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

Year 2016, Volume: 5 Issue: 1, 17 - 23, 02.01.2016

Mingli Zhang Hao Yang Xie Biao Panpan Sun Jing Li Jun Zou Yanhua Wang

https://doi.org/10.18393/ejss.2016.1.017-023

Cited By: 1

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.

Keywords

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