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不同林地恢复模式下露天煤矿排土场 土壤有机碳分布特征
文月荣1; 党廷辉1,2; 唐骏2; 李俊超1
2016
Source Publication应用生态学报
Volume27Issue:1Pages:83-90
Abstract

研究露天煤矿排土场6 种不同林地植被恢复模式和撂荒地0~100 cm 土层土壤有机
碳( SOC) 含量和储量的分布特征,分析其差异性及其影响因素.结果表明: 不同林地0 ~ 10 cm
土层SOC 含量比撂荒地( 1.92 g·kg-1 ) 显著提高23.8% ~ 53.2%,10 ~ 20 cm 土层比撂荒地
( 1.39 g·kg-1 ) 显著提高5.8%~ 70.4%,20 cm 土层以下与撂荒地相比差异不大; 各土层SOC
含量随土层深度增加而逐渐减小,表层( 0~20 cm) 减小幅度大于深层( 20~100 cm) .不同林地
SOC 储量在表层明显高于深层,随土层深度增加而逐渐减小.0~100 cm 土层林地SOC 储量比
撂荒地( 17.52 t·hm-2 ) 提高18. 1% ~ 42. 4%,其中,紫穗槐林地SOC 储量最高,达24. 95
t·hm-2,明显高于其他林地类型,灌木林地SOC 储量比乔木高12.4%.林地凋落物、细根生物
量和土壤水分都与排土场SOC 呈显著正相关.综上所述,不同人工林地恢复模式显著提高了
排土场0~100 cm 土层SOC,尤其对表层SOC 提高效果明显,但排土场SOC 与原地貌相比差
距仍较大.从提高排土场SOC 角度优先推荐紫穗槐为主要林地植被.

Other Abstract

The content and storage of soil organic carbon ( SOC) were compared in six wood restoration
modes and adjacent abandoned land on opencast coal mine dump,and the mechanisms behind
the differences and their influencing factors were analyzed. Results showed that the contents of
SOC in six wood lands were significantly higher ( 23. 8%- 53. 2%) than that of abandoned land
( 1.92 g·kg-1 ) at 0-10 cm soil depth,the index were significantly higher ( 5.8%-70.4%) at 10-
20 cm soil depth than the abandoned land ( 1.39 g·kg-1 ) ,and then the difference of the contents
of SOC in the deep soil ( 20-100 cm) were not significant. The contents of SOC decreased with increase
of soil depth,but the decreasing magnitude of the topsoil ( 0-20 cm) was higher than that of
the deep soil ( 20-100 cm) . Compared with the deep soil,the topsoil significant higher storage of
SOC in different woods,the SOC storage decreased with the soil depth. Along the 0-100 cm soil
layer,the storage of SOC in six wood lands higher ( 18.1%-42.4%) than that of the abandoned
land ( 17.52 t·hm-2 ) . The SOC storage of Amorpha fruticosa land ( 24.95 t·hm-2 ) was obviously
higher than that in the other wood lands. The SOC storage in the shrub lands was 12.4% higher than
that of the arbor woods. There were significantly positive correlations among forest litter,fine root
biomass,soil water content and SOC on the dump. Consequently,different plantation restorations
significantly improved the SOC level on the dump in 0 - 100 cm soil,especially the topsoil. But
there was still a big gap about SOC level between the wood restoration lands and the original landform.
To improve the SOC on opencast coal mine dump,A. fruticosa could be selected as the main
wood vegetation.

Keyword露天煤矿排土场 林地恢复模式 Soc 含量 Soc 储量
Indexed By中文核心期刊要目总览
Language中文
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8717
Collection水保所知识产出(1956---)
Affiliation1.西北农林科技大学资源环境学院
2.中国科学院水利部水土保持研究所
Recommended Citation
GB/T 7714
文月荣,党廷辉,唐骏,等. 不同林地恢复模式下露天煤矿排土场 土壤有机碳分布特征[J]. 应用生态学报,2016,27(1):83-90.
APA 文月荣,党廷辉,唐骏,&李俊超.(2016).不同林地恢复模式下露天煤矿排土场 土壤有机碳分布特征.应用生态学报,27(1),83-90.
MLA 文月荣,et al."不同林地恢复模式下露天煤矿排土场 土壤有机碳分布特征".应用生态学报 27.1(2016):83-90.
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