How ecological restoration alters ecosystem services: an analysis of carbon sequestration in China's Loess Plateau.
How ecological restoration alters ecosystem services: an analysis of carbon sequestration in China's Loess Plateau.
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生态恢复如何改变生态系统服务：中国黄土高原碳汇分析
DOI：
10.1038/srep02846
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发表时间：
2013-10-03
影响因子：
4.6
通讯作者：
Wu, Bingfang
中科院分区：
文献类型：
--
作者：
Feng, Xiaoming;Fu, Bojie;Lu, Nan;Zeng, Yuan;Wu, Bingfang
恢复受干扰和过度开发的生态系统对于减轻人类对自然生态系统的压力非常重要。在过去的十年里，中国启动了一项雄心勃勃的全国生态系统恢复计划，称为退耕还林计划（GTGP）。利用遥感技术和生态系统模型，定量评价了三峡工程实施以来中国生态系统固碳的变化。结果表明，GTGP工程启动后，该地区的NPP和NEP稳步增加，累计固碳96.1 Tg。土壤碳储量的变化是滞后的，因此在这段时间内不显著，但预计在未来几十年内会发生变化。结果表明，黄土高原生态系统从2000年的净碳源向2008年的净碳汇转变。固碳效率受到降水的制约，根据当地气候选择适当的恢复类型（乔木、灌木和草）是实现最佳效益/成本效率的关键。
Restoring disturbed and over-exploited ecosystems is important to mitigate human pressures on natural ecosystems. China has launched an ambitious national ecosystem restoration program called Grain to Green Program (GTGP) over the last decade. By using remote sensing techniques and ecosystem modelling, we quantitatively evaluated the changes in ecosystem carbon sequestration since China's GTGP program during period of 2000–2008. It was found the NPP and NEP in this region had steadily increased after the initiative of the GTGP program and a total of 96.1 Tg of additional carbon had been sequestered during that period. Changes in soil carbon storage were lagged behind and thus insignificant over the period, but was expected to follow in the coming decades. As a result, the Loess Plateau ecosystem had shifted from a net carbon source in 2000 to a net carbon sink in 2008. The carbon sequestration efficiency was constrained by precipitation and appropriate choices of restoration types (trees, shrubs and grasses) in accordance to local climate are critical for achieving the best benefit/cost efficiency.
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