Development of a soil quality index for Camellia oleifera forestland yield under three different parent materials in Southern China
作者:
Liu, Jie;Wu, Lichao* ;Chen, Dong;Yu, Zhuguang;Wei, Changjiang
期刊:
SOIL & TILLAGE RESEARCH ,2018年176:45-50 ISSN:0167-1987
通讯作者:
Wu, Lichao
作者机构:
[Liu, Jie; Chen, Dong; Wu, Lichao] Cent South Univ Forestry & Technol, Coll Forestry, Natl Minist Educ, Key Lab Cultivat & Protect Nonwood Forest Trees, Shaoshan South Rd 498, Changsha 410004, Hunan, Peoples R China.;[Yu, Zhuguang; Wei, Changjiang] Sanmnenjiang State Owned Forest Farm, Liuzhou 545006, Peoples R China.
通讯机构:
[Wu, Lichao] C;Cent South Univ Forestry & Technol, Coll Forestry, Natl Minist Educ, Key Lab Cultivat & Protect Nonwood Forest Trees, Shaoshan South Rd 498, Changsha 410004, Hunan, Peoples R China.
关键词:
Camellia oleifera;Discriminant analysis;Factor analysis;Minimum data set (MDS);Parent material;Regression analysis;Soil quality index
摘要:
Camellia oleifera is used to produce tea oil, which is also known as “oriental olive oil”. Camellia oleifera forestland in southern China displays low yield per unit area, which seriously hinders the production of tea oil. This decreased production is primarily a result of improper planting site and lack of scientific guidance. However, during soil quality assessment, selection of soil indicators from a single soil physical and chemical attribute or specific site resulted in little practical guidance. To assess soil quality scientifically, a total of 142 sampling sites in southern China under three types of parent materials, killas, sandstone, quaternary red clay, were investigated for 23 indicators representing soil physical, chemical and biological properties. Data were analyzed by factor analysis, discriminant analysis and regression analysis. Killas had the highest total nitrogen (TN), available potassium (AK), available magnesium (AMg), available manganese (AMn), available copper (ACu), available zinc (AZn), urease and sucrase, while quaternary red clay had the highest bacteria, actinomycetes and fungi concentrations. Seven indicators, bulk density (BD), sand content, soil organic matter (SOM), available phosphorus (AP), AK, available iron (AFe), and acid phosphatase (ACP) were combined in a minimum data set (MDS) for assessing soil quality under different parent materials. The soil quality index (SQI) of soils that originated from killas, sandstone, quaternary red clay were 0.71, 0.62, 0.54, respectively, which were significantly correlated with the SQI based on all 23 indicators (R<sup>2</sup>= 0.733) and oil yield (R<sup>2</sup>= 0.694). Soils originating from killas were considered most suitable for planting of C. oleifera since they had the highest soil quality among those investigated herein. Measures should be taken to improve soil fertility of soils originating from quaternary red clay, which showed nutrient deficiency and had the lowest SQI.<br/> ©2017 Elsevier B.V.
语种:
英文
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莽山3种主要林分类型土壤有机碳分布规律
作者:
熊丹;吴立潮;何介南
期刊:
中南林业科技大学学报 ,2017年37(12):120-126 ISSN:1673-923X
作者机构:
[熊丹; 吴立潮; 何介南] 中南林业科技大学林学院, 湖南, 长沙, 410004
关键词:
土壤有机碳;林分类型;垂直分布;莽山
摘要:
为了研究莽山地区3种林分类型土壤有机碳的分布特征,于2013年7月在莽山国家森林公园选择3种不同林分类型不同海拔的9个样地,采集0 ~ 100 cm剖面土样,分析土壤有机碳含量和土壤全氮全磷等各肥力指标,研究其土壤有机碳垂直分布特征和与土壤理化性质指标的相关性。结果表明:(1)不同林分土壤有机碳含量及密度的大小顺序为常绿阔叶林>针阔混交林>针叶林。(2)不同海拔样地有机碳含量及密度差异显著,且随着海拔的升高而增加,在针叶林和针阔混交林中,高海拔地区有机碳含量显著高于低海拔地区。(3)土壤有机碳含量随剖面增加而降低。对于0 ~ 20 cm土层,针叶林有机碳含量频率分布较分散,其次是针阔混交林,常绿阔叶林含量分布相对较集中。且各土层有机碳含量均主要分布在0 ~ 50 g·kg-1的范围内。(4)除森林类型的影响外,坡度、坡向和坡位等地形地貌因素也会显著影响森林土壤的有机碳含量,样地Z1有机碳含量显著高于同林分类型其它样地,可能就是受坡度坡位等因素的影响。(5)3种林分类型土壤有机碳含量与土壤不同理化指标间均存在不同的相关性。常绿阔叶林土壤有机碳含量有效镁、全氮含量在0.01水平极显著相关。针叶林土壤有机碳含量与有效镁、全氮和容重在0.01水平极显著相关。针阔混交林土壤有机碳含量与氨氮、有效镁、全氮、全磷以及容重在0.01水平极显著相关,与pH在0.05水平显著相关。
语种:
中文
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不同富硒方法对茶油品质特性及功能性成分的影响
作者:
王彦花;刘娟;马小灵;蒋晶明;吴立潮;...
