黄土高原半干旱区不同封育年限草地生态系统碳密度

doi:10.11733/j.issn.1007-0435.2016.01.004

草地学报 ›› 2016, Vol. 24 ›› Issue (1): 28-34.DOI: 10.11733/j.issn.1007-0435.2016.01.004

黄土高原半干旱区不同封育年限草地生态系统碳密度

高阳^1,2, 马虎³, 程积民^1,4, 安雨⁵, 刘伟⁶, 陈奥¹

1. 西北农林科技大学动物科技学院, 陕西杨凌 712100;
2. 吉林省农业科学院, 吉林长春 130124;
3. 宁夏农村能源工作站, 宁夏银川 750002;
4. 中国科学院水利部水土保持研究所, 陕西杨凌 712100;
5. 中国科学院东北地理与农业生态研究所, 吉林长春 130102;
6. 国家林业局中南林业调查规划设计院, 湖南长沙 410014

收稿日期:2014-10-20 修回日期:2015-05-26 出版日期:2016-02-15 发布日期:2016-04-26
通讯作者: 程积民
作者简介:高阳(1985-),女,河北保定人,博士,助理研究员,E-mail:gaoyang2302@126.com
基金资助:
中国科学院战略性先导科技专项(XDA05050202);农业部现代农业产业技术体系建设专项(CARS-35-40);国家自然科学基金(41401102,41230852)资助

Ecosystem Carbon Density of Grasslands under Different Grazing Exclusion Ages in Semiarid Region of the Loess Plateau

GAO Yang^1,2, MA Hu³, CHENG Ji-min^1,4, AN Yu⁵, LIU Wei⁶, CHEN Ao¹

1. College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi Province 712100, China;
2. Jilin Academy of Agricultural Sciences, Changchun, Jilin Province 130124, China;
3. Ningxia Rural Energy Workstation, Yinchuan, Ningxia Province 150002, China;
4. Institute of Soil and Water Conservation, Chinese Academy of Sciences/Ministry of Water Resources, Yangling, Shaanxi Province 712100, China;
5. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, Jilin Province 130102, China;
6. Central South Forest Inventory and Planning Institute of State Forestry Administration, Changsha, Hunan Province 410014, China

Received:2014-10-20 Revised:2015-05-26 Online:2016-02-15 Published:2016-04-26

摘要/Abstract

摘要：

本研究以云雾山国家级自然保护区典型草原为研究对象,分析了不同封育年限长芒草(Stipa bungeana)草地生态系统碳密度及其库间分配规律。主要结果如下:放牧和封育5年、9年、15年、22年、25年、30年的草地生态系统碳密度变化范围为212.72~350.42MgC·hm^-2,其中,封育30年草地最高,放牧草地最低,且显著低于各封育草地(P<0.05)。草地植被碳密度以封育15年最高,达到15.65MgC·hm^-2,放牧草地最低,仅为7.82MgC·hm^-2。在库间分配上,根系碳密度所占平均比例达到82.56%。草地土壤碳密度在204.90~337.36MgC·hm^-2之间变化,随封育年限的延长持续增加,封育草地土壤碳密度是放牧牧草地的2.33~2.64倍。以上结果表明,封育可显著提高黄土高原半干旱区草地生态系统碳密度,但过长时间的封育阻碍草地的更新和固碳潜力发挥,合理利用才能促进草地生态系统持续健康发展。

关键词: 封育, 生物量, 碳含量, 土壤容重

Abstract:

In this study, grazing grassland and grasslands with different exclusion ages (5, 9, 15, 22, 25 and 30 years) of Stipa bungeana at Yunwu Mountain National Nature Reserve were selected to analyze ecosystem carbon densities and their distribution among discrete pools. Grassland ecosystem carbon densities ranged between 212.72 Mg C·hm^-2 and 350.42 Mg C·hm^-2, the highest in grassland with 30-year exclusion and the lowest in grazing grassland, which was significantly lower than that of exclusion grasslands (P < 0.05). Grassland with 15-year exclusion had the highest vegetation carbon density, 15.65 Mg C·hm^-2, however, grazing grassland had the lowest, 7.82 Mg C·hm^-2. In addition, the average proportion of root carbon density was 82.56%. Soil carbon densities increased with increasing exclusion ages, ranged from 204.90 Mg C·hm^-2 to 337.36 Mg C·hm^-2, and exclusion grasslands were 2.33~2.64 times greater than that of grazing grassland. These results showed that exclusion significantly increased ecosystem carbon density of grassland in semiarid region of the Loess Plateau, however, long-term exclusion would exert negative influences on grassland renewal and carbon sequestration potential, and reasonable utilizations were suggested.

Key words: Exclusion, Biomass, Carbon concentration, Soil bulk density

中图分类号:

S812.5

高阳, 马虎, 程积民, 安雨, 刘伟, 陈奥. 黄土高原半干旱区不同封育年限草地生态系统碳密度[J]. 草地学报, 2016, 24(1): 28-34.

