[1]程达,李晨光,李玉灵*,等. 铁尾矿基质下2种人工灌木林特征及其土壤结构改良效益分析[J].西北林学院学报,2018,33(4):36-43.[doi:10.3969/j.issn.1001-7461.2018.04.06]
　CHENG Da,LI Chen-guang,LI Yu-ling*,et al. Characteristics and Benefit of Soil Structure Improvement of Planting Two Shrubs in Iron Mining Tailings[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2018,33(4):36-43.[doi:10.3969/j.issn.1001-7461.2018.04.06]
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 铁尾矿基质下2种人工灌木林特征及其土壤结构改良效益分析()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第33卷
期数:
2018年第4期
页码:
36-43
栏目:
出版日期:
2018-07-31

文章信息/Info

Title:
 Characteristics and Benefit of Soil Structure Improvement of Planting Two Shrubs in Iron Mining Tailings
文章编号:
1001-7461(2018)04-0036-08
作者:
 程达1; 李晨光2; 李玉灵1*; 钟林娟3; 李晓刚1; 杨晔1; 张金玲1
 （1.河北农业大学 林学院，河北 保定 071000；2.北京来美园林景观工程有限公司，北京 100000；3.安国市林业局，河北 保定 071000）
Author(s):
 CHENG Da1; LI Chen-guang2; LI Yu-ling1*; ZHONG Lin-juan3; LI Xiao-gang1; YANG Ye1; ZHANG Jin-ling1
 (1.College of Forestry,Agricultural University of Hebei ,Baoding,Hebei 071000,China; 2.Beijing Laimei Landscape Engineering Co.,Ltd.,Beijing 100000,China；3.Anguo Forstry Bureau,Baoding,Hebei 071000,China)
关键词:
 ; 铁尾矿; 灌木群落; 紫穗槐; 沙地柏; 土壤结构改良
Keywords:
 ; Iron tailings;  shrub community;  Amorpha fruticosa;  Sabina vulgaris;  soil structure improvement
分类号:
S714.6
DOI:
10.3969/j.issn.1001-7461.2018.04.06
文献标志码:
A
摘要:
 为了解植被恢复对尾矿生态修复效益，以铁尾矿区人工造林的沙地柏（Sabina vulgaris）、紫穗槐（Amorpha fruticosa）灌木林为研究对象，以裸尾矿为对照，调查林分垂直结构、林内植物多样性、生物量，并测定土样粒径分布、团聚体含量等物理性质。结果表明：1）2种人工灌木林群落结构简单，垂直结构均分为灌木层和草本层。物种组成不丰富，物种多样性指数、丰富度指数和均度指数均表现为紫穗槐林>沙地柏林。紫穗槐林总生物量（20.78 t/hm2）约为沙地柏林总生物量（7.31 t/hm2）的3倍。相对来说紫穗槐林下草本发育的更好，生长状况优于沙地柏林。2）2种灌木林下土壤粒径含量分布均为250 μm左右的砂粒含量最多，30 μm以下的粉粒含量较少，2 μm以下的粘粒最少。沙地柏林10~40 cm处＜150 μm的细粒物质较多，紫穗槐林下0~10 cm土壤＜150 μm的细粒物质较多。裸尾矿随深度增加，＞250 μm粒径的粗粒物质含量增加。3）紫穗槐林地土壤0~60 cm大团聚体（0.25 mm＜d＜10 mm）总含量最高（29.3%）、沙地柏林地次之（28.7%）、裸尾矿样地最低（18.3%）。沙地柏林随土壤深度增加，大团聚体含量呈现增加趋势；紫穗槐林0~10 cm表层土壤的大团聚体含量较高，裸尾矿随深度无明显变化。
Abstract:
 In order to understand the benefits of vegetation restoration to the ecological remediation of wasted mining tailings,stands of two shrub species (Sabina vulgaris and Amorpha fruticosa) that were planted in iron mining tailings were used as research objects,untreated tailings were used as the control,the vertical structure,plant diversity and biomass of planted shrubs were investigated,and soil physical properties such as soil particle size distribution and aggregate content were measured.It was observed that 1) two planted shrubs had simple community structure,and their vertical structure both included shrub layer and herb layer.Species composition of two planted shrubs was not rich enough.The species diversity index,richness index and evenness index of A.fruticosa.were higher than those of S.vulgaris,and the total biomass of A.fruticosa (20.78 t/hm2) was about 3 times of that of S.vulgaris（7.31 t/hm2）.Comparing with S.vulgaris,A.fruticosa had better growth condition and herbs development.2)The soil particle-size distributions of the soils in which the two shrubs were planted were the same,the content of sand particle with 250 μm was the most one,the content of powder particle less than 30 μm was less,and the content of clay particle less than 2 μm was less too.S.vulgaris had more fine-grained material less than 150 μm in 10-40 cm layer,and A.fruticosa shrub had more fine-grained material less than 150 μm in 0-10 cm layer.The content of coarse-grained material more than 250 μm increased by the increase of bare tailings depth.3) The total content of macro aggregate of A.fruticosa（0.25 mm＜d＜10 mm,29.3%）was higher than S.vulgaris had less（28.7%),and bare tailings had least（18.3%）.With the increase of soil depth,the content of macro aggregate of S.vulgaris had an increasing trend,while that of A.fruticosa was higher in surface soil (0-10 cm),and no significant changes in bare tailings.

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备注/Memo

备注/Memo:
 收稿日期：2017-08-23修回日期：2017-10-19
基金项目：“十二五”环境领域国家科技计划项目(2012BAC09B03)；河北省科技支撑计划项目(11236713D-X)。
作者简介：程达，男，在读硕士，研究方向：退化生态系统恢复。E-mail：chengda1229@126.com
*通信作者：李玉灵，女，博士，教授，研究方向：退化生态系统恢复、水土保持。 E-mail：liyuling0425@126.com
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