期刊:
食品工业科技 ,2017年38(5):54-59 ISSN:1002-0306
作者机构:
中南林业科技大学林学院, 教育部经济林培育与保护重点实验室, 湖南, 长沙, 410004;中南林业科技大学食品科学与工程学院, 稻谷及副产物深加工国家工程实验室, 湖南, 长沙, 410004;广西壮族自治区国有三门江林场, 广西, 柳州, 545006;[王彦花; 刘娟; 马小灵; 吴立潮] 中南林业科技大学林学院, 教育部经济林培育与保护重点实验室, 湖南, 长沙, 410004;[蒋晶明] 中南林业科技大学食品科学与工程学院, 稻谷及副产物深加工国家工程实验室, 湖南, 长沙, 410004
关键词:
茶油;富硒;品质特性;功能性成分
摘要:
以施肥富硒与生物化学富硒两种方法制得的富硒茶油为样本,测定硒含量、感官品质、理化指标、脂肪酸组成及功能性成分,探讨两种富硒方法对茶油的品质特性及功能性成分的影响。实验结果表明:施肥富硒法、生物化学富硒法茶油的硒含量分别提高至0.11 mg/kg及0.49 mg/kg,达到了我国相关富硒标准,生物化学方法的富硒效果比施肥富硒更显著;施肥富硒方法所得茶油具有更好的感官品质;两种富硒方法均降低了茶油的酸值、过氧化值,对茶油的碘值、皂化值、脂肪酸组成无明显影响;两种富硒方法对茶油中豆甾醇含量、谷甾醇含量及茶多酚含量整体上无明显影响,但生物化学富硒方法制得的茶油中α-生育酚及角鲨烯含量明显降低。总的来讲,两种富硒方法均显著提高了茶油硒含量,达到了富硒水准,其中施肥富硒方法富硒周期长,所得茶油具有更好的感官品质;生物化学富硒方法更快捷、效果更显著,但对茶油中的部分功能性成分造成了破坏。
语种:
中文
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南方红壤区油茶林土壤肥力质量指标及评价
作者:
刘洁;李茗;吴立潮
期刊:
西北林学院学报 ,2017年32(4):73-80 ISSN:1001-7461
作者机构:
中南林业科技大学林学院, 教育部经济林培育与保护重点实验室, 湖南, 长沙, 410004;广西壮族自治区国有三门江林场, 广西, 柳州, 545006;[刘洁; 吴立潮] 中南林业科技大学林学院, 教育部经济林培育与保护重点实验室, 湖南, 长沙, 410004;[李茗] 广西壮族自治区国有三门江林场, 广西, 柳州, 545006
关键词:
油茶;综合肥力指数;母岩类型;肥力质量评价指标;南方红壤区
摘要:
以南方红壤区板页岩、砂页岩、第四纪红土母质发育的油茶林土壤为对象,测定其28个土壤指标,通过主成分分析筛选油茶林土壤肥力质量评价指标,并进行土壤肥力质量评价,为油茶林养分管理和高效栽培提供依据。结果表明:1)研究区土壤有机质和中微量元素含量丰富,有效磷缺乏,平均为7.41 mg·kg~(-1)。不同母岩发育的油茶林土壤性质差异显著,板页岩发育的油茶林土壤酶活性强,而第四纪红土发育的油茶林土壤养分缺乏,特别是全氮含量不足,平均仅为0.44 g·kg~(-1)。2)土壤肥力质量评价的指标体系为黏粒、有机质、有效磷、速效钾、有效铁、有效硼、微生物生物量氮、磷酸酶和真菌。3)研究区土壤综合肥力指数(IFI)介于0.26~0.90之间,土壤肥力质量中等的占32.35%,中等以上占38.24%。不同母岩发育的油茶林土壤肥力质量表现为:板页岩(0.727)>砂页岩(0.587)>第四纪红土(0.418),因此在油茶栽培中应优先选择板页岩发育的土壤,而对第四纪红土发育的油茶林土壤应注重提高氮含量,3种母岩发育的油茶林土壤都应及时补充磷肥。
语种:
中文
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间作类型对新造泡桐林生长及其土壤养分含量的影响
作者:
朱志文;李鹏;黄卫华;吴立潮;涂佳
期刊:
湖南林业科技 ,2017年44(2):15-19,25 ISSN:1003-5710
作者机构:
[黄卫华; 朱志文] 湘阴县林业局;中南林业科技大学经济林培育与保护省部共建教育部重点实验室;湖南省林业科学院;[李鹏; 吴立潮; 涂佳] 中南林业科技大学
关键词:
新造泡桐林;间作类型;土壤养分含量;生长量
摘要:
为了明确间作类型对土壤养分含量和新造泡桐林生长的影响,以湖南省湘阴县新造泡桐林为研究对象,设置泡桐与西瓜、白术、射干间作及对照4个处理,分析间作类型对泡桐林生长及其土壤养分含量的影响.结果表明:与对照处理相比,各间作处理均能显著降低0~ 20 cm土层土壤的养分含量(p<0.05),其中间作白术降低土壤有机质、全氮、全磷、全钾、有效磷、速效钾、钙、镁、铁、锰、铜和锌等养分的含量最为显著(p<0.05),分别降低了32.76%、7%、6.91%、12.97%、23.93%、31.72%、16.74%、34.65%、19.37%、19.03%、31.68%和56.82%.间作对20~ 40 cm土层土壤的养分含量影响不显著.与对照处理相比,各间作处理新造泡桐林胸径和树高的生长量(p<0.05)均为显著降低,其中间作白术的泡桐林胸径和树高的生长量减少最为显著,分别减少了29.25%和24.32%.泡桐林的生长量与土壤有机质、全磷、有效磷、速效钾、锰、铜的含量显著相关(p<0.05),泡桐生长受有效磷和锰含量的影响更大.综上所述,泡桐与西瓜、白术、射干等浅根作物间作显著降低了表层土壤养分的含量,且显著影响了新造泡桐胸径和树高的生长;间作白术降低土壤表层养分含量最为显著.间作类型对20 cm以下土层土壤养分含量影响不显著.因此,建议新造泡桐林不进行间作,当泡桐林吸收根系生长到土层20 cm以下时才开始开展间作工作.