GAO Yang, MA Hu, CHENG Ji-min, AN Yu, LIU Wei, CHEN Ao. Ecosystem Carbon Density of Grasslands under Different Grazing Exclusion Ages in Semiarid Region of the Loess Plateau[J]. Acta Agrestia Sinica, 2016, 24(1): 28-34.

参考文献

[1] Fu X L, Shao M A, Wei X R,et al. Soil organic carbon and total nitrogen as affected by vegetation types in Northern Loess Plateau of China[J]. Geoderma,2010,155(1-2):31-35
[2] 程积民. 黄土高原草地资源与建设[M]. 西安:陕西人民出版社,1993:205
[3] 谢高地,张钇锂,鲁春霞,等. 中国自然草地生态系统服务价值[J]. 自然资源学报,2001,16(1):47-53
[4] 苏大学. 天然草原在防治黄河上中游流域水土流失与土地荒漠化中的作用与地位[J]. 草地学报,2000,8(2):77-78
[5] 程积民,井赵斌,金晶炜,等. 黄土高原半干旱区退化草地恢复与利用过程研究[J]. 中国科学:生命科学,2014,44(3):1-12
[6] Fernandez-Lugo S, Bermejo L A, de Nascimento L, et al. Productivity: key factor affecting grazing exclusion effects on vegetation and soil[J]. Plant Ecology,2013,214(4):641-656
[7] Good M K, Schultz N L, Tighe M, et al. Herbaceous vegetation response to grazing exclusion in patches and inter-patches in semi-arid pasture and woody encroachment[J]. Agriculture Ecosystems & Environment,2013,179:125-132
[8] Smith R S, Shiel R S, Bardgett R D, et al. Soil microbial community, fertility, vegetation and diversity as targets in the restoration management of a meadow grassland[J]. Journal of Applied Ecology,2003,40(1):51-64
[9] Leifeld J, Zimmermann M, Fuhrer J, et al. Storage and turnover of carbon in grassland soils along an elevation gradient in the Swiss Alps[J]. Global Change Biology,2009,15(3):668-679
[10] Li Y Q, Zhao X Y, Chen Y P, et al. Effects of grazing exclusion on carbon sequestration and the associated vegetation and soil characteristics at a semi-arid desertified sandy site in Inner Mongolia, northern China[J]. Canadian Journal of Soil Science,2012,92(6):807-819
[11] 赵新宇,李红红,程积民,等. 云雾山国家级自然保护区典型草原生态系统价值评估[J]. 草地学报,2014,22(2):217-223
[12] Courtois D R, Perryman B L, Hussein H S. Vegetation change after 65 years of grazing and grazing exclusion[J]. Journal of Range Management,2004,57(6):574-582
[13] Gallego L, Distel R A, Camina R, et al. Soil phytoliths as evidence for species replacement in grazed rangelands of central Argentina[J]. Ecography,2004,27(6):725-732
[14] Chen Y P, Li Y Q, Zhao X Y, et al. Effects of grazing exclusion on soil properties and on ecosystem carbon and nitrogen storage in a sandy rangeland of Inner Mongolia, Northern China[J]. Environmental Management,2012,50(4):622-632
[15] 程杰,高亚军. 云雾山封育草地土壤养分变化特征[J]. 草地学报,2007,15(3):273-277
[16] Noymeir I. Compensating growth of grazed plants and its relevance to the use of rangelands[J]. Ecological Applications,1993,3(1):32-34
[17] Wu G L, Du G Z, Liu Z H, et al. Effect of fencing and grazing on a Kobresia-dominated meadow in the Qinghai-Tibetan Plateau[J]. Plant and Soil,2009,319(1-2):115-126
[18] 程积民,万惠娥,胡相明,等. 半干旱区封禁草地凋落物的积累与分解[J]. 生态学报,2006,26(4):1207-1212
[19] Niu D, Hall S J, Fu H, et al. Grazing exclusion alters ecosystem carbon pools in Alxa desert steppe[J]. New Zealand Journal of Agricultural Research,2011,54(3):127-142
[20] 石锋,李玉娥,高清竹,等. 管理措施对我国草地土壤有机碳的影响[J]. 草业科学,2009,26(3):9-15
[21] Sousa F P, Ferreira T O, Mendonca E S, et al. Carbon and nitrogen in degraded Brazilian semi-arid soils undergoing desertification[J]. Agriculture Ecosystems & Environment,2012,148:11-21
[22] Yates C J, Norton D A, Hobbs R J. Grazing effects on plant cover, soil and microclimate in fragmented woodlands in south-western Australia: implications for restoration[J]. Austral Ecology,2000,25(1):36-47
[23] Fierer N, Schimel J P, Holden P A. Variations in microbial community composition through two soil depth profiles[J]. Soil Biology & Biochemistry,2003,35(1):167-176
[24] Carrera A L, Mazzarino M J, Bertiller M B, et al. Plant impacts on nitrogen and carbon cycling in the Monte Phytogeographical Province, Argentina[J]. Journal of Arid Environments,2009,73(2):192-201
[25] Olson J S, Watts J A, Allison L J. Carbon in live vegetation of major world ecosystems[R]. Oak Ridge: Oak Ridge National Laboratory,1983:15-25
[26] Fan J W, Zhong H P, Harris W, et al. Carbon storage in the grasslands of China based on field measurements of above- and below-ground biomass[J]. Climatic Change,2008,86(3-4): 375-396
[27] Atjay G L, Ketner P, Duvigneaud P. Terrestrial primary production and phytomass[M]//Bolin B, Degens E T, Kempe S, Ketner P, eds. The global carbon cycle. Chichester: John Wiley & Sons,1979:129-181
[28] Lal R. Soil management and restoration for C sequestration to mitigate the accelerated greenhouse effect[J]. Progress in Environmental Science,1999,1(4):307-326
[29] 方精云,杨元合,马文红,等. 中国草地生态系统碳库及其变化[J]. 中国科学:生命科学,2010,40(7):566-576

