琼东南盆地渐新统——上新统孢粉、藻类记录

本次工作对来自南海北部大陆架地区琼东南盆地LS33-1-1井和LS2-1-1井渐新统—上新统的孢粉、藻类进行了系统研究。通过孢粉分析,确定孢粉植物群,恢复古植被,推测古气候,建立了与气候变化趋势相关的孢粉组合序列。结果显示,研究区内渐新统崖城组、陵水组时期的植被类型是热带、亚热带常绿阔叶林及针叶、常绿、落叶阔叶混交林,气候条件较温凉湿润;中新统三亚组时期植被发展为热带、亚热带常绿阔叶林及常绿、落叶阔叶混交林,气候条件暖而湿润;中新统梅山组时期是气候逐渐变化的过渡期;中新统黄流组的植被类型为亚热带针叶阔叶、常绿和落叶阔叶混交林,气候条件温凉略干燥;上新统莺歌海组山地植被中针叶林或针阔叶混交林多有分布,常绿阔叶落叶阔叶林混交林继续扩大,草本植物空前发展,气候趋于凉干。孢粉组合所反映的渐新世—上新世气候变化特征与全球气候变化趋势具有较好的可比性。通过孢粉、藻类资料对沉积环境进行了初步研究,研究区渐新世以近岸浅海的沉积环境为主,为陆架边缘到内陆架区,中新统梅山组及其以上地层应形成于距岸较远海水较深的浅海环境。     

长江三角洲东缘晚新近纪沉积的孢粉与古环境研究

作者对长江三角洲东缘地区的南汇鹤鸣孔(Hm)、东海1井、高桥G2孔3口钻井晚新近纪地层的孢粉作了研究和对比,划分出了6个孢粉组合带和3个亚带,恢复了本地区植被演替、气候波动的6个阶段:第1阶段为稀疏的针叶、落叶阔叶混交林,反映气候凉冷稍湿;第2阶段为针叶阔叶混交林草地,反映气候温凉略湿;第3阶段为含常绿阔叶树的针叶阔叶混交林,反映气候温和略干;第4阶段为以常绿栎类、栲属、杨梅等为主的常绿阔叶林,反映气候热暖潮湿;第5阶段是以栎、松、禾本科为主的针叶、阔叶混交林,反映气候温暖略干;第6阶段是以落叶栎类、常绿栎类、松为主的落叶阔叶、常绿阔叶、针叶混交林草地,反映气候温暖湿润。这种气候波动与世界性气候变化相一致,为本地区的地层年代划分和对比提供了新的证据,为晚新近纪古植被、古气候、古环境的重建提供了重要的孢粉学资料。     

成都平原4 000aBP以来的孢粉记录与环境变化

成都平原晚全新世以来沉积的泥质层发现丰富的孢粉。根据孢粉成分组合特征和生态类型可划分出5个孢粉组合带,结合剖面上6个14^C测年数据,提出在过去的4000a研究区植被类型及气候环境经历了5个阶段的变化：3800-3600aBP为亚热带常绿阔叶林,气候暖偏湿;3600-3400aBP为含常绿树种的落叶阔叶林,气候温暖湿润;3400-2600aBP为草／湿地,气温下降,环境更潮湿;2600-900aBP为落叶阔叶林,温度又开始逐渐回升,气候温和偏湿;900-300aBP再次变为草／湿地,偏干冷的气候环境。     

山东青东凹陷西部古近纪孢粉组合特征及意义

通过对山东青东凹陷西部古近纪地层孢粉研究,共建立4个孢粉组合:Ⅰ.Ephedripites-Inaperturopollenites-Ulmipollenites minor,Ⅱ.Pinaceae-Ulmoideipites tricostatus-Taxodiaceaepollenites,Ⅲ.QuercoiditeshenriciTaxodiaceaepollenites hiatus,Ⅳ.Alnipollenites-Juglanspollenites-Polypodiaceaes porites。根据与渤海湾地区的孢粉资料对比,确定4个组合的时代分别为早始新世晚期—中始新世早期、中始新世早—中期、中始新世中—晚期、中始新世晚期—晚始新世。该区古近纪植被类型由落叶、阔叶和灌木混交林逐步转变为落叶、常绿阔叶和针叶混交林,古气候经历了干热的亚热带气候到湿热的亚热带气候再到亚热带型温暖气候的变化。沙四段上部到沙三段下部沉积时期是研究区烃源岩最为发育时期。     

