DOI: 10.1016/j.foreco.2013.11.016
Scopus记录号: 2-s2.0-84890074673
论文题名: Atlantic forest tree species responses to silvicultural practices in a degraded pasture restoration plantation: From leaf physiology to survival and initial growth
作者: Campoe O.C. ; Iannelli C. ; Stape J.L. ; Cook R.L. ; Mendes J.C.T. ; Vivian R.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 313 起始页码: 233
结束页码: 242
语种: 英语
英文关键词: Biomass
; Brazilian tree species
; Ecophysiology
; Photosynthesis
; Restoration plantation
; Silviculture
Scopus关键词: Ecophysiology
; Environmental stressors
; Intensive silvicultures
; Plantation establishment
; Silvicultural practices
; Silvicultural treatments
; Silviculture
; Tree species
; Biomass
; Chlorophyll
; Conservation
; Deforestation
; Photosynthesis
; Physiology
; Proteins
; Reforestation
; Restoration
; Weed control
; Ecology
; forest canopy
; growth response
; land degradation
; leaf
; nutrient availability
; pasture
; physiology
; protein
; reforestation
; silviculture
; species richness
; Biomass
; Chlorophylls
; Conservation
; Deforestation
; Ecology
; Photosynthesis
; Physiology
; Plantations
; Proteins
; Reforestation
; Restoration
; Species Identification
; Trees
; Weed Control
; Brazil
英文摘要: Deforestation has led to ecosystem degradation in many tropical regions. Re-establishment of native tree species on degraded land presents challenges due to environmental stressors such as water and nutrient limitations, particularly from weed competition. Ecophysiological studies can help assess responses of native tree species to silvicultural practices and improve our understanding of processes that influence their establishment and growth. Silvicultural treatments borrowed from commercial tree plantations such as greater nutrient applications and complete weed control can improve best silvicultural practices in forest restoration. Two contrasting silvicultural treatments, "traditional" based on common management practices for reforestation of native trees and "intensive" based on commercial plantation silviculture, were evaluated based on tree mortality, biomass, photosynthesis, chlorophyll content, soluble proteins, and nutritional status of 20 native Brazilian species, 2.5years after planting. Intensive silviculture increased tree survival by 20%, showed higher aboveground biomass from 13% to 7-fold and increased photosynthesis of ~20% from 15.8μmolm-2s-1 to 18.7μmolm-2s-1, compared to traditional silviculture. Total soluble proteins were 14% higher with 6.7μgcm-2 in intensive silviculture compared to 5.9μgcm-2 under traditional silviculture. Eighty percent of trees showed greater N content, with a 13% higher average than under traditional silviculture (2.60gm-2 versus 2.92gm-2). Average values of chlorophyll A, B, and total were ~8% higher under intensive silviculture, but not significantly different between treatments. Overall, intensive silviculture provided a positive impact on the restoration plantation. During the initial years of plantation establishment, intensive silviculture methods were effective in leading to significant increases in growth and survival. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66172
Appears in Collections: 影响、适应和脆弱性
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作者单位: Forestry Science and Research Institute - IPEF, Piracicaba, SP 13418-260, Brazil; Departamento de Ciências Florestais, Universidade de São Paulo, USP-ESALQ, Piracicaba, SP 13418-260, Brazil; Department Forestry and Environmental Resources, North Carolina State University, Raleigh, NC 27695-8008, United States; Department of Plant, Soil and Agricultural Systems, Southern Illinois University, Carbondale, IL 62901, United States; Empresa Brasileira de Pesquisa Agropecuária - Embrapa, Brasília-DF 70770-901, Brazil
Recommended Citation:
Campoe O.C.,Iannelli C.,Stape J.L.,et al. Atlantic forest tree species responses to silvicultural practices in a degraded pasture restoration plantation: From leaf physiology to survival and initial growth[J]. Forest Ecology and Management,2014-01-01,313