[1]MIN Huilin,SONG Weifeng.Dynamic Characterization of Surface Water nitrogen Concentration Under Various Land Uses in Quanfuzhuang Watershed[J].Research of Soil and Water Conservation,2019,26(01):92-97,105.
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Dynamic Characterization of Surface Water nitrogen Concentration Under Various Land Uses in Quanfuzhuang Watershed
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
26
Number of periods:
2019 01
Page number:
92-97,105
Column:
Public date:
2019-02-28
- Title:
- Dynamic Characterization of Surface Water nitrogen Concentration Under Various Land Uses in Quanfuzhuang Watershed
- CLC:
- X832;X523
- DOI:
- -
- Abstract:
- The dynamic characteristics of surface water nitrogen concentration under various land uses were studied in the Quanfuzhuang watershed with typical nature of ‘four-element-in-a-structure’ ecosystem in Yuanyang County. From November 2016 to October 2017, the study was conducted to analyze spatial and temporal distribution as well as seasonal variations of the nitrogen concentration through monitoring the TN, NO3--N and NH4+-N of the surface water under four land uses of forest, villages, terraces and river. The results showed that:(1) the highest concentrations of TN and NO3--N appeared in June, while the lowest in December to February; the concentrations of NH4+-N in terraces and river were higher and the highest in May, while the lowest NH4+-N in the terraces appeared in July; (2) the highest concentrations of the TN, NO3--N and NH4+-N appeared in the village, followed by terraces and river, and the lowest appeared in the forestland; concentrations of TN and NO3--N in the forest, terraces and river decreased in the order:summer > spring > autumn, while the NH4+-N concentrations decreased in the sequence:spring > winter > autumn > summer.
- References:
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1900-01-01