|本期目录/Table of Contents|

[1]陈诗越,金章东,吴艳宏,等.近百年来龙感湖地区湖泊营养化过程[J].地球科学与环境学报,2004,26(04):81-84.
　CHEN Shi-yue,JIN Zhang-dong,WU Yan-hong,et al.An 100-year nutrients accumulation process from lacustrine records in Longgan Lake Southeast China CHEN Shi-yue[J].Journal of Earth Sciences and Environment,2004,26(04):81-84.
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第26卷
期数:
2004年第04期
页码:
81-84
栏目:
出版日期:
2004-12-20

文章信息/Info

Title:
An 100-year nutrients accumulation process from lacustrine records in Longgan Lake Southeast China CHEN Shi-yue
作者:
陈诗越1; 2; 金章东1; 吴艳宏1; 杨丽原1
1.中国科学院南京地理与湖泊研究所,江苏南京210008;2.聊城大学环境与规划学院,山东聊城252059
Author(s):
CHEN Shi-yue 1; 2; JIN Zhang-dong 1; WU Yan-hong 1; YANG Li-yuan 1
1 .Na njing Institute of Geography and l im nology , Chinese Academy of Sciences , Nanj ing 210008 , China ; 2 .School of E nv ironmen t and P lanning , L iaocheng Un iv ersity , Sha ndong L iaocheng , 252059 , China
关键词:
湿地花粉; 湖泊营养化; 龙感湖; 磁化率
Keywords:
wet plants ; lake eutrophication; Longgan Lake
分类号:
X524
DOI:
-
文献标志码:
A
摘要:
由于近年来社会经济的迅速发展,湖泊富营养化问题日趋严重,其中湿地的破坏是导致入湖营 养盐增加的一个重要原因。对湿地变化与湖泊营养盐状况关系的分析是制定湖泊环境整治和生态修复 的重要科学依据。湖泊沉积物含有丰富的生物和理化方面的信息,在缺乏长期湖泊监测记录的情况下, 可以用来重建湖泊及其流域过去变化的历史。根据龙感湖表层沉积物210Pb活度比变化,分析了该地区 近百年来沉积物中湿地花粉、总磷和磁性参数,探讨了湖泊营养化过程及机理。研究表明,龙感湖近百 年来营养级的增加是与湿生植被的破坏密切相关。20世纪上半叶的湖泊富营养化响应于磁性参数指 示的流域土壤侵蚀速率的增加,而20世纪70年代以来湖泊营养程度的加重则与龙感湖流域农业化肥 的使用和湿地植被破坏而导致湿地功能减弱有关。龙感湖流域内人类对湖周滩地的改造,破坏了湿地 植被,助长了入湖物质的增加,湖泊营养相对富集,最终导致水体富营养化发生。
Abstract:
The Lake hutrophication is severe commo nly in some areas of China as a result of rapid dev elo pment of social economy in last few decades.The wetland, as the linkage between the terrestrial and aquatic environments , may perform the buffer and nutrient sto rag e functions.The wetland vegetation, to some extent, can no t only intercept the mineral transpo rted from catchment, but also purify the w ater flow ing into the lake .With the destruction of wetland plants, the wetland eliminates the functions of the buffers and nutrient sto rag e.The scientific preventative measurements and restorative management require to provide mo re detailed background data and the relationship between we tland and lake nutrient state .Lake sediment containing large amount of ecological, phy sical and chemical information can be used to reconstruct the past changes of lake and its catchment .The lake eutrophicatio n pro cess of Lo ngg an Lake was discussed for the last one century based on the we t plants pollen , magnetic parameter and total phosphorus analysis , combining with 210 Pb activity profile from a sho rt core of central Langgan Lake , located in the boundary betw een Hubei and Anhui Pro vinces.The beginning of lake eutro phication during first half part of the 20th century was related with the accelerated soil erosio n in w atershed deduced from pollen and mag netism , w hile the enhanced trophic condition since 1970 s w ith the wide usage of chemical fer tilizer as w ell as the destruction of we t land vegetation , resulting in the weakened of wet land interception function .The degeneration of w etland vegetation caused the land nutrient discharges by human activities around the lake ca tchment .The lake nutrient enriched relatively , following by the lake eutrophication at present .

参考文献/References:

[1] Rood , B E , J F Gott gens , J J Delf ino, et al.Mercury accumulation t rends in Florida everglades and savannahs marsh flood soi ls [J] .Wat er Air Soil Pollution , 1995 , 80 :981 ～ 90 .
[2] Anderson W Rat e, Alistai r E , et al.Distribution of heavy met als in near-shore sediments of the sw an river estuary , w est ern Aust ralia[J] .Water Ai r and S oil Pollution , 2000 , 124 :155 ～ 68 .
[3] 王 苏 民 , 窦 鸿 生 .中 国 湖 泊 志 [M] .北 京 :科 学 出 版 社 , 1998.235 ～ 236 .
[4] 羊向 东 , 沈吉 , 夏威 岚, 等 .龙感湖 近代沉积硅藻 组合与营养 演化的动态过程[J] .古生物学报 , 2002 , 413):455 ～ 460 .
[5] Oldf ield F , Ruijin W .The Magnet ic properties of the recent sediment s of Brothers Water, NW England[J] .Journal of Palaeolimnology , 2000 , 23 :165 ～ 174 .
[6] Yang Xiangdong , Wang S umin , Shen Ji , et al.Lacust rine environment responses t o human act ivit ies in the past 300 years in Longgan Lake cat chment , southeast China[J] .Science in China Series D), 2002 , 458):709 ～ 718 .
[7] 施雅风 , 张丕远 .中国历史气候变化[M] .济南 :山东科学技 术出版社 , 1996.459 ～ 463 .

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备注/Memo

备注/Memo:
[收稿日期]2004-01-28
[基金项目]中国科学院创新项目KZCX2-302);中国科学院研究生院科学与社会实践资助项目;聊城大学科研基金资助项目
[作者简介]陈诗越1969-),男,江苏南京人,博士,现从事湖泊沉积与资源环境研究工作。
更新日期/Last Update: 2004-12-20