不同封育年限高寒草甸植被/土壤碳密度及净生态系统CO2交换量的比较

doi:10.7522/j.issn.1000-0240.2013.0096

冰川冻土 ›› 2013, Vol. 35 ›› Issue (4): 848-856.doi: 10.7522/j.issn.1000-0240.2013.0096

不同封育年限高寒草甸植被/土壤碳密度及净生态系统CO₂交换量的比较

刘晓琴^1,2, 吴启华^1,2, 李红琴^1,3, 毛绍娟^1,2, 李英年^1,3

1. 中国科学院西北高原生物研究所, 青海西宁 810001;
2. 中国科学院大学, 北京 100049;
3. 中国科学院西北高原生物研究所高原生物适应与进化重点实验室, 青海西宁 810001

收稿日期:2012-12-12 修回日期:2013-03-10 出版日期:2013-08-25 发布日期:2013-09-11
作者简介:刘晓琴(1987-),女,内蒙古呼和浩特人,现为硕士研究生,现主要从事全球变化生态学研究.E-mail:liuxiaoqin210@mails.ucas.ac.cn
基金资助:
国家自然科学基金项目(31270523;31070437);中国科学院战略性先导科技专项"应对气候变化的碳收支认证及相关问题"(XDA05050601;XDA05050404)资助

A Comparison of the Vegetation/Soil Carbon Density and Net Ecosystem CO₂ Exchange of Alpine Meadow with Different Enclosure Durations

LIU Xiao-qin^1,2, WU Qi-hua^1,2, LI Hong-qin^1,3, MAO Shao-juan^1,2, LI Ying-nian^1,3

1. Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining Qinghai 810001, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China;
3. Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining Qinghai 810001, China

Received:2012-12-12 Revised:2013-03-10 Online:2013-08-25 Published:2013-09-11
Contact: 李英年,E-mail:ynli@nwipb.ac.cn E-mail:ynli@nwipb.ac.cn

摘要/Abstract

摘要： 封育是推广范围最广的草地恢复措施之一. 为研究不同封育年限高寒草甸植被、土壤碳密度变化, 对1 a、6 a和16 a不同封育年限样地监测结果进行分析.结果表明: 不同封育年限高寒草甸植被现存碳密度表现出封育16 a>封育1 a>封育6 a, 分别为1 522.57 gC·m^-2、1 323.12 gC·m^-2和1 148.17 gC·m^-2, 但不同封育年限之间植被现存碳密度差异不显著(P>0.05). 土壤碳密度垂直分布明显, 0~5 cm和5~10 cm土层有机碳密度较高, 随土层深度增加土壤有机碳密度明显下降, 土壤容重上升;不同封育年限之间0~40 cm层次土壤碳密度和土壤容重差异性均不显著, 但仍可表现出土壤碳密度封育1 a>封育6 a>封育16 a, 分别为28 636.32 gC·m^-2、26 570.92 gC·m^-2和26 060.71 gC·m^-2;同时, 土壤容重随封育时间延长而下降. 对7月下旬到10月上旬净生态系统CO₂交换率(NEE)监测来看, 封育1 a植被土壤碳吸收速率显著高于封育16 a(P<0.05);而排放率与封育16 a样地接近, 差异不显著(P>0.05).

关键词: 高寒草甸, 不同封育年限, 植被/土壤碳密度, 净生态系统CO₂交换率

Abstract: Exclusion is one of the most promoted measures in grassland restoration. At present, it is necessary to study the vegetation-soil carbon density of alpine meadow with different enclosures. Based on monitoring 1-year, 6-year and 16-year grazing exclusion plots, it is found that: 1) the existing vegetation carbon density of alpine meadow with different enclosure durations is in the order of 16-year grazing exclusion plot (1 522.57 gC·m^-2) > 1-year grazing exclusion plot (1 323.12 gC·m^-2) > 6-year grazing exclusion plot (1 148.17 gC·m^-2), with a density variation statistically insignificant (P>0.05);2) the soil carbon density has a significant vertical distribution, with relatively high organic carbon density at 0~5 cm and 5~10 cm depths, soil organic carbon density greatly reducing downwards and soil bulk density increasing with depth. Moreover, the differences in soil organic contents and in soil bulk density are not statistically significant (P>0.05) between different enclosure ages, but the soil carbon density at 0 40 cm depth has the order of 1-year grazing exclusion plot (28 636.32 gC·m^-2) > 6-year grazing exclusion plot (26 570.92 gC·m^-2)> 16-year grazing exclusion plot (26 060.71 gC·m^-2). The soil bulk density reduces with enclosure age;3) by monitoring the net ecosystem CO₂exchange (NEE) from lately July to early October, it is found that the soil carbon uptake rate of 1-year grazing exclusion plot is significantly higher than that of 16-year grazing exclusion plot (P<0.05), but their release rates are almost the same, with a difference statistically insignificant (P>0.05).

