Study of the Character of Soil Aggregates under Vegetation Restoration in Ziwu Mountain

MA Shuai; ZHAO Shi-wei; LI Ting; LI Xiao-xiao; ZENG Xian-fang

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Study of the Character of Soil Aggregates under Vegetation Restoration in Ziwu Mountain

更新时间：2024-11-07

- Study of the Character of Soil Aggregates under Vegetation Restoration in Ziwu Mountain
- Vol. 25, Issue 2, (2011)
- 作者机构：
  
  1. 中国科学院水利部水土保持研究所,陕西,杨陵,7121002. 中国科学院水利部水土保持研究所,陕西,杨陵,712100
  2. 西北农林科技大学水土保持研究所,陕西,杨陵,712100
- 作者简介：
- 基金信息：
- DOI：
  CLC： S152.4S153.621
- Published：2011
- 稿件说明：
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MA Shuai, ZHAO Shi-wei, LI Ting, et al. Study of the Character of Soil Aggregates under Vegetation Restoration in Ziwu Mountain[J]. 2011, 25(2).
DOI：

MA Shuai, ZHAO Shi-wei, LI Ting, et al. Study of the Character of Soil Aggregates under Vegetation Restoration in Ziwu Mountain[J]. 2011, 25(2). DOI：

摘要

研究了子午岭林区七种植被类型土壤>0.25 mm水稳性团聚体含量、团聚体破坏率和水稳性团聚体分形维数随植被恢复的变化规律以及这3个指标随土壤有机碳含量增加的变化规律。结果表明:植被恢复对>0.25 mm水稳性团聚体含量、团聚体破坏率和水稳性团聚体分形维数的影响可以达到70 cm土层;除白羊草群落外

0-70 cm土层上>0.25 mm水稳性团聚体含量随植被恢复逐渐提高

团聚体破坏率和水稳性团聚体分形维数随植被恢复逐渐减小

土壤结构随植被恢复逐渐改善。>0.25 mm水稳性团聚体含量、团聚体破坏率和水稳性团聚体分形维数与土壤有机碳之间呈极显著对数相关关系(p=0.01

n=32)

当有机碳含量低于18.1 mg/g时

>0.25 mm水稳性团聚体含量随有机碳含量提高而明显提高、团聚体破坏率和水稳性团聚体分形维数则随有机碳含量提高而明显降低

即土壤结构稳定性明显提高;当有土壤机碳含量高于18.1 mg/g

>0.25 mm水稳性团聚体含量、团聚体破坏率和水稳性团聚体分形维数渐趋稳定

即在白羊草、虎榛子、山杨和辽东栎阶段的0-5 cm土层土壤结构达到稳定状态。

Abstract

In this paper

the change law of >0.25 mm water stable aggregates

aggregates destruction rate and water stable aggregates fractal dimension under different vegetation restoration period and the correlation of the three indices with SOC content were studied in Ziwu mountain.The result showed that these three indices of 0-70 cm soil layer could be effected by vegetation restoration;the content of >0.25 mm water stable aggregates increasing and the aggregate destruction rate and water stable aggregates fractal ...

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