盐湖区生态系统碳密度及其分配格局

doi:10.13866/j.azr.2018.04.29

摘要/Abstract

摘要： 由于对陆地生态系统土壤、植被碳蓄积量了解的缺乏,故在预测气候变化中存在较大分歧,因此很有必要对不同生态系统碳分布情况进行研究。本文以干旱盐湖为研究对象,探究盐湖生态系统碳分布特征。结果表明:土壤有机碳密度分布随土层深度的增加而降低,土壤无机碳呈无规律分布;100 cm土层内有机碳密度介于7.55~15.75 kg·m^-2之间,平均为12.54 kg·m^-2,占植物群落和土壤总有机碳密度的97.84%。黑果枸杞和铃铛刺为盐生群落的优势种,地上平均生物量为261.38 g·m^-2,占总生物量的70.49%,草本植物群落平均生物量仅为109.45 g·m^-2;灌木和草本层地上生物量显著高于凋落物层(84.81±9.22)g·m^-2和(79.76±8.61)g·m^-2。盐生植物地下生物量随土层的增加而降低,0~100 cm土层总地下生物量为77.74 g·m^-2。盐生植物总生物量碳密度为276.48 g·m^-2,其中地上、凋落物和地下生物量分别占62.09%、25.75%和12.16%;地上植被和凋落物碳密度显著高于草本植物,根系生物量碳密度在剖面上分布不均,96.55%集中在0~50 cm土层。盐生植物地上地下以及凋落物平均碳含量43.09%,与经验系数(50%)换算得到碳密度相比实际碳密度高出13.80%,这将对植被碳储量的估算产生较大的偏差。

关键词: 土壤有机碳, 土壤碳密度, 生物碳密度, 生态系统, 分配格局, 盐湖, 干旱区

Abstract: Saline vegetation in arid area is widely distributed,and the plant species are numerous,which plays an important role in the ecosystem carbon balance and regional climate regulation.In this paper,the field investigation in the Dabancheng saline lake area in Xinjiang and the indoor analysis were carried out so as to study the characteristics of carbon density distribution of saline vegetation and soil in this arid area.The results showed that the soil organic carbon density decreased with the increase of soil depth,it varied in a range of 7.55-15.75 kg·m^-2 within 0-100 cm soil layer,and its average value was 12.54 kg·m^-2 and accounted for 97.84% of the total organic carbon density of plant community and soil.Lycium ruthenicum and Halimodendron halodendron are the dominant species in the halophyte communities,their average aboveground biomass was 261.38 g·m^-2 and accounted for 70.49% of the total biomass.The biomass of herbaceous plant community was 109.45 g·m^-2.The aboveground biomasses of shrub and herb layers were significantly higher than the biomasses of their litter layers (84.81±9.22) and (79.76±8.61) g·m^-2.The underground biomass of halophytes decreased with the increase of soil depth,and it in 0-100 cm soil layer was 77.74 g·m^-2.The carbon density of total biomass of halophytes was 276.48 g·m^-2,in which the aboveground,litter and underground biomasses accounted for 62.09%,25.75% and 25.75% of the total respectively.The carbon density of aboveground vegetation and litters was significantly higher than that of herbaceous plants,that of root biomass varies and its 96.55% concentrated in 0-50 cm soil layer.The average carbon content of aboveground,underground and litter of halophytes was 43.09%,which was 13.80% higher than the value estimated with empirical coefficient (50%) and produced high deviation in estimating vegetation carbon reserve.

Key words: soil organic carbon, soil carbon density, biological carbon density, ecosystem, distribution pattern, Saline lake, arid areas

李典鹏, 孙涛, 姚美思, 刘隋赟昊, 王丽萍, 王辉, 贾宏涛. 盐湖区生态系统碳密度及其分配格局[J]. 干旱区研究, 2018, 35(4): 984-991.

LI Dian-peng, SUN Tao, YAO Mei-si, LIU Sui-yunhao, WANG Li-ping, WANG Hui, JIA Hong-tao. Carbon Density and Its Distribution Pattern of Ecosystem in Saline Region[J]. Arid Zone Research, 2018, 35(4): 984-991.