Key words: alpine meadow, different enclosure durations, vegetation/soil carbon density, net ecosystem CO₂ exchange (NEE)

中图分类号:

S153/Q948

刘晓琴, 吴启华, 李红琴, 毛绍娟, 李英年. 不同封育年限高寒草甸植被/土壤碳密度及净生态系统CO₂交换量的比较[J]. 冰川冻土, 2013, 35(4): 848-856.

LIU Xiao-qin, WU Qi-hua, LI Hong-qin, MAO Shao-juan, LI Ying-nian. A Comparison of the Vegetation/Soil Carbon Density and Net Ecosystem CO₂ Exchange of Alpine Meadow with Different Enclosure Durations[J]. JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY, 2013, 35(4): 848-856.

参考文献

[1] Scott N A, Tate K R, Ford-Robertson J, et al. Soil carbon storage in plantation forests and pastures: land-use change implications[J]. Tellus B: Chemical and Physical Meteorology, 1999, 51(2): 326-335.
[2] Zhou Zhiyong, Sun O J, Huang Jianhui, et al. Soil carbon and nitrogen stores and storage potential as affected by land-use in an agro-pastoral ecotone of northern China[J]. Biogeochemistry, 2007, 82(2): 127-138.
[3] Li Yingnian, Xu Shixiao, Zhao Liang, et al. Carbon sequestration potential of vegetation and soil of degenerative alpine meadows in southern Qinghai Province[J]. Journal of Glaciology and Geocryology, 2012, 34(5): 1157-1164. [李英年, 徐世晓, 赵亮, 等. 青南退化高寒草甸植被土壤固碳潜力[J]. 冰川冻土, 2010, 34(5): 1157-1164.]
[4] Yue Guangyang, Zhao Lin, Zhao Yonghua, et al. Research advances of grassland ecosystem CO₂flux on Qinghai-Tibetan Plateau[J]. Journal of Glaciology and Geocryology, 2010, 32(1): 166-174. [岳广阳, 赵林, 赵拥华, 等. 青藏高原草地生态系统碳通量研究进展[J]. 冰川冻土, 2010, 32(1): 166-174.]
[5] Wang Jie, Ye Baisheng, Zhang Shiqiang, et al. Changing features of CO₂fluxes in alpine meadow in the upper reaches of Shule River, Qilianshan[J]. Journal of Glaciology and Geocryology, 2011, 33(3): 646-653. [王杰, 叶柏生, 张世强, 等. 祁连山疏勒河上游高寒草甸CO₂通量变化特征[J]. 冰川冻土, 2011, 33(3): 646-653.]
[6] Sun Honglie. Formation and Evolution of Qinghai-Xizang Pl-ateau [M]. Shanghai: Shanghai Science and Technology Press, 1996: 1-383.
[7] Tang Cuiwen, Zhang Zhongmin, Xiao Duning, et al. Environmental factor characteristics of soil erosion in the upper reaches of Shiyang River in the Qilian Mountains[J]. Journal of Glaciology and Geocryology, 2012, 34(1): 105-113. [汤萃文, 张忠明, 肖笃宁, 等. 祁连山石羊河上游山区土壤侵蚀的环境因子特征分析[J]. 冰川冻土, 2012, 34(1): 105-113.]
[8] Wang Genxu, Cheng Guodong, Shen Yongping. Soil organic carbon pool of grasslands on the Tibetan Plateau and its global implication[J]. Journal of Glaciology and Geocryology, 2002, 24(6): 693-700. [王根绪, 程国栋, 沈永平. 青藏高原草地土壤有机碳库及其全球意义[J]. 冰川冻土, 2002, 24(6): 693-700.]
[9] Zhou Guoying, Chen Guichen, Zhao Yilian, et al. Comparative research on the influence of chemical fertilizer application and enclosure on alpine steppes in the Qinghai Lake area I: Structure and species diversity of the plant community[J]. Acta Prataculturae Sinica, 2004, 13(1): 26-31. [周国英, 陈桂琛, 赵以莲, 等. 施肥和围栏封育对青海湖地区高寒草原影响的比较研究I: 群落结构及其物种多样性[J]. 草业学报, 2004, 13(1): 26-31.]
[10] Yin Zhenhua, Bi Yufen, Li Shiyu. Effects of enclosure on the plant species and coverage of degenerated upland meadow in Yunnan Province [J]. Pratacultural Science, 2008, 25(12): 18-22. [殷振华, 毕玉芬, 李世玉. 封育对云南退化山地草甸植物种类及盖度的影响[J]. 草业科学, 2008, 25(12): 18-22.]