语种:
中文
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Soil quality assessment under different Paulownia fortunei plantations in mid-subtropical China
作者:
Tu, Jia;Wang, Baoping;McGrouther, Kim;Wang, Hailong;Ma, Tianle;...
期刊:
Journal of Soils and Sediments ,2017年17(9):2371-2382 ISSN:1439-0108
通讯作者:
Wu, Lichao
作者机构:
[Tu, Jia; Wu, Lichao] Cent South Univ Forestry & Technol, Key Lab Cultivat & Protect Nonwood Forest Trees, Minist Educ, Shaoshan South Rd 498, Changsha 410004, Hunan, Peoples R China.;[Tu, Jia] Hunan Acad Forestry, Shaoshan South Rd 658, Chagnsha 410004, Hunan, Peoples R China.;[Tu, Jia; Wu, Lichao] Cent South Univ Forestry & Technol, Cooperat Innovat Ctr Cultivat & Utilizat Nonwood, Shaoshan South Rd 498, Changsha 410004, Hunan, Peoples R China.;[Tu, Jia; Wu, Lichao] Cent South Univ Forestry & Technol, Key Lab Nonwood Forest Prod, State Forestry Adm, Shaoshan South Rd 498, Changsha 410004, Hunan, Peoples R China.;[Qiao, Jie; Wang, Baoping] State Forestry Adm, Paulownia Res & Dev Ctr, Zhengzhou 450003, Henan, Peoples R China.
通讯机构:
[Wu, Lichao] C;Cent South Univ Forestry & Technol, Key Lab Cultivat & Protect Nonwood Forest Trees, Minist Educ, Shaoshan South Rd 498, Changsha 410004, Hunan, Peoples R China.;Cent South Univ Forestry & Technol, Cooperat Innovat Ctr Cultivat & Utilizat Nonwood, Shaoshan South Rd 498, Changsha 410004, Hunan, Peoples R China.;Cent South Univ Forestry & Technol, Key Lab Nonwood Forest Prod, State Forestry Adm, Shaoshan South Rd 498, Changsha 410004, Hunan, Peoples R China.
会议名称:
8th International Symposium on Forest Soils - Linking Soil Processes to Forest Productivity and Water Protection under Global Change
会议时间:
OCT 24-28, 2015
会议地点:
Fujian Normal Univ, Fuzhou, PEOPLES R CHINA
会议主办单位:
Fujian Normal Univ
关键词:
Factor analysis;Forest strands;Gray cluster relation analysis;Paulownia fortunei;Soil quality assessment;Soil quality index
摘要:
Purpose: Paulownia, one of the fastest growing broad-leaved tree species in the world, is widely distributed in the warm temperate regions of China. However, there are few commercial-scale Paulownia plantations, and there is only limited information available about the most suitable soil quality for Paulownia fortunei growth in mid-subtropical, Hunan Province, China. Materials and methods: To understand the effect of the growth of P. fortunei on soil conditions, 25 soil property parameters under Paulownia plantations were studied in Hunan Province, China. Seventy-two standard plots of eight different stand types were analyzed by three statistical approaches to assess soil quality (SQ) in the different P. fortunei plantations. Results and discussion: The results revealed that a majority of the soil characteristics when intercropping with oilseed rape and the pure P. fortunei (plantation III) were better than intercropping with Camellia oleifera, orange trees, and Cunninghamia lanceolata (Lamb.). Available calcium, available magnesium, available potassium, available phosphorus, soil thickness, slope, soil organic matter, available sulfur, available copper, dehydrogenase, and available zinc were selected as the minimum data set (MDS). The SQ index (SQI) showed that three classes for soil quality among the eight P. fortunei plantations ranged from 0.48 to 0.88 and these were correlated with standing volume (p < 0.05). Conclusions: From the results, we concluded that selected MDS indicators can describe the soil fertility quality of P. fortunei plantations, and that the relationship between SQI and standing volume has a biological significance. P. fortunei plantations intercropped with Camellia oleifera, orange trees, and Cunninghamia lanceolata (Lamb.) caused a deterioration in SQ, but intercropping oilseed rape and pure P. fortunei plantations produced an improvement in SQ. © 2016, Springer-Verlag Berlin Heidelberg.
语种:
英文
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施肥对泡桐人工林土壤微生物活性的影响
作者:
涂佳;付宇佳;朱志文;黄卫华;唐菲菲;...
