|本期目录/Table of Contents|

[1]喻皓,介冬梅,姜洪涛*,等.不同增温条件下松嫩草原狗尾草植硅体的形态特征研究[J].南京大学学报(自然科学),2015,51(5):1075-1083.[doi:10.13232/j.cnki.jnju.2015.019]
 Yu Hao,Jie Dongmei,Jiang Hongtao*,et al.The orphological analysis of phytolith in Green Foxtail on Songnen grassland in different warming conditions[J].Journal of Nanjing University(Natural Sciences),2015,51(5):1075-1083.[doi:10.13232/j.cnki.jnju.2015.019]
点击复制

不同增温条件下松嫩草原狗尾草植硅体的形态特征研究()
     

《南京大学学报(自然科学)》[ISSN:0469-5097/CN:32-1169/N]

卷:
51
期数:
2015年第5期
页码:
1075-1083
栏目:
出版日期:
2015-10-01

文章信息/Info

Title:
The orphological analysis of phytolith in Green Foxtail on Songnen grassland in different warming conditions
作者:
喻皓1 介冬梅2姜洪涛1*王海涛3王楠4
(1.南京大学地理与海洋科学学院,南京210046,中国;2.东北师范大学地理科学学院,长春 130024,中国;3.香港中文大学地理与资源管理学系香港999077中国;4.中国科学院地理研究所北京100101,中国)
Author(s):
Yu Hao12Jie Dongmei2Jiang Hongtao1*Wang Haitao3Wang Nan4
(1.School of Geographic and Oceanographic Sciences,Nanjing University,Nanjing,210046,China;2.School of Geographical Science,Northeast Normal University,Changchun,130024,China;3.Department of Geography and Resource Management,The Chinese University of Hong Kong,Hong Kong,999077,China;4.Institute of Geography,Chinese Academy of Sciences,Beijing,100101,China)
关键词:
增温松嫩草原狗尾草植硅体形态特征
Keywords:
warmingSongnen grasslandgreen foxtailphytolithmorphological characteristics
分类号:
-
DOI:
10.13232/j.cnki.jnju.2015.019
文献标志码:
-
摘要:
本文以中国吉林省长岭县为实验基地,运用开顶式气室法(OTC)对松嫩草原狗尾草进行增温种植实验,采用湿式灰化法提取其中的植硅体进行观察统计,以探讨松嫩草原狗尾草中植硅体的形态特征及其随模拟增温的变化规律,得到以下结果与结论:(1)松嫩草原狗尾草中的植硅体可分为哑铃、尖形、帽形、棒形及毛发形5个大类亚类,其中哑铃形植硅体百分比率最高,其次是尖形,其他类型则百分比率较少。(2)帽形、棒形毛发形植硅体的百分比率随着温度的升高而减少,哑铃形尖形植硅体的百分比率随温度升高而增加。(3)亚,随着温度的升高,狗尾草中植硅体形态趋于褶皱。(4)模拟增温促进了狗尾草中哑铃形植硅体的发育。
Abstract:
Using Open-Top Chamber (OTC) method to simulate different warming conditions of raising green foxtail on Songnen grassland. Some well-grown green foxtail were transplanted into three OTCs with different extents of warming. In order to receive more accurate results, a comparative experiment in natural environment was set next to the OTCs. Phytoliths were extracted from green foxtail by wet cinefaction method.The paper analyses the morphology and percentages of different phytoliths to study their respective change rules in accordance with different temperatures. Four conclusions were come into shape:(1) Phytoliths in green foxtail are classified into five main classes, namely, the bilobate, point-shaped, hat-shaped,elongate, hair-shaped and tracheid, and thirteen subclasses. Of all phytolith types,the bilobate takes the highest percentage of 51.33%,followed by the point-shaped of 34%,while other types take rarely.(2) The percentage of hat-shaped,elongate and hair-shaped phytolith reduces along with growing temperature in the simulated greenhouse while that of the bilobate and point-shaped increase.Moreover,hat-shaped and hair-shaped phytoliths respond significantly to warming.Hat-shaped phytolith takes less than 5%,but the percentage of change in the amplitude reaches 3%; the percentage of change in hair-shaped phytolith turns out 2% while it is only 4.67% of the total.Other types have relatively small changes.(3) The morphology of phytolith in green foxtail tends to wrinkle under the warming treatment.When it comes to the bilobate,the split-degree of the end of the bilobate becomes larger because of the artificial simulated temperature gradient. The percentage in the hat-shaped with echinate raised from 50% to 80.12% while hat-shaped with flat reduces from 50% to 19.88%.The morphological changes of elongate phytoliths also reflect the argument above.(4) The warming treatment promotes the growth of bilobate phytolith.The average length of bilobate increases 1.9 um and average width increases 0.59 um under the warming conditions.

