森林资源资产负债表若干问题研究
作者:
袁继安;伏珂颖;田大伦
期刊:
林业经济 ,2019年(05):66-70 ISSN:1673-338X
作者机构:
1. 中南林业科技大学商学院;2. 南方林业生态应用技术国家工程实验室;3. 中南林业科技大学生命科学与技术学院
关键词:
森林资源资产负债表;森林资源负债;森林资源净资产;自然资源资产离任审计
摘要:
文章以《编制自然资源资产负债表试点方案》为依据,以森林资源为对象,研究了森林资源资产负债表的特点和作用,讨论了森林资源负债的核算方法;以SEEA-2012和SNA-2008框架建议为依托,设计了账户式森林资源资产负债表,分析了在目前试点阶段编制森林资源资产负债表的主要困难及基本原因,并提出相应的解决办法。
语种:
中文
展开
湖南省优势树种森林资源资产负债表编制研究
作者:
袁继安;宁晨;田大伦
期刊:
生态学报 ,2019年39(19):7283-7294 ISSN:1000-0933
作者机构:
[田大伦; 袁继安] 中南林业科技大学生命科学与技术学院,长沙410004;[袁继安] 中南林业科技大学商学院,长沙410004;中南林业科技大学生命科学与技术学院,长沙,410004;[田大伦] 南方林业生态应用技术国家工程实验室,长沙410004;[宁晨] 中南林业科技大学
关键词:
湖南省;优势树种森林资源;森林资源核算;资产负债表;总账平衡表
摘要:
选取湖南省2016年优势树种森林资源为研究对象,核算了林地、林木、生态服务、森林资源负债与净资产的价值。根据核算结果编制了森林资源资产负债表。结果表明,2016年优势树种林地总价值4938.00亿元,较上年增长12.84%,其中杉木、阔叶林和马尾松林地价值合计占比达91.86%。林地单位面积价值为54797.23元/hm~2。林木账面价值达到3385.06亿元,较上年增长2.19%。其中阔叶树、杉木和马尾松林木账面价值占总价值比重为95%;单位面积平均价值为37564.15元/hm~2。2016年生态服务价值3304.39亿元,较上年增长2.36%,单位面积生态服务价值36669元/hm~2。各生态服务价值在总价值中占比在1.81%(积累营养物质)到25.68%(涵养水源)之间。征占林地等4类森林资源损害因素共计减损森林面积和蓄积分别为1.35万hm~2和48.77万m~3。因此造成的森林资源负债金额由高到低依次为征占林地(618.26亿元)>森林火灾(505.48亿元)>乱砍滥伐(236.65亿元)>毁林开荒(67.12亿元)。林地资产、林木资产和生态服务价值占森林资源总资产价值的比重分别为42.47%、29.11%和28.42%。森林资源资产负债率为0.26%,资本积累率为6.50%。
语种:
中文
展开
森林涵养水源价值核算的新方法:账面价值法
作者:
袁继安;田大伦;康文星;伏珂颖
期刊:
林业经济 ,2018年(11):112-116 ISSN:1673-338X
作者机构:
1. 中南林业科技大学商学院;2. 中南林业科技大学生命科学与技术学院;3. 南方林业生态应用技术国家工程实验室
关键词:
有林地;涵养水源;价值核算;制造成本;账面价值
摘要:
以湖南省有林地资源为研究对象,以城市供水制造成本的账面价值为基础,核算了近年的森林涵养水源价值。结果表明,2014-2016年,有林地年均涵养水源量为426.28亿t/年,年均涵养水源价值926.65亿元/年,单位面积提供价值7128.41元/hm^2·年,是按城市供水价格法核算结果的48.78%,相当于按影子工程法核算结果的35.59%。为准确核算森林涵养水源价值,应客观分析涵养水源功能的水文学过程、正确计量涵养水源实物量并规范核算城市供水的生产成本。
语种:
中文
展开
国内工业生态安全研究述评
作者:
彭新沙;田大伦
期刊:
生态学报 ,2016年36(23):7538-7550 ISSN:1000-0933
通讯作者:
Tian, D.L.
作者机构:
[田大伦; 彭新沙] 中南林业科技大学生命科学与技术学院 长沙410004;[彭新沙] 湖南商学院旅游管理学院 长沙410205;[田大伦] 南方林业生态应用技术国家工程实验室 长沙410004
通讯机构:
School of life Science and Technology, Central South University of Forestry Science and Technology, Changsha, China
关键词:
工业生态安全;工业生态风险;国内;研究现状;述评
摘要:
经过对国内工业生态安全研究文献的梳理与评价,从一个侧面比较系统地反映了国内该领域研究的现状、重点内容及发展趋势,指出了研究的若干重要进展及存在的不足。在此基础上,对今后我国工业生态安全研究提出了展望与建议。调研发现,国内学者在基础研究、应用研究方面都取得了明显进展:借鉴、界定和运用了一些重要概念;开拓了工业生态安全应用研究的两个重点领域。但是其不足也比较明显:基础理论研究非常薄弱;应用研究的尺度主要是中观层次(区域、行业、工业园区等), 企业及国家层面工业生态安全等微观和宏观层次的专题系统研究文献比较少;研究方法上综合交叉研究、实证研究、定量分析比较薄弱。因此,应该大力加强工业生态安全基础性理论问题研究,重视实证研究与定量分析,紧紧抓住工业生态安全研究综合性与交叉性强的特点,在重点研究高耗能行业及工业自然生态环境安全的同时,注意拓展对工业经济生态环境安全、社会生态环境安全以及工业自然-经济-社会复合生态系统综合生态安全的研究。为此,应该建立各相关学科与部门有效沟通、官产学研合作攻关的协调机制。
语种:
中文
展开
湖南省森林植被碳储量、碳密度动态特征
作者:
刘兆丹;李斌;方晰;项文化;田大伦;...
