. Acta Ecologica Sinica, 27, 5086–5092. (in Chinese)Hou Y Y, Liu Q H, Yan H, Tian G L. 2007. Variation trends of China terrestrial veget ation net primary productivity and its responses to climate factors in 1982–2000. Chinese Journal of Applied Ecology, 18, 1546–1553. (in Chinese)Knapp A K, Smith M D. 2001. Variation among biomes in temporal dynamics of aboveground primary production. Science, 291, 481–484.Niu J M. 2001. Impacts prediction of climatic change on distribution and production of grassland in Inner Mongolia. Acta Agrestia Sinica, 9, 277–282. (in Chinese)Lei T J, W u J J, Li X H, Geng G P, Shao C L, Zhou H K, Wang Q F, Liu LZ. 2015. A new framework for evaluating the impacts of drought on net primary productivity of grassland. Science of the Total Enviroment, 536, 161–172.Li G, Zhou L, Wang D L, Xin X P, Yang G X, Zhang H B, Chen B R. 2008. Variation of net primary productivity of grassland and its response to climate in Inner Mongolia. Ecology and Environment, 17, 1948–1955. (in Chinese)Li S S, Lv S H, Zhang Y J, Liu Y P, Gao Y H, Ao Y H. 2015. The change of global terrestrial ecosystem net primary productivity (NPP) and its response to climate change in CMIP5. Theoretical and Applied Climatology, 121, 319–335.Long H L, Li X B, Huang L M, Wang H, Wei D D. 2010. Net primary productivity in grassland ecosystem in Inner Mongolia and its relationship with climate. Chinese Journal of Plant Ecology, 34, 781–791. (in Chinese)Mao J F, Dan L, Wang B, Dai Y J. 2010. Simulation and evaluation of terrestrial ecosystem NPP with M-SDGVM over continental China. Advances in Atmospheric Sciences, 27, 427–442.Mohamed M A, Babiker I S, Chen Z M, Ikeda K, Ohta K, Kato K. 2004. The role of climate variability in the inter-annual variation of terrestrial net primary production (NPP). Science of Total Environment, 332, 123–137.Nemani R R, Keeling C D, Hashimoto H, Jolly W M, Piper S C, Tucker C J, Myneni R B, Running S W. 2003. Climate-driven increases in global terrestrial net primary production from 1982 to 1999. Science, 300, 1560–1563.Ouyang S, Wang X P, Wu Y L, Sun O J. 2014. Contrasting responses of net primary productivity to inter-annual variability and changes of climate among three forest types in northern China. Journal of Plant Ecology, 7, 309–320.Pachavo G, Murwira A. 2014. Remote sensing net primary productivity (NPP) estimation with the aid of GIS modelled shortwave radiation (SWR) in a Southern African Savanna. International Journal of Applied Earth Observation and Geoinformation, 30, 217–226.Sala O E, Chapin Ⅲ F S, Armesto J J, Berlow E, Bloomfield J, Dirzo R, Huber-Sanwald E, Huenneke L F, Jackson R B, Kinzig A, Leemans R, Lodge D M, Mooney H A, Oesterheld M, Poff N L, Sykes M T, Walker B H, Walker M, Wall D H. 2000. Global biodiversity scenarios for the year 2100. Science, 287, 1770–1774.Shi X M, Huang F, Chen X G, Shang Y S, Wu Y P, Zheng P F. 2008. Effects of the climate change to the grass ecosystem in Ningxia. Journal of Arid Land Resources and Environment, 22, 65–69. (in Chinese)Su Q H, An S Z, Zhao L. 2010. Computation and analysis of NPP in vorthern slope of Tianshan Mountain based on 5 kinds of climate-productivity model. Xinjiang Agricultural Sciences, 47, 1786–1791. (in Chinese)Xu L L, Bao S M, Li R T. 2004. Analysis on social and economical benefit of flourishing pasturage by grassplanting in the south of China. Journal of East China Institute of Technology, 23, 93–96. (in Chinese)Xu X, Niu S L, Sherry R A, Zhou X H, Zhou J Z, Luo Y Q. 2012. Interannual variability in responses of belowground net primary productivity (NPP) and NPP partitioning to long-term warming and clipping in a tallgrass prairie. Global Change Biology, 18, 1648–1656.Zhang G G, Kang Y M, Han G D, Sakurai K. 2011. Effect of climate change over the past half century on the distribution, extent and NPP of ecosystems of Inner Mongolia. Global Change Biology, 17, 377–389.Zhao D S, Wu S H, Yin Y H. 2013. Responses of terrestrial ecosystems’ net primary productivity to future regional climate change in China. PLoS ONE, 8, e60849. |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
