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4篇 您的检索式:作者名="Guinko"
    题名 作者 年代 出处 被引量
1Carbon and nitrogen enhancement in Cambisols and Vertisols by Acacia spp. in eastern Burkina Faso: Relation to soil respiration and microbial biomass显示文摘Salifou Traoré Lamourdia Thiombiano Jeanne Rasolodimby Millogo Sita Guinko 2006Applied Soil Ecology2006,,3:1
2西非Sudanian热带林地11个树种地上生物量异速生长预测(英文)显示文摘异速生长模型常用于估计陆地生态系统的生物量。许多热带树种总体异速生长关系已经确定,但是,物种特异和区域特异模型较缺乏。本文发展了物种特异异速生长模型来预测11个本地树种地上生物量。基径(11~28cm)、胸径(9-19cm)和树高作为预测变量。从大小不同的(包括最大的)树木个体中取样。在木材收获过程中,通过破坏性取样获取4,754棵树木的生物量作为因变量。本文用逐步多元回归分析结合反向去除程序来发展模型分别预测树木总生物量、树茎生物量、枝干和细枝生物量。所有树种的生物量-植株大小物种特异回归模型相关性均较高。枝干和细枝生物量模型所需预测项和预测关系较少,但是该模型的预测能力要弱于树茎和整株生物量模型。11个树种中,除了刺槐之外,其他树种总的地上生物量和茎干生物量最优方程的R2>0.70;枝干和细枝生物量方程的R2值在0.749(榆绿木)至0.183(刺槐)之间。应用这些模型估计树木可获得性生物量可以避免破坏性取样,有助于实施树种可持续使用。Louis Sawadogo Patrice Savadogo Daniel Tiveau Sidzabda Djibril Dayamba Didier Zida Yves Nouvellet Per Christer Oden Sita Guinko 2010Journal of Forestry Research2010,21,4:0
3西非布基纳法索共和国道路网干扰对路边环境Pteleopsis suberosa更新的影响(英文)显示文摘沿铺面道路和未铺面道路,调查了4种路边环境(缓变区,附近区,中间区和非缓变区)的Pteleopsis suberosa苗木种群结构和其更新机制。沿道路平行线调查了2m×5m的203块样方,记录每个样方内的种苗总数和每个种苗的活枝数。通过评价基部和水平枝芽和挖掘地下根系来确定更新机制。结果表明,在4种路边环境中,单一主干和多主干苗木的总密度及各自密度都有明显的变化(p<0.05)。所有苗木都是无性繁殖而来,根出条占98%,眠芽蘖和萌生各占1%左右。研究表明,铺面道路和未铺面道路缓变区中等水平土壤的干扰可以刺激Pteleopsis suberosa根出条更新;道路类型(铺面和未铺面)对苗木密度没有影响,但对路边立地的P.suberosa种群的萌生能力来说,道路类型是一个重要变量。P.suberosa是一个耐干扰的物种,受道路网干扰后可以通过根出条繁殖。Fidèle BOGNOUNOU Patrice SAVADOGO Adjima THIOMBIANO Mulualem TIGABU Issaka Joseph BOUSSIM Per Christer ODEN Sita GUINKO 2009Journal of Forestry Research2009,20,4:0
4Agroforestry Trees Improve Water Infiltrability in Semi-arid Tropical Parklands in Burkina Faso显示文摘Maintaining appropriate levels of soil infiltrability is important for avoiding undesirable levels of surface runoff and erosion and for maintaining adequate rates of soil and groundwater recharge.This study was conducted with the aim of investigating the effects of Faidherbia albida(apple-ring acacia)and Vitellaria paradoxa(shea butter tree)trees and additions of inorganic fertilizer,leaves and compost on soil infiltrability in two agroforestry parkland systems in the western part of Burkina Faso.Infiltrability was measured before tilling both under and outside canopies of these trees,using tension disc and double-ring infiltrometers.The results show that infiltrability was 33%higher on average under than outside canopies in both agroforestry parkland systems.The compost,leaves and inorganic fertilizer did not improve infiltrability significantly during the study period.More than 75%of the infiltrability estimates obtained using ring infiltrometers outside the canopies were lower than 40 mm/h.In contrast,less than 10%of those obtained from under canopies were lower than this.This could have highly significant effects on run-off,erosion and recharge since rain intensity measurements collected over three years at 30 min intervals showed that up to 35%of the annual precipitation fell with intensities≥40 mm/h.The study demonstrates the potential of improving infiltrability and reducing surface runoff by managing trees appropriately in agroforestry systems in semi-arid tropics.Zomboudré Georges Ilstedt Ulrik Gnankambary Zacharia Nyberg Gert SoméLéopold Guinko Sita Malmer Anders 2018Journal of Agricultural Science and Technology(A)2018,8,5:0
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