参考文献/References:

[1]Prat H.La systematique des Graminees.Annales des Sciences Naturelles,1936,10(18):165—258.
[2]Twiss P C,Suess E,Smith R M.Morphological classification of grass phytoliths.Soil science Society of America,Proceedings,1969,33:109-115.
[3]Sase T,Kondo R.The Study of opal phytoliths in the humus horizon of buried volcanic ash soils in Hokkaido.Research Bulletin of Obihiro UniverSity,1974,8:465-483.
[4]Kondor R,Sase T.Opal phytoliths,their Nature and application.The Quaternary Research,1986,25(1):31-63.
[5]Shahack-Gross R,Shemesh A,Yakir D,et al.Oxygen isotopic composition of opaline phytoliths: Potential for terrestrial climatic reconstruction.Geochimica et Cosmochimica Acta,1996,60:3949-3953.
[6]Barboni D,Bremond L,Bonnefille R.Comparative study of modern phytolith assemblages from inter-tropical Africa.Palaeogeography,Palaeoclimatology,Palaeoecology,2007,246:454-470.
[7]王永吉,吕厚远.植物硅酸体研究及应用.北京:海洋出版社,1993,1-267.
[8]陈昌斌,冯志坚,陈勇等.禾本科植物叶片中硅酸体的基本类型与分类系统的研究.华东师范大学学报(自然科学版),1996,01:101~110.
[9]吕厚远,贾继伟,王伟铭等.”植硅体”含义和禾本科植硅体的分类.微体古生物学报,2002,19(4):389-396.
[10]Wang W M,Liu J L,Zhou X D.Climate indexes of phytoliths from Homo erectus’cave deposits in Nanjing.Chinese Science Bulletin,2003,48(18):2005-2009.
[11]黄翡,Kealhofer L,黄凤宝.内蒙古典型草原禾本科植硅体形态.古生物学报,2004,43(2):246-253.
[12]秦利,李 杰,旺 罗等.青藏高原常见早熟禾亚科植硅体形态特征初步研究.古生物学报,2008.47(2):176-184.
[13]李泉,徐德克,吕厚远.竹亚科植硅体形态学研究及其生态学意义.第四纪研究,2005,25(6):777-784.
[14]徐中根.稻属植物微形态特征的比较分析.硕士学位论文.扬州:扬州大学生物科学与技术学院,2010.
[15]介冬梅,刘朝阳,石连旋等.松嫩平原不同生境羊草植硅体形态特征及环境意义.中国科学,2010,40(4):492–502.
[16]耿云霞,李依玲,朱砂等.盐碱胁迫下羊草植硅体的形态变化.植物生态学报,2011,35(11):1148-1155.
[17]刘利丹,介冬梅,刘洪妍等.东北地区芦苇植硅体的变化特征.植物生态学报,2013,37(9):861-871.
[18]Lv H Y,Liu K B.Morphological variations of lobate phytoliths from grasses in China and the south-eastern United States.Diversity and Distributions,2003,09:73-87.
[19]介冬梅,葛勇,郭继勋等.中国松嫩草原羊草植硅体对全球变暖和氮沉降模拟的响应研究.环境科学,2010,31(8):1705-1715.
[20]Madella,Alexandre A,Ball T.International code for phytolith Nomenclature 1.0.Annals of Botany,2005,96:253-260.
[21]黄翡,Kealhofer L,黄凤宝.内蒙古草原中东部现代表土植硅体组合与植被关系.微体古生物学报,2004,21(4):419–430.
[22]张新荣,胡克,方石等.东北泥炭表土沉积植硅体—气候因子转换函数建立及应用.沉积学报,2008,26(4):676-682.
[23]安晓红,吕厚远.贡嘎山东坡表土植硅体组合的海拔分布及其与植被的关系.第四纪研究,2010,30(5):934–945.
[24]吴乃琴,吕厚远,孙湘君等.植物硅酸体—气候因子转换函数及其在渭南晚冰期以来古环境研究中的应用.第四纪研究,1994,03:270-279+288-.
[25]刘宝柱,李从先,业冶铮.长江三角洲地区晚第四纪古土壤中的植物硅酸体及其古环境意义.海洋地质与第四纪地质 ,1995,15(2):17-23.
[26]吕厚远,刘东生,吴乃琴.末次间冰期以来黄土高原南部植被演替的植物硅酸体记录.第四纪研究,1999,04:336-349.

相似文献/References:

备注/Memo

备注/Memo:
环保公益项目(No.201109067),国家自然科学基金(No.40971116)
更新日期/Last Update: 2015-09-08