Effects of Biochar and Combined Application with Organic, Chemical Fertilizers on Physical and Chemical Properties of Coal Mining Subsidence Reclaimed Soil

doi:10.13870/j.cnki.stbcxb.2017.05.047

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Effects of Biochar and Combined Application with Organic, Chemical Fertilizers on Physical and Chemical Properties of Coal Mining Subsidence Reclaimed Soil

更新时间：2025-03-12

- Effects of Biochar and Combined Application with Organic, Chemical Fertilizers on Physical and Chemical Properties of Coal Mining Subsidence Reclaimed Soil
- Vol. 31, Issue 5, Pages: 305-308(2017)
- 作者机构：
  
  山西农业大学资源环境学院，山西太谷,030801
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2017.05.047
  CLC： S144.1
- Published：2017
- 稿件说明：
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Effects of Biochar and Combined Application with Organic, Chemical Fertilizers on Physical and Chemical Properties of Coal Mining Subsidence Reclaimed Soil[J]. 2017, 31(5): 305-308.
DOI：

Effects of Biochar and Combined Application with Organic, Chemical Fertilizers on Physical and Chemical Properties of Coal Mining Subsidence Reclaimed Soil[J]. 2017, 31(5): 305-308. DOI： 10.13870/j.cnki.stbcxb.2017.05.047.

摘要

为了研究施用生物炭对采煤塌陷复垦土壤的熟化效果，以山西省晋城市采煤塌陷复垦区土壤为研究对象，连续3年采用生物炭与有机肥、无机肥配施等方式研究其对复垦土壤主要理化性状的影响。结果表明：不同施肥处理均不同程度改善了土壤的理化性状

有机肥配施生物炭处理明显降低了复垦土壤容重（降幅10%），提高了土壤孔隙含水率（增幅7.14%），但对土壤pH影响不明显。有机肥处理和无机肥处理的土壤全氮、全磷含量差异不显著；无机肥配施生物炭处理与单施无机肥处理相比，速效磷增加了8.33%，速效钾增加了6.34%，增幅较明显，对碱解氮影响则不明显。有机肥配施生物炭，土壤细菌、真菌、放线菌数量增幅不明显；无机肥配施生物炭，真菌数量增幅最为明显（11.7%）。有机肥、无机肥配施生物炭处理玉米产量分别提高了3.03%和2.70%，生物炭的增产作用有限。因此，在复垦土壤上施用生物炭后可以提高有机肥和无机肥的培肥效果，单施生物炭效果不明显。

Abstract

We examined the physical and chemical properties of reclaimed soil in coal-mining subsidence areas

and the influences of biochar and combined application with organic and chemical fertilizers for three consecutive years.The results were as follows: all treatments could improve soil physical

chemical and biological properties. Compared with the control

organic + biochar treatment significantly decreased the soil bulk density by 10%

and increased soil pore water content by 7.14%

while the change of soil pH was not obvious. Compared with chemical fertilizer treatment

Soil available phosphorous

potassium in chemical + biochar treatment increased by 8.33%

and 6.34%

respectively

whereas biochar had little effect on soil alkaline nitrogen， little increase in the number of bacteria

fungi

actinomycete in organic+biochar treatment; the number of fungi increased significantly by 11.7% in chemical + biochar treatment. Corn production in organic + biochar treatment and chemical + biochar treatment increased by 3.03%

and 2.70% respectively

while biochar had little effect. Therefore

the application of organic and chemical fertilizer is beneficial to improve the reclaimed soil

while biochar is?of?no use.

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