Carbon retention by check dams: Regional scale estimation
Carbon retention by check dams: Regional scale estimation
复制标题
拦河坝的碳滞留：区域规模估算
DOI：
10.1016/j.ecoleng.2012.03.020
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发表时间：
2012-07
影响因子：
3.8
通讯作者：
Wang, Yafeng
中科院分区：
文献类型：
--
作者：
Lu, Yihe;Sun, Ranhao;Fu, Bojie;Wang, Yafeng
淤地坝作为人类引入的流域管理设施，在全球范围内得到了广泛的应用。然而，这些结构对碳保留的影响很少被考虑和量化。基于淤地坝清查数据和效益转移法，提出了一种估算黄土高原延安地区淤地坝固碳效应的简单方法。结果表明，大中型淤地坝保留了约4230万t土壤有机碳，且具有较高的空间变异性。这是一个相当大的数量，相当于整个黄土高原0- 40 cm土壤层中储存的约1.48%的SOC，或者大约是2000年中国化石燃料碳排放量的4%。淤地坝总库容是影响淤地坝固碳效果和县域固碳效果的最重要因素。建坝后的年数也是检查坝水位的一个重要因素。淤地坝的数量、土地利用方式以及地形因素对县级淤地坝固碳能力有不同程度的影响。土壤固碳效率由北向南递减。研究结果可为当地淤地坝发展规划提供重要的决策支持。本研究还揭示了土壤侵蚀与碳循环关系的固碳效应量化的科学价值。在这方面，迫切需要进行基于进程的监测和研究。
Check dams have been widely used globally as human introduced structures for watershed management for various purposes. However, the effects of these structures for carbon retention have been scarcely considered and quantified. This research formulated a simple approach in estimating the carbon retention effects of check dams in Yan’an prefecture of the Loess Plateau region of China based on check dam inventory data and benefit transfer approach. Results indicated that the large and medium sized check dams had retained about 42.3 million tons of soil organic carbon (SOC) with a high spatial variability. This is a significant amount similar to about 1.48% of the SOC stored in the 0–40cm soil layer across the whole Loess Plateau or roughly 4% of the estimated carbon emission from fossil fuel in China in 2000. Total volume of check dam is the most important influencing factor for carbon retention effects at both check dam and county-levels. Years after construction is also a significant factor at check dam level. The numbers of check dams and land use as well as topographical factors have impacts on the respect of check dam carbon retention of varied significance at the county-level. The effectiveness of carbon retention decreased from north to south. The results of this research can be used as important decision support for check dam development planning at the local context. This research also revealed the scientific worthiness in quantifying the carbon retention effects concerning the relationships between soil erosion and carbon cycling. On this respect, process-based monitoring and research are urgently in need.
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影响因子：
--
作者：
J. Kimble
通讯作者：
J. Kimble
影响因子：
6.7
作者：
Kulbhushan Balooni;A. Kalro;A. Kamalamma
通讯作者：
Kulbhushan Balooni;A. Kalro;A. Kamalamma
影响因子：
3.3
作者：
G. Bombino;A. Gurnell;V. Tamburino;D. Zema;S. M. Zimbone
通讯作者：
G. Bombino;A. Gurnell;V. Tamburino;D. Zema;S. M. Zimbone
影响因子：
14.6
作者：
Martijn Gough
通讯作者：
Martijn Gough
DOI：
10.1016/j.cosust.2009.07.013
发表时间：
2009-10
期刊：
--
影响因子：
--
作者：
R. Leemans;G. Asrar;A. Busalacchi;J. Canadell;J. Ingram;A. Larigauderie;H. Mooney;C. Nobre;A. Patwardhan;M. Rice;Falk Schmidt;S. Seitzinger;H. Virji;C. Vörösmarty;O. Young
通讯作者：
R. Leemans;G. Asrar;A. Busalacchi;J. Canadell;J. Ingram;A. Larigauderie;H. Mooney;C. Nobre;A. Patwardhan;M. Rice;Falk Schmidt;S. Seitzinger;H. Virji;C. Vörösmarty;O. Young