globalchange  > 影响、适应和脆弱性
DOI: 10.1016/j.foreco.2015.11.033
Scopus记录号: 2-s2.0-84949294814
论文题名:
Factors contributing to soil nitrogen mineralization and nitrification rates of forest soils in the Japanese archipelago
作者: Urakawa R.; Ohte N.; Shibata H.; Isobe K.; Tateno R.; Oda T.; Hishi T.; Fukushima K.; Inagaki Y.; Hirai K.; Oyanagi N.; Nakata M.; Toda H.; Kenta T.; Kuroiwa M.; Watanabe T.; Fukuzawa K.; Tokuchi N.; Ugawa S.; Enoki T.; Nakanishi A.; Saigusa N.; Yamao Y.; Kotani A.
刊名: Forest Ecology and Management
ISSN:  0378-1127
出版年: 2016
卷: 361
起始页码: 382
结束页码: 396
语种: 英语
英文关键词: Forest soil ; Large spatial scale analysis ; Nitrification rate ; Nitrogen mineralization rate ; Structural equation modeling ; The Japanese archipelago
Scopus关键词: Biogeochemistry ; Biological materials ; Chemical analysis ; Chemical properties ; Ecology ; Ecosystems ; Forestry ; Mineralogy ; Nitrification ; Nitrogen ; Organic compounds ; Sediments ; Forest soils ; Large spatial scale ; Nitrification rates ; Nitrogen mineralization ; Structural equation modeling ; The Japanese archipelago ; Soils ; archipelago ; data set ; database ; ecosystem service ; forest ecosystem ; forest soil ; mineralization ; net primary production ; nitrification ; nitrogen ; nutrient limitation ; soil nitrogen ; soil organic matter ; sustainability ; Japan
英文摘要: Nitrogen (N) is the primary limiting nutrient for forest production. Therefore, understanding how environmental factors affect N transformation rates is essential for the provision of sustainable ecosystem services. Because these factors are interlinked, it is important to consider direct and indirect structural relationships to better understand the factors contributing to N transformations. In this study, we analyzed the structural cause-effect relationships surrounding N transformations by structural equation modeling using a database containing net and gross N transformation rates and related soil chemical properties from 38 sites across the Japanese archipelago. The average net N mineralization and nitrification rates in the Japanese forest soils were 0.62±0.68 and 0.59±0.65mgNkg-1d-1, respectively, and gross N mineralization and nitrification rates were 4.22±3.59 and 0.98±0.68mgNkg-1d-1, respectively. Compared with previous large scale studies, net and gross N transformation rates in Japanese forest soils were considerably diverse despite their relatively small land area and were representative of temperate forest ecosystems. Structural equation modeling analysis showed that net N transformations were directly affected by gross N transformations, which in turn were significantly and directly affected by soil organic matter contents. Soil organic matter was significantly affected by organic layer amount, tree species and soil group. The effect of soil group was the greatest among these factors, suggesting that soil organic matter contents in Japanese forest soils were mainly influenced by soil parent materials. This was especially evident for Andosols, which are derived from volcanic sediments and contain large amounts of soil organic matter leading to high N transformation rates in the Japanese forest soils. Among the factors related to organic layers and mineral soil layers, soil organic matter content and organic layer amount, which represent substrate availability, had significant effects on gross and net N transformation rates. However, by refining the scale of the dataset using soil groups/soil parent materials, the influence of substrate quality and soil chemical properties on N transformations was suggested. From the current dataset, it was indicated that soil parent materials were the most important factor controlling the pattern of N transformations in the soil of Japanese forest ecosystems. This conclusion should be repeatedly refined considering the spatial distribution of factors such as climatic conditions and forest types with additional site datasets obtained from future surveys. © 2015 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65147
Appears in Collections:影响、适应和脆弱性

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作者单位: Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, Japan; Graduate School of Informatics, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto, Japan; Field Science Center for Northern Biosphere, Hokkaido University, N9 W9, Kita-ku, Sapporo, Hokkaido, Japan; Field Science Education and Research Center, Kyoto University, Oiwake-cho, Kitashirakawa, Sakyo-ku, Kyoto, Japan; Graduate School of Agriculture, Kyushu University, 394 Tsubakuro, Sasagurimachi, Kasuya, Fukuoka, Japan; Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minamiohsawa, Hachiohji, Tokyo, Japan; Shikoku Research Center, Forestry and Forest Products Research Institute, 2-915 Asakura-Nishimachi, Kochi, Japan; Forestry and Forest Products Research Institute, 1 Matsunosato, Tsukuba, Ibaraki, Japan; Environmental Science Research Niigata, 8-13 Yoshidahigashisakae-cho, Tsubame, Niigata, Japan; Graduate School of Science and Technology, Niigata University, 2-8050 Ikarashi, Nishi-ku, Niigata, Japan; Institute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo, Japan; Sugadaira Montane Research Center, University of Tsukuba, 1278-294 Sugadairakougen, Ueda, Nagano, Japan; Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo, Japan; Faculty of Agriculture, Kagoshima University, 1-21-24 Korimoto, Kagoshima, Japan; Center for Global Environmental Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, Japan; Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Japan

Recommended Citation:
Urakawa R.,Ohte N.,Shibata H.,et al. Factors contributing to soil nitrogen mineralization and nitrification rates of forest soils in the Japanese archipelago[J]. Forest Ecology and Management,2016-01-01,361
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