Biometric-based estimation of net ecosystem production in a mature Japanese cedar (Cryptomeria japonica) plantation beneath a flux tower

Yashiro, Yuichiro; Lee, Na Yeon M; Ohtsuka, Toshiyuki; Shizu, Yoko; Saitoh, Taku M.; Koizumi, Hiroshi

doi:10.1007/s10265-010-0323-8

Cited by 32 publications

(16 citation statements)

References 31 publications

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“…This decline in annual biomass C accumulation in older stands is similar to that reported in other studies (Binkley et al, 2002; Ryan et al, 2004), implying that younger stands have a larger C sink capacity. The mean value of annual biomass C increments for Japanese cedar plantations in Xitou is higher than the mean values for Japanese cedar plantations in Japan (2.1 Mg C ha -1 ; Fukuda et al, 2003), but less than those from several specific experimental plots, including a 40-year-old plot in Takayama (4.1 Mg C ha -1 yr -1 ; Yashiro et al, 2010) and a 31-year-old and a 71 year-old plot in Tottori (7.0 and 5.4 Mg C ha -1 yr -1 ; Hosoda, 1999). …”

Section: Discussionmentioning

confidence: 81%

Biomass carbon accumulation in aging Japanese cedar plantations in Xitou, central Taiwan

et al. 2013

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BackgroundJapanese cedar (Chrytomeria japonica D. Don) is an important plantation species in Taiwan and represents 10% of total plantation area. It was first introduced in 1910 and widely planted in the northern and central mountainous areas of Taiwan. However, a change in forest management from exotic species to native species in 1980 had resulted in few new Japanese cedar plantations being established. Most Japanese cedar plantations are now between 30 and 50 years old and reaching their rotation period. It is of interest to know whether these plantations could be viable for future carbon sequestration through the accumulations of stand carbon stocks. Twelve even-aged Japanese cedar stands along a stand age gradient from 37 to 93 years were selected in Xitou of central Taiwan. The study aims were to investigate the basic stand characteristics and biomass carbon stock in current Japanese cedar stands, and determine the relationships among stand characteristics, tree biomass carbon, and stand age.ResultsOur results indicate that existing Japanese cedar plantations are still developing and their live tree biomass carbon continues to accumulate. At stands with a stand age of 90 years, tree density, canopy height, mean diameter at breast height, basal area, and live tree biomass carbon stocks reach to nearly 430 tree ha-1, 27 m, 48 cm, 82 m2 ha-1 and 300 Mg C ha-1, respectively.ConclusionsTherefore, with no harvesting, current Japanese cedar plantations provide a carbon sink by storing carbon in tree biomass.Electronic supplementary materialThe online version of this article (doi:10.1186/1999-3110-54-60) contains supplementary material, which is available to authorized users.

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Section: Discussionmentioning

confidence: 81%

Biomass carbon accumulation in aging Japanese cedar plantations in Xitou, central Taiwan

et al. 2013

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“…Significantly higher floor litter C in FF than in PP indicates slower decomposition and/or faster accumulation in FF (Table 1). In a mature Cryptomeria japonica forest, annual litterfall C was 0.27 kg m −2 [18]. Therefore, litter production C as the sum of this plus AG biomass C from grasses is about 0.8 kg m −2 , indicating that the total litter production in PP was more than that in FF.…”

Section: Plant-derived C and N In Forest Floor Litter And Abandoned Pmentioning

confidence: 97%

Land Use Alters the Plant-Derived Carbon and Nitrogen Pools in Terraced Rice Paddies in a Mountain Village

Shimoda

Koyanagi

2017

Sustainability

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Abstract:In Japan, terraced paddies in mountain villages are symbolic of the traditional landscape, but they are gradually being abandoned. To compare plant-derived C and N among land uses, we compared adjacent forest floor (FF), agricultural paddy (AP), and post-agricultural paddy (PP) sites. Long-term litter accumulation could explain the significantly higher litter C and belowground biomass C in FF than in AP and PP. The low-density-fraction (LF) soil C was significantly higher in FF than in PP and better reflected land use than the whole-soil C. The AP soil held more N than FF and PP at 20-30 cm, associated with higher LF soil N. Periodic tillage in AP maintains the LF soil N, but N supplied to the surface soil reduced with depth following abandonment. Differences in recycling of organic matter and nutrients among land uses are crucial to plant-derived C and N contents of soil.

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“…Furthermore, annual average net primary production and soil respiration estimated at the ecological research plot at the TKC site were 7.70 and 6.83 MgC ha -1 year -1 (Yashiro et al 2010). Hanson et al (2000) reviewed that root respiration can account for 20-90% of soil respiration, with a mean of 45.8% in most forest sites.…”

Section: Validity Of Annual Neementioning

confidence: 99%

Carbon dioxide exchange in a cool-temperate evergreen coniferous forest over complex topography in Japan during two years with contrasting climates

et al. 2010

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We investigated carbon dioxide (CO(2)) exchange and its environmental response during two years with contrasting climate (2006 and 2007) in a cool-temperate mixed evergreen coniferous forest dominated by Japanese cedar (Cryptomeria japonica) and Japanese cypress (Chamaecyparis obtusa). The study, which was conducted in a mountainous region of central Japan, used the eddy-covariance technique. Our results (crosschecked using the common u (*) approach and van Gorsel's alternative approach) showed that annual gross primary production (GPP) and ecosystem respiration (RE) were at least 6% higher in the dry year than in the wet year, whereas net ecosystem exchange (NEE) was similar in both years. Without soil water stress, strong light stress or seasonality of plant area index during most of the study period, the forest had high metabolic activity. GPP and RE differed greatly between the two years, especially in spring (April-May) and summer (July-September), respectively. The spring GPP difference (>20%) was influenced by different winter air temperatures and snow melt timing, which controlled photosynthetic capacity in spring, and by different spring light intensities. The annual NEE differed depending on the evaluation method used, but the mean 2-year NEE estimated by the u (*) threshold approach [-3.39 +/- 0.11 (SD) MgC ha(-1) year(-1)] appears more reasonable in comparison with results from other forests.

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Biometric-based estimation of net ecosystem production in a mature Japanese cedar (Cryptomeria japonica) plantation beneath a flux tower

Cited by 32 publications

References 31 publications

Biomass carbon accumulation in aging Japanese cedar plantations in Xitou, central Taiwan

Biomass carbon accumulation in aging Japanese cedar plantations in Xitou, central Taiwan

Land Use Alters the Plant-Derived Carbon and Nitrogen Pools in Terraced Rice Paddies in a Mountain Village

Carbon dioxide exchange in a cool-temperate evergreen coniferous forest over complex topography in Japan during two years with contrasting climates

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