JOURNAL OF NATURAL RESOURCES ›› 2015, Vol. 30 ›› Issue (3): 459-469.doi: 10.11849/zrzyxb.2015.03.009

• Resource Evaluation • Previous Articles     Next Articles

The Soil Moisture Characteristics under Different Vegetation Types after Extremely Heavy Rainfall on the Hilly-gullied Loess Plateau

YIN Qiu-long1, JIAO Ju-ying1,2, KOU Meng2,3   

  1. 1. College of Forestry, Northwest A&F University, Yangling 712100, China;
    2. Institute of Soil and Water Conservasion, CAS and Ministry of Water Resources, Yangling 712100, China;
    3. Graduate University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2014-03-24 Revised:2014-07-21 Published:2015-03-23

Abstract:

In order to understand the relationship between soil moisture and vegetation after extremely heavy rainfall on the hilly-gullied Loess Plateau, the soil moisture was observed and analyzed under five different vegetation types (Robinia psendoacacia, Caragana intermedia, Artemisia gmelinii, Stipa bungeana and Bothriochloa ischaemun) after a series of heavy rainfall in July 2013. The results show that: 1) Vegetation became the main factor that affected soil moisture after extremely heavy rainfall. 2) The soil moisture under grassland was higher than that under the artificial forests. The soil under Stipa bungeana had the highest soil moisture, soil water storage and available soil water storage, which were 17.8%, 961.2 mm and 691.2 mm, while the soil under 31 years old Robinia psendoacacia had the lowest soil moisture. 3) The infiltration depth of soil under artificial forests was about 300 cm, and about 500 cm under the grassland. It was difficult to recover the moisture in the deep soil under the artificial forest.

Key words: watershed ecology, soil moisture, vegetation type, extremely heavy rainfall, hillygullied Loess Plateau

CLC Number: 

  • S152.7