学术
土地利用变化对亚热带山地红壤团聚体有机碳的影响
毛艳玲[1,2] 杨玉盛[4] 邹双全[3] 陈光水[1] 王国强[2]
[1]福建师范大学地理科学学院,福建福州350007 [2]福建农林大学资源与环境学院,福建福州350002 [3]福建农林大学科研处,福建福州350002 [4]不详,福建福州350002
摘 要:
研究土地利用变化对土壤团聚体有机碳的影响。对福建省建瓯市山地红壤的农业利用（坡耕地、茶园、桔园）、林业利用（杉木、木荷、封育）不同土层（0~10 cm、10~20 cm）土壤团聚体有机碳含量与有机碳贮量进行研究。结果表明：不同土地利用方式土壤团聚体呈现粒径越小,有机碳含量越高的规律,其中木荷有机碳含量最高,茶园最小。林地随着粒径增加,土壤团聚体碳贮量呈增加的趋势,〉2 mm团聚体有机碳贮量最高。土壤总有机碳增加主要受到大团聚体有机碳增加的影响。亚热带山地红壤内林地开垦为农业用地导致土壤及其团聚体中有机碳大幅度下降。[著者文摘]
文章出处:
《山地学报》-2007年25卷6期 -706-713页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1008-2786-（2007）6-706-08
Effects of Land Use on Soil Organic Carbon in Aggregates of Hilly Red Soil in Subtropical China
MAO Yanling;YANG Yusheng;ZOU Shuangquan;CHEN Guangshui1;WANG Guoqiang2（1.College of Geography Science;Fujian Normal University;Fuzhou;Fujian 350007;China;2.College of Resource and Environment;Fujian Agriculture and Forestry University;Fuzhou;Fujian 350002;China;3.Scientific Research Section;Fujian Agriculture and Forestry University;Fuzhou;Fujian 350002;China）
Abstract:
In order to assess the impacts of land use change on soil organic carbon（SOC）,the contents of SOC of surface soil samples（0～10 cm,10～20 cm）were investigated in Jianou city,Fujian province,China.Results show that the contents of SOC in different size groups increased with decreasing sizes of dry-sieved aggregates,which in Schima superba woodland organic carbon was the highest,and in Tea plantation was the lowest.The storages of SOC in different sized aggregates in the woodlands increased with increasing of aggregate sizes.The total content of SOC was mainly affected by the carbon of macroaggregate.The conversion of woodland into agricultural land reduced the content of SOC of soil and soil aggregates.[著者文摘]
Key words:
land use change;subtropics;red soil;soil aggregates;soil organic carbon
基金资助:
国家自然科学基金项目（30571488）,福建省自然科学基金计划资助项目（基金项目编号：D0710003）资助省属高校项目（2006F5018）.
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