Effects on Soil Physical and Chemical Propertis Under Different Vegetation Covers in Converted Farmland of Southern Ningxia Region

WANG Yue-ling; WANG Si-cheng; LI Na; MA Fan

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Effects on Soil Physical and Chemical Propertis Under Different Vegetation Covers in Converted Farmland of Southern Ningxia Region

- Effects on Soil Physical and Chemical Propertis Under Different Vegetation Covers in Converted Farmland of Southern Ningxia Region
- Bulletin of Soiland Water Conservation Vol. 30, Issue 2, Pages: 95-98(2011)
- 作者机构：
  
  1. 宁夏农林科学院荒漠化治理研究所
  2. 宁夏农垦局
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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WANG Yue-ling, WANG Si-cheng, LI Na, et al. Effects on Soil Physical and Chemical Propertis Under Different Vegetation Covers in Converted Farmland of Southern Ningxia Region[J]. Bulletin of Soiland Water Conservation, 2011, 30(2): 95-98.
DOI：

WANG Yue-ling, WANG Si-cheng, LI Na, et al. Effects on Soil Physical and Chemical Propertis Under Different Vegetation Covers in Converted Farmland of Southern Ningxia Region[J]. Bulletin of Soiland Water Conservation, 2011, 30(2): 95-98. DOI：

摘要

对宁南山区典型区域——彭阳中庄小流域3种不同植被类型的土壤物理和化学性质进行了分析测定。结果表明:(1)沙棘林地和人工草地的土壤含水量、土壤容重和土壤孔隙度均小于自然封育

而沙棘林地和人工草地两者相比较而言

0—200cm土层沙棘林地的土壤平均含水量小于人工草地

0—60cm土层土壤容重人工草地相对较小

孔隙度相对较大;(2)0—60cm土层沙棘林地和人工草地的全氮、碱解氮和有机质平均含量与自然封育相比较

其含量由高到低的顺序为:自然封育>人工草地>沙棘林地

且差异显著;而全钾、速效磷、速效钾的平均含量与自然封育相比较

其含量由高到低的顺序为:林地>自然封育>人工草地;全磷平均含量变化依次为:林地>人工草地>自然封育。

Abstract

For physiochemical analysis

soil samples were collected three variously vegetated slopes in Zhongzhuang watershed of Pengyang County

which is a typical geomorphologic unit of the mountainous regions of the Southern Ningxia Autonomous Region.The results show that both sea-buckthorn woodland and artificial pasture had lower soil moisture

soil bulk density and soil porosity than naturally enclosed land.Compared with the artificial pasture

the sea-buckthorn woodland had lower averages of soil moisture within 0—200 cm

and relatively higher soil bulk density and lower porosity in the layer of 0—60 cm.Within 0—60 cm

the natural land had the highest total nitrogen

readily available nitrogen and soil organic matter

followed by the pasture and the woodland.The woodland

natural land and pasture had respectively high

intermediate and low total potassium

readily available potassium and readily available phosphorus.As for total phosphorus

the woodland had the highest average content and the natural land had the lowest.All the differences were found statistically significant.

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