外源磷输入对兴凯湖沼泽土壤种子库种子萌发的影响
Effect of Exogenous Phosphorus Inputs on Seed Germination of Soil Seed Bank in Marshes in Xingkai Lake
查看参考文献24篇
|
文摘
|
通过温室萌发实验, 研究磷养分输入对兴凯湖狭叶甜茅(Glyceria spiculosa)沼泽、槽鳞扁莎(Pycreus korshinskyi)沼泽、恢复沼泽、大豆地和水稻田土壤种子库种子萌发的影响。结果表明, 磷养分输入并没有显著影响狭叶甜茅沼泽、槽鳞扁莎沼泽土壤种子库种子萌发的物种组成, 但是随着磷养分由低—中—高浓度的输入, 两者的种子库萌发幼苗数呈现减小—增加—显著减小的变化。其中, 8g/m~3磷养分输入使二者的种子库种子萌发幼苗数量显著减少(p<0.05)。磷养分输入对恢复沼泽和农田的土壤种子库种子萌发影响不明显。2g/m~3磷养分输入显著减少了狭叶甜茅沼泽土壤种子库中野稗(Echinochloa crusgalli)的幼苗萌发数量, 而磷养分浓度达到8g/m~3时, 槽鳞扁莎和三裂慈菇(Sagittaria trifolia)的幼苗萌发数量显著减少。磷养分输入可能会抑制狭叶甜茅和槽鳞扁莎沼泽物种的种子萌发数量, 进而改变沼泽植物群落结构。应注意控制沼泽中营养物质的输入, 以维持沼泽植物群落结构和生态系统的稳定。 |
|
其他语种文摘
|
A seed bank assay was performed in a greenhouse to evaluate the effects of phosphorus enrichment on seed germination from seed banks of marshes dominated by Glyceria spiculosa and Pycreus korshinskyi, restored marsh and soybean field and paddy field in Xingkai Lake area respectively. The results showed that phosphorus nutrient inputs didn’t have significant effects on the composition of species germinated from soil seed banks of natural marshes dominated by Glyceria spiculosa and Pycreus korshinskyi respectively. But with the contents of phosphorus nutrient inputs increased from 2 g/m~3 to 8 g/m~3, the number of seedlings germinated from the two natural marshes showed the trend from decreasing to increasing to significant decreasing, 8 g/m~3 phosphorus nutrient input resulted in the number of seedlings germinated from the two natural marshes decreasing significantly. Phosphorus nutrient inputs didn’t significantly affect seedlings emergence from restored marsh and crop fields. The number of seedlings of Echinochloa crusgalli decreased significantly with 2 g/m~3 phosphorus nutrient input, while Pycreus korshinskyi, Sagittaria trifolia decreased significantly with 8 g/m~3 phosphorus nutrient input, which meant that phosphorus nutrient inputs might affect the number of seedlings of the species in marshes and cause the alteration of plant community structure and composition of marshes. The nutrient enrichment should be considered and controlled to protect the stabilization of plant communities and ecosystem in wetlands. |
|
来源
|
湿地科学
,2013,11(1):41-47 【核心库】
|
|
关键词
|
磷
;
狭叶甜茅
;
槽鳞扁莎
;
沼泽
;
养分输入
;
种子库
|
|
地址
|
1.
中国科学院东北地理与农业生态研究所, 中国科学院湿地生态与环境重点实验室, 吉林, 长春, 130102
2.
东北林业大学, 黑龙江, 哈尔滨, 150040
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1672-5948 |
|
学科
|
植物学 |
|
基金
|
国家自然科学基金项目
;
国家自然科学基金重点项目
|
|
文献收藏号
|
CSCD:4790040
|
参考文献 共
24
共2页
|
|
1.
Johnson S. Effects of water level and phosphorus enrichment on seedling emergence from marsh seed banks collected from northern Belize.
Aquatic Botany,2004,79(4):311-323
|
被引
25
次
|
|
|
|
|
2.
凌敏. 黄河三角洲柽柳林场湿地土壤养分的空间异质性及其与植物群落分布的耦合关系.
湿地科学,2010,8(1):92-97
|
被引
26
次
|
|
|
|
|
3.
曾从盛. 闽江河口湿地芦苇和互花米草氮、磷养分季节动态.
湿地科学,2009,7(1):16-24
|
被引
28
次
|
|
|
|
|
4.
Shaver G R. Species composition interacts with fertilizer to control long-term change in tundra productivity.
Ecology,2001,82(11):3163-3181
|
被引
10
次
|
|
|
|
|
5.
Valeiela I. Production and dynamics of salt marsh vegetation and the effects of experimental treatment with sewage sludge.
Journal ofApplied Ecology,1975,12(3):973-981
|
被引
1
次
|
|
|
|
|
6.
Urban N H. Fluctuations in sawgrass and cattail densities in Evergrades Water Conservation Area 2A under varying nutrient, hydrologic and fire regimes.
Aquatic Botany,1993,46(3):203-223
|
被引
1
次
|
|
|
|
|
7.
徐治国. 湿地植物对外源氮、磷输入的响应研究.
环境科学研究,2007,20(1):64-68
|
被引
20
次
|
|
|
|
|
8.
Miao S L. Seasonal variation in seed bank composition and its interaction with nutrient enrichment in the Everglades wetlands.
Aquatic Botany,2009,90(2):157-164
|
被引
9
次
|
|
|
|
|
9.
朴德雄. 兴凯湖水环境状况及其保护对策.
湖泊科学,2011,23(2):196-202
|
被引
14
次
|
|
|
|
|
10.
王献浦. 兴凯湖保护区的基本特点及其有效管理.
野生动物杂志,2006,27(2):29-32
|
被引
1
次
|
|
|
|
|
11.
刘兴土.
三江平原自然环境变化与生态保育,2002:59-82
|
被引
35
次
|
|
|
|
|
12.
黑龙江统计局.
黑龙江统计年鉴,2002:194-201
|
被引
3
次
|
|
|
|
|
13.
van der Valk A G. Seed bank composition along a phosphorus gradient in the northern Florida Everglades.
Wetlands,1997,17(2):228-236
|
被引
2
次
|
|
|
|
|
14.
Smith S M. Constraints of seed bank species composition and water depth for restoring vegetation in the Florida Everglades, USA.
Restoration Ecology,2002,10(1):138-145
|
被引
5
次
|
|
|
|
|
15.
Foster B L. Species richness in a successional grassland, effects of nutrient enrichment and plant litter.
Ecology,1998,79(8):2593-2602
|
被引
49
次
|
|
|
|
|
16.
Rejmankova E. Wetland ecosystem changes after three years of phosphorus addition.
Wetlands,2008,28(4):914-927
|
被引
3
次
|
|
|
|
|
17.
Wisheu I C. Seed banks of a rare wetland plant community: distribution patterns and effects of human-induced disturbance.
Journal of vegetation science,1991,2(2):181-188
|
被引
3
次
|
|
|
|
|
18.
Aerts R. The effect of increased nutrient availability on vegetation dynamics in wet heathlands.
Plant Ecology,1988,76(1):63-79
|
被引
3
次
|
|
|
|
|
19.
Craft C B. Response of Everglades's plant-communities to nitrogen and phosphorus additions.
Wetland,1995,15(3):258-271
|
被引
1
次
|
|
|
|
|
20.
Daust R J. Ecological effects of low-level phosphorus additions on two plant communities in a neotropical freshwater wetland ecosystem.
Oecologia,2004,141(4):672-686
|
被引
1
次
|
|
|
|
|
了解气象卫星更多信息，请访问