Spatial variation in soil respiration rate is controlled by the content of particulate organic materials in the volcanic ash soil under a plantation

Abe, Yukiko*; Liang, N.*; Teramoto, Munemasa*; Koarashi, Jun; Atarashi-Andoh, Mariko; Hashimoto, Shoji*; Tange, Takeshi*

Geoderma Regional (Internet), 29, p.e00529_1 - e00529_11, 2022/06

https://doi.org/10.1016/j.geodrs.2022.e00529

This study aimed to clarify the causes of spatial variation in soil respiration rate on volcanic ash soil. From January 2013 to August 2019, soil respiration rates were measured at 40 measuring points periodically at a 35-year-old plantation in Tokyo, Japan. In August 2019, the carbon content of the litter layer, total carbon content of soil organic matter (SOM), carbon content of the low-density fraction (LF-C) of SOM, fine root biomass, and bulk density of soil were measured at all measuring points. Results of the multiple regression analysis showed that the model with only the LF-C as an explanatory variable had the highest capability for predicting the respiration rate at a soil temperature of 20C, indicating that LF-C, which is considered to be readily available to soil microorganisms, can be the main factor responsible for the spatial variation in soil respiration rate.

Warming-induced enhancement of soil heterotrophic respiration is linearly increased by the current year's litterfall supply in a cool-temperate forested peatland

Takagi, Kentaro*; Liang, N.*; Aguilos, M.*; Teramoto, Munemasa*; Kondo, Toshiaki*; Koarashi, Jun; Atarashi-Andoh, Mariko

no journal, , 

Long-term warming effect on heterotrophic respiration in a warm-temperate evergreen broad -leaved forest in western Japan

Teramoto, Munemasa*; Kondo, Toshiaki*; Liang, N.*; Zeng, J.*; Nakane, Kaneyuki*; Koarashi, Jun; Atarashi-Andoh, Mariko

no journal, , 

What kind of effect does warming have on soil organic carbon?

Koarashi, Jun; Atarashi-Andoh, Mariko; Takagi, Kentaro*; Kondo, Toshiaki*; Teramoto, Munemasa*; Nagano, Hirohiko; Kokubu, Yoko; Takagi, Masahiro*; Ishida, Sachinobu*; Hiradate, Shuntaro*; et al.

no journal, , 

no abstracts in English

Exploring factors affecting the warming-induced variation in soil respiration by genetic analysis

Kondo, Toshiaki*; Teramoto, Munemasa*; Takagi, Kentaro*; Koarashi, Jun; Atarashi-Andoh, Mariko; Takagi, Masahiro*; Ishida, Sachinobu*; Liang, N.*

no journal, , 

no abstracts in English

Warming effect on soil organic carbon release and its feedback to carbon cycle in Asian forest ecosystems

Liang, N.*; Takahashi, Yoshiyuki*; Teramoto, Munemasa*; Zhao, X.*; Tomimatsu, Hajime*; Takagi, Kentaro*; Hirano, Takashi*; Kondo, Toshiaki*; Koarashi, Jun; Atarashi-Andoh, Mariko; et al.

no journal, , 

no abstracts in English

Warming effects on the quantity and quality of organic carbon in Japanese forest surface soils

Koarashi, Jun; Atarashi-Andoh, Mariko; Takagi, Kentaro*; Kondo, Toshiaki*; Teramoto, Munemasa*; Nagano, Hirohiko; Kokubu, Yoko; Takagi, Masahiro*; Ishida, Sachinobu*; Hiradate, Shuntaro*; et al.

no journal, , 

It is possible that global warming will promote the decomposition of soil organic carbon (SOC) and cause further global warming. In this study, the quantity and quality of SOC (carbon and nitrogen content, stable and radioactive carbon isotope composition, etc.) were investigated in warming and control plots at five forest sites in Japan, where long-term soil warming experiments have been conducted. Results show no remarkable difference in the quantity and quality of SOC stored in surface (0-20 cm) soils between the warming and control plots, suggesting the warming-induced increase in the soil respiration will continue over the next decade, probably due to the abundant SOC storage in Japanese forest surface soils.

Long-term response and feedback of Asian terrestrial ecosystems carbon cycle to global warming

Liang, N.*; Zhang, Y.*; Chiang, P.-N.*; Lai, D.*; Teramoto, Munemasa*; Takagi, Kentaro*; Kondo, Toshiaki*; Koarashi, Jun; Wang, Y.*; Li, S.*; et al.

no journal, , 

Stocks and dynamics of organic carbon in Japanese forest surface soils and their response to long-term experimental warming

Koarashi, Jun; Atarashi-Andoh, Mariko; Takagi, Kentaro*; Kondo, Toshiaki*; Teramoto, Munemasa*; Nagano, Hirohiko; Kokubu, Yoko; Takagi, Masahiro*; Ishida, Sachinobu*; Hiradate, Shuntaro*; et al.

no journal, , 

no abstracts in English

Long-term warming effect on soil carbon fluxes in a red pine forest in Tsukuba

Teramoto, Munemasa*; Liang, N.*; Jiye, Z.*; Koarashi, Jun; Kondo, Toshiaki*; Atarashi-Andoh, Mariko; Aramaki, Takafumi*; Zhao, X.*

no journal, , 

Forest soils are a large source for CO and sink for CH. Understanding long-term response of these soil carbon fluxes to warmer environment is the key to mitigation and adaptation for future climate change. To examine the long-term response of CO flux to global warming in Asian monsoon forests, we set multi-channel automated chamber measurement system in a red pine forest in Tsukuba. Half of the chambers were artificially warmed by infrared heaters. Recently, we started continuous measurement of soil CH flux using a control unit with CH analyzer. Results showed that soil temperature is the primary factor controlling soil CO fluxes, whereas soil moisture is the main factor controlling soil CH uptake in our study site.