The Impact of Land Use/Cover Change on Soil Organic Carbon Stocks and Quality in Mid- subtropical Mountainous Ar ea of Southern China
Received date: 2007-08-02
Revised date: 2007-09-10
Online published: 2007-11-25
Supported by
The Key Project of the Ministry of Education of China, No.JA04166
Land use/cover change (LUCC) is widely recognized as one of the most important driving forces of global carbon cycles. The influence of LUCC from native forest to plantations, secondary forest, orchard and arable land on soil organic carbon (SOC) stores and quality was investigated by using "space for time" method in mid-subtropical mountainous area of southern China. The results show that LUCC has led to great decreased SOC stocks and quality. Considerable SOC and light-fraction organic carbon (LFOC) have been stored in native forest (142.2 t hm-2 and 14.8 t·hm-2, respectively). When native forest was converted to plantations, secondary forest, orchard and arable land, the SOC stocks decreased by 25.6% -28%.7%, 38.0%, 31.8% and 51.2%, respectively. The LFOC stocks decreased by 52.2-57.2% when native forest was converted to woodland plantations and second forest, and by 82.1% -84.2% when to economic plantation, orchard and arable land. After the conversion, the ratios of LFOC to SOC (0-60 cm) decreased from 13.3% to about 3.0%-10.7%. The SOC and LFOC stored in the upper 20 cm soil were more sensitive to LUCC when compared to the subsurface soil layer. Comparison suggests that the effects of the above mentioned LUCC on carbon release and quality deline were greater than the global average level, which could be explained by the vulnerable natural environment and special human management practices. Thus, it is significant to protect vulnerable environment, restore vegetation coverage and afforest plantation reasonably in mountainous area in mid-subtropics, for enhancing soil carbon sequestration, mitigating elevated atmospheric CO2 and sustainably developing ecological services.
Key words： mid-subtropics; LUCC; soil organic carbon; carbon quality
YANG Yusheng, XIE Jinsheng, SHENG Hao, CHEN Guangshui, LI Xu . The Impact of Land Use/Cover Change on Soil Organic Carbon Stocks and Quality in Mid- subtropical Mountainous Ar ea of Southern China[J]. Acta Geographica Sinica, 2007 , 62(11) : 1123 -1131 . DOI: 10.11821/xb200711001
[1] Liu Chengwu, Li Xiubin. Regional differences in the changes of the agricultural land use in China during 1980-2002. Acta Geographica Sinica, 2006, 61(2): 139-145.
[刘成武, 李秀彬. 1980 年以来中国农地利用变化的区域差异. 地理学 报, 2006, 61(2): 139-145.]
[2] IPCC. Summary for Policymakers. In: Solomon S, Qin D, Manning M et al. (eds.). Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge: Cambridge University Press, United Kingdom and New York, NY, USA.2007.
[3] Lugo A E, Sanchez A J. Brown S. Land use and organic carbon content of some subtropical soils. Plant and Soil, 1986, 96: 185-196.
[4] Brown S, Ligo A E, Iverson L R. Processes and lands for sequestering carbon in the tropical forest landscape. Water, Air and Soil Pollution, 1992, 64: 139-155.
[5] Guo L B, Gifford R M. Soil carbon stocks and land use change: A meta analysis. Global Change Biology, 2002, 8: 345-360.
[6] Murty D, Kirschbaum M U F, Mcmurtrie R E et al. Does conversion of forest to agricultural land change soil carbon and nitrogen? a review of the literature. Global Change Biology, 2002, 8: 105-123.
[7] Wu Jianguo, Zhang Xiaoqun, Xu Deying. Impact of land use change on soil carbon storage. Chinese Journal of Applied Ecology, 2004, 15(4): 593-599.
[ 吴建国, 张小全, 徐德应. 土地利用变化对土壤有机碳贮量的影响. 应用生态学报, 2004, 15(4): 593-599.]
[8] Li Zhongpei, Wang Xiaoju. Simulaton of soil organic carbon after changing land use pattern in hilly red soil region. Chinese Journal of Applied Ecology, 1998, 9(4): 365-370.
[李忠佩, 王效举. 红壤丘陵区土地利用方式变更后土壤有 机碳动态变化的模拟. 应用生态学报, 1998, 9(4): 365-370.]
