DOI: 10.1016/j.foreco.2014.05.005
Scopus记录号: 2-s2.0-84901507093
论文题名: Three-year growth response of young Douglas-fir to nitrogen, calcium, phosphorus, and blended fertilizers in Oregon and Washington
作者: Mainwaring D.B. ; Maguire D.A. ; Perakis S.S.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 327 起始页码: 178
结束页码: 188
语种: 英语
英文关键词: Douglas-fir
; Fertilization
; Liming
; Swiss needle cast
Scopus关键词: Calcium
; Calcium chloride
; Forestry
; Lime
; Metabolism
; Nitrogen
; Nutrients
; Phosphorus
; Soils
; Urea
; Calcium concentration
; Douglas fir
; Fertilization
; Growth-limiting nutrients
; Liming
; Nitrogen fertilization
; Nutrient limitations
; Swiss needle casts
; Growth response
; Washington
; Nitrogen fertilizers
; calcium
; coniferous forest
; fertilizer application
; growth response
; liming
; nitrogen
; nutrient limitation
; phosphorus
; plantation forestry
; productivity
; Calcium
; Calcium Chloride
; Fertilization
; Forestry
; Lime
; Metabolism
; Nitrogen
; Nutrients
; Phosphorus
; Pseudotsuga
; Soil
; Urea
; Oregon
; Pacific Northwest
; United States
; Washington [United States]
; Pseudotsuga
; Pseudotsuga menziesii
英文摘要: Studies of nutrient limitation in Douglas-fir forests of the Pacific Northwest focus predominantly on nitrogen, yet many stands demonstrate negligible or even negative growth response to nitrogen fertilization. To understand what nutrients other than nitrogen may limit forest productivity in this region, we tested six fertilizer treatments for their ability to increase stem volume growth response of dominant and co-dominant trees in young Douglas-fir plantations across a range of foliar and soil chemistry in western Oregon and Washington. We evaluated responses to single applications of urea, lime, calcium chloride, or monosodium phosphate at 16 sites, and to two site-specific nutrients blends at 12 of these sites. Across sites, the average stem volume growth increased marginally with urea, lime, and phosphorus fertilization. Fertilization responses generally aligned with plant and soil indicators of nutrient limitation. Response to nitrogen addition was greatest on soils with low total nitrogen and high exchangeable calcium concentrations. Responses to lime and calcium chloride additions were greatest at sites with low foliar calcium and low soil pH. Response to phosphorus addition was greatest on sites with low foliar phosphorus and high soil pH. Blended fertilizers yielded only marginal growth increases at one site, with no consistent effect across sites. Overall, our results highlight that calcium and phosphorus can be important growth limiting nutrients on specific sites in nitrogen-rich Douglas-fir forests of the Pacific Northwest. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65881
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: Department of Forest Engineering, Resources and Management, Oregon State University, Corvallis, OR 97331, United States; US Geological Survey, Forest and Rangeland Ecosystem Science Center, Corvallis, OR 97331, United States
Recommended Citation:
Mainwaring D.B.,Maguire D.A.,Perakis S.S.. Three-year growth response of young Douglas-fir to nitrogen, calcium, phosphorus, and blended fertilizers in Oregon and Washington[J]. Forest Ecology and Management,2014-01-01,327