期刊:
西南林业大学学报:自然科学 ,2017年37(2):109-115 ISSN:2095-1914
作者机构:
中南林业科技大学经济林培育与保护省部共建教育部重点实验室经济林培育与利用湖南省;湖南省林业科学研究院;[黄卫华; 朱志文] 湘阴县林业局;[付宇佳; 吴立潮; 涂佳; 唐菲菲] 中南林业科技大学
关键词:
泡桐;人工林;施肥;土壤酶活性;微生物量
摘要:
为明确不同施肥处理对泡桐人工林土壤微生物特性的影响,以湖南省4年生泡桐人工林土壤为研究对象,分析4种不同施肥处理下土壤酶活性及土壤微生物量的变化,以及土壤微生物量、土壤微生物酶与土壤化学指标之间的关系,并对其主成分进行分析。结果表明:3种施肥处理显著改变了土壤中过氧化氢酶、脲酶、酸性磷酸酶和蔗糖酶的活性,其中专用肥对脲酶、酸性磷酸酶和蔗糖酶活性提高更为显著,相比不施肥对照,分别提高了79.01%,72.40%和230.76%。3种施肥处理显著提高了土壤微生物的生物量,其中专用肥处理对泡桐人工林土壤微生物量碳和氮提高最为显著,相比对照处理,微生物量碳提高了321.02%,微生物量氮提高了386.87%。泡桐在专用肥处理下,除p H外,土壤养分与土壤酶活性呈现正相关;土壤微生物量碳、氮、磷与土壤酶活性呈现正相关;土壤微生物量碳、氮、磷与土壤养分呈现正相关。专用肥对土壤微生物活性和化学指标产生的影响最大。
语种:
中文
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以激发学习兴趣为导向的土壤学实验课程改革与实践
作者:
袁军;吴立潮;张斌
期刊:
科教导刊 ,2017年(04):95-96 ISSN:1674-6813
作者机构:
中南林业科技大学林学院 湖南·长沙 410004;[袁军; 吴立潮; 张斌] 中南林业科技大学
关键词:
兴趣导向;土壤学;课程改革;实验教学
摘要:
针对进一步深造和林业生产需要对高级专门人才培养的需求,从中南林业科技大学林学院现有的条件和实际情况出发,对土壤学实验课程的教学理念、课程体系、考核考评等方面进行了认真的探索与实践。教研组秉承以兴趣为导向的教学理念,依托科研平台、科研项目和检测平台的反哺作用,建立了以林地土壤肥力利用与评价为重点,包含基础型试验、验证型试验和探索性试验的土壤学实验课程体系,以及'三评一考查'的多元化考评方式,提高了学生对实验课程的学习兴趣和教学质量。
语种:
中文
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莽山不同次生林土壤有机碳分布与土壤物理性质的相关性
作者:
邓艳林;陈芳芳;张景;唐菲菲;何介南;...
期刊:
南方农业学报 ,2017年48(4):616-622 ISSN:2095-1191
作者机构:
[邓艳林; 陈芳芳; 张景; 唐菲菲; 何介南; 吴立潮] 中南林业科技大学, 经济林培育与保护湖南省省部共建教育部重点实验室;[邓艳林; 陈芳芳; 张景; 唐菲菲; 何介南; 吴立潮] 经济林育种与栽培国家林业局重点实验室;[邓艳林; 陈芳芳; 张景; 唐菲菲; 何介南; 吴立潮] 经济林培育与利用湖南省2011协同创新中心, 长沙, 410004
关键词:
次生林;土壤有机碳(SOC);土壤物理性状;莽山国家森林公园
摘要:
[目的]探讨湖南莽山国家级自然保护区三类次生林土壤有机碳(SOC)分布特征与土壤物理性质的关系,为该地区森林土壤碳储量的准确计量及森林土壤固碳增汇提供参考依据.[方法]在海拔1230~1300 m区域内的杉木、粤松林和竹林内设9个固定标准地,采集不同层次土壤样品32个,测定其SOC、土壤容重及田间持水量,运用方差分析、相关分析及回归分析法研究不同植被类型SOC分布特征及其与土壤容重和田间持水量间的关系.[结果]杉、松、竹三类林地不同土层SOC含量存在显著差异(P<0.05,下同),随土壤深度增加呈递减趋势;不同林分变化幅度差异不同,且各土层间的差异达显著水平.三类林地0~40 cm土层SOC存贮有机碳在整个土层所占比重不同,分别为77.7%、77.1%和85.9%.经回归分析发现,杉、松、竹三类林地SOC和土壤容重拟合值R分别为0.632、0.727和0.615,杉木林SOC含量与土壤容重呈极显著相关(P<0.01,下同);三类林地SOC含量与田间持水率均呈极显著或显著正相关.方差分析结果表明,黏粒、粉粒、砂粒含量在同一土层中的三类林地间存在极显著差异;黏粒、粉粒、砂粒含量与SOC含量相关不显著(P>0.05),而砂粒与黏粒、粉粒存在极显著负相关.杉、松、竹三类林地砂粒含量在土壤垂直剖面各层均高于黏粒、粉粒含量.[结论]莽山不同次生林SOC与土壤物理性质密切相关,土壤容重、田间持水量、土壤机械组成等物理性质可作为营林和增加森林土壤碳汇的参考指标.
语种:
中文
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Soil quality assessment of different Camellia oleifera stands in mid-subtropical China
作者:
Liu, Jie;Wu, Lichao* ;Chen, Dong;Li, Ming;Wei, Changjiang
期刊:
Applied Soil Ecology ,2017年113:29-35 ISSN:0929-1393
通讯作者:
Wu, Lichao
作者机构:
[Liu, Jie; Chen, Dong; Wu, Lichao] Cent South Univ Forestry & Technol, Natl Minist Educ, Coll Forestry, Key Lab Cultivat & Protect Nonwood Forest Trees, Shaoshan South Rd 498, Changsha 410004, Hunan, Peoples R China.;[Li, Ming; Wei, Changjiang] Sanmenjiang State Owned Forest Farm, Liuzhou 545006, Peoples R China.;[Wu, Lichao] Cent South Univ Forestry & Technol, Coll Forestry, Changsha, Hunan, Peoples R China.
通讯机构:
[Wu, Lichao] C;Cent South Univ Forestry & Technol, Coll Forestry, Changsha, Hunan, Peoples R China.
