Changes of C and N stocks in the subtropical Dianchi lake watershed in southwest China due to LUCC

Our results showed that converting forest to greenhouse vegetable production led to increases in SOC and TN concentrations and stocks, and decreases in C:N ratio in the top soil.

📌 3 Key Takeaways

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Objective & Hypothesis:The change from forest to agricultural land in the last three decades represents a significant shift in land use in China.

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Key Findings & Data:Our results showed that converting forest to greenhouse vegetable production led to increases in SOC and TN concentrations and stocks, and decreases in C:N ratio in the top soil.

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Conclusion & Impact:We conclude that greenhouse vegetable production system could be an effective strategy to improve SOC and TN stocks in the subtropical Dianchi lake watershed.

🔬Design:Research Article

📍Scope:Comprehensive Sample

⚙️Variables:Domain Parameters

Abstract

The change from forest to agricultural land in the last three decades represents a significant shift in land use in China. This study was conducted to evaluate how change from forest to greenhouse cabbage production affected soil organic carbon (SOC) and total nitrogen (TN) stocks in surface soil. Our results showed that converting forest to greenhouse vegetable production led to increases in SOC and TN concentrations and stocks, and decreases in C:N ratio in the top soil. The accumulation rates of SOC and TN in the surface soil (0-40cm) were estimated to be 4.638 Mg ha-1 yr-1 and 1.113 Mg ha-1 yr-1 respectively, over an average period of 8 years after change of forest to greenhouse vegetable production. We conclude that greenhouse vegetable production system could be an effective strategy to improve SOC and TN stocks in the subtropical Dianchi lake watershed.

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Cite This Article

ZHANG, M., YANG, H., BİAO, X., SUN, P., Lİ, J., ZOU, J., WANG, Y. (2016). Changes of C and N stocks in the subtropical Dianchi lake watershed in southwest China due to LUCC. Eurasian Journal of Soil Science, Cilt: 5 - Sayı: 1, 17–23. https://ajindex.com/articles/756762

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References (10)

Blake, G.R., Hartge, K.H., 1986. Bulk density. In: Klute, A. (Ed.), Methods of Soil Analysis. Part 1. 2nd ed. Am. Soc. Ag., Soil Sci. Soc. Am. Madison, WI, pp. 363–375.
Brye, K.R., Norman, J.M., Bundy, L.G., Gower, S.T., 2001. Nitrogen and carbon leaching in agroecosystems and their role in denitrification. Journal of Environmental Quality 30: 58–70.
Chen, H.Q., Lee, J., Kuzyakov, Y., Six, J., 2012. Soil organic carbon and total nitrogen in intensively managed arable soils. Agriculture, Ecosystems & Environment 150:102-110.
Deen, W., Kataki, P.K., 2003. Carbon sequestration in a long-term conventional versus conservation tillage experiment. Soil and Tillage Research 74:143-150.
Demessie, A., Singh, B.R., Lal, R., 2013. Soil carbon and nitrogen stocks under chronosequence of farm and traditional agroforestry land uses in Gambo District, Southern Ethiopia. Nutrient Cycling in Agroecosystems 95: 365–375.
Dong, Y., Dong, K., Lu, Y., Zhao, P., Tang, L. 2009. Influence of greenhouse cultivation on soil chemical properties and microbial community. Journal of Yunnan Agricultural University 24(3): 418-424. [in Chinese, with English abstract] Ellert, B.H., Bettany, E.T., 1995. Calculation of organic matter and nutrients stored insoils under contrasting management regimes. Canadian Journal of Soil Science 75: 529–538.
Falahatkar, S., Hosseini, S.M. Mahiny, A.S., Ayoubi, S., Wang, S.Q., 2014. Soil organic carbon stock as affected by land use/cover changes in the humid region of Northern Iran. Journal of Mountain Science 11(2): 507-518.
Gao, M., Yang, H., 2006. Distribution of soil nutrient and its environmental impact under different land utilization in Dounan of Dianchi watershed. Journal of Anhui Agricultural Science 34(23): 6255-6257, 6259. [in Chinese, with English abstract] Gelaw, A.M., Singh, B.R., Lal, R. 2014. Soil organic carbon and total nitrogen stocks under different land uses in a semi-arid watershed in Tigray, Northern Ethiopia. Agriculture, Ecosystems and Environment 188: 256–263.
Jiang, J.B., Jia, X.S., Qiao, J., Man, C.H., Wu, G.X., 2011. Assessment of vegetable greenhouse and development for new sunlight greenhouse. Chinese Vegetable 11: 8-10. [in Chinese, with English abstract] Kaffka S., Koepf H.H., 1989. A case study on the nutrient regime in sustainable farming. Biological Agriculture and Horticulture: An International Journal for Sustainable Production Systems 6: 89-106.
Karchegani, M.P., Ayoubi, S., Mosaddeghi, M.R., Honarjoo, N., 2012. Soil or