长江河口九段沙互花米草湿地生态系统N、P、K的循环特征

生态学杂志

长江河口九段沙互花米草湿地生态系统N、P、K的循环特征

杨永兴¹;刘长娥^1，2;杨杨³

¹同济大学环境科学与工程学院污染控制与资源化国家重点实验室，长江水环境教育部重点实验室，上海 200092;²上海农业科学院生态环境保护研究所，上海 201106; ³同济大学生命科学与技术学院，上海 200092

收稿日期:2008-07-15 修回日期:1900-01-01 出版日期:2009-02-10 发布日期:2009-02-10

Characteristics of N, P and K cycling in Spartina alterniflora wetland ecosystem in Jiuduansha shoal of Yangtze River estuary.

YANG Yong-xing¹;LIU Chang-e^1，2;YANG Yang³

¹Key Laboratory of Yangtze River Water Environment, Ministry of Education, State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Shanghai 200092, China; ²Institute of Ecological Environment Protection, Shanghai Academy of Agricultural Science, Shanghai 201106, China;³School of Life Science and Technology, Tongji University, Shanghai 200092, China

Received:2008-07-15 Revised:1900-01-01 Online:2009-02-10 Published:2009-02-10

摘要/Abstract

摘要： 研究了九段沙外来入侵种互花米草（Spartina alterniflora）湿地生态系统的营养元素含量、分布规律与循环特征。结果表明，九段沙的上沙、中沙和下沙互花米草湿地土壤全量养分含量差异相对较小，而速效性养分含量差异相对较大。土壤剖面中TK含量大大高于TN和TP含量,排序为:TK＞TN＞TP。各沙洲速效性养分含量排序为：速效K＞速效N＞速效P。土壤速效性养分与全量养分的空间分布规律并不一致，土壤剖面营养元素的垂直分布差异比较明显，速效性养分土壤剖面垂直分异比全量养分显著。各深度土壤营养元素含量均存在差异，不同沙洲同一深度土壤营养元素含量也存在差异。各沙洲不同深度土壤TN含量的差异明显大于TP和TK含量差异。植物中3种营养元素含量以K最高，N其次，P最低。湿地生态系统营养元素归还量远大于存留量。吸收系数排序为：N＞P＞K。不同沙洲营养元素的利用系数和循环系数存在明显差异，上沙P元素、中沙与下沙K元素利用系数最大，上沙K元素、中沙P元素与下沙N元素循环系数最大。

关键词: 生态修复, 叶绿素a, 粒径

Abstract: In the upper, middle, and lower shoals of Jiuduansha shoal at Yangztse River estuary, an investigation was made on the content, distribution pattern, and cycling characteristics of nutrient elements N, P and K in invading species Spartina alterniflora wetland ecosystem. The results showed that among the S. alterniflora wetland ecosystems in the three shoals, the contents of soil total N, P, and K had relatively small differences, but those of soil available N, P, and K had larger differences. The total K content in soil profile was far higher than the contents of total N and P, with the order of total K>total N>total P. Soil available nutrient contents in the three shoals were in the order of available K > available N > available P. Soil available N, P, and K had different spatial distribution patterns from soil total N, P, and K, and their vertical differentiation in the profile was more obvious than that of soil total N, P, and K. The contents of N, P, and K at different soil depths in the same shoals or at the same soil depths in different shoals were different, and the difference of total N was obviously larger than that of total P and K. The plant K content was the highest, followed by N, and P. The return of nutrient elements in the wetland ecosystem was far greater than their reserve, and the absorption coefficient was in the order of N>P>K. There existed obvious differences in the utilization coefficient and cycling coefficient of N, P, and K among the three shoals of Jiuduansha shoal. The P in the upper shoal and the K in the middle and lower shoals had the highest utilization coefficient; while the K in the upper shoal, P in the middle shoal, and N in the lower shoal had the highest cycling coefficient.

Key words: Ecoremediation, Chlorophyll-a, Size-fractionation

杨永兴;刘长娥;杨杨. 长江河口九段沙互花米草湿地生态系统N、P、K的循环特征[J]. 生态学杂志.

YANG Yong-xing¹;LIU Chang-e^1，2;YANG Yang³ . Characteristics of N, P and K cycling in Spartina alterniflora wetland ecosystem in Jiuduansha shoal of Yangtze River estuary.[J]. cje.

[1]	田北辰, 农昀, 黄啸, 谢燕华. 新冠疫情下的鸟类时空格局变化特征及其对城市生态规划的启示——以香港为例 [J]. 生态学杂志, 2023, 42(5): 1155-1166.
[2]	刘玉佳, 彭建, 李刚勇, 韩万强, 刘亮, 关靖云, 巨喜峰, 郑江华. 基于GEE的库鲁斯台草原生态环境评价 [J]. 生态学杂志, 2023, 42(11): 2776-2785.
[3]	吴一凡, 艾瑶, 郑忠禄, 庄敏, 丁振华. 厦门四个红树林湿地修复工程成效评估 [J]. 生态学杂志, 2023, 42(10): 2419-2424.
[4]	徐慧, 吕庆, 杨雨荷, 麻坚, 唐雪峰, 徐礼根. 边坡植被重建效果评价：研究进展与展望 [J]. 生态学杂志, 2022, 41(3): 589-596.
[5]	王冰, 周扬, 张秋良. 兴安落叶松林龄对土壤团聚体分布及其有机碳含量的影响 [J]. 生态学杂志, 2021, 40(6): 1618-1628.
[6]	杨灿, 魏天兴, 李亦然, 刘晓华, 陈宇轩. 黄土高原典型县域植被覆盖度时空变化及地形分异特征 [J]. 生态学杂志, 2021, 40(6): 1830-1838.
[7]	谷娇, 韩燕青, 何虎, 戴燕燕, 张鹏飞, 李宽意. 淡水贝类河蚬对沉水植物苦草生长的影响 [J]. 生态学杂志, 2021, 40(5): 1512-1520.
[8]	汤姚楠, 周伟奇. 废弃矿区生态修复的资源再利用价值评估——以徐州为例 [J]. 生态学杂志, 2020, 39(10): 3430-3441.
[9]	蔡露,张鹏,侯轶群,金瑶,姚军,黄应平. 我国过鱼设施建设需求、成果及存在的问题 [J]. 生态学杂志, 2020, 39(1): 292-299.
[10]	武海雯,杨秀艳,王计平,刘正祥,朱建峰,张华新. 沙枣改善盐碱土壤养分的研究进展 [J]. 生态学杂志, 2019, 38(11): 3527-3534.
[11]	刘硕,李品,冯兆忠. 京津冀防风固沙植被生态修复研究进展与对策 [J]. 生态学杂志, 2019, 38(1): 267-274.
[12]	吴文广,张继红,刘毅,王巍. 獐子岛海域冬季分级叶绿素a的分布特征及其影响因素 [J]. 生态学杂志, 2018, 37(3): 906-913.
[13]	张璐1,2,刘碧云2*,葛芳杰2,刘琪1,2,易科浪2,吴振斌1,2. 丝状绿藻生长的环境影响因子及控制技术研究进展 [J]. 生态学杂志, 2017, 36(7): 2029-2035.
[14]	刘志强1,高吉喜1,2*,田美荣2,栗忠飞2,王亚萍1,童明坤1. 生态修复区植物群落土壤粒径的分维特征 [J]. 生态学杂志, 2017, 36(2): 303-308.
[15]	孟鹏*. 低养分基质下沙地柏和樟子松苗木对遮荫的响应 [J]. 生态学杂志, 2017, 36(11): 3190-3198.