青藏高原芨芨草型温性草原不同土地利用方式的理论碳增汇潜力比较
Response of Potential Carbon Sequestration Capacity to Different Land Use Patterns in Achnatherum splendens Grassland in Qinghai-Tibetan Plateau
查看参考文献31篇
|
文摘
|
于2009年7~8月对青藏高原芨芨草(Achnatherum splendens)型温性草原主要分布区的4种土地利用类型──原生草地、退化草地、农田耕种和退耕还草区的土壤容重、土壤有机碳含量和植物地上、地下生物量进行对比研究,以探讨土地利用方式对青藏高原草地生态系统碳储垂向分布的影响.结果表明,土地利用方式显著影响着浅层(0~20 cm)土壤容重和地下生物量(P<0.05);农田耕种和退耕还草对土壤有机碳含量的影响程度可深达60 cm;农田耕种区和退耕还草区的地上生物量极显著高于原生草地区和退化草地区(P<0.01);原生草地、退化草地、农田耕种区和退耕还草区的系统(植物+0~40 cm土壤)碳储分别为122.84、108.82、130.68和108.99 t· hm~(-2);以原生草地区地下系统碳储为参照,退化草地、农田耕种区和退耕还草区的增汇潜力分别为14.05、-6.38和14.88 t·hm~(-2),但增汇的时间效益和经济效益区别较大。 |
|
其他语种文摘
|
To understand the influence on grassland ecosystem carbon stock vertical prof iles and carbon services function for land use changes,we surveyed the soil bulk density,soil organic carbon,aboveground and belowground biomass under 4 different land use patterns (native grassland,degraded grassland,cultivation and plantation)in main temperate grassland region on the Qinghai-Tibetan Plateau from July to August in 2009.The results showed that soil bulk density and belowground biomass of 020 cm depth was remarkably influenced by land use patterns (P<0.05).Plantation and cultivation had significantly impacted soil organic carbon and been even up to 60 cm deep.Aboveground biomass of cultivation and plantation was much more enhanced than that of native and degraded grassland (P<0.01).The ecosystem carbon stock (plant+0-40 cm soil)of native,degraded grassland,cultivation and plantation was 122.84,108.82,130.68 and 108.99 t · hm~(-2),respectively.The carbon sequestration potential was defined as the difference with belowground carbon stock of native grassland and was 14.05,- 6.38 and 14.88 t · hm~(-2).However,there would be much more different in time-consuming and economy-investing. |
|
来源
|
西北植物学报
,2011,31(9):1866-1872 【核心库】
|
|
关键词
|
土壤容重
;
土壤有机碳
;
地上、地下生物量
;
系统碳储
|
|
地址
|
中国科学院西北高原生物研究所, 西宁, 810008
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1000-4025 |
|
学科
|
普通生物学 |
|
基金
|
中国科学院知识创新工程重要方向项目
;
国家自然科学基金项目
|
|
文献收藏号
|
CSCD:4327231
|
参考文献 共
31
共2页
|
|
1.
IPCC.
Climate Change 2007-The Physical Science Basis:Working Group I Contribution to the Fourth Assessment Report of the IPCC,2007
|
被引
8
次
|
|
|
|
|
2.
丁仲礼. 2050年大气CO2浓度控制:各国排放权计算.
中国科学:D辑(in Chinese),2009,39(8):1009-1027
|
被引
76
次
|
|
|
|
|
3.
方精云. CO_2失汇与北半球中高纬度陆地生态系统的碳汇.
植物生态学报(in Chinese),2001,25(5):594-602
|
被引
103
次
|
|
|
|
|
4.
POST W M. Soil carbon sequestration and land use change:processes and potential.
Global Change Biology,2000,6(3):317-327
|
被引
352
次
|
|
|
|
|
5.
Guo L B. Soil carbon stocks and land use change a meta analysis.
Glohal Change Biology,2002,8:345-360
|
被引
266
次
|
|
|
|
|
6.
钟学斌. 土地整理过程中碳量损失与生态补偿优化设计.
生态学杂志(in Chinese),2006,25(3):303-308
|
被引
16
次
|
|
|
|
|
7.
赵世伟. 子午岭林区生态系统转换对土壤有机碳特征的影响.
西北植物学报(in Chinese),2006,26(5):1030-1035
|
被引
12
次
|
|
|
|
|
8.
Lai R. Soil carbon sequestration to mitigate climate change.
Geoderma,2004,123(1/2):1-22
|
被引
6
次
|
|
|
|
|
9.
BOLLIGER J. Effects of land-use change on carbon stocks in Switzerland.
Ecosystems,2008,11(6):895-907
|
被引
3
次
|
|
|
|
|
10.
LAL R. Soil carbon sequestration impacts on global climate change and food security.
Science,2004,304(5 677):1623
|
被引
888
次
|
|
|
|
|
11.
王根绪. 青藏高原草地土壤有机碳库及其全球意义.
冰川冻土(in Chinese),2002,24(6):693-700
|
被引
122
次
|
|
|
|
|
12.
吴雅琼. 青藏高原土壤有机碳密度垂直分布研究.
环境科学学报(in Chinese),2008,28(2):362-367
|
被引
43
次
|
|
|
|
|
13.
陈泮勤.
中国陆地生态系统碳收支与增汇对策,2008
|
被引
19
次
|
|
|
|
|
14.
SOUSSANA J F. Carbon cycling and sequestration opportunities in temperate grasslands.
Soil Use and Management,2004,20(2):219-230
|
被引
25
次
|
|
|
|
|
15.
曹广民. 青藏高原高寒矮嵩草草甸碳增汇潜力估测方法.
生态学报(in Chinese),2010,30(24):6591-6597
|
被引
21
次
|
|
|
|
|
16.
Wu R G. Effect of land use on soil degradation in alpine grassland soil,China.
Soil Science Society of America Journal,2002,66:1648-1655
|
被引
19
次
|
|
|
|
|
17.
陶贞. 土地利用变化对高寒草甸土壤有机质更新的影响.
冰川冻土(in Chinese),2007,29(2):217-225
|
被引
6
次
|
|
|
|
|
18.
乔有明. 青海湖北岸土地利用方式对土壤碳氮含量的影响.
草业学报(in Chinese),2009,18(6):105-112
|
被引
40
次
|
|
|
|
|
19.
周国英. 青海湖地区芨芨草群落主要种群分布格局研究.
西北植物学报(in Chinese),2006,26(3):579-585
|
被引
19
次
|
|
|
|
|
20.
Chi D. Analysis to the driving force model and drives factor on the utilized changes of cultivated land in Qinghai Lake area.
Agricultural Sciense & Technology,2009,10(6):150-154
|
被引
1
次
|
|
|
|
|
了解气象卫星更多信息，请访问