带状采伐毛竹林恢复的质量特征研究

以安徽省黄山区毛竹林样地内2018年春笋和新竹为研究对象,以传统择伐林为对照(CK),设置4个梯度的采伐强度,分别为3m采伐带(D1)、6m采伐带(D2)、9m采伐带(D3)和12m采伐带(D4),分析带状采伐后毛竹林主要生产力指标(春笋数量、新竹数量、胸径和生物量等)的差异,探讨不同强度带状采伐方式对毛竹林恢复更新的影响程度,为毛竹林合理带状采伐提供理论依据。结果表明:(1)4种带状采伐处理单位面积发笋数量均大于对照,且随采伐强度增加,单位面积发笋数量呈现增加的趋势;较高采伐强度(9m和12m采伐带)下单位面积退笋数量和退笋率比采伐强度较低处理(3m和6m采伐带)和CK更低;单位面积成竹数量和成竹率以较高采伐强度(9m和12m采伐带)处理下相对较高。(2)4种带状采伐处理的新竹平均胸径均小于对照,较高采伐强度(9m和12m采伐带)下新竹平均胸径显著小于母竹,林地中小径级新竹比例增加,且新竹胸径与采伐带边距呈负相关关系。(3)4种带状采伐处理下单位面积新竹地上生物量均小于对照,表现为CK>D3>D4>D2>D1。研究认为,毛竹林恢复的质量特征对不同强度带状采伐措施存在响应差异,6~9m采伐带的毛竹林恢复能力较强,但毛竹林带状采伐后恢复是一个周期性过程,需要综合考虑不同强度带状采伐措施对新竹质量影响的长期效应。     

桂东南柳杉人工林碳氮储量及其分配格局

以广西六万林场31年生3种密度柳杉(Cryptomeria fortunei)人工林为对象,对其碳、氮储量以及碳、氮分配格局进行研究。结果表明:低、中、高3种密度的柳杉人工林生态系统碳储量分别为355.72、417.21和378.71t.hm-2,氮储量分别为17.91、22.13和19.99t.hm-2,均表现为中密度﹥高密度﹥低密度;低、中、高密度植被层碳储量分别为127.71、101.98和100.12t.hm-2,分别为土壤层碳储量的56.01%、32.35%、35.94%,表现为低密度﹥中密度﹥高密度;植被层氮储量分别为1048.85、674.26和705.69kg.hm-2,为土壤层氮储量的6.22%、3.14%、3.66%,则表现为低密度﹥高密度﹥中密度。充分说明桂东南柳杉人工林生态系的碳、氮储量受林分密度的影响,且碳、氮储量主要分布在土壤层。     

带状采伐对毛竹非结构性碳与生物量分配的影响

通过研究带状采伐对春笋和新竹非结构性碳与生物量分配格局的影响,探究毛竹林带状采伐后新竹生长状况、适应策略及恢复潜力。本文以带状采伐毛竹林3种恢复径级(大、中、小)的新竹为研究对象,以择伐样地新竹为对照,分析了各恢复状态(径级)新竹的器官生物量分配格局及春笋和新竹的非结构性碳水化合物(NSC)含量差异。结果表明:择伐林新竹和采伐带大径级新竹地上各器官生物量分配比例为竹秆(大于70%)竹枝(10%～20%)竹叶(低于10%);小径级新竹竹叶比例显著增大,达45.1%,其次为竹秆32.9%,竹枝占地上总生物量22%。带状采伐林春笋NSC含量在生长后期明显低于对照择伐林春笋(P0.05);同时,带状采伐3种径级新竹各器官中NSC含量亦均低于择伐林新竹,各器官间,NSC含量大小顺序均表现为竹叶竹鞭竹枝竹秆竹蔸蔸根。带状采伐后,采伐带新竹地上各器官生物量分配格局与对照择伐林出现了较大差异,各器官NSC含量较对照林新竹总体呈现降低趋势,但采伐带小径级新竹枝叶生物量比例增大且NSC含量较高,表现出克隆植株毛竹在高强度采伐后的自我适应策略。     

