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Dynamic changes of soil organic carbon under different land use type in Sanjiang Plain
https://chikyu.repo.nii.ac.jp/records/2687
https://chikyu.repo.nii.ac.jp/records/26870be0f551-126d-4c51-80be-0995fa8ecafb
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
Dynamic changes of soil organic carbon under different land use type in Sanjiang Plain (6.2 MB)
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| Item type | 図書の一部 / Book(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-11-20 | |||||
| タイトル | ||||||
| タイトル | Dynamic changes of soil organic carbon under different land use type in Sanjiang Plain | |||||
| タイトル | ||||||
| タイトル | Dynamic changes of soil organic carbon under different land use type in Sanjiang Plain | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_2f33 | |||||
| 資源タイプ | book | |||||
| 著者 |
CHI, G.
× CHI, G.× WANG, J.× LU, C.× CHEN, X.× SHI, Y.× ZHOU, L.× CHI, G.× WANG, J.× LU, C.× CHEN, X.× SHI, Y.× ZHOU, L. |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The Sanjiang Plain in the northeast part of Heilongjiang Province is one of the largest freshwater marshes in China, which has been experienced intensive cultivation over past 50years. To understand the dynamic changes of soil organic carbon (SOC) after different durations of cultivation, soil samples down to a depth of 120 cm were collected in layers from the lowland and upland fields having been reclaimed for 5-25 years, with adjacent undisturbed wetland and forestland as the control. The study of the vertical distribution of SOC and its relationship with soil pH showed that the SOC content in undisturbed wetland and cultivated lowland rice fields had a marked decrease企om0-10 cm to 40-60 cm and a less change downward, and a similar variation trend was observed in undisturbed forestland and cultivated soybean fields, only with the difference that the SOC content in 0-10cm layer was much higher in forestland than in wetland, and lower in soybean fields than in rice fields. For undisturbed wetland, its SOC content in surface layer was decreased by 49.3% and 14.3% after claimed for 10 and 25 years, and for undisturbed forestland, 81.9% and 68.3% of its SOC in surface layer were lost after reclaimed for 5 years and 18 years, respectively. The soil pH in surface layer was decreased in the sequences of undisturbed wetland > lowland rice field reclaimed for 25 years > lowland rice field reclaimed for 10 years, and soybean field reclaimed for 5 years > soybean field reclaimed for 18 years > undisturbed forestland. All of these suggested that reclamation made a great loss of SOC in surface layer both in wetland and forestland, and the SOC loss was much greater in forestland than in wetland. The variation of surface soil pH under reclamation could be one of the factors inducing the SOC loss, and a longer period of reclamation combining with rational management could be favorable to the stabilization of SOC. | |||||
| 図書名 | ||||||
| 収録物名 | Report on Amur-Okhotsk Project No.4 | |||||
| 出版者 | ||||||
| 出版者 | Amur-Okhotsk Project | |||||
| 開始ページ | ||||||
| 開始ページ | 95 | |||||
| 終了ページ | ||||||
| 終了ページ | 100 | |||||
| 出版年月日 | ||||||
| 日付 | 2007-02 | |||||
| 日付タイプ | Issued | |||||
| ISBN | ||||||
| 関連タイプ | isPartOf | |||||
| 識別子タイプ | ISBN | |||||
| 関連識別子 | 4-902325-23-2 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://www.chikyu.ac.jp/AMORE/ | |||||
| 関連名称 | アムール・オホーツクプロジェクト | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://www.chikyu.ac.jp/ | |||||
| 関連名称 | 総合地球環境学研究所 | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application/pdf | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
