Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2018.08.035 |
Can phosphorus additions increase long-term growth and survival of red alder (Alnus rubra Bong.) on periodically dry sites? | |
Brown, Kevin R.1; Courtin, Paul J.2 | |
2018-12-15 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2018 |
卷号 | 430页码:545-557 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada |
英文摘要 | Deficiencies of nutrients, especially phosphorus (P), and growing-season moisture may limit the growth and survival of nitrogen-fixing red alder (Alnus rubra Bong.), a commercially - important species in coastal forests of the Pacific Northwest and British Columbia. Future growing seasons are projected to be warmer and drier, potentially reducing P availability and plantation survival and growth on sites currently considered acceptable for alder management. We examined the effects of P additions on growth, survival, and nutrition in a young alder plantation on a moderately fertile and periodically droughty site on eastern Vancouver Island. Alder was planted in fall 1999 (C99 cohort) and fill-planted in spring 2001 (C01 cohort). We applied triple superphosphate (0-45.0) beginning in spring 2001 and repeatedly to year 6. Initial rates were 0, 15, or 30 g P tree(-1) for the P0, P1, and P2 regimes respectively, and cumulative rates over 6 years were 0, 41, and 288 g P tree(-1). Moisture availability was inferred from monthly precipitation data and periodic measurements of soil moisture content. Growth and mortality were measured yearly through year 13 and foliar elemental concentrations, yearly through year 6. Through 13 years, P-fertilized trees were taller (+1.6 m, +16%) than unfertilized trees, had greater diameter at breast height (dbh) (+1.5 cm; + 14%) and, through year 6, greater foliar P concentrations. Treatment effects on growth were significant in year one and maintained thereafter but did not differ between the P1 and P2 regimes, Effects of P additions on current annual basal area increment (CAI(ba)) increased with early growing-season precipitation. Total mortality was ca. 30%, two-fold greater in the fill-planted (C01) than in the C99 cohort, and greatest in dry summers (2003, 2004), but did not vary with P treatment. Effects of P additions on height and dbh were less for crop (largest-diameter 400 trees ha(-1)) than for non-crop trees. Through 13 years, P additions did not affect the diameter-density curve. Effects of P additions on growth were less through 3 years but greater through 8-10 years than in plantations on sites classified as moister and more fertile. P additions early in plantation development can increase the productivity of red alder in periodically dry sites, but the increases are greater during moister growing seasons. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000449137300053 |
WOS关键词 | ASYMBIOTIC NITROGEN-FIXATION ; PINUS-TAEDA PLANTATIONS ; THINNING BOUNDARY LINE ; CLIMATE-CHANGE ; PACIFIC-NORTHWEST ; DOUGLAS-FIR ; FOREST MANAGEMENT ; BRITISH-COLUMBIA ; MOLYBDENUM LIMITATION ; EUCALYPTUS-GRANDIS |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/22666 |
专题 | 气候变化 |
作者单位 | 1.KR Brown & Associates, 4043 Zinnia Rd, Victoria, BC V82 4W2, Canada; 2.BC Minist Forests Lands Nat Resource Operat & Rur, Coast Area, 2100 Labieux Rd, Nanaimo, BC V9T 6E9, Canada |
推荐引用方式 GB/T 7714 | Brown, Kevin R.,Courtin, Paul J.. Can phosphorus additions increase long-term growth and survival of red alder (Alnus rubra Bong.) on periodically dry sites?[J]. FOREST ECOLOGY AND MANAGEMENT,2018,430:545-557. |
APA | Brown, Kevin R.,&Courtin, Paul J..(2018).Can phosphorus additions increase long-term growth and survival of red alder (Alnus rubra Bong.) on periodically dry sites?.FOREST ECOLOGY AND MANAGEMENT,430,545-557. |
MLA | Brown, Kevin R.,et al."Can phosphorus additions increase long-term growth and survival of red alder (Alnus rubra Bong.) on periodically dry sites?".FOREST ECOLOGY AND MANAGEMENT 430(2018):545-557. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论