参考文献

〔1〕王苏民,窦鸿身.中国湖泊志〔M〕.北京:科学出版社,1998.〔Wang Sumin,Dou Hongshen.Chinese Lake Records〔M〕.Beijing:Science Press,1998.〕
〔2〕郑绵平.论中国盐湖〔J〕.矿床地质,2001,20(2):181-189.〔Zheng Mianping.On saline lakes of China〔J〕.Mineral Deposits,2001,20(2):181-189.〕
〔3〕马培华.科学开发我国的盐湖资源〔J〕.化学进展,2009,21(11):2 349-2 357.〔Ma Peihua.Sustainable exploitation and comprehensive utilization of salt lake resources in China〔J〕.Progress in Chemistry,2009,21(11):2 349-2 357.〕
〔4〕程芳琴,成怀刚,崔香梅.中国盐湖资源的开发历程及现状〔J〕.无机盐工业,2011,43(7):1-4,12.〔Cheng Fangqin,Cheng Huaigang,Cui Xiangmei.Development history and present status of salt lake resources in China〔J〕.Inorganic Chemicals Industry,2011,43(7):1-4,12.〕
〔5〕李康,王建平.中国锂资源开发利用现状及对策建议〔J〕.资源与产业,2016,18(1):82-86.〔Li Kang,Wang Jianping.China’s lithium resource development actuality and approaches〔J〕.Resources & Industries,2016,18(1):82-86.〕
〔6〕凌智永,李廷伟,王建萍,等.近20年来青藏高原盐湖沉积与环境演化研究综述〔J〕.地球与环境,2014,42(1):25-33.〔Ling Zhiyong,Li Yanwei,Wang Jianping,et al.A review on the saline sedimentation and environment evolution of Tibet Plateau in recent 20 years〔J〕.Earth and Environment,2014,42(1):25-33.〕
〔7〕郑绵平,赵元艺,俊英.第四纪盐湖沉积与古气候〔J〕.第四纪研究,1998(4):297-307.〔Zheng Mianping,Zhao Yuanyi,Jun Ying.Quaternary saline lake deposition and paleo climate〔J〕.Quaternary Sciences,1998 (4):297-307.〕
〔8〕曾方明.中国盐湖沉积年代学研究进展〔J〕.盐湖研究,2016,24(2):37-43.〔Zeng Fangming.Progress on dating deposits from Salt Lake in China〔J〕.Journal of Salt Lake Research,2016,24(2):37-43.〕
〔9〕魏海成,樊启顺,安福元,等.94-9 ka查尔汗盐湖的气候环境演化过程〔J〕.地球学报,2016,37(2):193-203.〔Wei Haicheng,Fan Qishun,An Fuyuan,et al.Chemical elements in core sediments of the Qarhan Salt Lake and palaeo climate evolution during 94-9 ka〔J〕.Acta Geoscientica Sinica,2016,37(2):193-203.〕
〔10〕赵婉雨,杨渐,董海良,等.柴达木盆地达布逊盐湖微生物多样性研究〔J〕.地球与环境,2013,41(4):398-405.〔Zhao Wanyu,Yang Jian,Dong Hailiang,et al.Microbial diversity in the hypersaline Dabuxun Lake in Qaidam Basin,China〔J〕.Earth and Environment,2013,41(4):398-405.〕
〔11〕李璐,郝春博,王丽华,等.巴丹吉林沙漠盐湖微生物多样性〔J〕.微生物学报,2015,55(4):412-424.〔Li Lu,Hao Chunbo,Wang Lihua,et al.Microbial diversity of salt lakes in Badain Jaran desert〔J〕.Acta Microbiologica Sinica,2015,55(4):412-424.〕
〔12〕房传苓,王秀君,王家平,等.新疆博斯腾湖湖周水体碳和盐离子的空间分布〔J〕.干旱区研究,2013,30(2):226-230.〔Fang Chuanling,Wang Xiujun,Wang Jiaping,et al.Spatial distributions of organic carbon and dissolved ions in the Bosten Lake,Xinjiang〔J〕.Arid Zone Research, 2013,30(2):226-230.〕
〔13〕Chmura G L,Anisfeld S C,Cahoon D R,et al.Global carbon sequestration in tidal,saline wetland soils〔J〕.Global Biogeochemistry Cycles,2003,17(4):22.
〔14〕Li Y,Wang Y G,Houghton R A,et al.Hidden carbon sink beneath desert〔J〕.Geophysical Research Letters,2015,42(14):5 880-5 887.
〔15〕Xie J,Li Y,Zhai C,et al.CO₂ absorption by alkaline soils and its implication to the global carbon cycle〔J〕.Environmental Geology,2009,56(5):953-961.
〔16〕Jasoni R L,Smith S D,Arnone J A.Net ecosystem CO₂ exchange in Mojave Desert shrub lands during the eighth year of exposure to elevated CO₂〔J〕.Global Change Biology,2005,11:749-756.