黄土高原半干旱区不同封育年限草地生态系统碳密度

Ecosystem Carbon Density of Grasslands under Different Grazing Exclusion Ages in Semiarid Region of the Loess Plateau

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	佘延娣, 杨晓渊, 马丽, 张中华, 王党军, 黄小涛, 马真, 姚步青, 周华坤. 退化高寒草甸植物群落和土壤特征及其相互关系研究[J]. 草地学报, 2021, 29(S1): 62-71.
[2]	姚喜喜, 才华, 李长慧. 封育和放牧对高寒草甸植被群落特征和土壤特性的影响[J]. 草地学报, 2021, 29(S1): 128-136.
[3]	张中华, 马丽, 周秉荣, 宋明华, 徐文华, 邓艳芳, 王芳, 佘延娣, 张骞, 姚步青, 马真, 周华坤. 高寒草甸优势种功能多样性对增温和模拟放牧的响应[J]. 草地学报, 2021, 29(S1): 225-232.
[4]	麻莹, 张洪嘉, 库都斯·阿布都沙拉木, 耿淑娟, 薛傲然, 赵翰韦, 菅柏涵. 盐碱胁迫对盐地碱蓬生长、有机酸等溶质积累及其生理功能的影响[J]. 草地学报, 2021, 29(9): 1934-1940.
[5]	黄家兴, 吴静, 李纯斌, 秦格霞, 钱娟冰, 李怀海. 基于Sentinel-2和Landsat 8数据的天祝县草地地上生物量遥感反演[J]. 草地学报, 2021, 29(9): 2023-2030.
[6]	高宏元, 侯蒙京, 葛静, 包旭莹, 李元春, 刘洁, 冯琦胜, 梁天刚, 贺金生, 钱大文. 基于随机森林的高寒草地地上生物量高光谱估算[J]. 草地学报, 2021, 29(8): 1757-1768.
[7]	段丽辉, 刘晓丽, 韩冰, 位晓婷, 才仁措, 邵新庆. 乡土物种补播对青藏高原高寒草甸群落稳定性的影响[J]. 草地学报, 2021, 29(8): 1793-1800.
[8]	孙宇, 张峰, 郑佳华, 赵天启, 赵萌莉, 张彬. 刈割留茬高度对大针茅草原物种多样性及地上生物量的影响[J]. 草地学报, 2021, 29(8): 1859-1864.
[9]	沃野, 黄佳媛, 杨宁, 卢轩, 林志玲, 赵力兴, 李天琦, 高凯. 现蕾期磷添加对菊芋块茎产量及物质分配规律的影响[J]. 草地学报, 2021, 29(7): 1594-1598.
[10]	郭超凡, 陈泽威, 张志高. 基于最优模型选择的牧草地上生物量遥感估算研究[J]. 草地学报, 2021, 29(5): 946-955.
[11]	丁成翔, 刘禹. 光伏园区建设对青藏高原高寒荒漠草地土壤原核微生物群落的影响[J]. 草地学报, 2021, 29(5): 1061-1069.
[12]	郭艳红, 蒲小剑, 蒲小朋, 杜文华. 青藏高寒牧区天然草地地上生物量和营养品质的变化规律[J]. 草地学报, 2021, 29(4): 734-742.
[13]	杜崇宣, 刘云根, 王妍, 包宁颖, 陈天. 砷污染对香蒲生长及根系分泌正构烷烃的影响[J]. 草地学报, 2021, 29(2): 349-355.
[14]	张力天, 刘炜, 刘德梅, 董瑞珍, 王晓丽, 张敏, 仁增曲扎, 边巴普尺, 杨时海, 马玉寿. 青藏高原白草生殖生长期植株器官生物量分配特征[J]. 草地学报, 2021, 29(12): 2694-2702.
[15]	岳丽楠, 师尚礼, 祁娟, 杨培志, 刘刚, 刘文辉, 张英俊, 荆晶莹. 免耕补播对北方退化草地生产力及营养品质的影响[J]. 草地学报, 2021, 29(11): 2583-2590.