采伐木对森林碳储量的影响

森林是陆地生态系统中最大的碳库。在全球变暖背景下,有关林业管理对森林碳库的影响引起各国科学家的日益关注。目前国内大多数文献都将森林采伐木碳库视为当年排放,而实际上采伐木能长时间储存碳。本文根据利用方式和采伐习惯,将采伐木按使用方式分为:1)DBH≤6cm为采伐剩余物置于林内;2)DBH>6cm为实木产品和纸制产品。以长白山林区典型地带性植被阔叶红松林为对象,通过调查采伐前后乔木组成的变化,根据采伐木碳库实际排放情况,研究了采伐前后森林碳储量的动态变化。结果表明:留于林内采伐剩余物为1.1tC.hm-2,排放速度由大变小,全部排放时间80年;实木产品碳储量为20.56tC.hm-2,前80年累计排放20.07tC.hm-2(97.71%);纸制产品为3.63tC.hm-2,前7年累计排放3.45tC.hm-2(95.13%)。若将采伐木碳库视为当年排放,则碳库采伐后20年才能达到采伐前的水平;而考虑采伐木碳库实际排放速率,碳库储量则一直大于采伐前水平。因此,将采伐木碳库实际排放列入考虑,有利于合理估算我国森林碳储量,对正确评价我国森林碳汇功能具有积极意义。     

间伐对杉木人工林碳储量的长期影响

间伐改变了林分环境,影响林木生长及碳储量,准确评估间伐后人工林碳储量变化对碳汇林业的发展具有重要意义.在浙江开化采用下层间伐法,开展了3种间伐处理(对照、中度和强度间伐)对22年生杉木人工林碳储量及其组分分配影响的研究.强度间伐(总间伐强度50%)和中度间伐(总间伐强度35%)均在第7年和第14年进行共计2次间伐,对照在林木生长中期(第14年)进行1次轻度间伐(间伐强度15%).结果表明： 树干碳储量的比例随间伐强度增大而增加,树枝、叶和根碳储量的比例则略有降低,表明间伐有利于树干碳储量的累积.中度和强度间伐处理杉木人工林乔木层碳储量随间伐强度增加而减小,碳储量分别为对照的89.0%和83.1%.第1次间伐后2 a乔木层碳储量显著减少,第2次间伐后8 a,间伐处理乔木层碳储量恢复速率较快,强度间伐乔木层碳储量增量接近对照.林下植被层、凋落物层和土壤层碳储量在不同间伐处理间差异不显著.对照、中度和强度间伐杉木人工林系统总碳储量分别为169.34、156.65和154.37 t·hm^-2,不同间伐处理间差异不显著.可见,试验区杉木人工林间伐15 a后不会导致生态系统总碳储量降低.     

花吊丝竹立竹构件及生物量关系的研究

对大型优良丛生竹花吊丝竹(Dendrocalamus minor var.amoenus)1～4 a生的立竹构件与生物量的关系进行了研究.结果表明:立竹胸径与其他立竹构件间达显著(P<0.05)或极显著相关(P<0.01),立竹胸径与立竹全高(R~2=0.7804,R_(adj)~2=0.7682,F=63.9525,P<0.0001)、立竹枝下高(R~2=0.5017,R_(adj)~2=0.4741,F=18.13,P=0.0005)均呈线性关系,与立竹平均壁厚率呈二次多项式关系(R~2=0.7728,R_(adj)~2=0.7559,F=45.9109,P<0.0001);立竹胸径、立竹全高均与器官生物量呈极显著正相关,构建了立竹胸径、立竹全高与器官生物量间的逐步回归模型,模型检验相关参数R~2>0.66,F>15,P<0.0052.1～2 a生立竹器官生物量由立竹胸径、立竹全高决定,3～4 a生立竹器官生物量由立竹胸径决定.     

气候变化、林火和采伐对大兴安岭森林碳储量的影响

大兴安岭林区林火发生的频率受气候变化的影响将会增加,可能会增加该地区森林生态系统碳损失.本研究通过耦合森林生态系统模型和森林景观模型以模拟未来百年大兴安岭森林碳储量动态变化,量化气候变化、林火和采伐对森林碳储量的影响.结果表明: 虽然采伐和林火会抵消相当一部分由气候变化增加的碳储量,但气候变化仍然能够增加大兴安岭森林碳储量.未来100年该地区森林地上和土壤有机碳储量将会分别增加9%～22%和6%～9%.短期(0～20年)气候变化对大兴安岭森林碳储量的影响大于同期林火的影响,中期(30～50年)和长期(60～100年)气候变化对森林碳储量的影响小于林火和采伐的影响.由于未来大兴安岭地区气候变化及其林火干扰存在不确定性,导致未来该地区森林碳储量存在较大的不确定性.未来100年大兴安岭森林地上碳储量和土壤有机碳储量不确定性分别为12.4%～16.2%和6.6%～10.4%.为准确估算我国北方森林生态系统碳储量,需要考虑种子传播、林火和采伐的影响.     