陇中黄土高原末次冰盛期以来的植被演替及其气候响应

末次冰盛期以来,地球系统经历了一次从冷到暖完整的气候旋回,是过去全球变化研究的一个重要时段。本文基于陇中黄土高原会宁硝沟剖面河湖相-水下黄土沉积序列的高分辨率地层孢粉记录,探讨该区末次冰盛期以来的植被演替及其气候响应模式,旨在为黄土高原生态环境建设的战略部署提供科学依据,且对进一步探讨区域气候演化机制、预测未来气候环境变化趋势具有重要意义。硝沟剖面的孢粉记录揭示,末次冰盛期以来该区的植被演替过程为:荒漠草原(寒冷的盛冰期)→针叶疏林/森林草原(逐渐增温的冰消期)→针阔叶混交林为主的森林草原→针阔叶混交林(温暖的盛间冰期)→针叶疏林草原→干草原/荒漠草原;相应的气候变化模式为:冷干→较温湿→较暖湿→暖湿→温凉偏干→较冷干。总体来看,末次冰盛期以来,研究区植被对气候环境变化的响应非常敏感,随着气候的冷暖干湿变化,森林/疏林草原带自东南-西北发生多次进退;区域顶极植物群落为中全新世气候最适宜期发育的针阔叶混交林,研究区早中全新世较长时期都有较大面积的针阔叶混交林发育;晚全新世植被退化为干草原/荒漠草原,一方面可能是气候持续变干的自然响应,另一方面可能也与此时强烈的人类活动对自然森林/草原植被的破坏导致的恶性循环有关。     

上海青浦8.5kaB.P.以来植被演变与气候波动

钻孔取自上海青浦县赵巷镇,柱长19.8m,5个14C年龄(AMS测定)年代跨度从13460±60aB.P.到2660±60aB.P,但缺失全新世早期沉积。对15m以上(8.5aB.P.)部分系统采集了35孢粉样品,样品分辩率在150a左右(少数样品除外);通过有序分割并综合图谱特征划分出7个孢粉带和2个亚带,据此恢复和重建了本区8.5kaB.P以来植被变化和气候波动历史。具体结果为与现今气候相比,8.5aB.P.～8.2kaB.P.为冷干期,但气候呈上升趋势,地带性植被为含常绿阔叶树种的落叶阔叶林;8.2kaB.P.～8.0kaB.P.为暖湿期、常绿阔叶林,气候处于峰值,温度高于现今2℃左右,降雨量高于现今400mm左右;8.0kaB.P.～7.6kaB.P.为冷干期、落叶阔叶和针阔混交林,气候处于谷值,温度低于现今2℃左右,降雨量少于现今400mm左右;7.6kaB.P.～6.2kaB.P.为暖湿期、常绿阔叶林或常绿、落叶阔叶混交林;6.2kaB.P.～4.0kaB.P.为温干期、含常绿阔叶树种的落叶林或针阔混交林;4.0kaB.P.～3.0kaB.P.为温凉略湿期、含常绿阔叶的落叶阔叶林;3.0kaB.P.～1.5kaB.P.为暖湿期、常绿阔叶林,但2.6kaB.P.以来又有变冷趋势。 文中还对常绿阔叶木本孢粉与总木本孢粉的比值(E/W)的生态意义进行了讨论。     

东北二龙湾玛珥湖晚更新世晚期植被与环境变化的孢粉记录

东北二龙湾玛珥湖孢粉记录显示,34 ka B.P.以来,该区植被和气候经历了以下变化:34-29.3 ka B.P.,发育山地寒温性针叶林,气候冷湿.29.3-12.6 ka B.P.,该区以寒温性针叶林、桦树林为主,气候转向冷干发展,尤其在20.6-18.7 ka B.P.(LGM)时,表现最为突出.12.6-8.9 ka B.P.,该区植被为针阔叶混交林,气候由冷干向温湿逐渐过渡,8.9-4.6 ka B.P.,为落叶阔叶林,气候温暖湿润.4.6 ka B.P.至今,发育针阔叶混交林,气候向温凉转干方向发展.研究表明,MIS3a阶段,以二龙湾为代表的中国东北东部气候以冷湿为主要特征,而末次冰期对该区的影响直到12.6 ka B.P.以后才结束.     