〔17〕Jia X,Zha T S,Wu B,et al.Biophysical controls on net ecosystem CO₂ exchange over a semiarid shrub land in northwest China〔J〕.Biogeosciences,2014,11:4 679-4 693.
〔18〕Liu R,Li Y,Wang Q X.Variations in water and CO₂ fluxes over a saline desert in western China〔J〕.Hydrological Processes,2012,26(4):513-522.
〔19〕唐洪松,马惠兰,苏洋,等.新疆不同土地利用类型的碳排放与碳吸收〔J〕.干旱区研究,2016,33(3):486-492.〔Tang Hongsong,Ma Huilan,Su Yang,et al.Carbon emissions and carbon absorptions of different land use types in Xinjiang〔J〕.Arid Zone Research,2016,33(3):486-492.〕
〔20〕郗金标,张福锁,毛达如,等.新疆盐生植物群落物种多样性及其分布规律的初步研究〔J〕.林业学报.2006,42(10):6-12.〔Xi Jinbiao,Zhang Fusuo,Mao Daru,et al.Species diversity and distribution of halophytic vegetation in Xinjiang〔J〕.Scientia Silvae Sinicae,2006,42(10):6-12.〕
〔21〕杜泉滢,李智,刘书润,等.干旱、半干旱区湖泊周围盐生植物群落的多样性格局及特点〔J〕.生物多样性,2007,15(3):271-281.〔Du Quanyin,Li Zhi,Liu Shurun,et al.Dynamics of species diversity and characteristics of halophytic plant communities around saline lakes in arid and semi-arid regions of Inner Mongolia〔J〕.Biodiversity Science,2007,15(3):271-281.〕
〔22〕王鑫,杨德刚,熊黑钢,等.新疆不同植被类型土壤有机碳特征〔J〕.干旱区研究,2017,34(4):782-788.〔Wang Xin,Yang Degang,Xiong Heigang,et al.Characteristics of soil organic carbon under different vegetation types in Xinjiang〔J〕.Arid Zone Research,2017,34(4):782-788.〕
〔23〕李建东,杨允菲.松嫩平原盐生群落植物的组合结构〔J〕.草业学报,2004,13(1):32-38.〔Li Jiandong,Yang Yunfei.Combinatorial structures of plant species in saline communities in the Songnen Plains of China〔J〕.Acta Pratacultural Science,2004,13(1):32-38.〕
〔24〕王静娅,王明亮,张凤华.干旱区典型盐生植物群落下土壤微生物群落特征〔J〕.生态学报,2016,36(8):2 363-2 372.〔Wang Jingya,Wang Mingliang,Zhang Fenghua.Soil microbial properties under typical halophytic vegetation communities in arid regions〔J〕.Acta Ecologica Sinica,2016,36(8):2 363-2 372.〕
〔25〕郭焱培,杨弦,安尼瓦尔·买买提,等.中国北方温带灌丛生态系统碳、氮、磷储量〔J〕.植物生态学报,2017,41(1):14-21.〔Guo Yanpei,Yang Xuan,Anwar Mohhamot,et al.Storage of carbon,nitrogen and phosphorus in temperate shrub land ecosystems across Northern China〔J〕.Chinese Journal of Plant Ecology,2017,41(1):14-21.〕
〔26〕鲍士旦.土壤农化分析〔M〕.北京:中国农业出版社,2000.〔Bao Shidan.Soil Agricultural Chemistry Analysis〔M〕.Beijing:China Agricultural Science Press,2000.〕
〔27〕Piao S,Fang J,Ciais P,et al.The carbon balance of terrestrial ecosystems in China〔J〕.Nature,2009,458(7 241):1 009-1 013.
〔28〕黎英华,姚云峰,秦富仓,等.不同类型土壤的有机碳密度特征〔J〕.干旱区研究,2016,33(3):455-460.〔Li Yinghua,Yao Yunfeng,Qin Fucang,et al.Distribution of different types of soil organic carbon density〔J〕.Arid Zone Research,2016,33(3):455-460.〕
〔29〕贾佳,白军红,高照琴,等.黄河三角洲潮间带盐沼土壤碳、氮含量和储量〔J〕.湿地科学,2015,13(6):714-721.〔Jia Jia,Bai Hongjun,Gao Zhaoqin,et al.Carbon and nitrogen contents and storages in the soils of intertidal salt marshes in the yellow river delta〔J〕.Wetland Science,2015,13(6):714-721.〕
〔30〕严格,葛振鸣,张利权.崇明东滩湿地不同盐沼植物群落土壤碳储量分布〔J〕.应用生态学报,2014,25(1):85-91.〔Yan Ge,Ge Zhenming,Zhang Liquan.Distribution of soil carbon storage in different saltmarsh plant communities in Chongming Dongtan wetland〔J〕.Chinese Journal of Applied Ecology,2014,25(1):85-91.〕