关键词:
Association degree;Camellia oleifera;Soil biological indicators;Soil quality evaluation;Soil quality index;Yield
摘要:
Camellia oleifera is a woody oil plant, which suffers from low yields in mid-subtropical areas of China. While increasing yields plays an important role in the development and security of the national edible oil industry, scientific evaluation of soil quality, which is essential for improving yields, has not yet been conducted for C. oleifera. To study soil quality and determine the factors limiting yields, 60 soil samples were collected from plantation stands producing different oil yields in mid-subtropical China. Thirty-two physical, chemical, and biological properties of soil were examined based on a one-way analysis of variance, canonical correspondence analysis (CCA) and principal component analysis (PCA). In addition, soil quality was assessed by the soil quality index (SQI) and grey relational analysis (GRA). Significantly high values were found for most properties in the high oil yield soil (HYS) samples, including soil organic matter (SOM), total nitrogen (TN), available calcium (ACa), available boron (AB), microbial biomass carbon (MBC), microbial biomass phosphorus (MBP), bacteria, actinomycetes, total phosphatase (TOP), and urease. Conversely, available P (AP), available potassium (AK), and AB were depleted in the low oil yield soil (LYS) samples. Five soil indicators, namely SOM, AP, ACa, MBC, and catalase, were selected to establish a minimum data set. From this, soil quality was ranked as HYS > medium oil yield soil (MYS) > LYS, with SQI values of 0.65, 0.46, and 0.38, respectively. A similar trend was observed for the GRA results. A significant correlation (coefficient value of 0.699) was found between the SQI and oil yield. With higher SQI scores and a higher association degree, HYS had a greater nutrient supply and microbiological activity than MYS and LYS. SOM appeared to be the limiting factor for low oil yield, with deficiencies in AP found to be major constraints of yield in mid-subtropical China. Measures to improve the AB and AK content should also be considered in the study areas. © 2017 Elsevier B.V.
语种:
英文
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基于灰色关联分析的湘西北石漠化区土壤质量评价
作者:
唐菲菲;邓艳林;郑茂;郭徽;曹福祥;...
期刊:
中南林业科技大学学报 ,2016年36(9):36-43 ISSN:1673-923X
作者机构:
中南林业科技大学, 经济林培育与保护湖南省省部共建教育部重点实验室;[唐菲菲; 邓艳林; 郑茂; 郭徽; 吴立潮] 经济林育种与栽培国家林业局重点实验室;[唐菲菲; 邓艳林; 郑茂; 郭徽; 吴立潮] 经济林培育与利用湖南省2011协同创新中心, 湖南, 长沙, 410004;中南林业科技大学生命科学与技术学院, 湖南, 长沙, 410004;[唐菲菲; 邓艳林; 郑茂; 郭徽; 吴立潮] 中南林业科技大学, 经济林培育与保护湖南省省部共建教育部重点实验室
关键词:
石漠化;土壤肥力;灰色关联分析;质量评价;湘西北
摘要:
在对湖南省西北部3县4种不同石漠化程度的13个样地进行植被调查及土壤样品分析的基础上,采用主成分分析和指标相关性分析的方法,构建了评价土壤肥力的土壤属性指标的最小数据集,并对30项土壤属性指标进行分析,通过灰色关联度分析法最终确定了各样地的土壤质量得分。结果表明:(1)湘西北石漠化区土壤肥力质量综合评价的最小数据集(MDS)为:土层厚度(ST)、A 层厚度(AT)、土壤粗粉粒(Silt-1)、总孔隙度(BP)、全氮(TN)、有效钾(AK)、阳离子交换量(CEC)、微生物量氮(MBN)、微生物量磷(MBP)、 C/N 比。(2)潜在石漠化、轻度石漠化、中度石漠化、重度石漠化对应等级下的土壤肥力灰色关联度均值分别为0.649、0.523、0.555、0.519,表现为潜在石漠化>中度石漠化>轻度石漠化>重度石漠化。(3)石门、慈利、龙山三地的石漠化区土壤肥力质量综合加权关联度值得分分别为0.571、0.555、0.550,表现为石门>慈利>龙山,其变异系数为1.90%。(4)TN 和BP 与各样地加权关联度值显极显著相关(P < 0.01)。结果表明湘西北石漠化区石漠化等级越高,其土壤肥力质量越低;石门、慈利和龙山三地之间整体质量虽有区别,但差异并不大;在湘西北石漠化区土壤肥力质量综合评价体系中,TN 和BP 对湘西北石漠化区的土壤质量影响最大。