[11] Li Rui, Zhang Kebin, Wang Baitian, et al. The effect on the plant characteristic values and species diversity of different fencing time in the farming-pastoral ecotones in the north of China [J]. Journal of Arid Land Resources and Environment, 2007, 21(7): 106-110. [李瑞, 张克斌, 王百田, 等. 农牧交错带不同封育时间对植物特征值及多样性的影响[J]. 干旱区资源与环境, 2007, 21(7): 106-110.]
[12] Shan Guilian, Xu Zhu, Ning Fa, et al. Influence of seasonal exclosure on plant and soil characteristics in typical steppe[J]. Acta Prataculturae Sinica, 2009, 18(2): 3-10. [单贵莲, 徐柱, 宁发, 等. 围封年限对典型草原植被与土壤特征的影响[J]. 草业学报, 2009, 18(2): 3-10.]
[13] He Nianpeng, Han Xingguo, Yu Guirui. Carbon and nitrogen sequestration rate in long-term fenced grasslands in Inner Mongolia, China[J]. Acta Ecologica Sinica, 2011, 31(15): 4270-4276. [何念鹏, 韩兴国, 于贵瑞. 长期封育对不同类型草地碳贮量及其固持速率的影响[J]. 生态学报, 2011, 31(15): 4270-4276.]
[14] Qiu Liping, Zhang Xingchang, Cheng Jimin. Soil organic matter fractions and soil carbon management index in grasslands with different fencing ages[J]. Plant Nutrition and Fertilizer Science, 2011, 17(5): 1166-1171. [邱莉萍, 张兴昌, 程积民. 不同封育年限草地土壤有机质组分及其碳库管理指数[J]. 植物营养与肥料学报, 2011, 17(5): 1166-1171.]
[15] Cheng Jie, Gao Yajun. Variability of soil nutrient in enclosed grassland of Yunwu Mountain[J]. Acta Agrestia Sinica, 2007, 15(3): 273-277. [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] Cao Chengyou, Shao Jianfei, Jiang Deming, et al. Effects of fence enclosure on soil nutrients and biological activities in highly degraded grasslands[J]. Journal of Northeastern University (Natural Science), 2011, 32(3): 427-430;451. [曹成有, 邵建飞, 蒋德明, 等. 围栏封育对重度退化草地土壤养分和生物活性的影响[J]. 东北大学学报(自然科学版), 2011, 32(3): 427-430;451.]
[17] Berg W A, Bradford J A, Sims P L. Long-term soil nitrogen and vegetation change on sandhill rangeland[J]. Journal of Range Management, 1997, 50(5): 482-486.
[18] Binkley D, Singer F, Kaye M, et al. Influence of elk grazing on soil properties in Rocky Mountain National Park[J]. Forest Ecology and Management, 2003, 185(3): 239-247.
[19] Reeder J D, Schuman G E. Influence of livestock grazing on C sequestration in semi-arid mixed-grass and short-grass rangelands[J]. Environmental Pollution, 2002, 116(3): 457-463.
[20] Reeder J D, Schuman G E, Morgen J A, et al. Response of organic and inorganic carbon and nitrogen to long-term grazing of the short grass steppe[J]. Environmental Management, 2004, 33(4): 485-495.
[21] Li Yingnian, Zhang Fawei, Xue Xiaojuan, et al. The initial response of soil carbon and nitrogen to reciprocal transplantation on the southern slopes of Lenglong Range in Qilian Mountains [J]. Journal of Glaciology and Geocryology, 2010, 32(4): 810-815. [李英年, 张法伟, 薛晓娟, 等. 祁连山南坡不同海拔土壤与植被位移后土壤碳氮的短期变化特征[J]. 冰川冻土, 2010, 32(4): 810-815.]
[22] Li Yingnian, Zhao Liang, Zhao Xinquan, et al. Effects of a 5-years mimic temperature increase to the structure and productivity of kobresia humilismeadow[J]. Acta Agrestia Sinica, 2004, 12(3): 236-239. [李英年, 赵亮, 赵新全, 等. 5年模拟增温后矮嵩草草甸群落结构及生产量的变化[J]. 草地学报, 2004, 12(3): 236-239.]