大小兴安岭泥炭的孢粉记录及演变过程研究

根据３个高位泥炭剖面孢粉分析,揭示大注兴安岭分别于５０００ａＢ．Ｐ．、２７００ａＢ。．Ｐ．以来孢粉组合特征和植物群与气候演变过程。小兴安岭北部山地森林疲宣传早分为２个时期,５０００－３０００ａＢ．Ｐ．桦为主落叶阔叶林;３０００ａＢ．Ｐ．－－现今为红松、云冷杉为主,混有少量桦寒温必殖阔叶混交林。气候由温凉偏干向冷偏湿方向发展大兴安岭北部山地,２７００～１８００ａＢ．Ｐ．以来,已构成针叶林为主（樟子松     

晚更新世以来浙江余姚地区植被变化及人类活动

浙江余姚河姆渡镇7 m钻孔的孢粉记录提供了晚更新世以来的植被变化及其反映的气候变化和人类活动的历史.在全新世海侵之前,研究区发育常绿落叶阔叶混交林.全新世早中期,海侵发生,植被由亚热带针阔叶混交林发展为常绿落叶阔叶混交林,碳屑和禾本科(≥35/μm)花粉的增高说明,可能在河姆渡文化之前,研究区已经有人类活动.7 cal.kyr BP之后,高含量的禾本科(≥35 μm)花粉表明钻孔点的临近地区有水稻种植.亚热带与温带乔木花粉的比值(sub/tem)显示,在8 cal.kyr BP之前的海侵期间,浙江余姚地区气候最温暖湿润;7.5-5.86cal.kyr BP期间,温度低于海侵期但是仍然属于全新世暖期,温度高于现在;5.86 cal.kyr BP之后,温度下降;4cal.kyr BP之后温度进一步下降,接近现在.     

唐古拉山地区渐新世孢粉植物群及其古植被、古气候

唐古拉山地区广泛出露早新生代陆相地层,较好地记录了青藏高原北部新生代地质构造演化与古环境变迁的过程.通过在该区1:25万地质调查对雅西措组上段进行孢粉分析表明,孢粉组合以裸子植物花粉为主要成分,地质时代为早-中渐新世.在此基础上划分了3个孢粉植物群-气候期,当时植被是以松科植物为主组成的针叶林植被,从早期到中期喜湿热的蕨类植物和落叶阔叶树种增多;气候从凉爽湿润的南温带→半湿润偏干的北亚热带→偏干的南温带的转变.     

Late-Glacial and Postglacial Vegetation and Associated Environment in Jianghan Plain

Pollen percentage and influx diagrams were prepared from two cores in Jianghan Plain, and studied by means of Fuzzy cluster and radiocarbon dating. This paper reports that there was a cool-temperate evergreen coniferous forest in late-glacial epoch, representing that the climate was cold and wet. In Holocene, the hypsithernaal interval took place about 9100–3500 year B. P. and the maximum was about 8000 year ago. At that time, the vegetation, was that of an evergreen and deciduous broad-leaf mixed forest, and the climate was warmer and damper than that of present. It also shows that the history of vagetational development and climate chenges in this area in the past 21900 years can be divided into five stages: (1). During 21000--10000 year B. P., the vegetation was one of the cool-temperate evergreen coniferous forest, dominated by Abies. The climate was cold and wet. (2) During 10000–9100 year B. P., the vegetation was that of the coniferous and deciduous broad-leaf mixed forest, consisting of Pinus. Quercus, Ulmus and Liquidambar, with a mild and cool climate. (3) During 9100–3500 year B. P., the mixed forest of evergreen and deciduous broad-leaf was predominant, consisting of Cyclobalanopsis, Fagus, Castanopsis, Castanea, Pterocarya, Quercus and Ulmus. The palaeoecological environment was warm and damp. (4) During 3500–2400 year B. P., there was deciduous broad-leaf, consisting of Quercus, Pterocarya, Liquidambar. and Pinus. The climate was droughter and cooler than that of stage(3). (5) During 2400 year B. P. to present, the broad-leaf forest, consisting of Quercus, Fagus, Liqui-dambar and Castanea, was dominant. The climate was warm and damp.     