期刊:
生态学报 ,2016年36(21):6897-6908 ISSN:1000-0933
通讯作者:
Lei, P.F.
作者机构:
中南林业科技大学生命科学与技术学院,长沙,410004;[田大伦; 方晰; 李斌; 项文化; 雷丕锋; 闫文德] 中南林业科技大学生命科学与技术学院,长沙410004;[李斌] 国家林业局,北京100714;[田大伦; 方晰; 项文化; 雷丕锋; 闫文德] 南方林业生态应用技术国家工程实验室,长沙410004;[刘兆丹] 中南林业科技大学
通讯机构:
College of Life Science and Technology, Central South University of Forestry and Technology, Changsha, China
关键词:
湖南省;森林植被;碳储量;碳密度;动态变化
摘要:
利用湖南省4次(1983—1987年、1990—1995年、2003—2004年和2009年)森林资源清查数据,采用材积源-生物量法,结合湖南省现有森林植被主要树种碳含量实测数据,研究近20多年来湖南省森林植被碳储量、碳密度的动态特征。结果表明:从1987年到2009年,湖南省乔木林植被碳汇为66.40×10~6 tC,碳密度提高了5.65 tC/hm~2,阔叶林碳汇最大(48.43×10~6 tC), 其次是杉木林(9.54×10~6 tC)和松木林(6.68×10~6 tC), 各乔木林植被碳密度波动较大;除过熟林外,各龄组乔木林均为碳汇,中龄林碳汇最大,幼龄林、中龄林、近熟林植被碳密度依次提高了4.75、4.09、0.83 tC/hm~2,成熟林、过熟林分别下降了6.87、13.88 tC/hm~2;天然林、人工林植被碳汇分别为41.01×10~6 tC、25.39×10~6 tC,碳密度分别提高了7.19、4.91 tC/hm~2。湖南省森林植被(包括疏林)碳汇为84.87×10~6 tC,乔木林碳汇最大,其次是竹林,分别占湖南省森林植被碳汇的78.24%和33.31%,碳密度提高了6.24 tC/hm~2,各森林类型植被碳储量随其面积变化而变化。表明近20多年来,湖南省乔木林植被单位面积储碳能力明显提高,天然林在湖南省乔木林植被碳储量占有重要地位。
语种:
中文
展开
血水草根蛋白质组学研究
作者:
刘铭;彭玲;杨盛清;田大伦
期刊:
湖南师范大学自然科学学报 ,2016年39(5):22-26,56 ISSN:2096-5281
作者机构:
湖南师范大学体育学院,中国 长沙,410013;湖南师范大学医学院,中国 长沙 410013;中南大学附属湘雅医院,中国 长沙 410083;湖南师范大学医学院,中国 长沙,410013;中南林业科技大学生命科学学院,中国 长沙,410004
关键词:
血水草;蛋白质组学;双向电泳;质谱
摘要:
为用蛋白质组学方法初步分析血水草根蛋白质的表达,提取血水草根的蛋白质,经双向凝胶电泳分离、考马斯亮蓝染色后,切取分离较好的蛋白质点,经基质辅助激光解吸/电离飞行时间串联质谱(MALDI-TOFTOF)分析和数据库(IPI)检索,对蛋白质进行鉴定.成功鉴定了28个蛋白质点,其中具有明确功能的蛋白质17种,分别属于DNA复制酶、翻译调控蛋白、代谢酶、细胞结构蛋白;另外11种为未知功能蛋白.
语种:
中文
展开
湖南省森林土壤有机碳密度及碳库储量动态
作者:
李斌;方晰;李岩;项文化;田大伦;...
期刊:
生态学报 ,2015年35(13):4265-4278 ISSN:1000-0933
通讯作者:
Fang, X.
作者机构:
[田大伦; 方晰; 李斌; 项文化; 闫文德] 中南林业科技大学,生命科学与技术学院,长沙410004;[李斌] 国家林业局,北京100714;[田大伦; 方晰; 项文化; 闫文德] 南方林业生态应用技术国家工程实验室,长沙410004;Division of Science, College of Arts and Sciences, Governors State University, University Park, Illinois 60484(USA);湖南省邵阳县林业局,邵阳,422100
通讯机构:
College of Life science and technology, Central South University of Forestry and Technology, Changsha, China
关键词:
湖南省;森林土壤;森林类型;有机碳密度;碳库储量
摘要:
基于2000—2014年文献和著作资料中的湖南省森林土壤剖面有机碳含量数据,湖南会同杉木林生态系统国家野外科学观测研究站近15年的实测数据,分析了湖南省主要森林类型土壤有机碳密度,结合1983年至2009年湖南省4次森林资源清查数据,研究了湖南省森林土壤有机碳库储量的动态特征。结果表明:湖南省主要森林类型土壤有机碳算术平均含量在9.53-22.86g/kg之间,灌木林最高,土壤有机碳含量的分异主要发生在0-40 cm土层,0-80 cm土壤层有机碳密度在95.44-181.30 tC/hm~2之间,平均为137.15 tC/hm~2,主要分布在0—40 cm土层中,随土壤深度增加,各森林类型土壤有机碳密度的差异下降,受森林类型的影响减弱。从1983—1987年到2009年,湖南省乔木林土壤层(0-80 cm)有机碳库储量净增加了414.86× 10~6℃,面积加权平均有机碳密度提高了10.98 tC/hm~2,不同乔木林土壤层(0-80 cm)有机碳库储量的差异随着时间进程逐渐增大,主要分布在杉木林、松木林、阔叶林。天然林是湖南省乔木林土壤有机碳库储量的主要贡献者,人工林土壤有机碳储量正逐步提高,经济林、竹林、灌木林对湖南省森林土壤层(0-80 cm)有机碳库储量贡献不同,且动态变化趋势也不同。森林土壤层有机碳库储量的变化与各森林类型面积的变化密切相关,而各森林类型面积的增减,与各项林业政策的实施密切相关。因此,人类活动深刻影响森林土壤的碳汇功能。
语种:
中文
展开
Growth and heavy metal accumulation of Koelreuteria Paniculata seedlings and their potential for restoring manganese mine Wastelands in Hunan, China
作者:
Huang, Zhihong;Xiang, Wenhua* ;Ma, Yu'e;Lei, Pifeng;Tian, Dalun;...
