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不同密度杨农复合系统碳贮量研究
韩冰冰,肖正东,傅松玲,王陆军
0
(安徽农业大学林学与园林学院,合肥 230036;安徽省林业科学研究院,合肥 230031)
摘要:
通过皖北地区不同栽植密度的杨树与小麦、大豆等农作物复合的对比试验,对杨树材积生长量、碳贮量、固碳量及林下作物经济效益等方面综合评价。结果表明,杨树碳贮量、固碳量及材积生长量之间具有紧密的相关性。杨树总碳贮量增多,并不意味着单株林木的碳贮量也增大。在试验密度范围内(4 m×6 m、3 m×8 m和2 m×6 m),以杨树株行距为3 m × 8 m的模式综合效益最高,其单株杨树碳贮量较其他3种模式均有较大提升。
关键词:  碳贮量  杨农复合系统  株行距  综合效益
DOI:
基金项目:“十二五”农村领域国家科技计划课题“黄淮海平原农区高效可持续农林复合系统调控研究” (2011BAD38B0205)资助。
Research on carbon storage of poplar-crop agroforestry ecosystem with different planting densities
HAN Bingbing,XIAO Zhengdong,FU Songling,WANG Lujun
(School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230036;Forestry Research Institute of Anhui Province, Hefei 230031)
Abstract:
This paper comprehensively studied volume growth, carbon storage, and carbon fixation of poplar. Also the author researched economic benefit of crops on the poplar-crop agroforestry system with three different planting densities in northern Anhui Province. The result showed that relationships among volume growth rate, carbon storage and carbon fixation were significant. However, the increase of total Carbon storage had no significant relationship with the increase in individual poplar. Over three different planting spacing such as 4m×6m, 3m×8m, 2m×6m of poplar, the planting spacing of 3m×8m gained the highest comprehensive benefit and made a great improvement on carbon storage of individual poplar than other two patterns.
Key words:  carbon storage  poplar-crop agroforestry ecosystem  planting spacing  comprehensive benefit

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