亚热带常绿阔叶林和暖温带落叶阔叶林叶片热值比较研究

植物干重热值(GCV)是衡量植物生命活动及组成成分的重要指标之一,反映了植物光合作用中固定太阳辐射的能力。利用氧弹量热仪测定了亚热带和暖温带两个典型森林生态系统常见的276种常见植物叶片的干重热值,探讨了亚热带和暖温带植物热值分布特征,以及不同生活型、乔木类型间植物热值的变化规律。实验结果发现:亚热带常绿阔叶林和暖温带落叶阔叶林叶片热值的平均值分别为17.83 k J/g(n=191)和17.21k J/g(n=85),整体表现为亚热带植物暖温带植物。不同地带性植被的植物叶片热值在不同生活型间表现出相似的规律,其中亚热带常绿阔叶林表现为:乔木(19.09 k J/g)灌木(17.87 k J/g)草本(16.65 k J/g);暖温带落叶阔叶林表现为:乔木(18.41 k J/g)灌木(17.94 k J/g)草本(16.53 k J/g);不同乔木类型间均呈现常绿乔木落叶乔木、针叶乔木阔叶乔木的趋势。落叶阔叶乔木表现为亚热带暖温带,而常绿针叶乔木则呈现亚热带暖温带的趋势。此外,我们对于两个分布区域内的4种针叶树种叶片热值进行了比较,发现华北落叶松(19.32 k J/g,暖温带)杉木(19.40 k J/g,亚热带)马尾松(19.82 k J/g,亚热带)油松(20.95 k J/g,暖温带)。亚热带常绿阔叶林和暖温带落叶阔叶林植物热值的特征及其变化规律,为森林生态系统的能量流动提供了理论基础。     

云贵高原抚仙湖近13300年的花粉/炭屑记录*

抚仙湖是云贵高原著名的断陷深水湖,其沉积物蕴藏着流域地质历史时期丰富的环境信息。对钻取自该湖的900cm 湖泊沉积物岩芯进行花粉/炭屑分析及花粉数据的主成分分析表明,抚仙湖流域的植被、气候与火灾在过去的13 300年经历了5个阶段的变化：(1)13 300—10 400cal．a BP,植被以松林为主,伴有山地暗针叶林和常绿阔叶林,表明该时期气候较为冷湿,森林火灾多发,在后期随着温度和湿度的降低,森林火灾愈加频繁。(2)10 400—5 700cal．a BP,松林收缩,常绿阔叶林扩张,出现一定数量的落叶阔叶林,显示该时期气候偏暖偏干;此阶段早期随着气候变暖变干森林火灾的发生延续上阶段高发的状态,直到9 500cal．a BP后随着湿度的增加森林火灾明显减少。(3)5 700—1 800cal．a BP,松林变化较小,常绿/落叶阔叶林比重增大,首次出现了暖热性的枫香林,显示该时期暖湿的气候特征,火灾发生频率低。(4)1 800—500cal．a BP,松林扩张,阔叶林收缩,本阶段后期草本植被比重开始增加,显示该时期气候相对冷干,森林火灾发生频率较高。(5)500cal．a BP至今,松林收缩,落叶阔叶树种增多,草本植物花粉明显增多,显示该时期气候温凉偏干,森林火灾发生频率降低。     

山东植物区系的演变和来源

1　现代植物区系山东省位于我国东部、黄河下游 ,北濒渤海 ,东临黄海 ,地理范围介于北纬 34°2 3′～38°2 4′,东经 1 1 4°4 8′～ 1 2 2°4 3′之间。全省总面积为 1 5.72万 km2 ,占全国总面积的 1 .6%。属暖温带季风气候 ,沿海比较湿润 ,地带性植被主要是暖温带落叶阔叶林和松、栎类针阔叶混交林。山东省在中国植物区系的分区地位隶属于泛北极植物区、中国 -日本森林植物亚区、华北植物地区 [1 ]。据最近研究统计 ,现有野生维管植物 1 47科、61 4属 ,约 1 547种 (包括变种 ,下同 )。其中蕨类植物 2 4科 39属 1 0 5种 ,裸子植物 3科 3属 …     

Pattern of changes in species diversity,structure and dynamics of forest ecosystems along latitudinal gradients in East Asia

