【摘要】：在膠州灣選取蘆葦、堿蓬、光灘及大米草4種典型濱海濕地類型,分季節(jié)和層次采集土壤樣品,測定土壤有機碳含量,分析濱海濕地土壤有機碳的時空分布及儲量.結果表明:垂直方向上,除光灘濕地沿剖面呈先減小后稍有上升的趨勢外,其他濕地均隨土壤深度的增加而減小;水平方向上,濕地土壤有機碳含量表現(xiàn)為大米草濕地光灘濕地堿蓬濕地蘆葦濕地;季節(jié)上,濕地土壤有機碳含量表現(xiàn)為春季夏季秋季冬季.土壤有機碳含量與土壤含鹽量、含水率、TN及C/N呈正相關,與土壤容重、pH值呈負相關.不同類型濕地土壤剖面有機碳密度表現(xiàn)為光灘濕地蘆葦濕地堿蓬濕地,濕地類型對土壤有機碳含量和有機碳密度分布的影響存在一定差異.因儲碳層厚度及儲碳層內(nèi)有機碳密度的差異,光灘濕地單位面積有機碳儲量明顯高于堿蓬和蘆葦濕地,具有較大的儲碳潛能,對研究區(qū)濱海濕地起到一定的碳匯作用.
[Abstract]:Four typical coastal wetland types, Reed, Suaeda salsa, Guang Tan and Rice Grass, were selected in Jiaozhou Bay. Soil samples were collected in different seasons and levels to determine soil organic carbon content, and the spatial and temporal distribution and storage of soil organic carbon in coastal wetland were analyzed. The results showed that, in the vertical direction, except for the trend of first decreasing and then slightly increasing along the section, the other wetlands decreased with the increase of soil depth. In the horizontal direction, the soil organic carbon content of the wetland is the Reed wetland of Suaeda salsa wetland, and the soil organic carbon content of the wetland is spring, summer, autumn and winter. Soil organic carbon content was positively correlated with soil salt content, moisture content, TN and C / N, but negatively correlated with soil bulk density and pH value. The soil profile organic carbon density of different types of wetland is the Reed wetland Suaeda marsh of Guangtan wetland, and the effect of wetland type on soil organic carbon content and organic carbon density distribution is different. Because of the difference of the thickness of carbon storage layer and the density of organic carbon in carbon storage layer, the storage of organic carbon per unit area of Guangtan wetland is obviously higher than that of Suaeda salsa and Reed wetland.
【作者單位】： 青島大學環(huán)境科學與工程學院;
【基金】：國家自然科學基金項目(41101080) 山東省自然科學基金項目(ZR2014DQ028,ZR2015DM004)資助~~
【分類號】：S153.6

【相似文獻】

相關期刊論文 前2條

1 董文雪;王方雄;侯英姿;;基于GIS/RS的濱海濕地景觀格局多尺度分析——以遼寧省大洼縣為例[J];安徽農(nóng)業(yè)科學;2013年32期

2 ;[J];;年期

相關碩士學位論文 前1條

1 常晶晶;生物炭、天然生物質(zhì)和有機氮肥對黃河三角洲濱海濕地土壤有機氮礦化的影響[D];中國海洋大學;2015年

，

本文編號：2321271