Effects of Sand Gold Mining on Soil fertility and Reclamation Techniques in south China

Zhao Shiwei; Huang Fuzhen; Zhang Yuzhen; Li Zhiming; Ma Yuxi

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Effects of Sand Gold Mining on Soil fertility and Reclamation Techniques in south China

- Effects of Sand Gold Mining on Soil fertility and Reclamation Techniques in south China
- Bulletin of Soiland Water Conservation Vol. 12, Issue 4, Pages: 30-34(1993)
- 作者机构：
  
  中国科学院、水利部西北水土保持研究所陕西杨陵,712100
- 作者简介：
- 基金信息：
- DOI：
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- Published：1993
- 稿件说明：
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Zhao Shiwei, Huang Fuzhen, Zhang Yuzhen, et al. Effects of Sand Gold Mining on Soil fertility and Reclamation Techniques in south China[J]. Bulletin of Soiland Water Conservation, 1993, 12(4): 30-34.
DOI：

Zhao Shiwei, Huang Fuzhen, Zhang Yuzhen, et al. Effects of Sand Gold Mining on Soil fertility and Reclamation Techniques in south China[J]. Bulletin of Soiland Water Conservation, 1993, 12(4): 30-34. DOI：

摘要

砂金开采对土壤肥力产生严重影响。主要表现为:土壤剖面构造破坏

底部生土上翻

耕层养分损失较大

土壤肥力下降

农作物产量锐减。研究结果表明:在砂金开采中实行土壤分层剥离

表土单独堆放

保表复垦是矿区农田复垦中保持土壤肥力的关键

同时

建立人工犁底层是南方砂金矿区水稻土复垦中一个重要技术措施。

Abstract

The serious effects of sand gold mining on soil fertility were reported in this paper.These effects include

the structure of soil section was broken

gravel and bottom soil were reversed to surface soil

the nutrients of top tilling soil lost serious

the soil fertility and crop fertility and crop yield decreased.With the above results

the authors suggested that the keys of soil fertility conservation in soil reclamation should be to come off soil layer by layer and to place the topsoil alonely in sand gold mining.The heart of the matter is to carry on artificial plough in place the topsoil alonely in sand gold mining.The heart of the matter is to carry is to carry on artificial plough in paddy soil reclamation in the sand gold mine region of south China.

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