Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2020, Vol. 36 ›› Issue (35): 55-63.doi: 10.11924/j.issn.1000-6850.casb20191000713

Special Issue: 农业地理 耕地保护

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Soil Physical and Chemical Properties and Fertility Under Different Land Use Patterns in Daqing

Xu Haijun1,2(), Yao Qin3, Wang Xiaofei2, Guan Xiangjun2, Sun Yufeng2()   

  1. 1Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040
    2Daqing Branch of Heilongjiang Academy of Sciences, Daqing Heilongjiang 163319
    3Landscaping Company of Logistic Administration of Daqing Oilfield Limited Company, Daqing Heilongjiang 163711
  • Received:2019-10-12 Revised:2020-03-03 Online:2020-12-15 Published:2020-12-18
  • Contact: Sun Yufeng E-mail:nxynxhj@163.com;sunyf888@163.com

Abstract:

To understand the variation trend of soil physicochemical properties and fertility under different land use patterns in Daqing, three typical vegetation sampling plots, poplar forest land, meadow land and farmland land, were selected for analyzing the difference of soil physicochemical properties and fertility changes under different vegetation forms. The results showed that: (1) soil available potassium, organic matter and water content in meadow were significantly higher than those in poplar forest and farmland, and soil bulk density in poplar forest was significantly higher than that in meadow and farmland (P<0.05); (2) soil moisture content and available potassium in meadow, farmland and poplar forest showed a decreasing trend, while soil bulk density showed an increasing trend, among them, the physical and chemical properties of poplar forest showed a decreasing trend with the increase of age grade; (3) the comprehensive fertility of meadow (1.94), farmland (1.87) and poplar forest (1.69) belonged to the below-average level and had a decreasing trend successively. It is suggested that more attention should be paid to the adjustment and improvement of soil physical structure in land management.

Key words: land utilization, vegetation type, soil comprehensive fertility, Nemorow grading method, soil physicochemical properties, PCA ordination, correlation analysis

CLC Number: