Evaluation on Forest Water Conservation Function of Giant Panda National Park in Sichuan Province

Xu Yali; Tian Miao; Zheng Jibo; Yuan Yirong; Zhao Wenjun

doi:10.13961/j.cnki.stbctb.2024.06.010

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Evaluation on Forest Water Conservation Function of Giant Panda National Park in Sichuan Province

- Evaluation on Forest Water Conservation Function of Giant Panda National Park in Sichuan Province
- Bulletin of Soiland Water Conservation Vol. 44, Issue 6, Pages: 88-96(2024)
- 作者机构：
  
  四川省地质调查研究院测绘地理信息中心,四川,成都,610072
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2024.06.010
  CLC： S715.3
- Published：2024
- 稿件说明：
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Xu Yali, Tian Miao, Zheng Jibo, et al. Evaluation on Forest Water Conservation Function of Giant Panda National Park in Sichuan Province[J]. Bulletin of Soiland Water Conservation, 2024, 44(6): 88-96.
DOI：

Xu Yali, Tian Miao, Zheng Jibo, et al. Evaluation on Forest Water Conservation Function of Giant Panda National Park in Sichuan Province[J]. Bulletin of Soiland Water Conservation, 2024, 44(6): 88-96. DOI： 10.13961/j.cnki.stbctb.2024.06.010.

摘要

[目的

]

明晰大熊猫国家公园(四川片区)森林水源涵养功能的林型分异特征及空间格局，为片区森林资源保护和水资源适应性经营管理提供指导。[方法

]

基于大熊猫国家公园(四川片区)登记单元地籍调查—森林资源专项调查成果、样地调查及多源遥感数据等，使用综合蓄水能力法计算片区森林的水源涵养量，并分析不同森林类型和立地条件差异下的森林水源涵养功能特性。[结果

]

①片区森林生态系统的水源涵养总量为1.71×10

，单位面积水源涵养量为1 061.27 m

/hm

；土壤层是森林涵养水源的主要场所；常绿针叶林的水源涵养功能最强。②森林水源涵养功能的空间差异明显，形成了雅安、绵阳、广元市等地较高，阿坝州、德阳市等地较低的空间分布格局。③森林水源涵养总量主要集中在海拔(1 500，3 500］ m地区，其水源涵养贡献率达90.10%；森林单位面积水源涵养量随着海拔的升高呈显著的下降趋势(p＜0.01)。④急坡(35°，45°］地区的森林水源涵养总量最高，其水源涵养的贡献率为24.01%；森林单位面积水源涵养量随着坡度的增加呈显著的先升高后下降趋势(p＜0.01)。[结论

]

因地制宜地合理调整大熊猫国家公园(四川片区)的森林资源结构、优化森林资源布局，有利于更大程度地发挥片区森林的水源涵养功能。

Abstract

[Objective] Forest type differentiation characteristics and spatial patterns of the forest water conservation function of Giant Panda National Park in Sichuan Province were examined

in order to provide guidance for the protection of forest resources and adaptive management of water resources in this area. [Methods] Based on the results of the cadastral and special forest resources survey in the Sichuan area of Giant Panda National Park

sample plots data

and multi-source remote sensing data

the integrated storage capacity method was applied to estimate the forest water conservation function. Its characteristics under different forest types and site conditions were then analyzed. [Results] ① The extent of water conservation of the forest ecosystem in this area was 1.71×109 m3

yielding a water conservation of 1 061.27 m3/hm2 per unit area. The soil layer served as the main reservoir for water conservation. Evergreen coniferous forests exhibited the strongest water conservation function. ② There were notable spatial variations in forest water conservation function

with higher levels in Ya’an

Mianyang

and Guangyuan City and lower levels in Aba Prefecture and Deyang City. ③ The forest water conservation amount mainly concentrated in areas with altitudes ranging between (1 500

3 500］ meters

contributing 90.10% to the total water conservation amount. In addition

the forest water conservation per unit area significantly decreased as altitude increased (p＜0.01). ④ Forests on steep slopes (35°，45°］ had the highest forest water conservation amount

with a contribution rate of 24.01%. The forest water conservation per unit area showed a trend of first increasing and then decreasing as slope steepness increased (p＜0.01). [Conclusion] Reasonably adjusting the forest resources’ structure and optimizing forest resources’ distribution of Giant Panda National Park in Sichuan Province according to local conditions would help maximize the forest water conservation function in this area.

关键词

Keywords

references

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