互花米草入侵对黄河口湿地土壤碳氮磷及其生态化学计量特征的影响

	互花米草入侵对黄河口湿地土壤碳氮磷及其生态化学计量特征的影响
其他题名	Effects of Spartina alterniflora Invasion on Soil Carbon, Nitrogen, Phosphorus and Their Ecostoichiometric Characteristics in the Yellow River Estuary Wetlands
	刘展航 1,2,3; 张树岩 4; 侯玉平 1; 朱书玉 4; 王立冬 4; 施欣悦 2,5; 李培广 2,3; 韩广轩2,3 ; 谢宝华2,3
发表期刊	生态环境学报
ISSN	1674-5906
	2022
卷号	31 期号:7 页码:1360-1369
关键词	互花米草黄河口营养元素生态化学计量全碳滨海湿地入侵年限
英文摘要	Spartina alterniflora invasion has severely threatened the ecological integrity of coastal wetland ecosystems. The carbon, nitrogen, phosphorus and ecostoichiometric characteristics of soils in different layers were investigated under different stages of S. alterniflora invasion in the Yellow River Estuary wetlands. Using the method of substituting space for time, 0-100 cm soil samples were collected in wetlands of different stages of S. alterniflora invasion (SA3, invaded in 2016;SA8, invaded in 2011;SA13, invaded in 2006)and uninvaded bare flats (SA0). The contents of total carbon (TC), total nitrogen (TN)and total phosphorus (TP), were then measured and analyzed by the stoichiometric ratios of carbon, nitrogen and phosphorus. Results showed that (1)S. alterniflora invasion increased the content of TC and TN in surface soils, but had little effects on TP. (2)TC contents in the 0-10 cm soil layer of SA16, SA11 and SA06 were 18.9%, 27.6% and 57.6% higher than that of SA0, respectively, and TN contents were 1.39, 2.37 and 3.66 times higher than that of SA0, respectively. (3)S. alterniflora invasion didn't significantly affect soil w(C)/w(N), but increased w(C)/w(P)and w(N)/w(P)in shallow soils, and decreased w(C)/w(P)and w(N)/w(P)in deep soils. The order of soil w(C)/w(P)and w(N)/w(P)in the 0-10 cm soil layer was SA13>SA8>SA3>SA0. In the 0-100 cm soil layer, the order of soil w(C)/w(N)was SA0>SA8>SA13>SA3, that of soil w(C)/w(P)was SA13>SA8>SA0>SA3, and that of soil w(N)/w(P)was SA13>SA0>SA3>SA8. In the 0-100 cm soil layer, soil pH, electrical conductivity, bulk density and water content were important environmental factors affecting the contents of carbon, nitrogen and phosphorus. There were no significant correlations between w(C)/w(N)and soil environmental factors, but w(C)/w(P)and w(N)/w(P)were significantly correlated with environmental factors. In conclusion, S. alterniflora invasion changed the contents of soil carbon and nitrogen in the salt marsh wetlands of the Yellow River Estuary and affected the balance of soil nutrient resources.
中文摘要	互花米草入侵(Spartina alterniflora)严重威胁滨海湿地生态系统的生态平衡。为了探究不同入侵年限互花米草对土壤碳氮磷及其生态化学计量特征在不同土层间的差异,选择黄河口盐沼互花米草湿地为研究对象,采用空间替代时间的方法,采集不同入侵年限互花米草湿地(SA3,2016年入侵;SA8,2011年入侵;SA13,2006年入侵)及邻近未入侵的光滩(SA0)的0—100 cm土壤,测定其总碳(TC)、总氮(TN)、总磷(TP)含量,分析互花米草入侵对土壤碳氮磷生态化学计量比的影响。研究结果表明:(1)互花米草入侵显著提升了0—10 cm土壤TC和0—20 cm土壤TN含量,但对土壤TP含量影响很小;(2)SA3、SA8和SA13的0—10 cm土层TC含量分别比光滩高18.9%、27.6%和57.6%,TN含量分别比光滩高1.39、2.37和3.66倍;(3)互花米草入侵对土壤w_((C))/w_((N))的影响很小且没有明显规律,使浅层土壤的w_((C))/w_((P))和w_((N))/w_((P))增加,但降低了深层土壤的w_((C))/w_((P))和w_((N))/w_((P)),在0—10 cm土层,土壤w_((C))/w_((P))和w_((N))/w_((P))由大到小排序均依次为SA13》SA8》SA3》SA0,而在0—100 cm土层,土壤w_((C))/w_((N))由大到小排序依次为SA0》SA8》SA13》SA3,w_((C))/w_((P))依次为SA13》SA8》SA0》SA3,w_((N))/w_((P))依次为SA13》SA0》SA3》SA8。在0—100 cm土壤中,pH、电导率、容重、含水量是影响碳氮磷含量的重要环境因子,w_((C))/w_((N))与土壤环境因子没有显著相关性,而w_((C))/w_((P))和w_((N))/w_((P))受环境因子影响显著。综上,互花米草入侵改变了黄河口盐沼湿地土壤碳、氮含量,进而影响土壤养分资源配比的平衡状态。
文章类型	期刊论文
收录类别	CSCD
语种	中文
CSCD记录号	CSCD:7289000
引用统计
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/34199
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室支撑部门_中国科学院黄河三角洲滨海湿地试验站
作者单位	1.鲁东大学生命科学学院,山东烟台264025; 2.中国科学院烟台海岸带研究所/中国科学院海岸带环境过程与生态修复重点实验室/山东省海岸带环境过程重点实验室,山东烟台264003; 3.中国科学院黄河三角洲滨海湿地生态系统野外科学观测研究站,山东东营257500; 4.山东省黄河三角洲国家级自然保护区管理委员会,山东东营257500; 5.吉林农业大学动物科学技术学院,吉林长春130118
推荐引用方式 GB/T 7714	刘展航,张树岩,侯玉平,等. 互花米草入侵对黄河口湿地土壤碳氮磷及其生态化学计量特征的影响[J]. 生态环境学报,2022,31(7):1360-1369.
APA	刘展航.,张树岩.,侯玉平.,朱书玉.,王立冬.,...&谢宝华.(2022).互花米草入侵对黄河口湿地土壤碳氮磷及其生态化学计量特征的影响.生态环境学报,31(7),1360-1369.
MLA	刘展航,et al."互花米草入侵对黄河口湿地土壤碳氮磷及其生态化学计量特征的影响".生态环境学报 31.7(2022):1360-1369.