| 毛乌素沙地3种人工植被类型对土壤颗粒组成和 固碳的影响 |
| 王丽梅; 张谦; 白利华; 马爱生; 张红
|
| 2020
|
发表期刊 | 水土保持研究
|
卷号 | 27期号:1页码:88-94 |
摘要 | 植被恢复会对干旱半干旱区土壤固碳过程产生重要影响,探讨植被恢复对不同土壤颗粒碳含量的影响有利
于进一步揭示荒漠土壤演变过程。选择毛乌素沙地东南缘人工植被恢复区的乔木林、灌木林、草地和流沙地为样地,
对 0 — 30cm 的土壤进行了分层取样分析。结果表明:乔木、灌木和草地的恢复均会降低土壤粗颗粒(细砂粒、粗砂粒)含量,
增加团聚体和粉黏粒含量;植被恢复后土壤有机碳( SOC )和无机碳(
SIC )含量均显著增加,其中最大值均出现在乔木样地,分
别达到流沙地的 3. 96倍和2. 08倍;植被恢复对土壤有机碳密度( SOCD )的影响较土壤无机碳密度( SICD )更为明显;乔木有利
于粗砂粒和细砂粒有机碳的累积,灌木更有利于粉黏粒和团聚体有机碳的累积;各粒级 SOC 含量在细砂粒中增幅最为明
显; SIC 含量在粉黏粒中增幅最为明显;粉黏粒有机碳对总有机碳的贡献率较为显著。总之,不同类型植被的恢复均
会提高土壤有机和无机含量,从增加土壤固碳的角度出发,乔木为毛乌素沙地的最佳植被恢复类型。 |
其他摘要 | Vegetation restoration has an important impact on soil carbon sequestration in arid and semi - arid re -
gions.Exploring the effects of vegetation restoration on soil carbon content of different particles is helpful to
further reveal the evolution process of desert soils.The arbor forest , shrub forest , grassland and shifting
sandy land were selected in the artificial vegetation restoration area on the southeastern margin of the Mu Us
Sandy Land , and top
0 — 30cm soils were collected and analyzed layer by layer.The results showed that the
restoration of arbors , shrubs and grassland can reduce the content of soil coarse particles ( fine and coarse
sand particles ) and increase the content of aggregates , silt and clay ; the contents of soil organic carbon
(
SOC ) and soil inorganic carbon ( SIC ) significantly increased after vegetation restoration , and the highest
values of soil carbon were observed in the arbor forest , which were 3. 96times and 2. 08times higher than
that of shifting sandy land ; the effect of vegetation restoration on SOC density
was more obvious than SIC
density ; arbor forest was beneficial for organic carbon accumulation in coarse sand and fine sand
, and shrub
forest was more beneficial for organic carbon accumulation in silt and clay and aggregates ; SOC contents ofeach particle size increased most obviously in fine sand and SIC contents of each particle size increased most
obviously in silt and clay ;
the contribution rate of organic carbon in silt and clay to total organic carbon was
more significant.In summary , the restoration of three different types of vegetation can increase the SOC and
SIC , planting arbor is the best choice for vegetation restoration from the perspective of increasing soil carbon
sequestration in the Mu Us Sandy Land. |
关键词 | 植被恢复
土壤有机碳
土壤无机碳
土壤颗粒组成
毛乌素沙地
|
收录类别 | 中文核心期刊要目总览
|
语种 | 中文
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文献类型 | 期刊论文
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条目标识符 | sbir.nwafu.edu.cn/handle/361005/10057
|
专题 | 水保所知识产出(1956---)
|
作者单位 | 西北农林科技大学资源环境学院
|
推荐引用方式 GB/T 7714 |
王丽梅,张谦,白利华,等. 毛乌素沙地3种人工植被类型对土壤颗粒组成和 固碳的影响[J]. 水土保持研究,2020,27(1):88-94.
|
APA |
王丽梅,张谦,白利华,马爱生,&张红.(2020).毛乌素沙地3种人工植被类型对土壤颗粒组成和 固碳的影响.水土保持研究,27(1),88-94.
|
MLA |
王丽梅,et al."毛乌素沙地3种人工植被类型对土壤颗粒组成和 固碳的影响".水土保持研究 27.1(2020):88-94.
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文件名:
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毛乌素沙地3种人工植被类型对土壤颗粒组成和固碳的影响_王丽梅.pdf
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Adobe PDF
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