语种:
中文
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长期施肥对第四纪红壤泡桐林蓄积量及基础地力的影响
作者:
涂佳;甘卫祥;付宇佳;唐菲菲;吴立潮
期刊:
中南林业科技大学学报 ,2016年36(11):14-21 ISSN:1673-923X
作者机构:
[涂佳; 甘卫祥; 付宇佳; 唐菲菲; 吴立潮] 中南林业科技大学, 经济林培育与保护湖南省省部共建教育部重点实验室;[涂佳; 甘卫祥; 付宇佳; 唐菲菲; 吴立潮] 经济林培育与利用湖南省2011协同创新中心, 湖南, 长沙, 410004
关键词:
泡桐人工林;不同施肥;基础地力贡献率;肥料贡献率
摘要:
泡桐是世界上最速生的3大用材树种之一,主要分布在我国黄淮海地区,它材质优良,深受广大林农喜爱。然而,泡桐在中亚热带还没有形成规模化种植,适宜的施肥方式尚不清楚。为了明确中亚热带第四纪红壤地区,长期施肥对泡桐地力和蓄积量的影响,本研究以湖南湘阴县新造人工林为研究对象,设置了泡桐专用肥,普通商业肥和对照3个处理,采用完全随机区组设计排列,重复3次,连续10年观测,分析了造林以来不同施肥处理对桐林蓄积量及基础地力的影响。连续10年的观测表明:(1)施肥能显著提高泡桐蓄积量,且施用专用肥蓄积量增长效果更为显著;造林后第1 ~ 3年,泡桐专用肥与普通商业肥的增产效果间无显著差异,但从第4年开始施用专用肥蓄积量增长效果更为显著,到造林的第10年,施用专用肥的泡桐蓄积量明显优于商业肥,比施用商业肥的蓄积量提高了28.27%,比对照提高了127%。(2)施用专用肥和商业肥土壤地力贡献率在泡桐种植10年后分别下降了57.4%和:35.5%,并于造林第5年后,泡桐人工林土壤地力贡献率和土壤肥料贡献力变化趋于稳定。(3)不同施肥对泡桐蓄积量稳定性及可持续性差异显著,其中施用专用肥后有利于泡桐蓄积量的稳定和持续性增长。(4)与商业肥和对照相比施用专用肥能显著提高土壤有机质、有效磷和速效钾含量,而全氮含量变化不显著。综上所述,施肥能有效提高泡桐蓄积量,且施用泡桐专用肥的效果明显优于普通商业肥。泡桐专用肥显著地提高了土壤肥料的贡献率,泡桐蓄积量稳定和可持续性增长以及土壤部分养分含量的提高。
语种:
中文
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富硒茶油的硒含量对其品质及功能性成分的影响
作者:
宋亚蕊;蒋新革;彭邵锋;李福初;刘娟;...
期刊:
中国食品学报 ,2015年15(1):142-149 ISSN:1009-7848
通讯作者:
Liu, Fang
作者机构:
[吴立潮; 宋亚蕊; 陈冬] Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees, Central South University of Forestry and Technology, Ministry of Education, Changsha, China;[刘娟; 宋亚蕊; 刘芳] College of Food &, National Engineering Laboratory of Rice and By-product Deep Processing, Central South University of Forestry &, Technology, Changsha, China;[李福初] Changsha Fosumn Agricultural Science &, Technology Co., Changsha, China;[彭邵锋] Forestry &, Science Research Institute of Hunan Province, Changsha, China;[蒋新革] San Men-jiang state-owned Forest, Guangxi Zhuang Autonomous Region, Liuzhou, Guangxi, China
通讯机构:
College of Food & National Engineering Laboratory of Rice and By-product Deep Processing, Central South University of Forestry & Technology, Changsha, China
关键词:
茶油;硒;品质特性;功能性成分
摘要:
对不同富硒茶油的品质特性及功能性成分进行分析,结果表明:茶油中硒含量不同,其品质特性及功能性成分也不尽相同。随着茶油中硒含量的增加,其亚油酸、亚麻酸和甾醇的含量显著提高,油酸的含量则有所降低;角鲨烯的含量在低硒水平有所提高,而在高硒水平呈下降的趋势;α-生育酚的含量与硒的含量没有显著的相关性。这些研究结果显示:硒含量的高低对茶油的品质及功能特性有一定的影响。
语种:
中文
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油茶林土壤生物特性与产量的关系
作者:
陈冬;刘洁;何媛媛;杨雅惠;吴立潮
期刊:
南方农业学报 ,2015年46(4):581-586 ISSN:2095-1191
作者机构:
[陈冬; 杨雅惠; 吴立潮; 刘洁] 中南林业科技大学;广西国有三门江林场;[何媛媛] 广西壮族自治区国有三门江林场
关键词:
油茶;生物特性;产油量;根际土;酶活性
摘要:
[目的]探讨油茶林土壤酶活性和微生物数量与油茶产量之间的关系,为油茶林地土壤肥力质量评价指标的选择提供依据.[方法]以盛果期油茶成林为试验对象,在湖南邵阳县的油茶主产区选取11个样地,运用方差分析、相关分析和因子分析等方法探讨油茶林根际土壤与非根际土壤的生物特性差异以及油茶林土壤酶活性、微生物量与产量的关系.[结果]过氧化氢酶活性在根际土与非根际土之间差异显著(P<0.05,下同);碱性磷酸酶、总磷酸酶、脲酶活性和细菌、真菌、放线菌数量在根际土与非根际土之间均有极显著差异(P<0.01,下同).在油茶林根际土壤中,酸性磷酸酶、过氧化氢酶活性和真菌数量在高产与低产间差异显著,高产区酸性磷酸酶、过氧化氢酶活性和真菌数量的均值分别比低产区高31.8%、44.7%和109.3%;中性磷酸酶、总磷酸酶、脲酶活性在高产区与低产区间有极显著差异,高产区中性磷酸酶、总磷酸酶、脲酶活性的均值分别比低产区高38.3%、31.7%和48.5%.油茶林根际土壤过氧化氢酶、总磷酸酶、酸性磷酸酶、中性磷酸酶、脲酶活性和真菌、细菌、放线菌数量分别与产量显著相关或极显著相关.[结论]油茶林土壤生物特性与产量密切相关.总磷酸酶、酸性磷酸酶、中性磷酸酶、过氧化氢酶、脲酶活性和真菌、细菌、放线菌数量可考虑作为油茶林土壤肥力质量评价指标.
语种:
中文
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施肥富硒对茶油主要化学特性及功能性成分的影响
作者:
马小灵;唐维龙;刘洁;刘娟;吴立潮;...
