不同材料覆盖对城市裸露土壤理化性质的影响

熊凯毅; 李素艳; 曲炳鹏; 贠炳辉; 孙向阳; 王心语

doi:10.13961/j.cnki.stbctb.2018.06.003

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不同材料覆盖对城市裸露土壤理化性质的影响

试验研究

- 不同材料覆盖对城市裸露土壤理化性质的影响
- Effects of Different Mulching Materials on Soil Physical and Chemical Properties in Urban Bare Land
- 水土保持通报 2018年38卷第6期页码：16-21
- 作者机构：
  
  北京林业大学林学院,北京,100083
- 作者简介：
- 基金信息：
  
  生物燃气及循环农业科技促进教育项目“园林废弃物移动式热裂解装备与高值化利用技术研发及示范应用”（Zl61100001316004）
- DOI：10.13961/j.cnki.stbctb.2018.06.003
  中图分类号：
- 纸质出版：2018
- 稿件说明：
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熊凯毅, 李素艳, 曲炳鹏, 等. 不同材料覆盖对城市裸露土壤理化性质的影响[J]. 水土保持通报, 2018,38(6):16-21.

XIONG Kaiyi, LI Suyan, QU Bingpeng, et al. Effects of Different Mulching Materials on Soil Physical and Chemical Properties in Urban Bare Land[J]. Bulletin of Soiland Water Conservation, 2018, 38(6): 16-21.
熊凯毅, 李素艳, 曲炳鹏, 等. 不同材料覆盖对城市裸露土壤理化性质的影响[J]. 水土保持通报, 2018,38(6):16-21. DOI： 10.13961/j.cnki.stbctb.2018.06.003.

XIONG Kaiyi, LI Suyan, QU Bingpeng, et al. Effects of Different Mulching Materials on Soil Physical and Chemical Properties in Urban Bare Land[J]. Bulletin of Soiland Water Conservation, 2018, 38(6): 16-21. DOI： 10.13961/j.cnki.stbctb.2018.06.003.

摘要

[目的] 研究不同材料覆盖城市裸露土壤的效果，为城市裸露土壤处理及生态美化提供理论指导和依据。[方法] 以裸露土壤为对照，设置木片、园林废弃物、鹅卵石、陶粒、有机覆盖垫、分层覆盖（上层园林废弃物，下层园林废弃物堆肥）处理。[结果] 不同材料覆盖均能影响土壤性质，但随着时间增长，效果减弱，0—10 cm土层较10—20 cm土层易受覆盖影响；鹅卵石、陶粒处理显著提高土壤含水量；木片、分层覆盖显著降低土壤容重，提高土壤孔隙度；分层覆盖和园林废弃物覆盖显著降低土壤pH值。有机材料覆盖均能提高土壤有机质和速效养分：其中分层覆盖和园林废弃物覆盖效果较明显，分别可提高土壤碱解氮、速效磷、速效钾含量56.63%，85.73%，85.52%和48.66%，63.11%，25%，而养分供应持续性是分层覆盖和有机覆盖垫覆盖更好。[总结] 分层覆盖效果最佳，在海绵城市与绿色化城市建设中具有现实推广意义。

Abstract

[Objective] The effects of different materials covering urban bare soil were studied to provide the guidance and basis in theory for urban bare soil amendment and ecological beautification.[Methods] The bare soil with different types of coverings

including wood chips

garden waste

pebbles

ceramsite

organic mulching mats

mulching with two layers(upper garden waste

lower garden waste compost)

were designed

and the bare soil without mulch was control. Soil physical and chemical properties were measured after one year.[Results] In general

all mulching treatments could affect soil physical and chemical properties in different soil layers. The effects on the layer of 0-10 cm were stronger than on the layer of 10-20 cm. However

the effects would be gradually weakened as extended time. Soil moisture could be improved by the treatments of pebbles and ceramsite. Soil bulk density was reduced and soil porosity was increased by the treatments of wood chips and mulching with two layers. The treatments of mulching with two layers and garden waste could also significantly reduce soil pH value. Organic mulching materials could increase soil organic matter and available nutrients in both layers. The effects of the mulching with two layers and the garden wastes were better than that of other treatment. Soil content of available nitrogen

available phosphorus and available potassium of with mulching with two layers and the garden wastes were 56.63%

85.73%

224.52% and 48.66%

63.11%

25.00% greater than in bare soil without mulch. The continuity of nutrient supply was better for the treatment of the mulching with two layers and the organic pad.[Conclusion] The treatment of mulching with two layers was the better choice to amend bare soil in cities. It is of realistic popularization significance in the construction of sponge city and green city.

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