| Biology and Soil |
|
|
|
|
| Soil Respiration of Nitraria tangutorum Nebkhas at Different Evolvement Stages in Lower Reaches of Shiyang River and Its Influencing Factors |
| JIN Hu-jia1, MA Quan-lin1, ZHANG You-jia2, ZENG Xin-de2 |
1.Gansu Key Laboratory of Desertification Combating, State Key Laboratorhy of Desertificaiton and Aeolian Sand Disater Combating, Gansu Desert Control Research Institute, Lanzhou 730070, China;
2.Administration Bureau of Minqin Liangucheng National Nature Reserve of Gansu Province, Minqin 733003, Gansu, China |
|
|
|
|
Abstract Study of soil respiration in different environment and its influencing factors is helpful to understand regional ecological process and global climate change. Soil respiration of Nitraria tangutorum nebkhas at different evolvement stages at lower reaches of Shiyang River, early development stage, stable stage, declension stage and severe declension stage, was studied through observation with LI-8100 automated soil CO2 flux system. Results showed that the maximum values of soil respiration appeared at 12:00 for Nitraria tangutorum nebkhas at all sites in different evolvement stages, and the mean values of soil respiration rate are ranked as: stable stages>early development stages>declension stages>severe declension stages. The diurnal variation of soil respiration at different slope position at different evolvement stages was different, but the average values were in order of windward slopes>leeward slopes>inter-dunes. Modeling of soil respiration and its influencing factors showed that correlation between soil respiration and growth condition of Nitraria tangutorum was extremely significant and the surface soil moisture had greater influence on the soil respiration than deep soil. Quadratic function could better fit the relationship between the soil temperature at 10-cm depth and soil respiration than other models and the correlation was extremely significant.
|
|
Received: 05 May 2011
Published: 20 January 2012
|
|
|
| [1]IGBP.Terrestrials Carbon Wokring Gorup.The terrestrial carbon cycle:Implications for the Kyoto Portocol[J].Science,1998,280:1393-1394.[2]Schlesinger W H,Andrews J A.Soil respiration and the global carbon cycle[J].Biogeochemistry,2000,(48):7-20.[3]苏永红,冯起,朱高峰,等.土壤呼吸与测定方法研究进展[J].中国沙漠,2008,28(1):57-65.[4]Raich J W,Schelesinger W H.The global carbon dioxide flux in soil respiration and its relationship to vegetation and climate[J].Tellu,1992,44B:81-99.[5]Schlesinger W H.Carbon balance in terrestrial detritus[J].Ann Rev Ecol Syst,1977,8:51-81.[6]张丽萍,陈亚宁,李学森,等.准噶尔盆地西北缘梭梭、假木贼、盐穗木群落土壤呼吸特征比较[J].干旱区地理,2009,32(2):188-195.[7]Ellis R C.The seasonal pattern of nitrogen and carbon mineralization in forest and pasture soils in southern Ontario[J].Canadian Journal of Soil Science,1974,54:15-28.[8]黄承才,葛滢,常杰,等.中亚热带东部3种主要木本群落土壤呼吸的研究[J].生态学报,1999,19(3):324-328.[9]李玉强,赵哈林,赵学勇,等.科尔沁沙地夏秋(6—9月)季不同类型沙丘土壤呼吸对气温变化的响应[J].中国沙漠,2008,28(2):249-254.[10]杨晶,黄建辉,詹学明,等.农牧交错区不同植物群落土壤呼吸的日动态观测与方法比较[J].植物生态学报,2004,28(3):318-325.[11]Lloyd J,Taylor J A.On the temperature dependence of soil respiration[J].Functional Ecology,1994,8:315-323.[12]Fang C,Moncrieff J B.The dependence of soil efflux on temperature[J].Soil Biology and Biochemistry,2001,33:155-165.[13]Melling L,Hatano R,Goh K J.Soil CO2 flux from three ecosystems in tropical peatland of Sarawak,Malaysia[J].Tellus,2005,57B:1-11.[14]Jia B,Zhou G,Wang Y,et al.Effects of temperature and soil water content on soil respiration of grazed and ungrazed Leymus chinensis steppes,Inner Mongolia[J].Journal of Arid Environments,2006,67:60-76.[15]Luo Y.Wan S,Hui D,et al.Acclimatization of soil respiration to warming in a tall grass prairie[J].Nature,2001,413:622-625.[16]李洪建.不同生态系统土壤呼吸与环境因子的关系研究[D].山西大学,2008.[17]鲁洋,黄从德,李海涛,等.不同采伐强度柳杉人工林的夏季土壤呼吸日变化[J].浙江林业科技,2009,29(2):19-23.[18]黄湘,陈亚宁,李卫红,等.塔里木河中下游胡杨群落土壤碳通量日变化研究[J].自然科学进展,2006,16(11):1405-1410.[19]张有利,郑永文,于立红,等.大庆市碱草草原土壤呼吸的日变化研究[J].黑龙江八一农垦大学学报,2007,19(6):93- 95.[20]肖胜生,叶功富,郭瑞红,等.木麻黄人工林生态系统土壤呼吸的日变化[J].海峡科学,2008,(10):39-41.[21]杨建军,吕光辉,张燕.艾比湖流域土壤呼吸日变化及水热因子影响[J].新疆农业科学,2009,46(2):223-231.[22]孙祥,于卓.白刺根系的研究[J].中国沙漠,1992,12(4):51-54.[23]王海涛,张银太,何兴东,等.干旱区油蒿生物量凋落分解与土壤呼吸[J].中国沙漠,2007,27(3):455-459.[24]冯朝阳,吕世海,高吉喜,等.华北山地不同植被类型土壤呼吸特征研究[J].北京林业大学学报,2008,30(2):21-26.[25]套格图,赵吉,孙启忠.多年生人工草地对沙质土壤呼吸作用的影响[J].中国沙漠,2008,28(2):301-305.[26]张芳,王涛,薛娴,等.影响草地土壤呼吸的主要自然因子研究现状[J].中国沙漠,2009,29(5):872-877.[27]曾永年,冯兆东.黄河源区土地沙漠化及其对土壤碳库的影响研究[J].中国沙漠,2008,28(2):208-212. |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
2012, Vol. 32 