期刊:
食品科技 ,2015年40(11):148-154 ISSN:1005-9989
作者机构:
中南林业科技大学教育部经济林培育与保护重点实验室;[唐维龙] 广西壮族自治区国有三门江林场;中南林业科技大学食品科学与工程学院稻谷及副产物深加工国家工程实验室;[刘娟; 马小灵; 刘芳; 吴立潮; 刘洁] 中南林业科技大学
关键词:
油茶;茶油;施肥富硒;人工转化富硒;化学特性;功能性成分
摘要:
富硒茶油兼具茶油与硒的营养保健功能,施肥富硒不仅能达到富硒的目的,而且对茶油品质也有所影响.根据前期研究改良了施肥富硒方案,进一步探究施肥富硒对茶油品质的影响,为茶油施肥富硒技术的研究及施肥富硒茶油的推广提供科学依据.结果表明:(1)改良后的富硒方案显著提高了茶油中的硒含量,平均硒含量为0.0422 mg/kg,显著高于对照组茶油.(2)随着茶油硒含量的提高,其过氧化值、酸值均随之降低,氧化稳定性增强.(3)茶油碘值、皂化值、脂肪酸组成并未随着硒含量的提高呈现一定规律.(4)富硒茶油的平均角鲨烯含量、总甾醇(豆甾醇和谷甾醇)含量分别为9.636、38.351 mg/100 g,显著高于对照组茶油,且随着硒含量的增加,茶油中角鲨烯和总甾醇量均显著升高.施肥富硒可显著提高茶油的硒含量及功能性成分,增强其抗氧化能力,进一步提高茶油品质.
语种:
中文
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Evaluation of soil fertility in the succession of karst rocky desertification using principal component analysis
作者:
Xie, L. W.;Zhong, J.;Chen, F. F.;Cao, F. X.;Li, J. J.;...
期刊:
SOLID EARTH ,2015年6(2):515-524 ISSN:1869-9510
通讯作者:
Wu, L. C.
作者机构:
[Chen, F. F.; Zhong, J.; Xie, L. W.; Wu, L. C.; Li, J. J.] Cent South Univ Forestry & Technol, Minist Educ, Key Lab Cultivat & Protect Nonwood Forest Trees, Changsha 410004, Hunan, Peoples R China.;[Cao, F. X.] Cent South Univ Forestry & Technol, Coll Life Sci & Technol, Changsha 410004, Hunan, Peoples R China.
通讯机构:
[Wu, L. C.] C;Cent South Univ Forestry & Technol, Minist Educ, Key Lab Cultivat & Protect Nonwood Forest Trees, Changsha 410004, Hunan, Peoples R China.
摘要:
Expanding of karst rocky desertification (RD) area in southwestern China is strangling the sustainable development of local agricultural economy. It is important to evaluate the soil fertility at RD regions for the sustainable management of karst lands. The changes in 19 different soil fertility-related variables along a gradient of karst rocky desertification were investigated in five different counties belonging to the central Hunan province in China. We used principal component analysis method to calculate the soil data matrix and obtained a standardized integrate soil fertility (ISF) indicator to reflect RD grades. The results showed that the succession of RD had different impacts on soil fertility indicators. The changing trend of total organic carbon (TOC), total nitrogen (TN), available phosphorus, microbial biomass carbon (MBC), and microbial biomass nitrogen (MBN) was potential RD (PRD) >light RD (LRD) >moderate RD (MRD) >intensive RD (IRD), whereas the changing trend of other indicators was not entirely consistent with the succession of RD. The degradation trend of ISF was basically parallel to the aggravation of RD, and the strength of ISF mean values were in the order of PRD >LRD >MRD >IRD. The TOC, MBC, and MBN could be regarded as the key indicators to evaluate the soil fertility. ©Author(s) 2015.
语种:
英文
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Effects of trunk-extension pruning at different intensities on the growth and trunk form of Paulownia fortunei
作者:
Wu, Lichao;Wang, Baoping* ;Qiao, Jie;Zhou, Haijiang;Wen, Ruijun;...
期刊:
Forest Ecology and Management ,2014年327:128-135 ISSN:0378-1127
通讯作者:
Wang, Baoping
作者机构:
[Wu, Lichao] Cent South Univ Forestry & Technol, Minist Educ, Key Lab Cultivat & Protect Non Wood Forest Trees, Changsha 410004, Hunan, Peoples R China.;[Zhou, Haijiang; Wen, Ruijun; Li, Zongran; Qiao, Jie; Wang, Baoping] State Forestry Adm, Paulownia Res & Dev Ctr, Zhengzhou 450003, Henan, Peoples R China.;[Xue, Jianlin] State Owned Liangyuan Forest Farm, Shangqiu City 476000, Henan, Peoples R China.
通讯机构:
[Wang, Baoping] S;State Forestry Adm, Paulownia Res & Dev Ctr, Zhengzhou 450003, Henan, Peoples R China.
