气候变化领域集成服务门户(CCPortal): Mid-rotation response of Pinus taeda to early silvicultural treatments in subtropical Argentina

CCPortal

DOI	10.1016/j.foreco.2020.118317
	Mid-rotation response of Pinus taeda to early silvicultural treatments in subtropical Argentina
	Schulte M.L.; Cook R.L.; Albaugh T.J.; Allen H.L.; Rubilar R.A.; Pezzutti R.; Caldato S.L.; Campoe O.; Carter D.R.
发表日期	2020
ISSN	0378-1127
卷号	473
英文摘要	Pinus taeda plantations in subtropical areas of South America are extremely productive and commonly established on well-drained red clay sites. In the past, land with more poorly-drained soil was avoided due to concern over the factors limiting site productivity. Establishment of intensively managed plantations on poorly-drained soils usually includes soil preparation by subsoiling and/or bedding, weed control, and fertilization. However, forest managers lack information about the efficacy of early silvicultural practices to ameliorate environmental limitations and if these intensive practices generate long-term improvements in productivity in this area. Consequently, we established studies in northeastern Argentina on two sites differing by drainage class and soil texture as a full factorial design with site preparation (S; disking and disking + subsoiling (red clay) or bedding (wet loam)), fertilization (F; none or 78 kg ha−1 elemental phosphorus at planting), and weed control (W; none or two-year banded). Seven years after planting, the red clay and wet loam sites were equally productive, with maximum treatment means of 218 m3 ha−1 and 264 m3 ha−1 respectively. At the red clay site, only weed control significantly increased volume. At the wet loam site, both weed control and site preparation significantly increased volume, mainly due to increased survival. The combination of weed control and bedding yielded a non-additive volume response as indicated by a significant W*S interaction. Our results do not support the common practice of subsoiling on red clay soils. In addition, fertilization with P alone appears counterproductive or unneeded at both sites. © 2020 Elsevier B.V.
关键词	Clay Forestry Productivity Textures Tropics Environmental limitations Full factorial design Intensively managed plantations Poorly drained soils Silvicultural practices Silvicultural treatments Site productivity Soil preparation Weed control clay soil coniferous tree forestry practice silviculture soil texture subtropical region Bedding Clay Fertilization Forestry Productivity Sites Tropics Weed Control Argentina Pinus taeda
语种	英语
来源机构	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/132694
推荐引用方式 GB/T 7714	Schulte M.L.,Cook R.L.,Albaugh T.J.,et al. Mid-rotation response of Pinus taeda to early silvicultural treatments in subtropical Argentina[J]. Forest Ecology and Management,2020,473.
APA	Schulte M.L..,Cook R.L..,Albaugh T.J..,Allen H.L..,Rubilar R.A..,...&Carter D.R..(2020).Mid-rotation response of Pinus taeda to early silvicultural treatments in subtropical Argentina.,473.
MLA	Schulte M.L.,et al."Mid-rotation response of Pinus taeda to early silvicultural treatments in subtropical Argentina".473(2020).