DOI: 10.1016/j.foreco.2014.05.021
Scopus记录号: 2-s2.0-84902250136
论文题名: Harvest residue effects on soil organic matter, nutrients and microbial biomass in eucalypt plantations in Kerala, India
作者: Kumaraswamy S. ; Mendham D.S. ; Grove T.S. ; O'Connell A.M. ; Sankaran K.V. ; Rance S.J.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 328 起始页码: 140
结束页码: 149
语种: 英语
英文关键词: Eucalyptus
; Land use
; N-mineralization
; Soil C, N and P
; Soil fertility maintenance
; Tropical plantations
Scopus关键词: Fertilizers
; Forestry
; Land use
; Nutrients
; Soils
; Eucalypt plantations
; Eucalyptus
; Eucalyptus plantations
; N mineralization
; N mineralization rate
; Soil fertility
; Soil microbial biomass
; Tropical plantations
; Harvesting
; anthropogenic effect
; biomass
; harvesting
; microbial activity
; soil microorganism
; soil nutrient
; soil organic matter
; India
; Kerala
英文摘要: Conservative site management practices such as harvest residue retention can potentially convey long term benefits for site sustainability, but they are only practiced to a limited extent in many Eucalyptus plantations in the tropical regions. Burning and/or removal of harvest residues can remove substantial quantities of nutrients, but it is still common practice in many parts of India. We explored the effect of harvest residue retention or removal on soil properties at 4 multi-rotation Eucalyptus plantations in Kerala, India. Soil carbon, N and P content were little influenced by differing harvest residue treatments. Interestingly, soil N mineralization rates were affected only minimally by harvest residue retention at individual sites, however, laboratory incubations demonstrated a significant increase in soil N-mineralization potential with increasing harvest residue additions. Soil microbial biomass was influenced to a lesser extent by harvest residue retention. We conclude that harvest residue retention can help to sustain the soil fertility in subsequent rotations and minimize the loss of nutrients from the sites, but fertilizers are still likely to be an important part of the nutrient management regime for productive plantations. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65852
Appears in Collections: 影响、适应和脆弱性
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作者单位: Kerala Forest Research Institute, Peechi, Thrissur 753006, Kerala, India; CSIRO Ecosystem Sciences, Private Bag 12, Hobart, Tas 7001, Australia; CSIRO Ecosystem Sciences, 147 Underwood Avenue, Floreat, WA 6014, Australia
Recommended Citation:
Kumaraswamy S.,Mendham D.S.,Grove T.S.,et al. Harvest residue effects on soil organic matter, nutrients and microbial biomass in eucalypt plantations in Kerala, India[J]. Forest Ecology and Management,2014-01-01,328