去除根系和凋落物对滨海沙地3种防护林土壤碳氮库的短期影响

以福建长乐滨海沙地上3种人工林(尾巨桉、纹荚相思、木麻黄)土壤为研究对象,设置去除凋落物、去除根系和对照3种处理,观测1年后分析改变地上、地下有机质输入对沙地土壤碳氮储量、可溶性有机碳(DOC)氮(DON)和微生物量碳(MBC)氮(MBN)的影响。结果表明:不同树种人工林间土壤碳氮储量无显著差异;不同树种人工林间土壤活性碳氮组分差异显著,木麻黄土壤DOC含量显著高于纹荚相思,纹荚相思土壤DON显著高于木麻黄和尾巨桉,尾巨桉土壤MBN显著高于木麻黄和纹荚相思。改变地上地下有机质输入对滨海沙地土壤碳氮库有显著影响且这种影响随树种而异。去除凋落物后纹荚相思、木麻黄土壤碳储量分别下降38.0%、25.1%,氮储量分别下降12.9%、12.5%;去除凋落物后尾巨桉、纹荚相思、木麻黄土壤DOC分别下降37.5%、30.6%、52.9%,MBC分别下降31.0%、56.9%、29.7%,MBN分别下降50.7%、34.9%、42.2%;去除根系后尾巨桉、纹荚相思土壤MBC分别下降57.7%、15.4%。回归分析显示,滨海沙地土壤DOC、MBC与土壤碳储量呈显著正相关,土壤DOC和MBC分别能够解释土壤碳储量变化的47.7%和57.7%。研究表明:树种通过调控地上、地下输入影响可溶性有机碳氮和微生物量碳氮,进而影响土壤碳氮库。     

减雨对南亚热带马尾松人工林凋落物分解的影响

为探究气候变化背景下降雨格局改变对马尾松人工林凋落物分解及养分释放过程的影响,以南亚热带马尾松(Pinus massoniana)人工林为研究对象,设置穿透雨减少50%和不减雨(对照)处理,开展连续观测野外降水控制实验。采用凋落物分解袋法,研究了减雨处理对南亚热带马尾松人工林凋落叶分解速率及养分释放的影响,以及凋落叶分解速率的影响因素。结果表明:凋落叶分解2年后,减雨处理和对照林凋落叶残留率分别为38.09%和38.06%;凋落叶分解过程中碳元素表现为淋溶-富集-释放,而氮元素表现为富集,减雨50%在一定程度上促进了氮的富集,但未达到显著水平。相关分析表明,凋落叶的残留率与氮浓度和月积温呈显著负相关,与碳/氮呈显著正相关。本研究发现,减雨50%并未改变马尾松凋落叶分解速率和养分释放模式,凋落叶的残留率与氮浓度、碳/氮及月积温密切相关。     

南亚热带尾巨桉人工林土壤种子库特征研究

为了解桉树人工林土壤种子库特征,对不同林龄尾巨桉(Eucalyptusurophylla×E.grandis)人工林种子库的储量、垂直分布特征及与林下植被的相似度进行了分析。结果表明,土壤活力种子储量最高的为1～2 a生桉林,显著高于其他林型;其次为3～4 a生桉林和马尾松(Pinus massoniana)林;最低的为杉木(Cunninghamia lanceolata)林,显著低于其他林型。随林龄增加,尾巨桉林土壤种子库储量快速下降。土壤种子库中植物种类最为丰富的是杂木林和马尾松林,显著大于其他林型。随林龄增加,尾巨桉林土壤种子库植物种类先增后降。所有林型中,0～5 cm土壤种子库的密度均显著高于5～10 cm土层。杂木林种子库和林下植被共存植物种类最多,其次是马尾松林,杉木林最少。尾巨桉人工林随林龄的增加,共存植物种数呈先升高后下降趋势,土壤种子库Jaccard (CJ)和Sorensens (CS)相似系数也呈先升后降的趋势。因此,在速生桉人工林经营中适当间种(保留)乡土树种,可增加森林生态系统的生物多样性和生态功能的稳定性。     