关键词:
Overgrowth;Paulownia plantation;Pruning intensity;Trunk form;Trunk growth;Trunk-extension pruning
摘要:
Many species within the Paulownia genus display pseudo-dichotomous branching patterns in temperate and subtropical regions, reducing the economic value of the trunk and plantations as a whole. This unfavorable branching pattern can be corrected by optimal pruning with trunk-extension to achieve improved trunk volume and form for timber production. However, the most advantageous pruning intensity for maximizing trunk volume and form remains unclear. To establish best pruning techniques to promote trunk-extension, six pruning intensity treatments were applied in a three-year-old Paulownia fortunei plantation in Henan, China. For each treatment, sixteen dimensional trunk growth and form properties were measured for eight subsequent years after pruning. Results revealed that branches developed from the adventitious or latent buds near the top of the main trunk exhibited overgrowth and developed into an extended trunk. Mean trunk heights in treatments T<inf>1</inf> to T<inf>5</inf> were 8.6, 9.1, 9.4, 9.5, and 9.2m, respectively, which were significantly higher than that in the control (CK). Trunk-extension pruning significantly increased trunk height. Eight years of continuous observation showed that the extended trunk height of P. fortunei did not further increase by the end of first year after pruning. Based on measures for quantifying the effects of pruning on trunk volume and form, moderate-intensity pruning treatments T<inf>3</inf> and T<inf>4</inf> were found to be the most appropriate for promoting trunk extension. From the above results, we concluded that moderate-intensity pruning promoted rapid growth of the budding branch and its further development into an extended trunk. Moderate-intensity pruning on three-year-old P. fortunei trees not only significantly increased trunk height and ensured normal growth of the original trunk, but also significantly improved trunk form and increased total trunk volume. ©2014 Elsevier B.V.
语种:
英文
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富硒茶油的抗氧化活性成分分析及氧化稳定性探究
作者:
刘娟;宋亚蕊;唐维龙;李福初;陈冬;...
期刊:
食品与发酵工业 ,2014年40(4):82-86 ISSN:0253-990X
作者机构:
[刘娟; 宋亚蕊; 刘芳] 中南林业科技大学食品科学与工程学院;[唐维龙] 广西国有三门江林场;[李福初] 湖南省长沙福山农业科技有限公司;[陈冬; 吴立潮] 中南林业科技大学林学院
关键词:
茶油;富硒;抗氧化;氧化稳定性
摘要:
对不同富硒茶油的天然抗氧化活性成分及其氧化稳定性指标值进行了分析研究。结果表明:富硒茶油天然抗氧化活性成分的含量多数比普通茶油高,而其过氧化值,酸值和共轭二烯值均比普通茶油低,说明其氧化稳定性较好,这是因为硒促进了茶油中的天然抗氧化活性成分合成积累,同时硒也对自由基产生富集加合作用,两者共同作用,使其氧化稳定性提高。
语种:
中文
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Experimental determination and modeling of the solubility of CaSO 4·2H2O and CaSO4 in the quaternary system CaSO4 + MgSO4 + H2SO4 + H2O
作者:
Wang, Wenlei;Zeng, Dewen* ;Wang, Juntao;Li, Hongliang;Wu, Lichao
期刊:
Industrial & Engineering Chemistry Research ,2014年53(32):12839-12847 ISSN:0888-5885
通讯作者:
Zeng, Dewen
作者机构:
[Wang, Wenlei; Zeng, Dewen] Cent South Univ Forestry & Technol, Coll Sci, Minist Educ, Changsha 410004, Hunan, Peoples R China.;[Wu, Lichao] Cent South Univ Forestry & Technol, Key Lab Cultivat & Protect Nonwood Forest Trees, Minist Educ, Changsha 410004, Hunan, Peoples R China.;[Wang, Juntao; Wang, Wenlei; Li, Hongliang; Zeng, Dewen] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Peoples R China.
通讯机构:
[Zeng, Dewen] C;Cent South Univ Forestry & Technol, Coll Sci, Minist Educ, Changsha 410004, Hunan, Peoples R China.
摘要:
A theoretical and experimental investigation of solubility of gypsum and anhydrite II in the complex system CaSO4 + MgSO4 + H 2SO4 + H2O was conducted from 298.1 to 363.1 K. The solubility of anhydrite II in (MgSO4 + H2SO 4) aqueous solutions was determined at 348.1 and 363.1 K by an isothermal method. A Pitzer thermodynamic model was selected to predict the solubility of gypsum and anhydrite II in the titled quaternary system. Good agreement between the experimental and the model values was observed, which supports the reliability of the model prediction. As predicted by the model, the transfer temperature from gypsum to anhydrite II decreases with increasing H2SO4 and MgSO4 concentrations, and the solubilities of gypsum and anhydrite II decrease monotonically with increasing MgSO4 concentration if H2SO4 concentration is higher than 0.5 mol·kg-1. On the basis of the results obtained, several suggestions for avoiding calcium sulfate scaling in the industrial process were proposed. © 2014 American Chemical Society.
语种:
英文
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富硒油茶籽主要营养成分及富硒油茶籽油的抗氧化活性研究
作者:
宋亚蕊;刘娟;彭邵锋;李福初;刘芳;...
期刊:
中国油脂 ,2014年39(10):39-44 ISSN:1003-7969
作者机构:
[宋亚蕊; 刘娟; 刘芳] 中南林业科技大学食品科学与工程学院;[彭邵锋] 湖南省林业科学研究院;[李福初] 湖南省长沙福山农业科技有限公司;[吴立潮] 中南林业科技大学
关键词:
油茶籽;油茶籽油;硒;营养成分;抗氧化活性
摘要:
对不同富硒油茶籽的主要营养成分及富硒油茶籽油的抗氧化功能性成分和抗氧化活性指标进行了分析。结果表明:硒含量对油茶籽的营养成分及油茶籽油的抗氧化活性有一定的影响,随硒含量的增加,油茶籽的灰分、淀粉含量和蛋白质含量增加,水分含量下降; 油茶籽油中的甾醇含量随硒含量的增加而升高,角鲨烯的含量先增加后减少; 硒含量的增加能够显著提高油茶籽油的抗氧化活性。
语种:
中文
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