Soil physicochemical properties associated with quasi-circular vegetation patches in the Yellow River Delta, China
文献类型：期刊论文
| 作者 | Liu, Qingsheng1,2; Liu, Gaohuan1; Huang, Chong1; Li, He1 |
| 刊名 | GEODERMA
 |
| 出版日期 | 2019-03-01 |
| 卷号 | 337页码:202-214 |
| 关键词 | Soil nutrient Soil particle size Quasi-circular vegetation Yellow River Delta |
| ISSN号 | 0016-7061 |
| DOI | 10.1016/j.geoderma.2018.09.021 |
| 通讯作者 | Liu, Qingsheng(liuqs@lreis.ac.cn) |
| 英文摘要 | In recent years, decreased runoff and sediment, intensified storm surge and seawater intrusion, urbanization, petroleum exploration, and production, and other factors have gradually deteriorated the unique wetland ecosystem in the Yellow River Delta (YRD). Although previous studies have analyzed the relationships between vegetation and soil properties at different scales, few studies have documented quasi-circular vegetation patches (QVPs) in the YRD, which appear to exhibit faster succession rates that make them ideal for studies on the relationships between vegetation and soil properties. Therefore, this study investigated differences in soil physicochemical properties at 0-20 cm depths between QVPs and inter-QVP bare soil areas, among QVPs, and among plant species communities. Additionally, spatial variations in soil physicochemical properties were explored in south-north and west-east transects across and within QVPs. The results showed that soils beneath QVPs had significant fertility island effects associated with soil organic matter (SOM) and total nitrogen (TN). Furthermore, these areas were richer in clay content, showed slightly higher pH values, and exhibited less available phosphorus (APH), available potassium (APO), total salt content, and silt content than those of bare soil areas. A multiple independent samples nonparametric Kruskal-Wallis H test detected significant differences in SOM, TN, APH, and pH among 18 QVPs, but no significant differences were found in APO, total salt content, sand, silt, and clay contents. Regardless of plant species, different plant species communities had significant effects on soil physicochemical properties. Particularly, soils underneath plant species communities with Tamarix chinensis were richer in SOM and TN, and they contained less APH, APO, and total salt content than those without T. chinensis. In each QVP, values of SOM and TN in soil samples along the patch perimeter were less than those of samples located midway toward the perimeter, and these values were less than those of samples centered in the patch. However, APO and total salt content values exhibited opposite changes from the perimeter to the center of the patch. The results also indicated significant differences in SOM, TN, APH, APO, and pH between south-north transect A and west-east transect B across QVPs, but no significant differences were found in total salt content, sand, silt, and clay contents. Therefore, the results of this study indicate that QVPs have significant effects on topsoil nutrients and salinity but little effects on soil texture. Furthermore, the occurrence and development of QVPs are associated with suitable soil conditions, including higher clay fractions and lower total salt content values. |
| WOS关键词 | ECOLOGICAL RISK-ASSESSMENT ; DYNAMICS ; HETEROGENEITY ; WETLAND ; MECHANISMS ; SUCCESSION ; ZONE |
| 资助项目 | National Natural Science Foundation of China[41671422] ; National Natural Science Foundation of China[41661144030] ; National Natural Science Foundation of China[41471335] ; Innovation Project of LREIS[08R8A010YA] ; Innovation Project of LREIS[088RA20CYA] ; National Key Research and Development Project of China[2016YFC1402701] |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000456761500021 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National Natural Science Foundation of China ; Innovation Project of LREIS ; National Key Research and Development Project of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/49921]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Liu, Qingsheng |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 2.Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing 210023, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Qingsheng,Liu, Gaohuan,Huang, Chong,et al. Soil physicochemical properties associated with quasi-circular vegetation patches in the Yellow River Delta, China[J]. GEODERMA,2019,337:202-214. |
| APA | Liu, Qingsheng,Liu, Gaohuan,Huang, Chong,&Li, He.(2019).Soil physicochemical properties associated with quasi-circular vegetation patches in the Yellow River Delta, China.GEODERMA,337,202-214. |
| MLA | Liu, Qingsheng,et al."Soil physicochemical properties associated with quasi-circular vegetation patches in the Yellow River Delta, China".GEODERMA 337(2019):202-214. |
入库方式： OAI收割
来源：地理科学与资源研究所
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