马尾松人工林林窗大小对四种凋落叶质量损失和养分释放的影响

马尾松人工林乔木层植物凋落物的分解对林地养分平衡和系统物质循环具有重要意义,并可能受不同大小林窗下微环境差异的影响。采用凋落物袋分解法,以马尾松(Pinus massoniana)人工林人为砍伐形成的7个不同大小林窗(G1:100 m~2、G2:225 m~2、G3:400 m~2、C4:625 m~2、G5:900 m~2、G6:1225m~2、G7:1600 m~2)为研究对象,林下(G0)为对照,研究林窗大小对红椿(Toona ciliata)、桢楠(Phoebe zhennan)、香樟(Cinnamomum camphora)和马尾松4种乡土树种凋落叶质量损失及养分释放的影响。结果显示:1)林窗大小(G0-G7)显著影响林窗中心放置的红椿和桢楠凋落叶N和P释放率、香樟凋落叶失重率和N、P、K释放率以及马尾松凋落叶P和K释放率。相对于林下,中小型林窗(G1-G4)的凋落叶失重率和N、P释放率明显较大,而大型林窗(G6-G7)的凋落叶K释放率明显较大。2)林窗内放置位置显著影响红椿、桢楠和马尾松凋落叶的K释放率及香樟凋落叶的P释放率。红椿和桢楠的凋落叶K释放率从林窗中心到边缘显著减少,而马尾松凋落叶K释放率及香樟P释放率从林窗中心到边缘显著增加。3)4种凋落叶类型中红椿凋落叶分解最快,其分解50%和95%所需时间分别为5.29和23.14个月。上述结果表明,林窗大小和林窗内位置对凋落物质量损失及其养分释放具有显著影响,但影响大小及趋势随物种初始基质质量的差异具有明显变化,研究结果为亚热带低山丘陵区马尾松人工低效林的科学经营及管理提高了一定的科学依据。     

南亚热带红锥和马尾松人工林生长对穿透雨减少的响应

为了预测和评估全球气候变化背景下森林生长和生产力对降水格局变化和季节性干旱的响应,以南亚热带红锥和马尾松人工林为对象,设置穿透雨减少50%和不减雨(对照)处理,开展连续3年(2015-2017年)的模拟试验,研究降雨减少对人工林胸径生长、凋落物量和叶面积指数的影响.结果表明: 与对照相比,穿透雨减少导致红锥2017年胸径增长量显著降低31.8%,而对马尾松无影响;红锥叶面积指数平均降低8.8%,马尾松叶面积指数降低7.2%或者不变;红锥林2015年枝凋落量和2017年凋落物总量分别增加29.6%和35.8%,马尾松林2015年其他树种(除了马尾松以外)叶凋落量显著减少50.7%,而其他凋落物组分无显著变化.短期穿透雨减少对人工林产生了干旱胁迫作用,这种作用存在年际变异和树种差异.     

华南典型人工林凋落物的持水特性

对于华南地区的杉木 (Cunninghamialanceolata) 林、马尾松 (Pinusmassoniana) 林、湿地松 (Pinuselliottii) 林、马占相思 (Acaciamangium) 林和尾叶桉 (Eucalyptusurophylla) 林的凋落物的储量、持水量、持水率和吸水速率进行了研究。结果表明, 杉木林的凋落物的干重 (6.5× 10 3 kg·hm-2 ) 最大, 其次是马尾松林和马占相思林 (5.5× 10 3 kg·hm-2 ), 而湿地松林 (4.1× 10 3 kg·hm-2 ) 和尾叶桉林较小 (4.0× 10 3 kg·hm-2 ) 。凋落物持水量呈现杉木林 >马占相思林 >尾叶桉林 >马尾松林 >湿地松林。各林分凋落物的最大持水量为杉木林 17.9× 10 3 kg·hm-2, 马占相思林 14.8× 10 3 kg·hm-2, 尾叶桉林 14.0× 10 3 kg·hm-2, 马尾松林 10.6× 10 3 kg·hm-2, 湿地松林 9.8× 10 3 kg·hm-2 。尾叶桉林、杉木林、马占相思林、湿地松林和马尾松林的凋落物最大持水率分别为 35 1%、2 74 %、2 6 9%、2 35 %和 191%。凋落物持水量和凋落物持水率随着浸泡时间的增加按照对数方程增加。 5种林分中尾叶桉林的凋落物吸水速率在各浸泡时间后居首位, 杉木林和马占相思林中等, 湿地松林较小, 而马尾松林最小, 各林分的凋落物的吸水速率随浸泡时间的增长按方程Y =a +b·t-1下降。     

模拟降雨减少对马尾松人工林凋落物量及其化学性质的短期影响

为研究气候变化背景下降水格局变化对森林生长和碳固持的影响,2012年在我国南亚热带地区选择广泛分布的马尾松(Pinus massoniana)人工林为研究对象,分别设置3块20 m×20 m的模拟降雨减少50%和对照样地,每个样地随机设置5个距地面40 cm的1 m×1 m的凋落物收集框,2016年1—12月每隔1月收集各样地林冠层凋落物,比较研究减水处理对凋落物组分产量和基本化学性质的短期影响。结果表明:马尾松人工林针叶凋落物量及其所占比例显著高于其他凋落物组分(P0.05),减雨处理对马尾松人工林凋落叶和总量无显著影响(P0.05)。与对照相比,减雨处理分别增加凋落针叶含碳量和凋落果含氮量27.4 g/kg和5.1 g/kg,以及凋落针叶的木质素含量、阔叶纤维素含量和皮半纤维素含量3.9%、5.2%和4.0%(P0.05),但显著降低凋落皮碳、纤维素含量和凋落果的碳氮比(P0.05)。凋落物N、P含量具有协同性,含碳量与木质素含量显著正相关(P0.05)。模拟降雨减少处理初期并未显著改变南亚热带马尾松人工林总凋落物量,但增加了凋落针叶的木质素含量和含碳量。本研究预示短期穿透雨减少可能降低南亚热带马尾松人工林凋落物的分解能力,由此降低马尾松人工林土壤中凋落物源性碳的输入量。     

5种相思树和尾巨桉人工林土壤养分和酶活性特征

为揭示固氮树种土壤养分转化的酶学机制,对固氮树种[厚荚相思(Acacia crassicarpa)、黑木相思(A. melanoxylon)、卷荚相思(A.cincinnata)、大叶相思(A.auriculiformis)和马占相思(A.mangium)]及非固氮树种尾巨桉(Eucalyptusurophylla×E.grandis)人工林的土壤养分含量、酶活性及其相关性进行研究。结果表明,相思林40～60cm土层的pH均高于尾巨桉林;5种相思林土壤各土层的TP、TK含量均低于尾巨桉林,而20～40 cm土层的TC、TN含量均高于尾巨桉林,黑木相思林和马占相思林各土层的有效养分均显著高于尾巨桉林(P0.05)。0～10 cm土层中,相思林的土壤酸性磷酸酶和纤维素酶活性均高于尾巨桉林,大叶相思林的土壤脲酶、蔗糖酶、纤维素酶和芳基硫酸酯酶活性显著高于尾巨桉林(P0.05),卷荚相思林的土壤脲酶、纤维素酶、几丁质酶和淀粉酶活性显著高于尾巨桉林(P0.05)。相关分析结果表明,土壤脲酶、蔗糖酶和几丁质酶活性与AP显著负相关(P0.05),蔗糖酶和纤维素酶活性与NH4+-N显著负相关(P 0.05),脲酶、纤维素酶、芳基硫酸酯酶与土壤TK显著负相关(P0.05),几丁质酶活性与TN含量呈显著正相关(P0.05),土壤淀粉酶活性与NH4+-N呈显著正相关(P 0.05),过氧化氢酶活性与土壤TK含量呈显著正相关。可见,与尾巨桉人工林相比,在我国南方退化山地引种相思树可提高土壤关键酶的活性,对土壤有效养分具有明显改良作用,有利于退化地土壤的生态修复及人工林长期生产力的维持。     

