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Chinese Agricultural Science Bulletin ›› 2020, Vol. 36 ›› Issue (15): 54-59.doi: 10.11924/j.issn.1000-6850.casb19020045

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Different Modes of Returning Farmland to Forest in Bashang Area of Northern Hebei: Effects on Soil Physicochemical Properties

Yang Yue, Yang Yitian, Wu Zhiyong, Wu Caiwu, Han Yongjiao   

  1. Department of Resources and Environmental Sciences, Heibei Normal University for Nationalities, Chengde Hebei 067000
  • Received:2019-02-24 Revised:2019-04-18 Online:2020-05-25 Published:2020-05-21

Abstract:

To explore the evolution law of soil physicochemical properties under different modes of returning farmland to forest, we compared and analyzed the soil physicochemical properties under 3 different modes of returning farmland to forest (Hippophae rhamnoides Linn., Caragana korshinskii., Ulmus pumila L.) by taking the returning farmland to forest area in Bashang area of northern Hebei as the study object and the enclosed grassland as the control. The results showed that: the changes of soil physicochemical properties under different modes of returning farmland to forest were obvious; the average ranking of the soil bulk density was: Hippophae rhamnoides Linn. (1.17 g/cm 3)<Ulmus pumila L. (1.24 g/cm 3)<Caragana korshinskii. (1.26 g/cm 3)<enclosed grassland (1.61 g/cm 3); the average ranking of total porosity of soil was: Hippophae rhamnoides Linn.(55.29%)>Ulmus pumila L. (52.55%)>Caragana korshinskii. (51.93%)>enclosed grassland (38.85%); the average ranking of organic matter was: Hippophae rhamnoides Linn. (3.191%)>Caragana korshinskii .(3.128%)>Ulmus pumila L. (2.804%)>enclosed grassland (2.536%). After the implementation of returning farmland to forest, vegetation has a positive effect on soil physicochemical properties, different modes of returning to forest have different effects on soil physicochemical properties, and the effect of Hippophae rhamnoides Linn on physicochemical properties is the best.

Key words: returning farmland to forest, soil physicochemical properties, Bashang area of northern Hebei, evolution, soil bulk density, organic matter

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