浙江省竹林地上碳储量的时空动态模拟及影响因素

竹林具有高效的固碳能力,在应对全球气候变化中扮演重要角色.然而,目前大尺度竹林碳储量估算误差大,导致竹林碳储量时空格局存在较大的不确定性.本研究以浙江省为例,耦合遥感数据和BIOME-BGC生态系统过程模型模拟1984—2014年浙江省竹林地上碳储量,并利用森林资源清查数据进行精度验证,分析浙江省竹林地上碳储量时空格局以及环境因子对竹林地上碳储量的影响.结果表明: 模拟得到的竹林地上碳储量精度较高,平均相关系数(r)、均方根误差(RMSE)和相对偏差(rBIAS)分别达到了0.75、7.24 Mg C·hm^-2和-2.57 Mg C·hm^-2,全省竹林地上碳储量总体呈上升趋势,碳密度在13.10～17.14 Mg C·hm^-2,总碳储量在9.94～17.19 Tg C,其中,竹林地上碳储量高值区域主要分布在安吉、临安、龙游等竹产业发达地区.竹林地上碳储量的变化与温度、降水、辐射、CO₂浓度、大气N沉降5个环境因子显著相关,降水量和温度与碳储量的偏相关系数较大.     

河北塞罕坝樟子松人工林生长及碳储量的变化

樟子松(Pinus sylvestris var.mongolica)作为华北地区重要的造林树种,其生长及固碳特征的研究对樟子松人工林经营有着重要的意义。该文通过2006–2016年10年的定点观测,研究河北省塞罕坝林场樟子松人工林的生长和固碳特征。结果表明:10年间樟子松人工林胸径年增长4.19%,树高年增长1.97%;林木死亡率8.39%。该林分2006年和2016年的碳储量分别为59.04和109.64 t×hm~(–2),即10年间固碳量为50.6 t×hm~(–2),固碳年平均增长8.57%。不同径级的林木固碳能力有差异,0–10 cm径级的林木总株数占39.1%,但固碳量仅占8.3%;10–20 cm径级的林木株数占59.2%,固碳量占比达87.1%。结果显示樟子松人工林具有较大的固碳潜力,未来评估林分生态效益与固碳潜力时,应充分考虑林分的结构特征。     

四川长宁毛竹林碳储量与碳汇能力估测

利用生物量法研究了四川长宁毛竹林(Phyllostachys edulis)碳密度、碳储量及其空间分配格局,并对毛竹林碳汇能力进行了估算。结果表明:(1)毛竹立竹各器官的平均含碳率波动范围为462.37—480.68 g/kg,不同龄级毛竹各器官含碳率差异不显著。土壤有机碳含量为15.77 g/kg,不同土层差异极显著;(2)毛竹立竹碳储量为40.92 t/hm2,其中竹竿碳储量所占比例为51.49%,竹杆、竹枝、竹叶地上部分碳储量为26.76 t/hm2,占立竹碳储量的65.39%,地上碳储量为地下碳储量的1.89倍;(3)毛竹林总碳储量为156.57 t/hm2,其中土壤是其最大的碳库,为113.54 t/hm2,占总碳储量的72.52%,立竹碳储量所占比例为26.14%,林下植被碳库最小,为0.52 t/hm2,只占总碳储量的0.33%,可忽略不计;(4)毛竹林年生产量为20.28 t/hm2,年固碳量为9.43 t/hm2,相当于每年固定CO2量34.57 t/hm2,固碳能力较强。     