期刊:
International Journal of Environmental Research and Public Health ,2015年12(2):1726-1744 ISSN:1661-7827
通讯作者:
Xiang, Wenhua
作者机构:
[Tian, Dalun; Lei, Pifeng; Huang, Zhihong; Xiang, Wenhua; Yan, Wende; Fang, Xi; Deng, Xiangwen] Cent South Univ Forestry & Technol, Natl Engn Lab Appl Technol Forestry & Ecol South, Changsha 410004, Hunan, Peoples R China.;[Xiang, Wenhua; Ma, Yu'e] Cent South Univ Forestry & Technol, Fac Life Sci & Technol, Changsha 410004, Hunan, Peoples R China.
通讯机构:
[Xiang, Wenhua] C;Cent South Univ Forestry & Technol, Natl Engn Lab Appl Technol Forestry & Ecol South, Changsha 410004, Hunan, Peoples R China.
关键词:
iron;manganese;zinc;industrial waste;manganese;soil pollutant;abandoned mine;angiosperm;bioaccumulation;biomass;environmental research;growth response;heavy metal;manganese;phytoremediation;restoration ecology;seedling;survival;tree;Article;bioaccumulation;biomass allocation;China;clay;concentration (parameters);controlled study;ecosystem restoration;feasibility study;hazardous waste site;industrial sludge;Koelreuteria paniculata;mine tailings;nonhuman;physical chemistry;phytoremediation;plant growth;root development;soil analysis;survival rate;tree;waste component removal;bioremediation;chemistry;comparative study;evaluation study;growth, development and aging;industrial waste;mining;pharmacokinetics;procedures;Sapindaceae;seedling;soil pollutant;tree;China;Hunan;Koelreuteria paniculata;Biodegradation, Environmental;China;Environmental Restoration and Remediation;Feasibility Studies;Industrial Waste;Manganese;Mining;Sapindaceae;Seedlings;Soil Pollutants;Trees
摘要:
The planting of trees on mine wastelands is an effective, long-term technique for phytoremediation of heavy metal-contaminated wastes. In this study, a pot experiment with seedlings of Koelreuteria paniculata under six treatments of local mine wastes was designed to determine the major constraints on tree establishment and to evaluate the feasibility of planting K. paniculata on manganese mine wastelands. Results showed that K. paniculata grew well in mine tailings, and also under a regime of equal amounts of mine tailings and soil provided in adjacent halves of pots. In contrast, mine sludge did not favor survival and growth because its clay texture limited fine root development. The bio-concentration factor and the translocation factor were mostly less than 1, indicating a low phytoextraction potential for K. paniculata. K. paniculata is suited to restore manganese mine sludge by mixing the mine sludge with local mine tailings or soil.
语种:
英文
展开
湖南省现有森林植被主要树种的碳含量
作者:
李斌;方晰;田大伦;项文化;闫文德;...
期刊:
中南林业科技大学学报 ,2015年35(1):71-78 ISSN:1673-923X
作者机构:
[田大伦; 方晰; 李斌; 邓湘雯; 项文化; 康文星; 闫文德] 中南林业科技大学生命科学与技术学院,湖南长沙 410004;国家林业局,北京 100714;南方林业生态应用技术国家工程实验室,湖南长沙 410004;[田大伦; 方晰; 邓湘雯; 项文化; 康文星; 闫文德] 南方林业生态应用技术国家工程实验室,湖南长沙 410004;[李斌] 国家林业局,北京 100714
关键词:
针叶树种;阔叶树种;毛竹;碳含量;湖南省
摘要:
探讨了湖南省现有森林植被17种树种(杉木、马尾松、湿地松、柏木、乐昌含笑、红花木莲、樟树、桢楠、甜槠、青冈栎、木荷、杜英、山矾、枫香、拟赤杨、杨树、毛竹)各器官的碳含量及其各器官碳含量的算术平均值。结果表明:同一树种不同器官碳含量差异不显著,不同树种各器官碳含量由高至低的排序不完全一致,不同树种同一器官或同一树种不同器官碳含量算术平均值存在一定的差异;针叶树、常绿阔叶树、落叶阔叶树和毛竹各器官碳含量(g·g~(-1))的变化范围分别为0.491~ 0.566,0.421~ 0.549,0.449~ 0.550,0.470~ 0.496,各树种种内各器官碳含量算术平均值在0.486~ 0.551 g·g~(-1)之间变化,柏木最高,毛竹最低;针叶树碳含量高于阔叶树、毛竹,各树种树干碳含量普遍较高于其它各器官,变化范围在0.493~ 0.556 g·g~(-1)之间,地上部分碳含量普遍高于相应树种的地下部分;17种树种各器官碳含量的算术平均值为0.504 g·g~(-1)。
语种:
中文
展开
Long-term variations of rainfall interception in different growth stages of Chinese fir plantations [Variations à long terme de l’interception des précipitations à différentes étapes de croissance de plantations de sapins chinois]
作者:
Yan, Wende* ;Deng, Xiangwen;Chen, Xiaoyong;Tian, Dalun;Xiang, Wenhua;...
