Benefits of Shrub Sand-fixation Forest for Soil Improvement

ZHOU Mi-jing; GAO Cheng-xiong; HAO Wen-gong; GAO Guo-xiong; ZHU Shou-jun

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Benefits of Shrub Sand-fixation Forest for Soil Improvement

- Benefits of Shrub Sand-fixation Forest for Soil Improvement
- Bulletin of Soiland Water Conservation Vol. 28, Issue 1, Pages: 138-141(2009)
- 作者机构：
  
  1. 西北农林科技大学资源环境学院, 陕西杨凌,712100
  2. 韩城市薛峰水库管理处, 陕西韩城,715400
  3. 榆林市林业局,陕西,榆林,719000
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2009
- 稿件说明：
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ZHOU Mi-jing, GAO Cheng-xiong, HAO Wen-gong, et al. Benefits of Shrub Sand-fixation Forest for Soil Improvement[J]. Bulletin of Soiland Water Conservation, 2009, 28(1): 138-141.
DOI：

ZHOU Mi-jing, GAO Cheng-xiong, HAO Wen-gong, et al. Benefits of Shrub Sand-fixation Forest for Soil Improvement[J]. Bulletin of Soiland Water Conservation, 2009, 28(1): 138-141. DOI：

摘要

对榆林沙区固沙灌木林地的土壤养分进行了测定。分析结果表明

灌木固沙林具有明显的改良土壤的作用

该区沙地防风固沙林地土壤有机质明显增加

养分状况得到较大改善

其中土壤有机质增加2.2-20.6倍

全N增加2-22倍

速效P增加0.7倍

速效K增加41%

而土壤pH值变化不显著

均呈微碱性。研究结果表明

沙地土壤改良是一个非常缓慢的过程

榆林沙地土壤养分总体仍呈现贫瘠状态。

Abstract

Soil nutrients of shrub sand-fixation forest in the Yulin sandy area were measured in this study.Results showed that shrub sand-fixation forest had a significant effect for soil improvement.Soil organic matter in windbreak and sand-fixation forest was increased obviously in the area and the soil nutrient status was improved considerably.Soil organic matter

total N

available P

and available K were increased by 2.2 to 20.6 times

2 to 22 times

0.7 times

and 41%

respectively.However

the pH of soil did not change significantly and presented an alkalescent condition.The study indicates that soil improvement in sandy land is a very slow process and soil nutrients of Yulin sand land still present a lean soil condition as a whole.

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