Related Experiment Video
Updated: Oct 6, 2025
12:33
High-throughput Fluorometric Measurement of Potential Soil Extracellular Enzyme Activities
Published on: November 15, 2013
47.4K
Pecan agroforestry systems improve soil quality by stimulating enzyme activity
Zhaocheng Wang1, Mengyu Zhou1, Hua Liu1
1School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei, Anhui, China.
Peerj
|January 17, 2022
Summary
Intercropping pecan with specific plants improves soil physical properties, increasing moisture and porosity. Agroforestry systems also boost soil nutrients and enzyme activity, enhancing overall soil health.
Area of Science:
- Agroforestry
- Soil Science
- Agronomy
Background:
- Agroforestry systems, like forest and plantation intercropping, are vital for optimizing land use globally.
- Different intercropping combinations within the same plantation can uniquely impact soil properties.
Purpose of the Study:
- To investigate the effects of diverse agroforestry systems on the physical and chemical soil properties in pecan plantations.
- To compare the efficacy of different intercropping combinations with monoculture pecan cultivation.
Main Methods:
- Evaluated four treatments: pecan monoculture (CK) and three agroforestry systems (pecan + Paeonia suffruticosa + Hemerocallis citrina; pecan + Paeonia suffruticosa; pecan + Paeonia lactiflora).
- Analyzed soil samples at three depths (0-20 cm, 20-40 cm, 40-60 cm) for physical and chemical properties and enzyme activities.
Main Results:
- Pecan agroforestry systems (PPH and PPL) significantly reduced soil bulk density and increased soil moisture and total porosity.
- Soil nutrient content (total phosphorus, nitrogen, available potassium, total carbon) and enzyme activities (urease, alkaline phosphatase, β-N-acetylglucosaminidase) were significantly enhanced by agroforestry.
- The pecan + Paeonia suffruticosa + Hemerocallis citrina (PPS) system showed less pronounced improvements compared to pecan monoculture.
Conclusions:
- Pecan-based agroforestry systems effectively improve soil physical properties, nutrient status, and soil enzyme activity.
- Diversified intercropping in pecan plantations offers a sustainable approach to enhance soil health and fertility.
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