期刊:
Hydrological Sciences Journal ,2015年60(12):2178-2188 ISSN:0262-6667
通讯作者:
Yan, Wende
作者机构:
[Tian, Dalun; Peng, Yuanying; Xiang, Wenhua; Yan, Wende; Deng, Xiangwen] Cent South Univ Forestry & Technol, Coll Life Sci & Technol, Forest Ecol Program, Changsha, Hunan, Peoples R China.;[Tian, Dalun; Xiang, Wenhua; Yan, Wende; Deng, Xiangwen; Chen, Xiaoyong] Natl Engn Lab Appl Forest Ecol Technol Southern C, Changsha, Hunan, Peoples R China.;[Chen, Xiaoyong] Governors State Univ, Coll Arts & Sci, Div Sci, University Pk, IL USA.;[Peng, Yuanying] Coll DuPage, Div Nat Sci, Glen Ellyn, IL USA.
通讯机构:
[Yan, Wende] C;Cent South Univ Forestry & Technol, Coll Life Sci & Technol, Forest Ecol Program, Changsha, Hunan, Peoples R China.
关键词:
Hydrology;Annual interceptions;Chinese fir forests;Different ages;Different growth stages;Dynamic property;Interception ratio;Rainfall event;Rainfall interception;Rain;dynamic property;forest canopy;interception;long-term change;plantation;rainfall;stand structure;stemflow;throughfall;China;Cunninghamia lanceolata
摘要:
The dynamic properties of rainfall interception were investigated at three growth stages in Chinese fir plantations. The results showed that the annual interception ratio was significantly higher in mature stands than in young stands. For a storm event, interception rainfall amount increased with increasing rainfall, but interception ratio decreased. In contrast to dry season conditions, the interception amount was high in the wet seasons, while the interception ratio was low. The rates of change in interception ratio were extremely rapid in small rainfall events. There was little stemflow in Chinese fir forests due to the pyramid-shaped crowns and thick rough bark of the trees. The power model was suitable to describe the interception process for an individual rainfall event for stands of any age. Our results indicate that the interception process varied for stands of different ages in Chinese fir plantations due to contrasting canopy structures. © 2015 IAHS.
语种:
英文
展开
Roles of Koelreuteria bipinnata as a suitable accumulator tree species in remediating Mn, Zn, Pb, and Cd pollution on Mn mining wastelands in southern China
作者:
Luo, Zhaohui;Tian, Dalun* ;Ning, Chen;Yan, Wende;Xiang, Wenhua;...
期刊:
Environmental Earth Sciences ,2015年74(5):4549-4559 ISSN:1866-6280
通讯作者:
Tian, Dalun
作者机构:
[Tian, Dalun; Luo, Zhaohui; Xiang, Wenhua; Yan, Wende; Ning, Chen; Peng, Changhui] Cent South Univ Forestry & Technol, Fac Life Sci & Technol, Changsha 410004, Hunan, Peoples R China.;[Peng, Changhui] Univ Quebec, Inst Environm Sci, Dept Biol Sci, Montreal, PQ H3C 3P8, Canada.
通讯机构:
[Tian, Dalun] C;Cent South Univ Forestry & Technol, Fac Life Sci & Technol, Changsha 410004, Hunan, Peoples R China.
关键词:
Biomass change;Phytoremediation;Heavy metal-contaminated soil;Manganese (Mn) mining wasteland
摘要:
The necessity and urgency of remediating soil polluted with heavy metals have been recognized both politically and socially at the global level. Phytoremediation is a sustainable technology to remove or stabilize heavy metals in soil at former mine sites. The aim of this study was to clarify the ability of the tree species Koelreuteria bipinnata to phytoremediate heavy metal (Mn, Zn, Pb, and Cd)-contaminated soils. Concentrations of the four heavy metals were measured in soils from an un-remediated plot and from three K. bipinnata stands of different ages at the former Xiangtan manganese (Mn) mine, also forest stand growth and heavy metal concentrations were measured within different tissue of trees at three stands planted in heavy metal-contaminated soil for different years. The results showed that stand biomass of trees increased from 2.32 t ha<sup>−1</sup>for 3-year-old trees, through 34.11 t ha<sup>−1</sup>at 5 years, to 102.06 t ha<sup>−1</sup>at 9 years. Total and individual heavy metal concentrations accumulated in the trees also increased with stand age;9-year-old trees had accumulated 2.18 times the total heavy metals as the 3-year-old trees. Furthermore, soil heavy metal concentrations significantly (p < 0.05) decreased as stand age increased;total heavy metal concentrations in the contaminated soils remediated by 9-year-old trees were 85.29 % lower than its un-remediated plot. The results indicate that K. bipinnata is a suitable accumulator species to remediate Mn, Zn, Pb, and Cd pollution on mining wasteland. ©2015, Springer-Verlag Berlin Heidelberg.