[9] Zhou Tao, Shi Peijun, Wang Shaoqiang. Impacts of climate change and human activities on soil carbon storage in China. Acta Geographica Sinica, 2003, 58(5): 727-734.
[周涛, 史培军, 王绍强. 气候变化及人类活动对中国土壤有机碳储量 的影响. 地理学报, 2003, 58(5): 727-734.]
[10] Li Kerang, Wang Shaoqiang, Cao Mingkui. Vegetation and soil carbon storage in China. Science in China (Series D), 2003, 33(1): 72-80.
[李克让, 王绍强, 曹明奎. 中国植被和土壤碳贮量. 中国科学(D 辑), 2003, 33(1): 72-80.]
[11] Liu Jiyuan, Wang Shaoqiang, Chen Jingming et al. Storage of soil organic carbon and nitrogen and land use change in China: 1990-2000. Acta Geographica Sinica, 2004, 59(4): 483-496.
[刘纪远, 王绍强, 陈镜明等. 1990-2000 年中国土 壤碳氮蓄积量与土地利用变化. 地理学报, 2004, 59(4): 483-496.]
[12] Janzen H H, Campbell C A, Brandt S A et al. Light-fraction organic matter in soils from long-term crop rotations. Soil Science Society of America Journal, 1992, 56: 1799-1806.
[13] Boone R D. Light fraction soil organic matter: origin and contribution to net nitrogen mineralization. Soil Biology and. Biochemistry, 1994, 26: 1459-1468.
[14] Six J, Conant R T, Paul E A et al. Stabilization mechanisms of soil organic matter: Implications for C-saturation of soils. Plant and Soil, 2002, 241: 155-176.
[15] Xie Jinsheng, Yang Yusheng, Xie Mingshu et al. Advance of research on light fraction of soil organic matter. Journal of Fujian College of Forestry, 2006, 26(3): 281-288.
[谢锦升, 杨玉盛, 解明曙等. 土壤轻组有机质研究进展. 福建林 学院学报, 2006, 26(3): 281-288.]
[16] Bremer E, Janzen H H, Johnston A M. Sensitivity of total, light and mineralizable organic matter to management practices in a Lethbridge soil. Canadian Journal of Soil Science, 1994, 74, 131-138.
[17] Yang Qinye, Zheng Du, Wu Shaohong. On subtropical zone of China. Journal of Subtropical Resources and Environment, 2006, 1(1): 1-10.
[ 杨勤业, 郑度, 吴绍洪. 关于中国的亚热带. 亚热带资源与环境学报, 2006, 1(1): 1-10.]
[18] Zhu Hejian, Guo Chengda, Tan Binghua et al. The fundamental characteristics of mountainous and hilly soils in southeast Fujian province. Acta Pedologica Sinica, 1983, 20(3): 225-237.
[朱鹤健, 郭成达, 谭炳华等. 福建东南部山 地丘陵土壤的基本特征. 土壤学报, 1983, 20(3): 225-237.]
[19] Galdwell T G, Johnson D W, Miller W W et al. Forest floor carbon and nitrogen losses due to prescription fire. Soil Science Society of America Journal, 2002, 66: 262-267.
[20] Belillas C M, Feller M C. Relationships between fire severity and atmospheric and leaching nutrient losses in British Colombia's coastal western hemlock zone forests. International Journal of Wildland Fire, 1998, 8: 87-101.
[21] Yang Yusheng. Sustainable Management of Chinese Fir Plantations. Beijing: China Forestry Publishing House, 1998.
[杨玉盛. 杉木林可持续经营的研究. 北京: 中国林业出版社, 1998.]
[22] Ma Xiangqing, Liu Aiqin, He Zhiying et al. Effects of site preparations on ecosystem of Chinese fir plantations. Journal of Mountain Science, 2000, 18(3): 237-243.
[马祥庆, 刘爱琴, 何智英等. 整地方式对杉木人工林生态系统的影响. 山地学报, 2000, 18(3): 237-243.]
[23] Baird M, Zabowski D, Everett R L. Wildfire effects on carbon and nitrogen in inland coniferous forests. Plant and Soil, 1999, 209: 233-243.
