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[1]HUANG Na,ZHOU Yi,WU Xiaoni,et al.Effects of Dominant Species on Soil Enzyme Activity in the Phosphorus-Enriched Degraded Mountain Area in the Lake Dianchi Watershed of Southwestern China[J].Research of Soil and Water Conservation,2019,26(04):171-176.

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Effects of Dominant Species on Soil Enzyme Activity in the Phosphorus-Enriched Degraded Mountain Area in the Lake Dianchi Watershed of Southwestern China

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 26 Number of periods: 2019 04 Page number: 171-176 Column: Public date: 2019-06-11

Title:: Effects of Dominant Species on Soil Enzyme Activity in the Phosphorus-Enriched Degraded Mountain Area in the Lake Dianchi Watershed of Southwestern China

Author(s):: HUANG Na¹, ZHOU Yi², WU Xiaoni³, FU Denggao¹, ZHAO Luoqi¹; 1. School of Ecology and Environmental Sciences/Yunnan Key Laboratory for Plateau Mountain Ecology and Restoration of Degraded Environments, Yunnan University, Kunming 650091, China;
2. Vocational Secondary Specialized School of Kunming, Kunming 650228, China;
3. Department of Life Science and Technology, Kunming University, Kunming 650214, China

Keywords:: rhizosphere soil; root-zone soil; soil enzyme activity; rhizosphere effect

CLC:: S154

DOI:: -

Abstract:: In order to understand the effects of dominant species on soil enzyme activity in the phosphorus-enriched degraded mountain area, five different dominant species (Pinus yunnanensis, Erianthus rockii, Coriaria nepalensis, Imperata cylindrica and Eupatorium adenophorum) were selected to measure the main soil enzyme activities in root-zone soil and rhizosphere soil. The results showed that the urease activities of P. yunnanensis in root-zone [0.99 mg/(g·d)] and rhizosphere soil [2.60 mg/(g·d)] were the highest. E. adenophorum protease activities [312.39 μg/(g·d)] displayed the highest in rhizosphere soil. The cellulase activities were the highest in root-zone soil of P. yunnanensis [0.81 mg/(g·3 d)] and in rhizosphere soil of E. adenophorum [2.12 mg/(g·3 d)]. The phosphatase activites of five species in root-zone soil and rhizosphere soil slightly changed. Comparing the rhizosphere effect, we found that the rhizosphere effects of five species on urease and cellulase were relatively strong, followed by protease, and the rhizosphere effects on phosphatase were weakest. According to the effects of species on root-zone soil and rhizosphere soil enzyme activities, the order of the comprehensive effects displayed the sequence: P. yunnanensis > I. cylindrica > E. adenophorum > C. nepalensis > E. rockii. Soil enzyme activity not only illustrates the impact of plants on soil biological properties but also reflects the ways of plant adaptation to environment. Therefore, the evaluation of plant recovery potential in the plosphorus-enriched degradation mountainous area should combine with other aspects, such as the effects on soil physical and chemical properties, eco- hydrological processes and the role in the community assembly process.

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