Characteristics of fungal community structure during the decomposition of mixed foliage litter from Pinus massoniana and broadleaved tree species in southwestern China

针叶树凋落物相当顽强且养分含量低,而阔叶凋落物通过增加可降解养分和促进微生物代谢来促进针叶凋落物的分解。马尾松(Pinus massoniana)凋落物和三个阔叶凋落物混合可能会增加真菌分解者的多样性和丰富性,并且会随着阔叶树种的数量和比例而有所差异。我们使用高通量测序技术分析了西南地区马尾松与香椿(Toona sinensis),香樟(Cinnamomum camphora)和檫木(Sassafras tzumu)凋落叶混合分解过程中的真菌群落组成和多样性,共设置35种实验处理。研究结果表明,与单一凋落叶相比,除马尾松+香椿,马尾松+檫木+香椿和马尾松+檫木+香樟组合中马尾松凋落叶占70%-80%以及马尾松+檫木+香樟+香椿组合中香椿凋落叶所占比例较小外,其余混合凋落叶均增加了真菌的多样性和丰富性。其中马尾松+香樟+香椿组合中的7:1:2的真菌多样性和丰富性显著高于其他处理。子囊菌门和担子菌门是最主要的优势门,曲霉属是最丰富的真菌群落属。一针一阔(6:4)和一针两阔(阔叶凋落叶占30%-40%)组合的凋落叶在整个分解过程中均表现出较强的协同作用,并且增加了可分解较难分解物质真菌菌群的相对丰度。可见马尾松+香樟+香椿组合中阔叶凋落物占30%-40%比例时增加了真菌的多样性,促进了针叶凋落物中难分解物质的分解。因此,香椿和香樟可能是构建马尾松混交林潜在的候选阔叶伴生树种。     

亚热带树种转换对林地土壤微生物群落结构和功能的影响

通过分析杉木采伐迹地营造阔叶树种尾巨桉和固氮树种黑木相思人工林后土壤微生物群落组成和酶活性,探讨造林树种转换对于改善杉木林地土壤微生物特性的影响.结果表明: 树种转换对土壤微生物群落组成和酶活性的影响主要局限于0～10 cm土壤层.杉木转换为固氮树种黑木相思后,显著提高了0～10 cm土壤层总脂肪酸含量、真菌、革兰氏阳性细菌、革兰氏阴性细菌和放线菌生物量.主成分分析表明,黑木相思人工林土壤微生物群落组成与杉木和尾巨桉人工林具有显著差异,土壤中革兰氏阳性细菌、阴性细菌和放线菌丰度显著提高.在0～10 cm土壤层,黑木相思人工林土壤纤维素水解酶、乙酰氨基-葡萄糖苷酶和酸性磷酸酶活性均显著高于杉木和尾巨桉人工林.研究表明,杉木转变为固氮树种黑木相思后会显著提高微生物生物量和酶活性,有助于土壤有机质的恢复,加快养分循环过程.     

