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Soil respiration response to precipitation reduction in a grassland and a Mongolian pine plantation in semi-arid northeast China

Hu, Ya-Lin ; Li, Jintao LU ; Zhao, Shan-Yu and Zeng, De-Hui (2019) In Journal of Forestry Research 30(5). p.1925-1934
Abstract
Climate change is predicted to alter global precipitation regimes. However, the response of soil carbon and nitrogen cycles and soil microorganisms to precipitation reduction is poorly understood but is dependent on ecosystem type. To evaluate the impacts of reduced precipitation on soil respiration, soil inorganic nitrogen (i.e., NH4+–N and NO3−–N), nitrogen mineralization, and soil microbial community composition, a precipitation manipulation experiment was initiated in a Mongolian pine plantation and a naturally restored grassland in semi-arid northeast China. Precipitation reduction led to decreases of soil respiration rates by 14 and 8% in 2014 and 2015 in the Mongolian pine plantation but no changes in the grassland. Soil inorganic... (More)
Climate change is predicted to alter global precipitation regimes. However, the response of soil carbon and nitrogen cycles and soil microorganisms to precipitation reduction is poorly understood but is dependent on ecosystem type. To evaluate the impacts of reduced precipitation on soil respiration, soil inorganic nitrogen (i.e., NH4+–N and NO3−–N), nitrogen mineralization, and soil microbial community composition, a precipitation manipulation experiment was initiated in a Mongolian pine plantation and a naturally restored grassland in semi-arid northeast China. Precipitation reduction led to decreases of soil respiration rates by 14 and 8% in 2014 and 2015 in the Mongolian pine plantation but no changes in the grassland. Soil inorganic nitrogen, ammonification and nitrification rate, and soil phospholipids fatty acids were not significantly changed by reduced precipitation but significantly differed between the two ecosystems and among growing seasons. Our results suggest that the impacts of precipitation reduction on soil respiration were different between the Mongolian pine plantation and the grassland, and that ecosystem type and growing season had more pronounced impacts on soil carbon and nitrogen cycles.

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author
; ; and
publishing date
type
Contribution to journal
publication status
published
in
Journal of Forestry Research
volume
30
issue
5
pages
1925 - 1934
publisher
Springer
external identifiers
  • scopus:85049055693
ISSN
1993-0607
DOI
10.1007/s11676-018-0733-3
language
English
LU publication?
no
id
24b25afe-166a-4f83-9de2-a70f981eadcf
date added to LUP
2022-03-12 04:01:16
date last changed
2022-07-24 04:23:19
@article{24b25afe-166a-4f83-9de2-a70f981eadcf,
  abstract     = {{Climate change is predicted to alter global precipitation regimes. However, the response of soil carbon and nitrogen cycles and soil microorganisms to precipitation reduction is poorly understood but is dependent on ecosystem type. To evaluate the impacts of reduced precipitation on soil respiration, soil inorganic nitrogen (i.e., NH4+–N and NO3−–N), nitrogen mineralization, and soil microbial community composition, a precipitation manipulation experiment was initiated in a Mongolian pine plantation and a naturally restored grassland in semi-arid northeast China. Precipitation reduction led to decreases of soil respiration rates by 14 and 8% in 2014 and 2015 in the Mongolian pine plantation but no changes in the grassland. Soil inorganic nitrogen, ammonification and nitrification rate, and soil phospholipids fatty acids were not significantly changed by reduced precipitation but significantly differed between the two ecosystems and among growing seasons. Our results suggest that the impacts of precipitation reduction on soil respiration were different between the Mongolian pine plantation and the grassland, and that ecosystem type and growing season had more pronounced impacts on soil carbon and nitrogen cycles.<br/><br/>}},
  author       = {{Hu, Ya-Lin and Li, Jintao and Zhao, Shan-Yu and Zeng, De-Hui}},
  issn         = {{1993-0607}},
  language     = {{eng}},
  month        = {{06}},
  number       = {{5}},
  pages        = {{1925--1934}},
  publisher    = {{Springer}},
  series       = {{Journal of Forestry Research}},
  title        = {{Soil respiration response to precipitation reduction in a grassland and a Mongolian pine plantation in semi-arid northeast China}},
  url          = {{http://dx.doi.org/10.1007/s11676-018-0733-3}},
  doi          = {{10.1007/s11676-018-0733-3}},
  volume       = {{30}},
  year         = {{2019}},
}