We examined effects of seasonality of climate and dominant life form (evergreen/deciduous, broad-leaf/coniferous) together with energy condition on species diversity, forest structure, forest dynamics, and productivity of forest ecosystems by comparing the patterns of changes in these ecosystem attributes along altitudinal gradients in tropical regions without seasonality and along a latitudinal gradient from tropical to temperate regions in humid East Asia. We used warmth index (temperature sum during growing season, WI) as an index of energy condition common to both altitudinal and latitudinal gradients. There were apparent differences in patterns of changes in the ecosystem attributes in relation to WI among four forest formations that were classified according to dominant life form and climatic zone (tropical/temperate). Many of the ecosystem attributes—Fishers alpha of species-diversity indices, maximum tree height and stem density, productivity [increment rate of aboveground biomass (AGB)], and population and biomass turnover rates—changed sharply with WI in tropical and temperate evergreen broad-leaved forests, but did not change linearly or changed only loosely with WI in temperate deciduous broad-leaved and evergreen coniferous forests. Values of these ecosystem attributes in temperate deciduous broad-leaved and evergreen coniferous forests were higher (stem density was lower) than those in tropical and temperate evergreen broad-leaved forests under colder conditions (WI below 100°C). Present results indicate that seasonality of climate and resultant change in dominant life form work to buffer the effects of energy reduction on ecosystem attributes along latitudinal gradients.     

Characteristic and representativeness of the vertical vegetation zonation along the altitudinal gradient in Shennongjia Natural Heritage北大核心CSCD

Aims Mountains contain broad environmental gradients, which are to be an outstanding universal value representing significant on-going ecological and biological processes in the evolution and development of zonal vegetation along the elevation gradients. Exploring the biological and ecological value of the vegetation zonation along the elevation gradients of Chinese mountain natural heritage site is important for biodiversity conservation and management. Methods Based on the community survey data of the six vegetation zonation along the elevational gradients in Shennongjia, the global land use dataset, and the literature data of the communities along the altitudinal gradients of other natural heritage sites and the nominated world natural heritage sites in Oriental Deciduous Forest Biogeographic Province by Udvardy, we explored the outstanding universal value of the zonal vegetation along the altitude gradients by the methods of spatial analysis. Important findings Shennongjia heritage site preserves the intact vegetation zonation of the typical Oriental Deciduous Forest Biogeographical Province in the Classification of the Biogeographical Provinces of the World by Udvardy, including evergreen broad-leaved forests (South Slope of the Heritage Site), evergreen deciduous broad-leaved mixed forests, deciduous broad-leaved forests, coniferous and broad-leaved mixed forests, coniferous forests and subalpine shrub and meadow along the elevation gradients. The altitudinal zonation of vegetation in the Shennongjia heritage site represented a variety of bio-ecological processes, such as the turnover of the dominant trees along the altitudinal gradients, and is an outstanding example of the ongoing ecological processes occurring in the development of intact subtropical mixed broadleaved evergreen and deciduous forest in the Northern Hemisphere. © 2018 Editorial Office of Chinese Journal of Plant Ecology. All Rights Reserved.     

Characteristic and representativeness of the vertical vegetation zonation along the altitudinal gradient in Shennongjia Natural Heritage

Aims Mountains contain broad environmental gradients, which are to be an outstanding universal value representing significant on-going ecological and biological processes in the evolution and development of zonal vegetation along the elevation gradients. Exploring the biological and ecological value of the vegetation zonation along the elevation gradients of Chinese mountain natural heritage site is important for biodiversity conservation and management.Methods Based on the community survey data of the six vegetation zonation along the elevational gradients in Shennongjia, the global land use dataset, and the literature data of the communities along the altitudinal gradients of other natural heritage sites and the nominated world natural heritage sites in Oriental Deciduous Forest Biogeographic Province by Udvardy, we explored the outstanding universal value of the zonal vegetation along the altitude gradients by the methods of spatial analysis.Important findings Shennongjia heritage site preserves the intact vegetation zonation of the typical Oriental Deciduous Forest Biogeographical Province in the Classification of the Biogeographical Provinces of the World by Udvardy, including evergreen broad-leaved forests (South Slope of the Heritage Site), evergreen deciduous broad-leaved mixed forests, deciduous broad-leaved forests, coniferous and broad-leaved mixed forests, coniferous forests and subalpine shrub and meadow along the elevation gradients. The altitudinal zonation of vegetation in the Shennongjia heritage site represented a variety of bio-ecological processes, such as the turnover of the dominant trees along the altitudinal gradients, and is an outstanding example of the ongoing ecological processes occurring in the development of intact subtropical mixed broadleaved evergreen and deciduous forest in the Northern Hemisphere.     

