Effect of Extreme Rainfall on the Soil Water Cycle of Forest Land

Wang Mengben; Li Hongjian; Chai Baofeng

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Effect of Extreme Rainfall on the Soil Water Cycle of Forest Land

更新时间：2024-11-07

- Effect of Extreme Rainfall on the Soil Water Cycle of Forest Land
- Vol. 10, Issue 3, Pages: 83-87(1996)
- 作者机构：
  
  山西大学黄土高原研究所,太原,030006
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：1996
- 稿件说明：
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Wang Mengben, Li Hongjian, Chai Baofeng. Effect of Extreme Rainfall on the Soil Water Cycle of Forest Land[J]. 1996, 10(3): 83-87.
DOI：

Wang Mengben, Li Hongjian, Chai Baofeng. Effect of Extreme Rainfall on the Soil Water Cycle of Forest Land[J]. 1996, 10(3): 83-87. DOI：

摘要

在极端干旱年份，柠宁灌木林地的土壤水分循环水平很低（３．０５％），降水年渗深极浅（３０ｃｍ），水分亏缺程度最为严重（－８９．５１ｍｍ）；在极端丰水年份，则土壤水分循环水平最高（４．８８％），降水年渗深最大（３１０ｃｍ），水分收支盈余额极其可观（＋１９５．０９ｍｍ）。极端丰水条件非常有利于土壤水分亏缺的补偿和恢复。在此条件下，柠条灌木林地的土壤干层在入渗层（３１０ｃｍ）以上消失，河北杨林和小叶杨林地的土壤干层可完全消失。

Abstract

In the lightest rainfall year

the soil water cycle level was very low (3.05%)

the in-filtration of rainfall was the shallowest (30 cm) and the soil water deficit was extremely heavy (-89.51 mm) in Caragana korshinskii forest land; in the heaviest rainfall year

however

the soil water cycle level was the highest (4.88%)

the rainfall infiltration was the deepest (310 cm)

and the water balance reached the highest (+195.09mm) in the shrub forest. The heaviest rainfall during the annual growing season contributed highly to the restoration of normal soil water cycle. Although the dry layer remained under the layer of rainfall infiltration in C. korshinskii

it was eliminated in Populus hopeiensis and P. simoniiplantitions.

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