SwePub
Sök i LIBRIS databas

  Extended search

(WFRF:(Han Shizhong))
 

Search: (WFRF:(Han Shizhong)) > Climate and litter ...

Climate and litter C/N ratio constrain soil organic carbon accumulation

Zhou, Guoyi (author)
Xu, Shan (author)
Ciais, Philippe (author)
show more...
Manzoni, Stefano (author)
Stockholms universitet,Institutionen för naturgeografi
Fang, Jingyun (author)
Yu, Guirui (author)
Tang, Xuli (author)
Zhou, Ping (author)
Wang, Wantong (author)
Yan, Junhua (author)
Wang, Gengxu (author)
Ma, Keping (author)
Li, Shenggong (author)
Du, Sheng (author)
Han, Shijie (author)
Ma, Youxin (author)
Zhang, Deqiang (author)
Liu, Juxiu (author)
Liu, Shizhong (author)
Chu, Guowei (author)
Zhang, Qianmei (author)
Li, Yuelin (author)
Huang, Wenjuan (author)
Ren, Hai (author)
Lu, Xiankai (author)
Chen, Xiuzhi (author)
show less...
 (creator_code:org_t)
2019-03-29
2019
English.
In: National Science Review. - : Oxford University Press (OUP). - 2095-5138 .- 2053-714X. ; 6:4, s. 746-757
  • Journal article (peer-reviewed)
Abstract Subject headings
Close  
  • Soil organic carbon (SOC) plays critical roles in stabilizing atmospheric CO2 concentration, but the mechanistic controls on the amount and distribution of SOC on global scales are not well understood. In turn, this has hampered the ability to model global C budgets and to find measures to mitigate climate change. Here, based on the data from a large field survey campaign with 2600 plots across China's forest ecosystems and a global collection of published data from forested land, we find that a low litter carbon-to-nitrogen ratio (C/N) and high wetness index (P/PET, precipitation-to-potential-evapotranspiration ratio) are the two factors that promote SOC accumulation, with only minor contributions of litter quantity and soil texture. The field survey data demonstrated that high plant diversity decreased litter C/N and thus indirectly promoted SOC accumulation by increasing the litter quality. We conclude that any changes in plant-community composition, plant-species richness and environmental factors that can reduce the litter C/N ratio, or climatic changes that increase wetness index, may promote SOC accumulation. The study provides a guideline for modeling the carbon cycle of various ecosystem scales and formulates the principle for land-based actions for mitigating the rising atmospheric CO2 concentration.

Subject headings

NATURVETENSKAP  -- Geovetenskap och miljövetenskap (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences (hsv//eng)

Keyword

litter carbon-to-nitrogen
wetness index
annual litterfall
soil texture
soil organic carbon

Publication and Content Type

ref (subject category)
art (subject category)

Find in a library

To the university's database

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Close

Copy and save the link in order to return to this view