[23] Dugas W A, Heuer M L, Mayeux H S. Carbon dioxide fluxes over Bermuda grass, native prairie and sorghum[J]. Agricultural and Forest Meteorology, 1999, 93(2): 121-139.
[24] Chang Tianjun, Wang Jianlin, Li Peng, et al. Carbon density and reserve of alpine grassland vegetation in northern Tibet[J]. Ecological Science, 2007, 26(5): 437-442. [常天军, 王建林, 李鹏, 等. 藏北高寒草地植被的碳密度与碳贮量[J]. 生态科学, 2007, 26(5): 437-442.]
[25] Wang Shaoqiang, Zhou Chenghu, Luo Chengwen. Studying carbon storage spatial distribution of terrestrial natural vegetation in China[J]. Progress in Geography, 1999, 18(3): 238-244. [王绍强, 周成虎, 罗承文. 中国陆地自然植被碳量空间分布特征探讨[J]. 地理科学进展, 1999, 18(3): 238-244.]
[26] Li Yingnian. Relation and turnover value analysis of alpine meadow plant underground biomass and meteorological conditions[J]. Chinese Journal of Agrometeorology, 1998, 19(1): 36-39. [李英年. 高寒草甸植物地下生物量与气象条件的关系及周转值分析[J]. 中国农业气象, 1998, 19(1): 36-39.]
[27] Li Yonghong, Yang Chi. Aerial biomass and carrying capacity of steppe vegetation in Inner Mongolia and their relations with climate[J]. Journal of Arid Land Resources and Environment, 1994, 8(4): 43-50. [李永宏, 杨持. 内蒙古主要草原植物群落地上生物量和理论载畜量及其与气候的关系[J]. 干旱区资源与环境, 1994, 8(4): 43-50.]
[28] Zuo Wanqing, Wang Yuhui, Wang Fengyu, et al. Effects of enclosure on the community characteristics of Leymus chinensisin degenerated steppe [J]. Acta Prataculturae Sinica, 2009, 18(3): 12-19. [左万庆, 王玉辉, 王风玉, 等. 围栏封育措施对退化羊草草原植物群落特征影响研究[J]. 草业学报, 2009, 18(3): 12-19.]
[29] Cheng Jimin, Zou Houyuan, Akio H. The rational utilization of grassland and successional course of grassland vegetation in the Loess Plateau[J]. Acta Prataculturae Sinica, 1995, 4(4): 17-22. [程积民, 邹厚远, 本江昭夫. 黄土高原草地合理利用与草地植被演替过程的试验研究[J]. 草业学报, 1995, 4(4): 17-22.]
[30] Cheng Jimin, Zou Houyuan, Akio H. Effects of protective growing cutting and grazing on the vegetation of grassland[J]. Research of Soil and Water Conservation, 1998, 5(1): 36-54. [程积民, 邹厚远, Akio H. 封育刈割放牧对草地植被的影响[J]. 水土保持研究, 1998, 5(1): 36-54.]
[31] Cao Guangmin, Long Ruijun, Zhang Fawei, et al. A method to estimate carbon storage potential in alpine Kobresiameadows on the Qinghai-Tibetan Plateau[J]. Acta Ecologica Sinica, 2010, 30(23): 6591-6597. [曹广民, 龙瑞军, 张法伟, 等. 青藏高原高寒矮嵩草草甸碳增汇潜力估测方法[J]. 生态学报, 2010, 30(23): 6591-6597.]
[32] Huang Daming, Wang Zuwang, Pi Nanlin, et al. A study of energy flow and value flow of a family range in alpine pastoral area[C]//Liu Jike, Wang Zuwang. Alpine Meadow Ecosystem, Fasc. 3. Beijing: Science Press, 1991: 381-402. [黄大明, 王祖望, 皮南林, 等. 高寒草甸地区家庭牧场能量流和价值流的研究[C]//刘季科, 王祖望. 高寒草甸生态系统, 第3集. 北京: 科学出版社, 1991: 381-402.]
[33] Zhao Jingxue, Qi Biao, Duojidunzhu, et al. Effects of short-term enclose on the community characteristics of three types of degraded alpine grasslands in the north Tibet[J]. Pratacultural Science, 2011, 28(1): 59-62. [赵景学, 祁彪, 多吉顿珠, 等. 短期围栏封育对藏北3类退化高寒草地群落特征的影响[J]. 草业科学, 2011, 28(1): 59-62.]

不同封育年限高寒草甸植被/土壤碳密度及净生态系统CO₂交换量的比较

A Comparison of the Vegetation/Soil Carbon Density and Net Ecosystem CO₂ Exchange of Alpine Meadow with Different Enclosure Durations

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[15]	张泉, 刘咏梅, 杨勤科, 王雷, 莫重辉, 李京忠. 祁连山退化高寒草甸土壤水分空间变异特征分析[J]. 冰川冻土, 2014, 36(1): 88-94.