Comparison of nutrient concentrations in organic layers between broad-leaved and coniferous forests

Takahashi, Masamichi

doi:10.1080/00380768.1997.10414781

Cited by 10 publications

(9 citation statements)

References 16 publications

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“…In addition, soil fertility and characteristics are affected if dominant species of vegetation and litter composition change due to alterations in forest management or global climatic conditions (Takahashi 1997). Precipitation and litter fall could act as secondary modifiers of a general trend by affecting substrate moisture content and nutrient quality (Weber 1985).…”

Section: Introductionmentioning

confidence: 99%

Short‐term effects of thinning and liming on forest soils of pitch pine and Japanese larch plantations in central Korea

Hwang

Son

2006

Ecological Research

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The influences of thinning (50% of standing density) and liming (Ca+Mg, 2 Mg ha À1 ) on soil chemical properties were investigated for 2 years (2001, 2002) in 40-year-old pitch pine (Pinus rigida Mill.) and 44-year-old Japanese larch (Larix leptolepis Gord.) plantations established on similar soils. In general, soil properties varied significantly among plantations and treatments. For both plantations, thinning significantly increased soil organic C (SOC) concentrations whereas there were no significant changes in soil pH and Ca and Mg concentrations. In addition, thinning increased total soil N and Na concentrations for the pitch pine plantation and available P concentration for the Japanese larch plantation in the second year after the treatment. Liming did not affect soil chemical characteristics for the pitch pine plantation except for Na concentration. However, for the Japanese larch plantation, liming significantly increased soil pH and K, Ca and Mg concentrations and decreased SOC and total soil N concentrations. For both plantations, soil Al concentration did not change after thinning and liming and decreased exponentially with increased pH values. The increases in SOC and total soil N concentrations after thinning were possibly due to increases in decomposition of organic matter and root death. Although differences were not statistically significant, soil available P concentration tended to increase at early stages of liming for both plantations. These results suggested that thinning and liming seemed to regulate soil chemical properties for pitch pine and Japanese larch plantations established on similar soils.

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Section: Introductionmentioning

confidence: 99%

Short‐term effects of thinning and liming on forest soils of pitch pine and Japanese larch plantations in central Korea

Hwang

Son

2006

Ecological Research

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“…They found that nitrogen (N), phosphorus (P), calcium (Ca) and potassium (K) concentrations in broadleaved leaf litter tended to be higher than those in coniferous leaf litter. Takahashi (1997) reported that litter (L) layers in a broadleaved group displayed significantly higher nutrient concentrations, except for sodium (Na) and P, than those in a coniferous group. In general, coniferous leaf litter tends to decompose slowly and accumulate thickly on the soil surface because of poor N and other nutrient contents, high recalcitrant substances such as resin and lignin, and a thick and hard epidermis compared with broadleaved leaf litter (Takeda et al 1984(Takeda et al , 1987.…”

Section: Introductionmentioning

confidence: 99%

Effect of vegetation switch on soil chemical properties

Iwashima

Masunaga

Fujimaki

et al. 2012

Soil Science and Plant Nutrition

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Soil chemical properties were investigated under four types of forest to evaluate the effect of replacement of tree species on soil chemical properties in the north of Japan. Two sites had undergone a vegetation switch around 1960 from broadleaved to coniferous trees (BC) and coniferous to broadleaved trees (CB), while the other two sites had had no vegetation change and carried broadleaved trees (BB) and coniferous trees (CC). Soil samples from the four sites were analyzed for pH (water, H 2 O), electrical conductivity (EC), total carbon (C) and nitrogen (N) content, exchangeable cations [Ex. calcium (Ca), magnesium (Mg), potassium (K) and sodium (Na)], inorganic nitrogen (Inorg-N), nitrogen mineralization potential, total phosphorus (P), and available phosphate. Most of the soil chemical properties in both the upper (0-5 cm) and lower (5-10 cm) layers at the BC site had lower values than those at the BB site. Values of soil chemical properties in the upper and lower soil layers were similar at the BC and CC sites. pH, Inorg-N, EC, Ex.Ca and Ex.Mg in the upper layer at the CB site were significantly higher than those at CC site, whereas all soil properties at the CB site except for Inorg-N were similar to those at the BB site. In the lower layer at the CB site, values of soil chemical properties except for the C/N ratio were almost the same as those at the CC site, but lower than those at the BB site. The upper soil layer at sites where a vegetation switch had occurred was affected by the current tree species, whereas in the lower soil layer, the effects differed between the different vegetation switch patterns. At the CB site, where the vegetation switch was from coniferous to broadleaved trees, the soil chemical properties in the lower layer remained similar to those at the coniferous site (CC) 50 years after the vegetation switch, while changes in soil properties have occurred following the switch from broadleaved to coniferous trees. The change in soil nutrient content by vegetation switch was considerably affected by change in not only litter quality but also composition of earthworm community. In particular, a combination of epigeic and endogeic earthworms exhibited important roles for nutrient dynamics to the deeper soil layer.

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“…The data was collected from published (e.g., Takai et al 1976;Sakuma 1987;Takahashi and Niijima 1988;Takahashi et al 1996;Takahashi 1997) and unpublished data on Japanese temperate and cool-temperate forests (Table 1, dataset A). Because the dataset was compiled from several reports, sampling and analytical methods were varied.…”

Section: Methodsmentioning

confidence: 99%

“…In fact, the carbon content of organic layer usually varies across sublayers such as L, F, and H layers (Green et al 1993;Takahashi 1997). Thus, a single conversion factor may result in inaccurate estimation of carbon mass of the organic layer.…”

Section: Introductionmentioning

confidence: 98%

Direct estimation of carbon mass of organic layer from dry weight

Takahashi

2005

Journal of Forest Research

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The organic layer is an important carbon pool in the forest ecosystem but has sometimes been underestimated or ignored. An equation estimating the carbon mass of the organic layer from its dry weight was developed using a dataset collected from various forests in Japan. The equation (log C ϭ Ϫ0.393 ϩ 1.031 log W, where C is the carbon mass of the organic layer per unit area and W is the dry weight of organic layer per unit area) could be used to estimate the carbon mass of the organic layer with a small error (R 2 ϭ 0.986, n ϭ 67). The factor that converts organic matter to carbon was also examined. The factor of 1.89 Ϯ 0.23 was suitable for the organic layer.

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Comparison of nutrient concentrations in organic layers between broad-leaved and coniferous forests

Cited by 10 publications

References 16 publications

Short‐term effects of thinning and liming on forest soils of pitch pine and Japanese larch plantations in central Korea

Short‐term effects of thinning and liming on forest soils of pitch pine and Japanese larch plantations in central Korea

Effect of vegetation switch on soil chemical properties

Direct estimation of carbon mass of organic layer from dry weight

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