Effects of Ecological Restoration and Fertilization Management on Physical Properties of Degraded Black Soil

ZOU Wen-xiu; HAN Xiao-zeng; QIAO Yun-fa; LI Hai-bo

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Effects of Ecological Restoration and Fertilization Management on Physical Properties of Degraded Black Soil

- Effects of Ecological Restoration and Fertilization Management on Physical Properties of Degraded Black Soil
- Bulletin of Soiland Water Conservation Vol. 27, Issue 6, Pages: 37-40(2008)
- 作者机构：
  
  1. 中国科学院东北地理与农业生态研究所,黑龙江,哈尔滨,150081
  2. 中国科学院研究生院,北京,100049
- 作者简介：
- 基金信息：
- DOI：
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- Published：2008
- 稿件说明：
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ZOU Wen-xiu, HAN Xiao-zeng, QIAO Yun-fa, et al. Effects of Ecological Restoration and Fertilization Management on Physical Properties of Degraded Black Soil[J]. Bulletin of Soiland Water Conservation, 2008, 27(6): 37-40.
DOI：

ZOU Wen-xiu, HAN Xiao-zeng, QIAO Yun-fa, et al. Effects of Ecological Restoration and Fertilization Management on Physical Properties of Degraded Black Soil[J]. Bulletin of Soiland Water Conservation, 2008, 27(6): 37-40. DOI：

摘要

研究了不同生态恢复方式(苜蓿休闲、自然恢复、种植作物)和不同施肥管理(化肥+有机肥、化肥+秸秆还田、化肥、无肥)对退化黑土物理性状的影响。结果表明

与自然恢复相比

不同施肥管理对退化黑土物理性状改良效果皆较好

表现为容重减小

孔隙度、毛管持水量、最大持水量、田间持水量和水稳性团聚体含量增加

其中化肥与有机肥配施效果最好;而苜蓿休闲方式由于恢复年限较短

仅容重和孔隙度变化较明显。苜蓿和自然恢复对0-10 cm土层的容重、总孔隙度、毛管持水量、最大持水量、田间持水量影响较大

而10-20 cm土层由于恢复年限较短

变化不明显。0-20 cm土层水稳性团聚体(>0.25 mm)含量和平均重量直径表现为不同施肥管理>苜蓿休闲>自然恢复。

Abstract

The effects of different kinds of ecological restoration(alfalfa fallowing

natural vegetation restoration

and cropping) and fertilization management(chemical fertilizer + organic manure

chemical fertilizer + straw

chemical fertilizer application

and no fertilizer application) on the physical properties of degraded black soil were investigated.Results showed that fertilization management decreased soil bulk density

but increased porosity

capillary capacity

max moisture capacity

field water capacity

and the content of water-sable aggregates as compared with natural vegetation restoration.Chemical fertilizer

together with organic manure

significantly improved them as compared with other fertilizer treatments.However

significant difference was only observed between alfalfa fallow and natural vegetation restoration in terms of bulk density and porosity due to short time of ecological restoration.Bulk density

porosity and capillary capacity

max moisture capacity

and field water capacity changed greatly in 0-10 cm soil layer as compared with them in 10-20 cm soil layer.Both the content of water-stable aggregates(0.25 mm) and the mean weight diameter increased in the ascendant order of natural restoration

alfalfa fallow

and fertilization management.

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