语种:
英文
展开
间伐强度对人工杉木林地表径流的影响
作者:
柳思勉;田大伦;项文化;闫文德;刘云国;...
期刊:
生态学报 ,2015年35(17):5769-5775 ISSN:1000-0933
通讯作者:
Liu, Y.
作者机构:
[柳思勉; 刘云国; 胡新将] 湖南大学环境科学与工程学院;环境生物与控制教育部重点实验室(湖南大学);[田大伦; 项文化; 闫文德] 中南林业科技大学生命科学与技术学院
通讯机构:
College of Environmental Science and Engineering, Hunan University, Changsha, China
关键词:
间伐强度;地表径流;杉木林;降雨量;林下植被;土壤
摘要:
在湖南会同生态站的人工杉木林集水区,对比研究了不同间伐强度对地表径流影响。结果表明:降雨量大小是形成地表径流的主要原因,即地表径流随降雨量上升而增大。在不出现大暴雨及特大暴雨的情形下,间伐样地产生的地表径流比对照样地小,其中,30%的间伐强度更利于减小地表径流。通过对不同月份的降雨量与地表径流的关系研究,证明了单次降雨量,而非降雨总量,才是导致地表径流形成的主要原因。通过地表径流与林下植被、土壤特性的多元相关分析可知,地表径流与枯落物量、灌木草本层盖度、土壤非毛管孔隙、水稳性土壤团聚体粒径呈显著负相关,与土壤容重呈显著正相关。间伐正是通过改变上述因子而增强了水土保持能力,减小了地表径流的形成。在人工杉木林条件下和间伐强度范围内,30%的间伐强度下的影响更显著,更有助于减小地表径流。
语种:
中文
展开
Standing fine root mass and production in four Chinese subtropical forests along a succession and species diversity gradient
作者:
Liu, Cong;Xiang, Wenhua* ;Lei, Pifeng;Deng, Xiangwen;Tian, Dalun;...
期刊:
Plant and Soil ,2014年376(1-2):445-459 ISSN:0032-079X
通讯作者:
Xiang, Wenhua
作者机构:
[Tian, Dalun; Lei, Pifeng; Xiang, Wenhua; Fang, Xi; Liu, Cong; Deng, Xiangwen] Cent South Univ Forestry & Technol, Fac Life Sci & Technol, Changsha 410004, Hunan, Peoples R China.;[Peng, Changhui] Univ Quebec, Dept Biol Sci, Inst Environm Sci, Montreal, PQ H3C 3P8, Canada.
通讯机构:
[Xiang, Wenhua] C;Cent South Univ Forestry & Technol, Fac Life Sci & Technol, Changsha 410004, Hunan, Peoples R China.
关键词:
Fine root biomass;Fine root production;Seasonal variation;Successional gradient;Tree species diversity
摘要:
Background and aims: The influences of succession and species diversity on fine root production are not well known in forests. This study aimed to investigate: (i) whether fine root biomass and production increased with successional stage and increasing tree species diversity; (ii) how forest type affected seasonal variation and regrowth of fine roots. Methods: Sequential coring and ingrowth core methods were used to measure fine root production in four Chinese subtropical forests differing in successional stages and species diversity. Results: Fine root biomass increased from 262 g·m−2 to 626 g·m−2 with increasing successional stage and species diversity. A similar trend was also found for fine root production, which increased from 86 to 114 g·m−2 yr −1 for Cunninghamia lanceolata plantation to 211–240 g·m−2 yr −1 for Choerospondias axillaries forest when estimated with sequential coring data. Fine root production calculated using the ingrowth core data ranged from 186 g·m−2 yr −1 for C. lanceolata plantation to 513 g·m−2 yr −1 for Lithocarpus glaber – Cyclobalanopsis glauca forest. Conclusions: Fine root biomass and production increased along a successional gradient and increasing tree species diversity in subtropical forests. Fine roots in forests with higher species diversity exhibited higher seasonal variation and regrowth rate. © 2013, Springer Science+Business Media Dordrecht.
语种:
英文
展开
栾树林对湘潭锰矿废弃地土壤碳氮含量的影响
作者:
罗赵慧;田大伦;宁晨;闫文德
期刊:
林业科学 ,2014年50(3):130-133 ISSN:1001-7488
作者机构:
[田大伦; 宁晨; 罗赵慧; 闫文德] 中南林业科技大学
关键词:
栾树;植被恢复;废弃地;土壤;碳;氮
摘要:
土壤有机碳和氮素是植物生长所必须的营养元素,也是土壤养分和生态系统中的关键生态因子,是陆地碳库和氮库的重要组成部分,其含量多少将会直接影响土壤中微生物数量和凋落物的分解速率(Nasholm et al.,1998; Dormaar et al.,1990; 任书杰等,2006) 。土壤有机碳和氮素的变化与土地利用/覆盖密切相关,地表植物群落的变化,往往会造成土壤碳和氮分布格局的变化,进而影响整个生态系统的稳定性和可持续性(刘全友等,2005) 。
语种:
中文
展开
Influence of thinning on acidic deposition in Chinese fir plantations
作者:
Liu Si-mian;Tian Da-lun;Xiang Wen-hua;Yan Wen-de;Liu Yun-guo* ;...
