全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

安徽省贵池区农田土壤有机碳分布变化及固碳意义

Keywords: 农田,土壤有机碳,变化

Full-Text   Cite this paper   Add to My Lib

Abstract:

采用布点采样、室内分析测试方法,研究了安徽省贵池区农田土壤有机碳分布变化。结果表明,水稻土土壤有机碳含量及碳密度高于旱作土。贵池区(县域尺度)1984年水田耕层有机碳含量比旱地高出1/3,有机碳密度高出约5%。根据2005年贵池区土壤调查监测数据统计分析得出:水田耕层有机碳含量比旱地高出45.18%,有机碳密度高出23.73%。对比贵池区1984年和2005年两个时段的农田土壤有机碳的含量和碳密度:水稻土有机碳含量年均提高了2.01%,有机碳密度年均提高了3%;旱作土有机碳含量年均提高了1.11%,有机碳密度年均增加了1.3%。农田土壤有机碳含量与土壤性质相关。贵池区农田土壤有机碳与速效磷、碱解氮呈正相关,水稻土粘粒含量与有机碳含量呈正相关,而旱作土则无线性相关。

References

[1]  Mann L K.Changes in soil carbon storage after cultivafion[J].Soil Science,1998,27:221-229.
[2]  潘根兴,李恋卿,龚伟,等.太湖地区几种水稻土的有机碳储存及其分布特性[J].科技通报,2000,16(6):421-432.PAN Gen-xing,LI Lian-qing,GONG Wei,et al.Organic carbon storage in selected paddy soils in Taihu Lake Region and their occurrence[J].Bulletin of Science and Technology,2000,16(6):421-432.
[3]  徐阳春,沈其荣,冉炜.长期免耕与使用有机肥对土壤微生物生物量碳、氮、磷的影响[J].土壤学报,2002,39(1):89-96.XU Yang-chun,SHEN Qi-rong,RAN Wei.Effects of zero-tillage and application of manure on soil microbial biomass C,N and P[J].Acta Pedologica Sinica,2002,39(1):89-96.
[4]  潘根兴.地球表层系统土壤学[M].北京:地质出版社,2000:30-39.PAN Gen-xing.Soil science of the earth\'s surface system[M].Beijing:Geological Press,2000:30-39.
[5]  贵池县农业局.贵池土壤[M].(内部资料),1989:34-242.Guiehi County Bureau of Agriculture.Soil of guichi[M].(Internal data).1989:34-242.
[6]  Song G H.Li L Q,Pan G X,et al.Topsoil organic carbon storage of China and its loss by cultivation[J].Biogeochemistry,2005,74:47-62.
[7]  许信旺,潘根兴,侯鹏程.不同土地利用对表层土壤有机碳密度的影响[J].水土保持学报,2005,19(6):193-196.XU Xin-wang,PAN Gen-xing,Hou Peng-cheng.Impact of different land use on topsoil organic carbon density in anhui pmvince[J].Journal of Soil Water Conservation,2005,19(6):193-196.
[8]  许信旺,潘根兴,曹志红,等.安徽省土壤有机碳空间差异及影响因素[J].地理研究,2007,26(6):1077-1086.XU Xin-wang,PAN Gen-xiag,CAO Zhi-hoag,et al.A study on the influence of soil organic carbon density and its spatial distribution in Anhui Province of China[J].Geographical Research,2007,26(6):1077-1086.
[9]  何大斌,何建州,何顺民.贵池区主要类型土壤养分动态分析及施肥建议[J].安徽农学通报,2002,8(2):55-56.HE Da-bin,HE Jian-zhou,HE Shun-ming.Analysis of main soil nutrients dynamics in Guechi District and its fertilizers application suggests[J].Anhui Agricultural Science Bulletin,2002,8(2):55-56.
[10]  Hassink J.Preservation of plant residues in soils differing in unsaturated protective capacity[J].Soil Science Society of American Journal,1996,60:487-491.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133