酸雨对毛竹入侵阔叶林缓冲区根系形态及分布格局的影响

为明确亚热带毛竹与阔叶树根系对酸雨的适应策略,于2017-2018年在浙江省杭州临安天目山国家级自然保护区毛竹入侵阔叶林过渡区开展酸雨模拟试验,选取T1（pH=4.0）、T2（pH=2.5）、CK（pH=5.5）3个模拟酸雨梯度,分析不同强度酸雨作用下毛竹与阔叶树的根系变化。结果表明：T1对阔叶树根系形态指标具有显著的抑制作用（P<0.05）,导致阔叶树根系的总根长、总表面积、总体积及和细根比根长分别下降了39.9%,39.4%,42.3%和16.2%;T2对毛竹和阔叶树根系指标均有显著的抑制作用（P<0.05）,导致毛竹的根系总根长、总表面积、总体积及细根比根长分别下降了41.5%,42.9%,46.4%和15.1%,阔叶树根系分别下降了60.2%,63.3%,61.8%和20.5%。随着酸雨强度的增加,林内根系生物量密度减少,毛竹将更多的根系置于土壤表层。在水平方向上阔叶树根系则随离树距离的增加而逐渐减少,毛竹2-5 mm径级根系生物量在离竹20 cm,离树40 cm和20 cm之间差异显著（P<0.05）。pH、有机质、可溶有机碳、碱解氮、有效磷和速效钾对毛竹的根系可塑性具有显著的影响（P<0.05）。这些结果表明,毛竹在酸雨作用下利用根系形态可塑性实现种群竞争优势。     

模拟酸雨对我国亚热带毛竹林土壤呼吸及微生物多样性的影响

酸沉降造成的土壤持续酸化对毛竹林生态系统碳循环具有重要的影响,为量化酸沉降我国亚热带毛竹林土壤的影响,于2016年在浙江省杭州临安天目山国家级自然保护区毛竹林持续开展了2年野外模拟酸雨淋溶土壤实验,设置pH 4.0(T1)和pH 2.0(T2)两个模拟酸雨处理,以pH 5.8天然湖水为对照(CK),分析酸雨作用下土壤CO_2排放及土壤微生物多样性的变化趋势,并明确毛竹林土壤呼吸、土壤微生物及土壤理化性质三者之间的关系。结果表明:土壤呼吸速率在酸雨作用下经过缓冲期后呈现先促进后抑制的变化,作用强度表现为:T2T1。不同处理的土壤呼吸对温度的敏感性由高到低依次是:T2、CK、T1。PCR-DGGE分析表明,模拟酸雨改变了土壤微生物菌群结构,T2处理抑制了土壤细菌的多样性和丰富度,而T1处理对土壤真菌多样性和丰富度具有促进作用。土壤pH值、有效钾、可溶有机碳、微生物量碳、碱解氮和有效磷对土壤微生物群落结构及土壤呼吸具有显著的影响(P0.05)。综上所述,模拟酸雨能够显著抑制毛竹林的土壤呼吸,并改变土壤微生物群落结构及多样性,这些结果为进一步研究毛竹林土壤生态系统对环境问题响应机制提供理论基础。     

毛竹扩张对杉木林土壤微生物残体碳积累的影响

亚热带毛竹扩张对杉木林土壤微生物残体碳积累的影响及机制尚不清楚。以毛竹向杉木林扩张带(包括杉木林、杉木-毛竹混交林和毛竹林)的凋落物(O层)和不同发生层土壤(A层、B层和BC层)为研究对象，通过分析凋落物和土壤样品中的氨基糖含量来表征微生物残体碳累积效应，并进一步评价微生物在土壤有机碳(SOC)形成过程中的作用。结果表明：毛竹扩张使杉木林凋落物数量和碳含量显著降低，但是凋落物中真菌残体碳(MRC-f)、细菌残体碳(MRC-b)和微生物残体碳(MRC)含量均显著增加；毛竹扩张显著提高了杉木林SOC、MRC-f、MRC-b和MRC含量，而且在毛竹扩张初期(杉木林演替为杉木-毛竹混交林)MRC-f、MRC-b和MRC在SOC中的比例也显著增加，说明毛竹扩张增强杉木林土壤MRC累积效应的同时，也提高了微生物对有机碳的贡献。而毛竹扩张后期MRC-f、MRC-b和MRC占SOC比例并没有显著变化，意味着毛竹扩张后期MRC和植物源残体碳对SOC含量的提升均有贡献，且两者贡献的相对比例保持不变。土壤MRC含量随着剖面深度的加深逐渐下降，而MRC占SOC比值却随着土壤深度的增加而逐渐升高，说明深层土壤中...     

