中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 常绿阔叶林与杉木林的土壤碳矿化潜力及其对土壤活性有机碳的影响 生态学杂志 2007,26 (12) 1918-1923
Position: Home > Articles > Soil carbon mineralization potential and its effect on soil active organic carbon in evergreen broadleaved forest and Chinese fir plantation Chinese Journal of Ecology 2007,26 (12) 1918-1923

常绿阔叶林与杉木林的土壤碳矿化潜力及其对土壤活性有机碳的影响

作  者：
王清奎;汪思龙;于小军;张剑;刘燕新
单  位：
湖南会同森林生态系统国家野外科学观测研究站
关键词：
碳矿化;微生物碳;可溶性有机碳
摘  要：
采用室内土壤培养法,比较分析了湖南省会同地区常绿阔叶林、杉木纯林土壤有机碳的矿化速率和累计矿化量,分析了有机碳矿化量与土壤活性有机碳初始含量的关系。结果表明:常绿阔叶林土壤有机碳矿化速率和累计矿化量均显著高于杉木纯林。在培养的第21天,在培养温度为9℃和28℃条件下,常绿阔叶林0～10和10～20cm土层的土壤有机碳累计矿化量为杉木纯林的1.7～2.7倍。常绿阔叶林土壤有机碳矿化释放的CO2-C分配比例高于杉木纯林。林地土壤有机碳矿化量受土壤微生物碳、可溶性有机碳初始含量的影响(P<0.01)。土壤有机碳矿化使土壤微生物碳增加而可溶性有机碳下降,但变化幅度均不大。温度从9℃升高到28℃后,林地土壤有机碳矿化速率提高3.1～4.5倍;2林地有机碳矿化对温度的敏感性无显著差异。
译  名：
Soil carbon mineralization potential and its effect on soil active organic carbon in evergreen broadleaved forest and Chinese fir plantation
作  者：
WANG Qing-kui1,2,WANG Si-long1,2,YU Xiao-jun1,ZHANG Jian1,3,LIU Yan-xin1,3(1Huitong National Research Station of Forest Ecosystem,Huitong 418307,Hunan,China;2Huitong Experimental Station of Forest Ecology,Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang 110016,China;3Graduate University of Chinese Academy of Sciences,Beijing 100039,China)
关键词：
carbon mineralization;microbial biomass carbon;dissolved organic carbon
摘  要：
With incubation test,this paper studied the mineralization rate and cumulative mineralized amount of soil organic carbon(C),and the correlations of the mineralized organic C with the initial content of soil active organic C in evergreen broadleaved forest and Chinese fir(Cunninghamia lanceolata) plantation in Huitong region of Hunan Province.The results showed that the mineralization rate and cumulative mineralized amount of soil organic C were significantly higher in evergreen broadleaved forest than in Chinese fir plantation.At the 21st day of incubation at 9 ℃ and 28 ℃,the cumulative mineralized amount of soil organic C at the soil depths of 0-10 cm and 10-20 cm in evergreen broadleaved forest was 1.7-2.7 times of that in Chinese fir plantation.The proportion of CO2-C released from the mineralization of soil organic C was higher in evergreen broadleaved forest than in Chinese fir plantation.There were significant correlations between the mineralized amount of soil organic C and the initial content of soil dissolved organic C and microbial biomass C(P<0.01).The mineralization of soil C increased soil microbial biomass C while decreased soil dissolved organic C,but the increment or decrement was not too great.When the incubation temperature raised from 9 ℃ to 28 ℃,soil C mineralization rate increased 3.1-4.5 times,and less difference was observed in the responses of the mineralization rate to temperature change between broadleaved forest and Chinese fir plantation.

相似文章

导出引用
计量
文章访问数: 18
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46