Importance of Considered Organic Versus Inorganic Source of Carbon to Lakes for Calculating Net Effect on Landscape C Budgets
Importance of Considered Organic Versus Inorganic Source of Carbon to Lakes for Calculating Net Effect on Landscape C Budgets
复制标题
考虑湖泊有机碳源与无机碳源对于计算景观碳预算净效应的重要性
DOI：
10.1002/2017jg004159
复制
发表时间：
2018-04
期刊：
影响因子：
--
通讯作者：
Cong-qiang Liu
中科院分区：
文献类型：
--
作者：
Weiqi Lu;Shilu Wang;Kevin M. Yeager;Fang Liu;Qiangsheng Huang;Yuxue Yang;Peng Xiang;Yingchun Lü;Cong-qiang Liu
湖泊和水库转化、排放和掩埋从陆地输出的碳，因此。陆地碳收支的重要组成部分。它们的重要性通常是通过将这些水体整合到陆地初级生产中来评估的，然而，无机碳（IC）的转移可能是不可能的。因为集成电路不是网络生态系统产品的一部分。在无机碳和有机碳的背景下，对湖泊的碳逃逸和有机碳埋藏进行了综合研究。喀斯特集水区自行车系统研究湖泊排放二氧化碳（CO 2）并掩埋。温度1.0±0.2和0.9±0.2 g C m ？2 a ？分别约等于流域生态系统净产量的13%和11%。这些比例代表对…的重大影响。陆地碳预算，考虑到有机起源。然而，集水区碳出口主要由碳排放控制。是由被土壤和二氧化碳溶解的碳酸盐产生的。湖泊co2逸出占土壤co2流出量的不到0.1%。这表明在显著改变陆地碳收支方面几乎没有潜力。这个比较表明。这一重要性可能被夸大了，而有机碳来源的重要性被忽视了。我们的研究建议对淡水生态系统中CO 2逃避和OC埋藏的重要性进行仔细的重新评估。在充分考虑其来源的情况下，制定地方和全球碳预算是必要和紧迫的。
Lakes and reservoirs transform, emit, and bury carbon that is exported from land and are thus.significant components of terrestrial carbon budgets. Their significance is often assessed by integrating.thesewaterbodiesintoterrestrialprimaryproduction.However,thetransferofinorganiccarbon(IC)islikelya.sticking point for these integrations because IC is not part of net ecosystem production. Here we.integrated carbon evasion and organic carbon (OC) burial in a lake in the context of inorganic and OC.cycling in a karst catchment from a system perspective. The lake emitted carbon dioxide (CO 2 ) and buried.OC at rates of 1.0 ± 0.2 and 0.9 ± 0.2 g C m ?2 a ?1 , respectively, approximately equaling 13% and 11% of.catchment net ecosystem production, respectively. These proportions represent significant influences on.terrestrial carbon budgets, given an organic origin. However, catchment carbon export is dominated by IC that.isderivedfromcarbonatesdissolvedbysoilCO 2 .LakeCO 2 evasionaccountsforlessthan0.1%ofsoilCO 2 efflux,.suggesting little potential in significantly altering terrestrial carbon budgets. This comparison indicates the.significance of aquatic CO 2 evasion, requiring an adjustment of terrestrial carbon budgets to recognize.theirdependenceoncarbonorigins.Thesignificancemaybeoverstatedifinorganicoriginisignored.Ourstudy.suggests that a careful reassessment of the significance of CO 2 evasion and OC burial in freshwater ecosystems.to local and global carbon budgets, with full consideration of their sources, is necessary and pressing.
登录
查看更多内容
DOI：
10.1016/j.scitotenv.2014.08.113
发表时间：
2014-12
期刊：
The Science of the total environment
影响因子：
--
作者：
Xiaoguang Xu;Wei Li;Megumu Fujibayashi;M. Nomura;T. Sakamaki;O. Nishimura;Xianning Li
通讯作者：
Xiaoguang Xu;Wei Li;Megumu Fujibayashi;M. Nomura;T. Sakamaki;O. Nishimura;Xianning Li
影响因子：
5.8
作者：
Daniel C. Pope;S. Willett
通讯作者：
Daniel C. Pope;S. Willett
影响因子：
11.6
作者：
Cao, MK;Prince, SD;Shao, XM
通讯作者：
Shao, XM
DOI：
--
发表时间：
2007
期刊：
Carsologica Sinica
影响因子：
--
作者：
Wang Yu-juan
通讯作者：
Wang Yu-juan
影响因子：
4
作者：
F. Leith;M. Garnett;K. Dinsmore;M. Billett;Kate V. Heal
通讯作者：
F. Leith;M. Garnett;K. Dinsmore;M. Billett;Kate V. Heal