Comparisons of soil‐water content between a Moso bamboo (Phyllostachys pubescens) forest and an evergreen broadleaved forest in western Japan

In Japan, forests of Moso bamboo (Phyllostachys pubescens, an exotic invasive giant bamboo) have naturalized and expanded rapidly, replacing surrounding broadleaved and coniferous forests. To evaluate impacts caused by these forest‐type replacements on the hydrological cycle, soil‐water content and its spatial variability in a Moso bamboo forest were compared with those in an adjacent evergreen broadleaved forest, in a case study of a stand in western Japan (northern Kyushu). The volumetric soil‐water content averaged over depths between 0 and 60 cm was consistently higher in the bamboo stand than that in the broadleaved stand. These results contrast with previous studies comparing the soil‐water content in Moso bamboo forests with that in other forest types. The sum of canopy transpiration and soil evaporation (E) in the bamboo stand tended to be larger than that in the broadleaved stand. Small canopy interception loss was reported in the bamboo forest. Therefore, the large amount of E would counterbalance the small canopy interception loss in the bamboo forest. Differences in soil characteristics between the two stands may be the main factor causing differences in soil‐water content. Spatial variation in soil‐water content in the bamboo stand was larger than that in the broadleaved stand, confirming findings in a previous series of our study. This could happen because the well‐developed root‐system in the bamboo forest enhances preferential flow in the soil. To evaluate the effects of aggressive invasion of alien giant bamboo on the ecosystem functions, we recommend further studies measuring various hydrological components in various Moso bamboo forests.     

毛竹入侵对森林植物和土壤的影响研究进展

植物与土壤稳定性和动态变化反映了森林生态系统在复杂生境下的自我调控和适应能力。毛竹入侵森林生态系统造成的诸多影响已经成为新的研究热点。系统综述了毛竹入侵的机制,以及对植物生存能力、物种多样性、植被碳储量,土壤理化性质以及土壤微生物结构与功能影响的最新研究进展。针对目前研究存在的问题,提出了丰富毛竹入侵管控手段、着重不同类型毛竹—森林临界面演替长期监测、明确毛竹入侵阶段划分、加强毛竹入侵生态后效研究等研究展望。有助于理解森林与毛竹入侵之间的相互作用、森林对毛竹入侵的响应和适应对策,对了解毛竹入侵机制,预测植物和土壤在毛竹入侵后的变化特征具有一定的借鉴意义。     

Changes in chemical characteristics of surface soils in hinoki cypress (Chamaecyparis obtusa) forests induced by the invasion of exotic Moso bamboo (Phyllostachys pubescens) in central Japan

Invasion of contiguous forests by a giant bamboo (Moso bamboo, Phyllostachys pubescens) has the potential to induce changes in the chemical characteristics of soils due to the high growth rate of this species. We evaluated the impact of bamboo invasion into hinoki cypress (Chamaecyparis obtusa) forests on soil properties under varying conditions of shoot density at three study sites (Kanpachi, Seto, and Noguchi) in central Japan. We established three successive quadrats along bamboo invasion (allotted to a bamboo stand, a mixed stand of bamboo and hinoki, and a hinoki stand) at every site. Then, we measured the density and basal area of bamboo and hinoki shoots. Surface soil was sampled from each quadrat to analyze pH, water content, and exchangeable cation contents. The values of soil pH were significantly higher in the mixed stands than the hinoki stands at all sites, showing positive correlations with exchangeable Ca contents in the soil. Exchangeable K and Mg contents in the soil of the mixed stand showed significant differences compared with the hinoki stand only in Seto, but these values in the mixed stand were similar to those in the bamboo stand. This characteristic is consistent with the invasion degree determined from the density ratio of living bamboo culms to living hinoki trunks: Seto > Kanpachi > Noguchi. We conclude that increases in the soil pH due to bamboo invasion into hinoki forests resulted in distinct and sensitive changes in the soil chemistry.     

The responses of Moso bamboo (Phyllostachys heterocycla var. pubescens) forest aboveground biomass to Landsat TM spectral reflectance and NDVI

