Hydrological Effect of Karst Primal Forest on Epi-karst Zone--A Case Study from Maolan National Nature Reserve of Guizhou Province

KANG Zhi-qiang

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Hydrological Effect of Karst Primal Forest on Epi-karst Zone--A Case Study from Maolan National Nature Reserve of Guizhou Province

- Hydrological Effect of Karst Primal Forest on Epi-karst Zone--A Case Study from Maolan National Nature Reserve of Guizhou Province
- Bulletin of Soiland Water Conservation Vol. 31, Issue 6, Pages: 47-50(2012)
- 作者机构：
  
  1. 广西地质勘查总院
  2. 国土资源部岩溶动力学重点实验室
  3. 联合国教科文组织国际岩溶研究中心
- 作者简介：
- 基金信息：
- DOI：
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- Published：2012
- 稿件说明：
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KANG Zhi-qiang. Hydrological Effect of Karst Primal Forest on Epi-karst Zone--A Case Study from Maolan National Nature Reserve of Guizhou Province[J]. Bulletin of Soiland Water Conservation, 2012, 31(6): 47-50.
DOI：

KANG Zhi-qiang. Hydrological Effect of Karst Primal Forest on Epi-karst Zone--A Case Study from Maolan National Nature Reserve of Guizhou Province[J]. Bulletin of Soiland Water Conservation, 2012, 31(6): 47-50. DOI：

摘要

贵州省茂兰国家级自然保护区现存有全球同纬度面积最大的喀斯特原生森林。研究证实

其森林水文效应较为明显。通过对该区岩溶水实时动态监测及氘氧同位素化学分析

认为该区喀斯特森林水文效应主要的表现方式是雨季的激发降水及旱季生态需水消耗。2010年位于原生森林区板寨站实测降水量高达1 710.0mm

而位于森林外围区的尧排站实测降水量仅为1 066.5mm。森林激发降水主要来自其对表层带岩溶水的蒸发蒸腾而产生的水汽。森林水文效应使该区表层带岩溶水的循环周期季节变化非常明显

丰水季节超过了3个月

而枯水季节则约为2个月

说明该区表层带岩溶水受森林生长周期的影响较为明显。

Abstract

The forest at Maolan National Nature Reserve of Guizhou Province(MNNRG) is the largest karst primal forest area along similar latitude in the world and of great hydrological significance to the region.Its major hydrological effect

according to the tracer technology of hydrogen and oxygen stable isotope

is to increase precipitation in summer and to supply ecological water need in winter.In 2010

the precipitation was 1 710.0 mm within the reserve area and 1 066.5 mm outside.The increased rainfall in the forest mainly came from evaportranspiration of epi-karst water.The epi-karst water cycle demonstrated distinct seasonal variations including a three-month wet season and two-month dry season

suggesting the epi-karst hydrodynamics might be affected significantly by forest growth cycle.

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