[1]LIU Dong,FU Qiang.Monthly Precipitation Time-series Analysis of Low-lying Wetland in Sanjiang Plain Based on Wavelet Denoising[J].Research of Soil and Water Conservation,2008,15(02):164-167,172.
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Monthly Precipitation Time-series Analysis of Low-lying Wetland in Sanjiang Plain Based on Wavelet Denoising
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
15
Number of periods:
2008 02
Page number:
164-167,172
Column:
Public date:
2008-04-20
- Title:
- Monthly Precipitation Time-series Analysis of Low-lying Wetland in Sanjiang Plain Based on Wavelet Denoising
- Keywords:
- Sanjiang Plain; well irrigation paddy; monthly precipitation; wavelet denoising; seasonal time-series model
- CLC:
- P426.614
- DOI:
- -
- Abstract:
- The rapid increase of paddy field area has led to widely descending of groundwater level in well irrigation paddy area of low-lying wetland in Sanjiang Plain in recent years.More and more"hanging pump"and partial overpumping have occurred in this area.Therefore,the groundwater resources dynamic balance needs to be recharged urgently in Sanjiang Plain.In order to solve above-mentioned problems,taking Farm 853 as example,the monthly precipitation seasonal time-series forecasting model was built up after the denoising,difference and standardization treatment towards the actual observation monthly precipitation data.The results of precision test showed this model had upper validity and reliability.The authors consider that the model built in this paper can reveal the time variation regularities of monthly precipitation in this area,and can provide scientific gist for fully utilizing natural precipitation,reasonably establishing irrigation system of paddy,groundwater resource recharge and sustainable utilization in Farm 853 so much as the entire Sanjiang Plain.
- References:
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