期刊:
中南大学学报(英文版) ,2014年21(2):694-700 ISSN:2095-2899
通讯作者:
Liu Yun-guo
作者机构:
[Hu Xin-jiang; Liu Si-mian; Liu Yun-guo] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China.;[Hu Xin-jiang; Liu Si-mian; Liu Yun-guo] Hunan Univ, Minist Educ, Key Lab Environm Biol & Pollut Control, Changsha 410082, Hunan, Peoples R China.;[Tian Da-lun; Xiang Wen-hua] Cent South Univ Forestry & Technol, Fac Life Sci & Technol, Changsha 410004, Hunan, Peoples R China.;[Tian Da-lun; Xiang Wen-hua; Yan Wen-de] Cent South Univ Forestry & Technol, Sect Ecol Res, Changsha 410004, Hunan, Peoples R China.
通讯机构:
[Liu Yun-guo] H;Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China.
关键词:
thinning;acidic deposition;Chinese fir;biomass;soil properties
摘要:
Acidic deposition, which is mainly caused by atmospheric pollution, is one of the global environmental problems. Thinning is an effective management to improve the tree productivity, reduce the wildfire risk and maintain a healthy forest. Since thinning may reduce the effect of acidic deposition, the effect of thinning on acidic deposition was estimated. The biomass, soil properties, pH value of runoff and groundwater in both unthinned and thinned Chinese fir plantations were measured and compared over a 5-year period (2-6 years after thinning). The results indicated that acidic deposition in the Huitong State Ecosystem Research Station was serious, and it got worse with time. Forest thinning resulted in a huge change in biomass and soil properties. During the 5-year monitoring period, biomasses of understory and litter, plant species richness, coverage of undergrowth plant layer were significantly higher in thinned site than in unthinned site. Moreover, higher soil fertility as well as lower amounts of runoff and groundwater were found in thinned site. It was suggested that thinning could improve the structure of forest, leading to restoring the effluent (runoff and groundwater) pH to the normal value. © 2014 Central South University Press and Springer-Verlag Berlin Heidelberg.
语种:
英文
展开
Soil CO_2 Flux in Different Types of Forests Under a Subtropical Microclimatic Environment
作者:
Yan Wen-De;Xu Wang-Ming;Chen Xiao-Yong* ;Tian Da-Lun;Peng Yuan-Ying;...
期刊:
土壤圈(英文版) ,2014年24(2):243-250 ISSN:1002-0160
通讯作者:
Chen Xiao-Yong
作者机构:
[Chen Xiao-Yong; Tian Da-Lun; Yan Wen-De] Cent South Univ Forestry & Technol, Coll Life Sci & Technol, Forest Ecol Program, Changsha 410004, Hunan, Peoples R China.;[Xu Wang-Ming] State Forestry Adm China, Beijing 100714, Peoples R China.;[Chen Xiao-Yong] Governors State Univ, Coll Arts & Sci, Div Sci, University Pk, PA 60484 USA.;[Peng Yuan-Ying] Coll DuPage, Div Nat Sci, Glen Ellyn, IL 60137 USA.;[Chen Xiao-Yong] Natl Engn Lab Appl Forest Ecol Technol Southern C, Changsha 410004, Hunan, Peoples R China.
通讯机构:
[Chen Xiao-Yong] N;Natl Engn Lab Appl Forest Ecol Technol Southern C, Changsha 410004, Hunan, Peoples R China.
关键词:
biotic factor;broad-leaved forest;carbon dioxide;carbon flux;coniferous forest;microclimate;mixed forest;nutrient cycling;pH;soil carbon;soil organic matter;soil surface;soil temperature;soil water;subtropical region;tropical forest;water content;Changsha;China;Hunan
摘要:
The flux of carbon dioxide (CO2) from soil surface presents an important component of carbon (C) cycle in terrestrial ecosystems and is controlled by a number of biotic and abiotic factors. In order to better understand characteristics of soil CO2 flux (FCO2) in subtropical forests, soil FCO2 rates were quantified in five adjacent forest types (camphor tree forest, Masson pine forest, mixed camphor tree and Masson pine forest, Chinese sweet gum forest, and slash pine forest) at the Tianjiling National Park in Changsha, Hunan Province, in subtropical China, from January to December 2010. The influences of soil temperature (Tsoil), volumetric soil water content (θsoil), soil pH, soil organic carbon (SOC) and soil C/nitrogen (N) ratio on soil FCO2 rates were also investigated. The annual mean soil FCO2 rate varied with the forest types. The soil FCO2 rate was the highest in the camphor tree forest (3.53 ± 0.51 μmol m-2 s-1), followed by, in order, the mixed, Masson pine, Chinese sweet gum, and slash pine forests (1.53 ± 0.25 μmol m-2 s1). Soil FCO2 rates from the five forest types followed a similar seasonal pattern with the maximum values occurring in summer (July and August) and the minimum values during winter (December and January). Soil FCO2 rates were correlated to Tsoil and θsoil, but the relationships were only significant for Tsoil. No correlations were found between soil FCO2 rates and other selected soil properties, such as soil pH, SOC, and C/N ratio, in the examined forest types. Our results indicated that soil FCO2 rates were much higher in the evergreen broadleaved forest than coniferous forest under the same microclimatic environment in the study region. © 2014 Soil Science Society of China.
语种:
英文
展开
Applying an artificial neural network to simulate and predict Chinese fir (Cunninghamia lanceolata) plantation carbon flux in subtropical China
作者:
Wen, Xuding;Zhao, Zhonghui;Deng, Xiangwen* ;Xiang, Wenhua;Tian, Dalun;...