Bamboo is a special forest type in subtropical regions of china. Its huge biomass and carbon storage and its ecological function play an important role in global carbon sink. In this paper, Moso bamboo (Phyllostachys heterocycla var. pubescens) forest in Anji county, Zhejiang province, China was selected to examine the relationships between Landsat Thematic Mapper (TM) data, and aboveground biomass (AGB, Kg), This research indicates that (1) near infrared (TM4) and mid-infrared bands (TM5,TM7) are more important in explaining Moso bamboo AGB than the visible bands. In particular, TM band5 has higher path coefficient with AGB than any other TM bands, implying its important role in explaining Moso bamboo AGB; (2) the Normalized Difference Vegetation Index (NDVI) has weak correlation with Moso bamboo AGB, however, other vegetable indices such as Perpendicular Vegetation Index (PVI), Enhanced Vegetation Index(EVI), and Soil Adjust Vegetation Index (SAVI) which are related to soil adjustment parameters are significantly correlated with Moso bamboo AGB; (3) the new vegetation index developed in this paper is significantly correlated with Moso bamboo AGB (correlation coefficient is 0.48), and has higher correlation coefficient (R) than any other selected vegetation indices, implying that this new vegetation index can better explain Moso bamboo AGB than any other vegetation indices.     

The responses of Moso bamboo (Phyllostachys heterocycla var. pubescens) forest aboveground biomass to Landsat TM spectral reflectance and NDVI

Bamboo is a special forest type in subtropical regions of china. Its huge biomass and carbon storage and its ecological function play an important role in global carbon sink. In this paper, Moso bamboo (Phyllostachys heterocycla var. pubescens) forest in Anji county, Zhejiang province, China was selected to examine the relationships between Landsat Thematic Mapper (TM) data, and aboveground biomass (AGB, Kg), This research indicates that (1) near infrared (TM4) and mid-infrared bands (TM5,TM7) are more important in explaining Moso bamboo AGB than the visible bands. In particular, TM band5 has higher path coefficient with AGB than any other TM bands, implying its important role in explaining Moso bamboo AGB; (2) the Normalized Difference Vegetation Index (NDVI) has weak correlation with Moso bamboo AGB, however, other vegetable indices such as Perpendicular Vegetation Index (PVI), Enhanced Vegetation Index(EVI), and Soil Adjust Vegetation Index (SAVI) which are related to soil adjustment parameters are significantly correlated with Moso bamboo AGB; (3) the new vegetation index developed in this paper is significantly correlated with Moso bamboo AGB (correlation coefficient is 0.48), and has higher correlation coefficient (R) than any other selected vegetation indices, implying that this new vegetation index can better explain Moso bamboo AGB than any other vegetation indices.     

Comparative Study of Carbon Storage in Different Forest Stands in Subtropical China

Selection and development of tree species with high fixing CO₂ capacity is an increasing problem worldwide. A comparative study on carbon fixation ability of three forest stands was conducted at Linlong Mountain, Li’nan County, Zhejiang Province, China. The results showed that total carbon storage in the ecosystems of Moso bamboo, Chinese fir, and Masson pine stands were 104.83, 95.66, and 96.49 t C/ha, respectively. The spatial distribution of carbon storage in the three ecosystems decreased in the order: soil > tree story > the vegetation under the forests. Carbon storage in the soils under Moso bamboo, Chinese fir, and Masson pine stands accounted for 65.3, 61.4, and 55.6% of the total CSs, respectively. The Moso bamboo forest ecosystem fixed 1.69 and 1.63 times as much C (9.64 t C/ha/year) as the Chinese fir and Masson pine forest ecosystems, respectively.     

桃江县毛竹林生态系统碳储量及其空间分布

采用标准地调查和生物量实测方法,研究了湖南省桃江县毛竹林生态系统生物量、碳含量、碳储量及空间分布格局。结果表明,不同年龄毛竹林生态系统总生物量分别为:28.147、30.889 t/hm~2和57.763 t/hm~2,其中竹林层生物量为20.254、25.036、55.685 t/hm~2,各器官生物量均以竹竿最高,占器官生物量的63.0%以上。不同年龄毛竹各器官碳平均含量为0.466—0.483 g C/g;灌木层碳含量为0.474—0.489 g C/g;草本层为0.472—0.490 g C/g;死地被物层为0.213—0.276 g C/g;土壤层有机碳含量为14.790—34.503 g C/g。各年龄毛竹林生态系统总碳储量分别为131.273、139.089 t/hm~2和167.817 t/hm~2,其中植被层碳储量为13.627—28.419 t/hm~2,占系统总碳储量的9.935%—16.935%;死地被物为0.307—0.420 t/hm~2,占0.234%—0.265%;土壤层为117.339—138.978 t/hm~2,占82.815%—89.799%。毛竹林生态系统碳储量分布格局为:土壤层植被层死地被物层。研究结果可为深入研究毛竹林的碳平衡提供基础数据。