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[1]ZHAO Manxing,YANG Fan,MA Wenquan,et al.Seasonal Change of Soil Nutrient and Enzyme Activities in Hippophae rhamnoides Plantation with Different Stand Ages in Loess Hilly Region[J].Research of Soil and Water Conservation,2023,30(02):58-66.[doi:10.13869/j.cnki.rswc.2023.02.032]

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Seasonal Change of Soil Nutrient and Enzyme Activities in Hippophae rhamnoides Plantation with Different Stand Ages in Loess Hilly Region

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 30 Number of periods: 2023 02 Page number: 58-66 Column: Public date: 2023-03-10

Title:: Seasonal Change of Soil Nutrient and Enzyme Activities in Hippophae rhamnoides Plantation with Different Stand Ages in Loess Hilly Region

Author(s):: ZHAO Manxing^1,2, YANG Fan¹, MA Wenquan¹, WANG Jun¹, BAI Erlei¹; (1.College of Life Sciences, Yan'an University, Yan'an, Shaanxi 716000, China; 2.Shaanxi Engineering and Technological Research Center for Conversation and Utilization of Regional Biological Resources, Yan'an, Shaanxi 716000, China)

Keywords:: loess hilly region; Hippophae rhamnoides plantation; soil nutrient; enzyme activities

CLC:: S153.6; S154.2

DOI:: 10.13869/j.cnki.rswc.2023.02.032

Abstract:: In order to investigate the spatial distribution characteristics of soil nutrients and enzyme activities in Hippophae rhamnoides plantation with different stand ages in loess hilly region, based on the method of spatiotemporal interaction, three different stand ages of Hippophae rhamnoides plantation, such as 5-year-old, 15-year-old and 20-year-old were selected in Jinding Town of Zhidan County. The farmland was selected as the control. Soil samples were collected in 0—10 cm, 10—20 cm and 20—30 cm soil layers. The results showed that the measures of returning farmland to forest significantly increased the soil nutrients and enzyme activities, especially in the 0—10 cm soil layer; there were significant differences in the above indexes among different soil layers and between different stand ages of Hippophae rhamnoides plantation and farmland; soil organic matter contents in spring and autumn were higher than those in summer and winter; alkaline hydrolysis nitrogen and available phosphorus in spring were the highest and lowest in autumn; available potassium was highest in winter and lowest in summer. Urease activity were higher in spring and summer than that in autumn and winter. Sucrase activity was higher in spring and winter than that in summer and autumn; catalase showed an inverted change trend with seasonal changes; correlation analysis showed that soil nutrients had a positive correlation with urease activity and sucrase activity. To sum up, Hippophae rhamnoides plantation is a suitable afforestation model, which can help improve soil nutrient and enzyme activities.

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Last Update: 2023-03-10