期刊:
Ecological Modelling ,2014年294:19-26 ISSN:0304-3800
通讯作者:
Deng, Xiangwen
作者机构:
[Wen, Xuding; Tian, Dalun; Zhao, Zhonghui; Zhou, Xiaolu; Xiang, Wenhua; Yan, Wende; Peng, Changhui; Deng, Xiangwen] Cent South Univ Forestry & Technol, Fac Life Sci & Technol, Natl Engn Lab Appl Technol Forestry & Ecol South, Changsha 410004, Hunan, Peoples R China.;[Zhou, Xiaolu; Peng, Changhui] Univ Quebec, Dept Biol Sci, Ctr CEF ESCER, Montreal, PQ H3C 3P8, Canada.
通讯机构:
[Deng, Xiangwen] C;Cent South Univ Forestry & Technol, Fac Life Sci & Technol, Natl Engn Lab Appl Technol Forestry & Ecol South, Changsha 410004, Hunan, Peoples R China.
关键词:
C flux;Cunninghamia lanceolata plantation;Artificial neural network;Nonlinear problem
摘要:
Carbon (C) flux between forest ecosystems and the atmosphere is an important ecosystem C cycling component. Modeling C flux plays a critical role in assessing both C cycles and budgets. This study aimed to determine important non-redundant input variables to quantify C flux and to develop a new application of a genetic neural network (GNN) model that accurately simulates C flux. Four input variables (atmospheric CO2 concentration, air temperature, photosynthetically active radiation (PAR), and relative humidity) were fixed, whereas three additional input variables (wind speed, soil temperature, and rainfall) were randomly combined to compile eight combinations of input variables (CIV 1-CIV 8). C flux and meteorological data were collected over a four-year period between January 2008 and December 2011 at the Huitong National Research Station of Forest Ecosystem. Results showed that CIV 8 (grouping atmospheric CO2 concentration, air temperature, PAR, relative humidity, wind speed, and soil temperature) performed best, yielding a correlation coefficient (R2) of 0.87, outlier of 0.79%, and a root mean squares of errors (RMSE) of 0.11. C flux data during summer generally provided the best performance with R2 ranging from 0.74 to 0.82, volumetric fitting (Ivf) ranging from 1.00 to 1.02, and outliers ranging from 1.20% to 1.40%. Spring data performance ranked second and winter last. When combining seasonal data to reflect the entire year, R2 ranged from 0.77 to 0.83, Ivf ranged from 0.92 to 0.97, outliers ranged from 1.40% to 1.78%, and RMSE ranged from 0.10 to 0.11, indicating that the GNN model is capable in capturing C flux dynamics while successfully simulating and predicting C flux in a Cunninghamia lanceolata plantation in subtropical China. © 2014.
语种:
英文
展开
湖南省杉木林植被碳贮量、碳密度及碳吸存潜力
作者:
李斌;方晰;项文化;田大伦
期刊:
林业科学 ,2013年49(3):25-32 ISSN:1001-7488
作者机构:
[田大伦; 方晰; 李斌; 项文化] 中南林业科技大学生命科学与技术学院 长沙410004;[李斌] 国家林业局 北京100714;[田大伦; 方晰; 项文化] 南方林业生态应用技术国家工程实验室 长沙410004
关键词:
杉木林植被;碳贮量;碳密度;碳吸存潜力;湖南省
摘要:
基于湖南省2005和2010年森林资源调查统计数据,结合国家野外科学观测研究站湖南会同杉木林生态系统定位研究站的观测数据,估算湖南省杉木林植被碳贮量、碳密度及碳吸存潜力。结果表明:2005和2010年湖南省杉木林植被碳贮量分别为30.39 × 10~6和32.92 × 10~6 t,均以中龄林的碳贮量最高,分别为17.64 × 10~6和17.31 × 10~6 t;2010年各地州市杉木林植被碳贮量为0.34 × 10~6 ~ 6.45 × 10~6 t;杉木林碳密度随林分龄级增加而增高,过熟林最大(23.90 tC·hm~(-2)以上),2005和2010年湖南省杉木林平均碳密度分别为10.83和12.05 tC·hm~(-2),各地州市杉木林植被碳密度为6.03 ~ 16.58 tC·hm~(-2),基本上呈现出南高北低的趋势;湖南省杉木林植被的现实碳吸存潜力为90.75 × 10~6 t,不同龄级林分的现实碳吸存潜力表现为中龄林(53.62 × 10~6 t) > 近熟林(32.77 × 10~6 t) >幼龄林(4.36 × 10~6 t),各地州市杉木林植被的现实碳吸存潜力为1.18 × 10~6 ~ 17.39 × 10~6 t;湖南省(2010年)现有未成熟杉木林到2020年时的固碳潜力为176.77 × 10~6 t,年固碳潜力为17.68 × 10~6 t·a~(-1),到达成熟阶段(26年生)时固碳潜力为211.67 × 10~6 t。湖南省杉木林分质量不高,中幼龄林所占比重较大,若能对现有杉木林加以更好的抚育管理,湖南省杉木林仍有很大的碳汇潜力。
语种:
中文
展开
Secondary forest floristic composition, structure, and spatial pattern in subtropical China
作者:
Xiang, Wenhua* ;Liu, Shaohui;Lei, Xiangdong;Frank, Shane C.;Tian, Dalun;...