四川小寨子沟自然保护区大熊猫生境植物群落结构特征

通过沿海拔梯度的系统调查,对小寨子沟自然保护区大熊猫生境的植物群落种类组成和结构进行了初步研究。结果表明:(1)小寨子沟大熊猫生境的植被类型有2种:阔叶林和针叶林;(2)小寨子沟自然保护区内分布有青川箭竹、缺苞箭竹、华西箭竹、冷箭竹等多种箭竹,这些作为大熊猫食料的箭竹广布在各种植被类型中,尤其是针阔混交林和亚高山针叶林;(3)大熊猫对生境的群落结构有较广的适宜性,阔叶林、针阔混交林、亚高山针叶林均可作为它的适宜生境;(4)小寨子沟自然保护区内的植被类型是随海拔的升高而自然过渡的,呈现出受人类活动影响较小的自然状态。     

On the Evolution of the Palynoflora and Climatic Environment During Late Pleistocence in Tengger Desert,China

Palynoflora studies on the Duantouliang section, located at 39º40'N, 103º55'E in Northwestern Tengger Desert, China showed that, based on the spore-pollen assemblages, the major vegetation and climatic environment between 42 000 to 23 000 a BP could be divided into the following different periods: Ⅰ. From 42 000 to 38 000 a BP, the spore-pollen assemblages displayed that the mixed conifer/deciduous broad-leaved forests developed on the mountain and its foothill regions where the bare Gobi-desert are at present; At that time, Populus and Salix forests and grassland surrounded the Paleaolake, the climate condition was much warmer and humid than today; Ⅱ. From 38 000 to 37 000 a BP, the climate was warm and moist, it was the most suitable period for the plant growth, the studied area was dominated by the temperate and warm-temperate mixed broad-leaf deciduous and needleleaf forest, there was meadow spreaded on the river sides and lake beaches; Ⅲ. From 31 000 to 30000 a BP, the needleleaf forests and cold-temperate Salix oritrepha shrubs were flourishing, and the climate at that time was relatively cold;Ⅳ. From 30000 to 28000 a BP, the temperatures began increasing, the high lake levels was formed during this time, and the vegetations were meadows and swamps; V. From 28 000 to 23 000 a BP, temperate Cupressaceae and Betula mixed conifer/deciduous forests grew on mountain and foothill region, grassland developed on plain areas, Salix was on lake and river sides. This indicates a warm and moist climate condition but it was drier than the earliest period.     

南亚热带典型森林演替类型粗死木质残体贮量及其对碳循环的潜在影响

森林生态系统中的粗死木质残体(Coarse woody debris, CWD)不仅能够为其它生物提供生境,维持森林结构,而且对生物地球化学循环起着不可忽视的作用,CWD作为森林生态系统中重要的结构和功能元素,已经引起广泛关注。然而,华南地区典型亚热带森林生态系统中CWD的结构和功能方面的研究很少。该文报道了鼎湖山自然保护区内典型南亚热带森林生态系统中CWD的贮量及其特征,所选择的森林包括马尾松(Pinus massoniana)林、针阔叶混交林和季风常绿阔叶林,它们分别代表该气候区域内处于森林演替早期、中期和后期3个阶段的森林类型。其中马尾松林和针阔叶混交林都起源于20世纪30年代人工种植的马尾松纯林,由于长期受到包括收割松针、CWD和林下层植物等在内的人为活动的干扰,到2003年调查时马尾松林仍属于针叶林;而混交林样地自种植之后就未受到人为活动的干扰,自然过渡为针阔叶混交林类型。人为干扰对马尾松人工林的结构和功能产生了巨大的影响,马尾松林的生物量仅为针阔叶混交林生物量的35%。组成马尾松林、针阔叶混交林和季风常绿阔叶林CWD的树种数量分别为7、18和29;马尾松林中几乎没有CWD存在(贮量仅为0.1 Mg C·hm^-2),针阔叶混交林CWD的贮量为8.7 Mg C·hm^-2,季风常绿阔叶林CWD的贮量为13.2 Mg C·hm^-2,分别占地上部分生物量的9.1%和11.3%;针阔叶混交林和季风常绿阔叶林中只有将近10%的CWD以枯立的方式存在。该区域内CWD的分解速率较快,在区域碳循环中将扮演重要角色,保留林地中的CWD是维持本区域森林生产力和森林可持续管理的重要举措。