[24] Yang Yusheng, Lin Peng, Guo Jianfen et al. Litter production, nutrient return and leaf-litter decomposition in natural and monoculture plantation forests of Castanopsis kawakamii in subtropical China. Acta Ecologica Sinica, 2003, 23(7): 1278-1289.
[杨玉盛, 林鹏, 郭剑芬等. 格氏栲天然林与人工林凋落物数量、养分归还及凋落叶分解(英文). 生态 学报, 2003, 23(7): 1278-1289.]
[25] Yang Yusheng, Chen Guangshui, Lin Peng et al. Fine root distribution, seasonal pattern and production in a native forest and monoculture plantations in subtropical China. Acta Ecologica Sinica, 2003, 23(9): 1719-1730.
[ 杨玉盛, 陈 光水, 林鹏等. 格氏栲天然林与人工林细根生物量、季节动态及净生产力. 生态学报, 2003, 23(9): 1719-1730.]
[26] Smith C K, Oliveira F de A, Gholz H L, et al. Soil carbon stocks after forest conversion to tree plantations in lowland Amazonia, Brazil. Forest Ecology and Management, 2002, 164: 257-263.
[27] Ashagrie Y, Zech W, Guggenberger G. Transformation of a Podocarpus falcatus dominated natural forest into a monoculture Eucalyptus globulus plantation at Munesa, Ethiopia: soil organic C, N and S dynamics in primary particle and aggregate-size fractions.Agriculture, Ecolystems and Environment, 2005, 106: 89-98.
[28] Zinn Y L, Resck, D V S, Silva J E. Soil organic carbon as affected by afforestation with Eucalyptus and Pinus in the Cerrado region of Brazil. Forest Ecology and Management, 2002, 166: 285-294.
[29] Chen G S, Yang Y S, Xie J S et al. Conversion of a natural broad-leaved evergreen forest into pure plantation forests in a subtropical area: Effects on carbon storage. Annals of Forest Science, 2005, 62: 659-668.
[30] Yang J C, Huang J H, Pan Q M et al. Long-term impacts of land use change on dynamics of tropical soil carbon and nitrogen pools. Journal of Environmental Sciences, 2004, 16(2): 256-261.
[31] Richards A E, Dalal R C, Schmidt S. Soil carbon turnover and sequestration in native subtropical tree plantations. Soil Biology and Biochemistry, 2007, 39: 2078-2090.
[32] Lemenih M, Itanna F. Soil carbon stocks and turnovers in various vegetation types and arable lands along an elevation gradient in southern Ethiopia. Geoderma, 2004, 123: 177-188.
[33] Kotto-Same J, Woomer P L, Appolinaire M, et al. Carbon dynamics in slash-and-burn agriculture and land use alternatives of the humid forest zone in Cameroon. Agriculture, Ecosystems and Environment, 1997, 65: 245-256.
[34] Six J, Elliott E T, Paustian K. Aggregate and soil organic matter dynamics under conventional and no-tillage systems. Soil Science Society of America Journal, 1999, 63: 1350-1358.
[35] Lal R, Griffin M, Apt J et al. Managing Soil Carbon. Science, 2004, 304: 393.
[36] Mann L K. Changes in soil carbon storage after cultivation. Soil Science, 1986, 142: 279-288.
[37] Grün zweid J M, Sparrow S D, Yakir D et al. Impact of agricultural land-use change on carbon storage in Boreal Alaska. Global Change Biology, 2004, 10: 452-472.
[38] Puget P, Lal R. Soil organic carbon and nitrogen in a Mollisol in central Ohio as affected by tillage and land use. Soil and Tillage Research, 2005, 80: 201-213.
[39] Balesdent J, Besnard E, Arrouays D et al. The dynamics of carbon in particle-size fractions of soil in a forest-cultivation sequence. Plant and Soil, 1998, 201: 49-57.
[40] Walker S M, Desanker P V. The impact of land use on soil carbon in Miombo Woodlands of Malawi. Forest Ecology and Management, 2004, 203: 345-360.
[41] Detwiler R P. Land use change and the global carbon cycle: The role of tropical soils. Biogeochemistry, 1986, 2: 67-93.
[42] Sombroek W G, Nachtergaele F O, Hebel A. Amounts, dynamics and sequestering of carbon in tropical and subtropical soils. Ambio, 1993, 22(7): 417-426.
/
| 〈 |
|
〉 |