期刊:
Journal of Forest Research ,2013年18(1):111-120 ISSN:1341-6979
通讯作者:
Xiang, Wenhua
作者机构:
[Tian, Dalun; Wang, Guangjun; Liu, Shaohui; Xiang, Wenhua; Deng, Xiangwen] Cent S Univ Forestry & Technol, Fac Life Sci & Technol, Changsha 410004, Hunan, Peoples R China.;[Liu, Shaohui] China State Forestry Adm, Dept Dev Planning & Assets Management, Beijing 100714, Peoples R China.;[Lei, Xiangdong] Chinese Acad Forestry, Inst Forest Resource Informat Tech, Beijing 100091, Peoples R China.;[Frank, Shane C.] Univ Freiburg, Inst Silviculture, D-79106 Freiburg, Germany.
通讯机构:
[Xiang, Wenhua] C;Cent S Univ Forestry & Technol, Fac Life Sci & Technol, Changsha 410004, Hunan, Peoples R China.
关键词:
Biodiversity;Conservation;Stochastic systems;Tropics;Alniphyllumfortunei;Biodiversity conservation;Cyclobalanopsisglauca;Diameter-at-breast heights;Evergreen broad-leaved forests;Liquidambarformosana;Spatial patterns;Sustainable management;Forestry;biodiversity;community composition;competition (ecology);diameter;dominance;evergreen forest;facilitation;flora;habitat conservation;height;heterogeneity;secondary forest;subtropical region;succession;sustainable development;Biodiversity;China;Conservation;Flowers;Forests;Tropical Atmospheres;China;Huitong;Hunan;Choerospondias;Quercus glauca
摘要:
Secondary evergreen broadleaved forests are precious remnants for biodiversity conservation and templates for sustainable management of natural forests in subtropical China. Floristic composition, size structure, and spatial pattern of dominant tree species have been investigated for a subtropical secondary evergreen broadleaved forest in the Huitong Yingzuijie National Forest Reserve, Hunan, China. The location of all trees greater than 4 cm in diameter at breast height (DBH) were mapped within a 0. 96-ha plot in which species, DBH, and total tree height were recorded. Ripley's K(t) function was used to analyze spatial patterns and associations. The secondary forest consisted of 74 tree species and 1,596 stems per hectare. A reverse-J shaped DBH classes distribution was observed for all stems and trees of later seral species whereas trees of earlier successional species were distributed irregularly. Significant aggregated spatial patterns were observed for all trees within the forest and for conspecific trees of each dominant species. This result, and a repulsive spatial pattern for interspecific trees of Choerospondias axillaries and Cyclobalanopsis glauca against other dominant tree species, support segregation hypothesis. Contributions of seed dispersal, topographic heterogeneity, and competition to spatial patterns of conspecific trees vary depending on tree species. Attractive spatial pattern among interspecific trees of Liquidambarfortunei, Liquidambarformosana, and Pinusmassoniana reflects stochastic colonization of pioneer tree species and a facilitation relationship. Although deciduous species are long-lived and persist over long successional processes, they will eventually be replaced by late seral evergreen species within the secondary forest if no disturbance events occur. © 2011 The Japanese Forest Society and Springer.
语种:
英文
展开
Impacts of changed litter inputs on soil CO2 efflux in three forest types in central south China
作者:
Yan WenDe;Chen XiaoYong* ;Tian DaLun;Peng YuanYing;Wang GuangJun;...
期刊:
科学通报(英文版) ,2013年58(7):750-757 ISSN:2095-9273
通讯作者:
Chen XiaoYong
作者机构:
[Wang GuangJun; Yan WenDe; Tian DaLun; Chen XiaoYong] Natl Engn Lab Appl Forest Ecol Technol Southern C, Changsha 410004, Hunan, Peoples R China.;[Wang GuangJun; Peng YuanYing; Zheng Wei; Yan WenDe; Tian DaLun] Cent South Univ Forestry & Technol, Coll Life Sci & Technol, Changsha 410004, Hunan, Peoples R China.;[Chen XiaoYong] Governors State Univ, Coll Arts & Sci, University Pk, IL 60484 USA.;[Peng YuanYing] Coll DuPage, Div Nat Sci, Glen Ellyn, IL 60137 USA.
通讯机构:
[Chen XiaoYong] N;Natl Engn Lab Appl Forest Ecol Technol Southern C, Changsha 410004, Hunan, Peoples R China.
关键词:
soil respiration;litter exclusion;litter addition;subtropical forests;soil environmental factors
摘要:
Climate change is expected to cause the alteration of litter production in forests, which may result in substantial changes in soil CO2 efflux (FCO2) process as litter represents a major pathway of carbon from vegetation to the soils. In this study, we conducted an aboveground litter manipulation experiment to examine the influence of litter addition and exclusion on soil FCO2 in Camphor tree, Masson pine, and mixed Camphor tree and Masson pine forests in central south China. Litter input manipulation included three treatments: non-litter input (litter exclusion), double litter input (litter addition), and natural litter input (control). On average, litter exclusion significantly reduced soil FCO2 rate by approximately 39%, 24% and 22% in Camphor tree forests, the Mixed forests, and Masson pine forests, respectively. On a yearly basis, double litter addition significantly increased soil CO2 by 12% in the Mixed forests (P=0.02) but not in both Camphor tree and Masson pine forests (P>0.05), when compared with their corresponding control treatments. However, litter addition increased soil FCO2 rates in the months of June-August in Camphor tree and Masson pine forests, coinciding with high soil temperature of summer conditions. Litter exclusion reduced soil FCO2 more than litter addition increased it in the study sites. Responses of soil respiration to litter input treatments varied with forest types. Litter input treatments did not alter the seasonal patterns of soil temperature and soil water content. Our results indicated that changes in aboveground litter as a result of global climate change and/or forest management have a great potential to alter soil respiration and soil carbon balance in forest ecosystems.
语种:
英文
展开