Soil soluble organic carbon and nitrogen pools under mono- and mixed species forest ecosystems in subtropical China
Soil soluble organic carbon and nitrogen pools under mono- and mixed species forest ecosystems in subtropical China
复制标题
中国亚热带单一和混交林生态系统土壤可溶性有机碳和氮库
DOI：
10.1007/s11368-010-0191-9
复制
发表时间：
2010-03
影响因子：
3.6
通讯作者：
Xu, Zhihong H.
中科院分区：
文献类型：
--
作者：
Jiang, Yumei M.;Chen, Chengrong R.;Liu, Yuanqiu Q.;Xu, Zhihong H.
目的
本研究的目的是评估中国亚热带8种单一和混交林生态系统（18年恢复）在土壤总碳和总氮、微生物生物量碳和氮、土壤可溶性有机碳和氮方面的差异。
材料（此处“Mat”可能是“Materials”的缩写，根据提供内容暂不确定是否完整，所以给出可能的翻译方向）
PurposeThe objective of the present study was to assess the differences in soil total C and N, microbial biomass C and N, soil soluble organic C and N among eight mono- and mixed species forest ecosystems (18-year-old restoration) in subtropical China.Materials and methodsSoil samples were taken at the 0–10 and 10–20-cm depths from each of the eight forest ecosystems: Masson pine (CP1); Pitch pine (CP2); mixed Slash pine and Sweetgum (CBMP1); mixed Slash pine and Camphortree (CBMP2); mixed Masson pine, Sweetgum, and Chinese Gugertree (CBMP3); mixed Sweetgum and Chinese Gugertree (BMP); Chinese Gugertree (BP1); and Sweetgum (BP2). Soil soluble organic C and N pools were measured using hot water and KCl extraction methods. Microbial biomass C (MBC) and N (MBN) were measured by fumigation-extraction method. Soil total C and N were determined using an isotope ratio mass spectrometer.Results and discussionConcentrations of soil soluble organic N (SON) extracted by KCl solution (35.1–116.9 and 11.2–78.2 mg kg–1) were greater than those by hot water (20.7–72.8 and 8.4–30.6 mg kg–1) in the 0–10 and 10–20-cm soils, while concentrations of soluble organic C (SOC) extracted by KCl solution were lower than those extracted by hot water in the 0–10 cm. Soil soluble C and N pools extracted by both hot water and KCl solution and the MBC and MBN were greatest under the broadleaf forest ecosystems, followed by the mixed conifer–broadleaf forest ecosystems, and then the conifer forest ecosystems.ConclusionsDifferent restored forest ecosystems had significant impacts on soil SOC and SON, and MBC and MBN. The broadleaf forest ecosystems could be a better choice for the restoration of red soil chemical and biological prosperities than the conifer–broadleaf forest ecosystem and coniferous forest ecosystems. A further study is necessary to sample over seasons in order to understand whether the significant impacts on soil properties are related to the sample time. In addition, soil microbial community composition and microbial activity should be measured in such studies to understand mechanisms involved in the dynamics of soil SOC and SON pools.
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影响因子：
3.6
作者：
Liu, Juxiu;Peng, Shanjiang;Zhang, Deqiang;Xu, Zhihong;Faivre-vuillin, Benjamin;Zhou, Guoyi
通讯作者：
Zhou, Guoyi
影响因子：
9.7
作者：
Weixing Zhu;M. Carreiro
通讯作者：
Weixing Zhu;M. Carreiro
影响因子：
4.2
作者：
A. Ghani;M. Dexter;R. Carran;P. Theobald
通讯作者：
A. Ghani;M. Dexter;R. Carran;P. Theobald
影响因子：
6.9
作者：
B. Scaglia;F. Adani
通讯作者：
B. Scaglia;F. Adani
DOI：
10.2136/sssaj1991.03615995005500040036x
发表时间：
1991-07
影响因子：
2.9
作者：
R. Qualls;B. Haines
通讯作者：
R. Qualls;B. Haines