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 > 衡阳紫色土丘陵坡地木荷人工林微生物生物量碳(MBC)的时空动态 中国农学通报 2013 (28) 32-35
Position: Home > Articles > Spatio-temporal Dynamics of Microbial Biomass Carbon (MBC) in Schima superba on Sloping-land with Purple Soils in Hengyang Chinese Agricultural Science Bulletin 2013 (28) 32-35

衡阳紫色土丘陵坡地木荷人工林微生物生物量碳(MBC)的时空动态

作  者：
谢振华;朱红球;李红
单  位：
湖南省衡阳市林业局;湖南省衡山县林业局;湖南省衡阳市林业科学研究所
关键词：
微生物生物量碳;土壤有机碳;木荷人工林;紫色土;衡阳
摘  要：
为了探讨土壤微生物量碳(microbial biomass carbon,MBC)在衡阳紫色土丘陵坡地木荷(Schima superba)人工林生态系统碳循环的作用,利用氯仿熏蒸法测定了木荷人工林的MBC,研究其时空动态及其与土壤有机碳(soil organic carbon,SOC)的关系。结果表明:(1)中龄林(middle-aged plantation,MAP)与成熟林(mature plantation,MP)木荷人工1—2月、3—4月、5—6月、7—8月、9—10月、11—12月的MBC存在明显差异(P<0.05),在整个生长过程中出现2个峰值,第1峰出现在3—4月,第2峰出现在9—10月,最低值均出现在11—12月;(2)MAP与MP木荷人工林的MBC存在明显垂直分布规律,在0~20 cm、20~40 cm、40~60 cm各土层中,以0~20 cm土层的MBC最大,20~40 cm土层的MBC次之,40~60 cm土层的MBC最小,且各土层的MBC的差异也均达到显著水平(P<0.05);(3)木荷人工林MBC与SOC呈线性关系:y=21.654x+54.128(R2=0.984,P<0.01);(4)在MAP与MP木荷人工林中,土壤微生物熵(MBC/SOC)随土层深度的增加而升高,说明SOC逐渐由0~20 cm土层向40~60 cm土层转移,土壤处于碳积累状态,土壤呈碳汇功能。
译  名：
Spatio-temporal Dynamics of Microbial Biomass Carbon (MBC) in Schima superba on Sloping-land with Purple Soils in Hengyang
作  者：
Xie Zhenhua;Zhu Hongqiu;Li Hong;Hengyang Forestry Bureau of Hunan Province;Hengshan County Forestry Bureau of Hunan Province;Hengyang Forestry Science Graduate School of Hunan Province;
关键词：
microbial biomass carbon(MBC);;soil organic carbon(SOC);;Schima superb plantations;;purple soils;;Hengyang
摘  要：
In order to explore the role of microbial biomass carbon(MBC) in ecosystem carbon cycle of Schima superb plantations in the sloping-land with purple soils in Hengyang.The time and space distribution dynamics of MBC in middle-aged plantation(MAP) and mature plantation(MP) was studied by using the chloroform fumigation extraction method.And the relationship between MBC and soil organic carbon(SOC) were also analyzed.The results showed that:(1) there was significant difference of MBC in MAP and MP in the month of 1-2,3-4,5-6,7-8,9-10 and 11-12(P<0.05),and there were 2 peaks in the whole year,the first peak value was at the month of 3-4,the second peak value was at the month of 9-10,MBC reached the minimum value at the month of 11-12;(2) There was also significant difference of MBC in MAP and MP in the soil layers of 0-20 cm,20-40 cm,40-60 cm,and the maximum was in the layer of 0-20 cm,the minimum in the layer of 40-60 cm,which exhibited a vertical distribution pattern;(3) The relationship between MBC and SOC was: y=21.654x + 54.128(R2=0.984,P<0.01);(4) The MBC/SOC increased with increase of soil horizons showed SOC transferred gradually from the layer of 0-20 cm to the layer of 40-60 cm and soil C was in accumulated status,the results showed that the soils of MAP and MP were C pool.

相似文章

导出引用
计量
文章访问数: 8
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