〔31〕刘钰,李秀珍,闫中正,等.长江口九段沙盐沼湿地芦苇和互花米草生物量及碳储量〔J〕.应用生态学报,2013,24(8):2 129-2 134.〔Liu Yu,Li Xiuzhen,Yan Zhongzheng,et al.Biomass and carbon storage of Phragmites australis and Spartina alterniflora in Jiuduan Shoal Wetland of Yangtze Estuary,East China〔J〕.2013,24(8):2 129-2 134.〕
〔32〕毛志刚,王国祥,刘金娥,等.盐城海滨湿地盐沼植被对土壤碳氮分布特征的影响〔J〕.应用生态学报,2009,20(2):293-297.〔Mao Zhigang,Wang Guoxiang,Liu Jin’e,et al.Influence of salt marsh vegetation on spatial distribution of soil carbon and nitrogen in Yancheng coastal wetland〔J〕.Chinese Journal of Applied Ecology,2009,20(2):293-297.〕
〔33〕贾瑞霞,仝川,王维奇,等.闽江河口盐沼湿地沉积物有机碳含量及储量特征〔J〕.湿地科学,2008,6(4):492-499.〔Jia Ruixia,Tong Chuan,Wang Weiqi,et al.Organic carbon contents and storages in the salt Marsh Sediments in the Min River Estuary〔J〕.Wetland Science,2008,6(4):492-499.〕
〔34〕张蔷,李家湘,徐文婷,等.中国亚热带山地杜鹃灌丛生物量分配及其碳密度估算〔J〕.植物生态学报,2017,41(1):43-52.〔Zhang Qiang,Li Jiaxiang,Xu Wenting,et al.Estimation of biomass allocation and carbon density of Rhododendron simsii shrubland in the subtropical mountainous areas of China〔J〕.Chinese Journal of Plant Ecology,2017,41(1):43-52.〕
〔35〕胡会峰,王志恒,刘国华,等.中国主要灌丛植被碳储量〔J〕.植物生态学报,2006,30(4):539-544.〔Hu Huifeng,Wang Zhiheng,Liu Guohua,et al.Vegetation carbon storage of major shrub lands in China〔J〕.Acta Phytoecologica Sinica,2006,30(4):539-544.〕
〔36〕Woodwell G M,Whittaker R H,Reiners W A,et al.The biota and the world carbon budget〔J〕.Science,1978,199(4 325):141-146.
〔37〕崔光帅,张林,沈维,等.西藏雅鲁藏布江流域中段砂生槐灌丛生物量分配及碳密度〔J〕.植物生态学报,2017,41(1):53-61.〔Cui Guangshuai,Zhang Lin,Shen Wei,et al.Biomass allocation and carbon density of Sophora moorcroftiana shrub lands in the middle reaches of Yarlung Zangbo River,Xizang,China〔J〕.Chinese Journal of Plant Ecology,2017,41(1):53-61.〕
〔38〕杨路存,李长斌,宁祎,等.青海省高寒金露梅灌丛碳密度及其分配格局〔J〕.植物生态学报,2017,41(1):62-70.〔Yang Lucun,Li Changbin,Ning Yi,et al.Carbon density and its spatial distribution in the Potentilla fruticosa dominated alpine shrub in Qinghai,China〔J〕.Chinese Journal of Plant Ecology,2017,41(1):62-70.〕
〔39〕Yang Y H,Fang J Y,Pan Y D,et al.Aboveground biomass in Tibetan grasslands〔J〕.Journal of Arid Environments,2009,73:91-95.
〔40〕白永飞.降水量季节分配对克氏针茅草原群落初级生产力的影响〔J〕.植物生态学报,1999,23(2):155-160.〔Bai Yongfei.Influence of seasonal distribution of precipitation on primary productivity of Stipa krylovii community〔J〕.Acta Phytoecologica Sinica,1999,23(2):155-160.〕
〔41〕李扬,孙洪仁,沈月,等.紫花苜蓿根系生物量垂直分布规律〔J〕.草地学报,2012,20(5):793-799.〔Li Yang,Sun Hong-ren,Shen Yue,et al.The vertical distribution pattern of Alfalfa’s (Medicago sativa L.) root biomass〔J〕.Acta Agrestia Sinica,2012,20(5):793-799.〕
〔42〕张华新,刘正祥,刘秋芳.盐胁迫下树种幼苗生长及其耐盐性〔J〕.生态学报,2009,29(5):2 263-2 271.〔Zhang Huaxin,Liu Zhengxiang,Liu Qiufang.Seedling growth and salt tolerance of tree species under NaCl stress〔J〕.Acta Ecologica Sinica,2009,29(5):2 263-2 271.〕

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