森林凋落物淋溶中的溶解有机物与紫外-可见光谱特征

对格氏栲(Castanopsis kawakamii)和杉木(Cunninghamia lanceolat)人工林新近凋落物、半分解层(F层)和分解层(H层)凋落物进行室内模拟淋洗实验,研究了凋落物淋溶过程中溶解有机碳(DOC)浓度变化及紫外-可见(UV-Vis.)光谱特征.结果表明,格氏栲和杉木人工林新近凋落物淋出液的DOC浓度较低,F层淋出液的DOC浓度较高;格氏栲凋落物淋出液的DOC浓度基本上随淋溶次数的增加而降低,杉木的则先升后降.淋出液中溶解有机物(DOM)的紫外吸收值均随波长的增加而减小,且UV-Vis.吸收曲线均在200nm附近出现吸收峰,不同来源DOM的E240/E420存在显著差异;同一样品各次淋出液的DOC浓度与E200有很好的线性关系(P2＞0.90),据此,可用E200值估算DOC浓度.     

巨尾桉工业原料林下植物群落学分析

基于群落调查方法,对巨尾桉林下植物进行群落学分析。结果表明:巨尾桉林下植物共有维管束植物57科、124属、154种及变种,以禾本科和菊科的种类占优势;林下植物物种组成较为分散,优势属不明显;种子植物53科划分为6个分布区类型和2个变型,以热带分布科为主;种子植物120个属有14个分布区类型和7个变型,以热带分布属为主,植物区系成分较为复杂。林下植被可分为灌木层和草本层,但是分层现象不明显,草本层植物占优势,偶见有少量的层间植物分布。林下物种丰富度表现为草本层>灌木层;而Simpson指数、Shannon-Wiener指数、Pielou均匀度指数则表现为灌木层>草本层,生境空间异质性及人为干扰活动影响了巨尾桉林下植物组成及分布。     

Genetic mapping in Eucalyptus urophylla and Eucalyptus grandis using RAPD markers.

Two single-tree linkage maps were constructed for Eucalyptus urophylla and Eucalyptus grandis, based on the segregation of 480 random amplified polymorphic DNA (RAPD) markers in a F1 interspecific progeny. A mixture of three types of single-locus segregations were observed: 244 1:1 female, 211 1:1 male, and 25 markers common to both, segregating 3:1. Markers segregating in the 1:1 ratio (testcross loci) were used to establish separate maternal and paternal maps, while markers segregating in the 3:1 ratio were used to identify homology between linkage groups of the two species maps. An average of 2.8 polymorphic loci were mapped for each arbitrary decamer primer used in the polymerase chain reaction. The mean interval size beween framework markers on the maps was 14 cM. The maps comprised 269 markers covering 1331 cM and 236 markers covering 1415 cM, in 11 linkage groups, for E. urophylla (2n = 2x = 22) and E. grandis (2n = 2x = 22), respectively. A comparative mapping analysis with two other E. urophylla and E. grandis linkage maps showed that RAPDs could be reliable markers for establishing a consensus species map. RAPD markers were automatically and quantitatively scored with an imaging analyzer. They were classified into four categories based on their optical density. A fragment intensity threshold is proposed to optimize the selection of reliable RAPD markers for future mapping experiments. Key words : genetic linkage map, Eucalyptus urophylla, Eucalyptus grandis, random amplified polymorphic DNA, RAPD, automated data collection.     

巨桉凋落叶分解对菊苣生长及光合特性的影响

采用盆栽试验,研究了巨桉凋落叶分解初期对菊苣幼苗生长和光合生理特性的影响.试验设置A₁(30 g·pot^-1)、A₂(60 g·pot^-1)、A₃(90 g·pot^-1)和对照（CK）4个凋落叶水平,将各处理的凋落叶分别与12 kg土壤混合后装盆,播种菊苣.待A₃处理植株的第3片真叶完全展开后测定菊苣光合生理指标及相关生长指标.结果表明：巨桉凋落叶分解初期明显抑制了菊苣生物量积累、叶面积的增加及光合色素的合成,且随着凋落叶施入量的增加抑制作用加大;菊苣叶片胞间CO₂浓度增加,而净光合速率、气孔导度和蒸腾速率均显著低于对照;随土壤中凋落叶含量的增加,除CO₂补偿点呈增加趋势外,其他光响应和CO₂响应的特征参数都呈明显下降趋势,并与对照差异显著.巨桉凋落叶分解过程中,其化感物质逐步释放并作用于受体植物,抑制其光合色素合成和光合作用,降低其环境适应能力,从而抑制菊苣的生长.     

