Ulf Sikström

724 total citations
31 papers, 563 citations indexed

About

Ulf Sikström is a scholar working on Ecology, Nature and Landscape Conservation and Soil Science. According to data from OpenAlex, Ulf Sikström has authored 31 papers receiving a total of 563 indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Ecology, 15 papers in Nature and Landscape Conservation and 8 papers in Soil Science. Recurrent topics in Ulf Sikström's work include Peatlands and Wetlands Ecology (16 papers), Forest ecology and management (12 papers) and Seedling growth and survival studies (9 papers). Ulf Sikström is often cited by papers focused on Peatlands and Wetlands Ecology (16 papers), Forest ecology and management (12 papers) and Seedling growth and survival studies (9 papers). Ulf Sikström collaborates with scholars based in Sweden, Finland and Ireland. Ulf Sikström's co-authors include Staffan Jacobson, Hannu Hökkä, Hans‐Örjan Nohrstedt, Leif Klemedtsson, Maria Ernfors, Folke Pettersson, Robert G. Björk, Tobias Rütting, Gunnar Jansson and Eva Ring and has published in prestigious journals such as The Science of The Total Environment, Plant and Soil and Geoderma.

In The Last Decade

Ulf Sikström

30 papers receiving 512 citations

Peers

Ulf Sikström
Anne-Marie Kurka Finland
Per‐Olov Brandtberg Sweden
Torbjörn Nilsson Sweden
Lisa Zabek Canada
Björn Hånell Sweden
Daoxiong Cai China
D. G. Pyatt United Kingdom
Partap K. Khanna Australia
Dick L. Gebhart United States
Huili Feng China
Anne-Marie Kurka Finland
Ulf Sikström
Citations per year, relative to Ulf Sikström Ulf Sikström (= 1×) peers Anne-Marie Kurka

Countries citing papers authored by Ulf Sikström

Since Specialization
Citations

This map shows the geographic impact of Ulf Sikström's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ulf Sikström with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ulf Sikström more than expected).

Fields of papers citing papers by Ulf Sikström

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ulf Sikström. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ulf Sikström. The network helps show where Ulf Sikström may publish in the future.

Co-authorship network of co-authors of Ulf Sikström

This figure shows the co-authorship network connecting the top 25 collaborators of Ulf Sikström. A scholar is included among the top collaborators of Ulf Sikström based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ulf Sikström. Ulf Sikström is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Ring, Eva & Ulf Sikström. (2024). Environmental impact of mechanical site preparation on mineral soils in Sweden and Finland — a review. Silva Fennica. 58(1). 2 indexed citations
2.
Wallin, Marcus B., et al.. (2024). Ditch cleaning in boreal catchments: Impacts on water chemistry and dissolved greenhouse gases in runoff. Forest Ecology and Management. 569. 122146–122146.
3.
Finér, Leena, Samuli Joensuu, Elisabet Andersson, et al.. (2020). Manual for constructing water protection structures at ditch network maintenance sites and for water retention in forests. Jukuri (Natural Resources Institute Finland (Luke)). 1 indexed citations
4.
Nieminen, Mika, Sirpa Piirainen, Ulf Sikström, et al.. (2018). Ditch network maintenance in peat-dominated boreal forests: Review and analysis of water quality management options. AMBIO. 47(5). 535–545. 32 indexed citations
5.
Finér, Leena, Elve Lode, Mika Nieminen, et al.. (2018). WAMBAF – Good Practices for Ditch Network Maintenance to Protect Water Quality in the Baltic Sea Region. Jukuri (Luonnonvarakeskus Tietopalvelu). 4 indexed citations
6.
Sikström, Ulf, Staffan Jacobson, & Folke Pettersson. (2017). Recovery of crown transparency and stem growth of Pinus sylvestris after infestation by Gremmeniella abietina. Forest Ecology and Management. 392. 154–163. 2 indexed citations
7.
Sikström, Ulf & Hannu Hökkä. (2015). Interactions between soil water conditions and forest stands in boreal forests with implications for ditch network maintenance. Silva Fennica. 50(1). 51 indexed citations
8.
Ring, Eva, et al.. (2011). Water chemistry following wood-ash application to a Scots pine stand on a drained peatland in Sweden. Forestry Studies / Metsanduslikud Uurimused. 54(1). 54–70. 5 indexed citations
9.
Sikström, Ulf, Staffan Jacobson, Folke Pettersson, & Jan Weslien. (2011). Crown transparency, tree mortality and stem growth of Pinus sylvestris, and colonization of Tomicus piniperda after an outbreak of Gremmeniella abietina. Forest Ecology and Management. 262(12). 2108–2119. 10 indexed citations
10.
Björk, Robert G., Maria Ernfors, Ulf Sikström, et al.. (2010). Contrasting effects of wood ash application on microbial community structure, biomass and processes in drained forested peatlands. FEMS Microbiology Ecology. 73(3). no–no. 33 indexed citations
11.
Ernfors, Maria, Ulf Sikström, Mats B. Nilsson, & Leif Klemedtsson. (2010). Effects of wood ash fertilization on forest floor greenhouse gas emissions and tree growth in nutrient poor drained peatland forests. The Science of The Total Environment. 408(20). 4580–4590. 26 indexed citations
12.
Sikström, Ulf, Curt Almqvist, & Gunnar Jansson. (2010). Growth of Pinus sylvestris after the application of wood ash or P and K fertilizer to a peatland in southern Sweden. Silva Fennica. 44(3). 21 indexed citations
13.
Klemedtsson, Leif, Maria Ernfors, Robert G. Björk, et al.. (2010). Reduction of greenhouse gas emissions by wood ash application to a Picea abies (L.) Karst. forest on a drained organic soil. European Journal of Soil Science. 61(5). 734–744. 52 indexed citations
14.
Sikström, Ulf. (2007). Stem Growth of Picea Abies in South Western Sweden in the 10 Years Following Liming and Addition of PK and N. Water Air and Soil Pollution Focus. 7(1-3). 137–142. 1 indexed citations
15.
16.
Sikström, Ulf. (2004). Survival, growth and needle element concentrations of Picea abies (L.) Karst. seedlings after brash removal in a previously N fertilized stand. Forest Ecology and Management. 203(1-3). 123–134. 18 indexed citations
17.
18.
Nohrstedt, Hans‐Örjan, Staffan Jacobson, & Ulf Sikström. (2000). Effects of repeated urea doses on soil chemistry and nutrient pools in a Norway spruce stand. Forest Ecology and Management. 130(1-3). 47–56. 26 indexed citations
19.
Sikström, Ulf, Hans‐Örjan Nohrstedt, Folke Pettersson, & Staffan Jacobson. (1998). Stem-growth response of Pinus sylvestris and Picea abies to nitrogen fertilization as related to needle nitrogen concentration. Trees. 12(4). 208–214. 23 indexed citations
20.
Nohrstedt, Hans‐Örjan, Ulf Sikström, Eva Ring, et al.. (1996). Nitrate in soil water in three Norway spruce stands in southwest Sweden as related to N-deposition and soil, stand, and foliage properties. Canadian Journal of Forest Research. 26(5). 836–848. 50 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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