Changes in Soil Carbon Pools Induced by Substitution of Plantation for Native Forest

XU QIUFANG; XU JIANMING

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Changes in Soil Carbon Pools Induced by Substitution of Plantation for Native Forest

机译：人工林替代天然林引起的土壤碳库变化

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Changes in soil carbon pools under Chinese fir (Cunninghamia lanceolata) and bamboo (Phyllostachyspubescens) plantations substituted for a native forest ( Quereus acutissima, Cyclobalanopsis glauca, Cas-tanopsis sclerophylla, Platycarya strobilacea, Lithocarpus glaber) were studied on the hills with acid parentrock and soils classified as red soils (Ferrisols) in Huzhou, Zhejiang Province of east China. It was foundthat total soil organic carbon (TSOC), easily oxidisable carbon (EOC) and water-soluble organic carbon(WSOC) under bamboo plantation were increased, but microbial biomass carbon (MBC) was decreased. Onthe contrary, Chinese fir induced declines of all fractions of C including TSOC, EOC, WSOC and MBC.The percentages of the active fractions of soil C (EOC and WSOC) were increased in the plantations ascompared to the native broad-leaved forest, but proportions of soil organic C as MBC were decreased. Itcould be concluded that bamboo plantation had a great ability of not only fixing C but also accelerating soilC pool cycle, improving nutrient and microorganism activity; therefore, it is a good ecosystem and could berecommended for wide development. Chinese fir would shrink the soil C pool and deteriorate soil biologicalfertility, so it did not benefit CO2 fixing and land sustainable utilization.

机译：在山丘上研究了杉木（Cunninghamia lanceolata）和竹（Phyllostachyspubescens）人工林替代原生林（Quereus acutissima，Cyclobalanopsis glauca，Cas-tanopsis sclerophylla，Platycarya strobilacea，Lithocarpus glaber）的土壤碳库的变化。中国东部的湖州，被归类为红壤（费里索尔）的土壤。结果表明，竹林土壤总有机碳（TSOC），易氧化碳（EOC）和水溶性有机碳（WSOC）均增加，但微生物生物量碳（MBC）减少。相反，杉木引起了包括TSOC，EOC，WSOC和MBC在内的所有C组分的下降。与天然阔叶林相比，人工林中土壤C的有效组分（EOC和WSOC）的百分比增加了，但是降低了土壤有机碳作为MBC的比例。可以得出结论，竹林不仅具有固定碳的能力，而且还可以加速土壤碳库的循环，提高养分和微生物的活性。因此，它是一个良好的生态系统，值得广泛发展。杉木会收缩土壤碳库并降低土壤生物肥力，因此不利于固碳和土地可持续利用。

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来源
《土壤圈（英文版）》 |2003年第3期|271-278|共8页
作者
XU QIUFANG; XU JIANMING;
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作者单位

Department of Resource Science, College of Environment and Resource Science, Zhejiang University, Hua-jiachi Campus, Hangzhou 310029 China;

Department of Resources and Environmental Science, Zhejiang Forestry College, Lin'an 311300 China;

Department of Resource Science, College of Environment and Resource Science, Zhejiang University, Hua-jiachi Campus, Hangzhou 310029 China;

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收录信息中国科学引文数据库(CSCD);中国科技论文与引文数据库(CSTPCD);
原文格式 PDF
正文语种 chi
中图分类土壤学;
关键词
bamboo; broad-leaved forest; Chinese fir; soil carbon;

机译：竹子;阔叶林;杉木;土壤碳;

Changes in Soil Carbon Pools Induced by Substitution of Plantation for Native Forest

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