Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2020, Vol. 36 ›› Issue (6): 48-56.doi: 10.11924/j.issn.1000-6850.casb20190900622

Previous Articles     Next Articles

Ziziphus jujuba (Mill.) Forest in Loess Area of Northern Shaanxi: Change of Soil Physical Properties

Zong Qiaoyu1, Ai Ning1,2(), Yang Fengmao3, Qiang Dahong1, Li Yang1, Liu Jiao1, Hao Baobao1, Liu Changhai1,2   

  1. 1 College of Life Science, Yan’an University, Yan’an Shaanxi 716000
    2 Shaanxi Engineering and Technological Research Center for Conversation and Utilization of Regional Biological Resources, Yan’an Shaanxi 716000
    3 Shenmu Forestry Bureau, Shenmu Shaannxi 719300
  • Received:2019-09-10 Revised:2019-10-21 Online:2020-02-25 Published:2020-02-22
  • Contact: Ai Ning E-mail:aining@yau.edu.cn

Abstract:

To understand the differences in soil physical properties and soil structure of jujube forests in loess area of northern Shaanxi and provide references for jujube forest construction, regional forestry economic development and vegetation restoration, taking jujube forest in Mazhen, Shenmu as the main research object, we determined the soil physical properties by ring immersion method, and analyzed the spatial distribution characteristics of soil physical properties. The results showed that: (1) there were significant differences in soil physical properties among different vegetation types (P<0.05); the order of soil moisture was grassland>jujube forest in mountain>apricot forest; the maximum water holding capacity and capillary water holding capacity were apricot forest>jujube forest in mountain>grassland; (2) there were significant differences of soil water holding capacity and soil porosity of jujube trees of different forest ages (P<0.05); the water holding capacity of the 20-year-old jujube trees in beach was better than that of the 100-year-old jujube trees in beach, but the soil structure of the 20-year-old jujube trees in beach was worse than that of the 100-year-old jujube trees in beach; (3) the soil water holding capacity and porosity of jujube trees in mountain and beach were significantly different (P<0.05), and the soil bulk density was not significantly different (P>0.05); the soil water content of jujube trees in mountain and beach reached the maximum at soil layer of 60-100 cm, and their maximum values were 10.38% and 19.65%, respectively.

Key words: loess area in northern Shaanxi, jujube forest, soil water holding capacity, soil porosity, soil bulk density

CLC Number: