Discussions on Water and Soil Erosion and Its Control Measures in the Limestone Areas in Guangxi

Jiang Youbao

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Discussions on Water and Soil Erosion and Its Control Measures in the Limestone Areas in Guangxi

- Discussions on Water and Soil Erosion and Its Control Measures in the Limestone Areas in Guangxi
- Bulletin of Soiland Water Conservation Vol. 10, Issue 3, Pages: 25-28(1991)
- 作者机构：
  
  广西水土保持委员会办公室,南宁市
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：1991
- 稿件说明：
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Jiang Youbao. Discussions on Water and Soil Erosion and Its Control Measures in the Limestone Areas in Guangxi[J]. Bulletin of Soiland Water Conservation, 1991, 10(3): 25-28.
DOI：

Jiang Youbao. Discussions on Water and Soil Erosion and Its Control Measures in the Limestone Areas in Guangxi[J]. Bulletin of Soiland Water Conservation, 1991, 10(3): 25-28. DOI：

摘要

广西石灰岩分布较广

喀斯特现象发育

山多石头多

土地零散坡地多

成土缓慢

土层薄。石灰岩地区土壤允许流失量仅为68t/(km

·a)

而现在该区土壤流失量一般为100～200t/(k

m·a)

大大超过允许流失量。作者针对广西实际情况提出并论述了:1.造林绿化;2.封育恢复植被;3.修筑石坎梯田;4.增施肥料

深翻改土;5.建立生态目标责任制等水土保持措施。

Abstract

Limestone is widely distributed in Guangxi. Karst is well-developed. There are more rock mountains with more sloping lands with thin soil layer scattered. Soil formation is slow. The soil loss tolerance in the limestone area is only 68 T/km2·a

while the preseent soil loss in this region is 100—200T/km2·a

being much higher than soil loss tolerance. Based on the existing conditions in Guangxi

the author sug gested and discussed some water and soil conservation measures including: 1. afforestation; 2: enclosure of the hills for natural afforestation and vegetation recover; 3. construction of stone-bank terraces; 4. increasing application of chemical fertilizers and soil improvement by subsoiling; and 5. establishment of the eco-objective responsibility system.

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