甘露糖正向筛选体系在巨尾桉遗传转化中的应用

为了研究甘露糖正向筛选体系在巨尾桉遗传转化过程中的有效性,构建了以6-磷酸甘露糖异构酶（6-phosphomannose isomerase,PMI）为筛选标记的pCAMBIA1301植物表达载体,并将该载体通过农杆菌介导的遗传转化转入木本植物巨尾桉中。将获得的阳性植株通过氯酚红（chlorophenol red,CPR）法及PCR检测,桉树遗传转化的阳性率达到26.09%。另外,通过正交试验优化法,对巨尾桉组培快繁体系建立过程中不同浓度激素配比进行了研究,建立起良好的巨尾桉组织培养再生体系,由甘露糖筛选敏感性测试,获得了巨尾桉筛选临界浓度,蔗糖与甘露糖比例为19∶11,优化了巨尾桉遗传转化体系,为今后巨尾桉组织培养与遗传转化研究提供了重要的参考依据。     

Influence of leaf litter type on the chemical evolution of a soil parent material (sandstone)

The influence of leaves of Quercus suber L. and Eucalyptus globulus Labill. and needles of Pinus pinaster Ait. on a sandstone substrate was assessed through lysimetric studies during a ten-year period at a site in Central Portugal. The decomposition rate of Q. suber leaf litter was similar to that of E. globulus and higher than that of P. pinaster needle litter. The proportion of nitrogen released from the Q. suber leaf litter was higher than that lost from the other organic species. Such a release was proportional to the initial nitrogen content in the substrates. The concentrations of both NH₄-N and NO₃-N were much higher in leachates collected under Q. suber leaf litter than in those collected under the other organic substrates. A similar trend was found in the leachates collected under the mineral substrate influenced by the studied organic substrates. The leachate concentrations of mineral N (especially NO₃-N) were higher from the mineral substrate under Q. suber leaf litter than from this organic substrate itself. The mineral substrate under leaf litter of E. globulus or needle litter of P. pinaster showed an increase in exchangeable base cations and pH values, and a decrease in extractable Al. Conversely, in the substrate with Q. suber leaf litter there was only a slight increase in exchangeable base cations and pH values, and a decrease in extractable Al. These results combined with those obtained in soils under E. globulus plantations indicate that changes found in these soils are due to soil and forest management practices rather than to the decomposition process of the respective of leaf litter.     

Effects of river red gum, Eucalyptus camaldulensis, litter on golden perch, Macquaria ambigua

Aquaria with added river red gum, Eucalyptus camaldulensis , litter became hypoxic, with decreased pH and contained up to 30 mg 1⁻¹ tannin and lignin. Survival of golden perch, Macquaria ambigua , larvae in aquaria treated with a simulated annual litter density of 450 g m⁻² for 72 h was 14·9% for 15-day-old larvae and 0% for 8-day-old larvae. A litter density of 1223 g m⁻² resulted in total mortality for both age groups of larvae. Aeration increased survival of larvae to a minimum of 68·8% in 1223 g m⁻² litter treatments compared to 89·8% in aerated controls and 86·8% in non-aerated controls. A kinetic behavioural assay was used to detect alarm responses in golden perch larvae and juveniles exposed to leachates from river red gum bark, leaves and wood. Eight-day-old larvae exposed to bark and wood leachates (0·001–10 g 1⁻¹) exhibited an initial period of hyperactivity, followed by a concentration-dependent decrease in spontaneous activity. Larvae exposed to leaf leachates displayed only a decrease in spontaneous activity. Four-month-old juveniles exposed to wood leachates were also initially hyperactive, then progressively developed mild hypoactivity at increasing leachate concentrations. Juveniles exposed to wood leachates at 20g 1⁻¹ for 30min suffered 97·5% mortality in 96 h. Wood leachates induced dose-dependent lamellar fusion, epithelial dissociation and necrosis in the gills. The presence of toxic leachates and low oxygen availability in flooded river red gum forests may make these habitats unsuitable as nursery areas for native fish.     

干燥方式对尾巨桉树皮提取物总三萜含量及其杀螺活性的影响

为探讨干燥方式对尾巨桉树皮提取物总三萜含量的影响和其杀螺作用机理,实验以尾巨桉树皮为研究对象,比较鼓风干燥和冷冻干燥两种干燥方式对其树皮乙醇提取物总三萜含量及杀螺活性的影响。结果表明,当乙醇体积分数为60%时,鼓风干燥和冷冻干燥的尾巨桉树皮乙醇提取物中总三萜含量最高,分别为10.81%和13.90%。两种干燥方式得到的尾巨桉树皮乙醇提取物对福寿螺均有较强的毒杀活性,在50mg/L的浓度下处理72h,福寿螺的死亡率分别到达93.1%和100.00%;同时尾巨桉树皮提取物还能显著抑制福寿螺离水上爬,抑制效果优于同浓度下的对照药剂茶皂素(P<0.05)。与空白对照组相比,经鼓风干燥的尾巨桉树皮提取物处理后,福寿螺头足和肝脏的蛋白质含量变化不大(P>0.05);经过冷冻干燥的尾巨桉树皮提取物处理后,福寿螺头足中蛋白质含量显著降低(P<0.05),而肝脏中蛋白质含量无明显变化(P>0.05)。鼓风干燥和冷冻干燥的尾巨桉树皮提取物均可有效抑制福寿螺头足部中LDH、AKP和AST/GOT的活性(P<0.05)以及肝脏中ALT/GPT和AST/GOT的活性(P<0.05)。冷冻干燥的尾巨桉树皮提取物中三萜含量以及杀螺活性均高于鼓风干燥的树皮提取物。     

How to manage degraded monoculture plantations in South China: a perspective from reciprocal litter transplant experiment

Litter decomposition, an important component of nutrient cycling, is often one of the limiting factors for the development of monoculture tree plantations for restoration, and how to improve the litter decomposition rate remains as a major challenge. To help resolve this issue, we developed a mixed-litter transplantation approach to improve the litter decomposition and nutrient cycling in Schima superba, Cunninghamia lanceolata, Eucalyptus urophylla, and Acacia mangium monoculture plantations in China. The monospecific leaf litters of the four species were collected and their possible two-, three- and four-species combinations were transplanted between plantations. We examined the influences of home/away field, litter species richness, and litter composition on litter decomposition during 24 months treatment. A significant effect of litter composition on litter decomposition (Duration?×?Composition effect) was detected in E. urophylla plantation. The influence of litter richness on litter decomposition was significant in A. mangium plantation (Duration?×?Richness effect). The litter of C. lanceolata and A. mangium had a distinct home-field advantage, while the litter of S. superba had a distinct away-field advantage in decomposition. We observed a positive relationship between richness and litter decomposition in C. lanceolate plantation. The effect of Duration?×?Species Interaction on litter decomposition, was significant in E. urophylla plantation, indicating a non-additive effect. Litter decomposition in E. urophylla plantation could be explained by idiosyncratic model, and the rivet model may be appropriate to illustrate the litter decomposition in A. mangium plantation. Finally, since the litter decomposition in degraded A. mangium plantations had a distinct home-field advantage and was significantly affected by litter richness, transplanting mixed litters of neighboring plantations may be beneficial to improve its litter decomposition rate. Transplanting of S. superba litters due to the distinct home-field advantage to neighboring plantations such as E. urophylla plantation whose litter decomposition is significantly affected by litter composition, may be an effective management method for improving litters decomposition.