Characteristics of Channeling Flow in Cultivated Horizon of Saline Rice Soil

LUO Jinming; DENG Wei; ZHANG Xiaoping; YANG Fan; LI Xiujun

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Characteristics of Channeling Flow in Cultivated Horizon of Saline Rice Soil

LUO Jinming, DENG Wei, ZHANG Xiaoping, YANG Fan, LI Xiujun

文章导航 > Chinese Geographical Science > 2006 > 16(4): 342-346

LUO Jinming, DENG Wei, ZHANG Xiaoping, YANG Fan, LI Xiujun. Characteristics of Channeling Flow in Cultivated Horizon of Saline Rice Soil[J]. 中国地理科学, 2006, 16(4): 342-346.

引用本文:

LUO Jinming, DENG Wei, ZHANG Xiaoping, YANG Fan, LI Xiujun. Characteristics of Channeling Flow in Cultivated Horizon of Saline Rice Soil[J]. 中国地理科学, 2006, 16(4): 342-346.

LUO Jinming, DENG Wei, ZHANG Xiaoping, YANG Fan, LI Xiujun. Characteristics of Channeling Flow in Cultivated Horizon of Saline Rice Soil[J]. Chinese Geographical Science, 2006, 16(4): 342-346.

Citation:

LUO Jinming, DENG Wei, ZHANG Xiaoping, YANG Fan, LI Xiujun. Characteristics of Channeling Flow in Cultivated Horizon of Saline Rice Soil[J]. Chinese Geographical Science, 2006, 16(4): 342-346.

Characteristics of Channeling Flow in Cultivated Horizon of Saline Rice Soil

1.
Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012, China;
2.
Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China

基金项目: Under the auspices of the Key Innovation Project of Chinese Academy of Sciences(No.KZCX1-SW-19-02)

详细信息

作者简介:
LUO Jinming(1977- ),male,a native of Chengdu of Sichuan Province,Ph.D.candidate,specialized in hydrological ecology and soil water transportation.E-mail:luojm1000@sina.com.cn.

Characteristics of Channeling Flow in Cultivated Horizon of Saline Rice Soil

1.
Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012, China;
2.
Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China

摘要: By applying bromide ion as tracer,the channeling flow has been quantitatively described in saline rice soil and alkaline soil of Da,an City,Jilin Province of China.Breakthrough curves of bromide ion in the saline rice soils after 1-year cultivation and 5-year cultivation and alkaline soil have been attained.Results show that the rice cultivation practice can improve the alkaline soil structure,however,it can accelerate the development of channeling flow pathway.Therefore,the channeling flow pathway has been developed widely in saline rice soil,but rarely in the alkaline soil.Three models of convection-dispersion equation(CDE),transfer functional model(TFM) and Back-Progation Network(BP Network) were used to simulate the transportation process of bromide ion.The peaks of probability density function of saline rice soil are higher with left skewed feature compared with that of the alkaline soil.It shows that the TFM and CDE can simulate the transportation process of the bromide ion in saline rice soil after 5-year cultivation,however,some deviation exists when it was used to simulate transportation process of bromide ion in saline rice soil after 1-year cul-tivation and alkaline soil;BP network can effectively simulate transportation process of bromide ion in both saline rice soil and alkaline soil.
- channeling flow /
- saline rice soil /
- alkaline soil /
- transfer function model /
- convection-dispersion equation /
- Back-Progation Network
Abstract: By applying bromide ion as tracer,the channeling flow has been quantitatively described in saline rice soil and alkaline soil of Da,an City,Jilin Province of China.Breakthrough curves of bromide ion in the saline rice soils after 1-year cultivation and 5-year cultivation and alkaline soil have been attained.Results show that the rice cultivation practice can improve the alkaline soil structure,however,it can accelerate the development of channeling flow pathway.Therefore,the channeling flow pathway has been developed widely in saline rice soil,but rarely in the alkaline soil.Three models of convection-dispersion equation(CDE),transfer functional model(TFM) and Back-Progation Network(BP Network) were used to simulate the transportation process of bromide ion.The peaks of probability density function of saline rice soil are higher with left skewed feature compared with that of the alkaline soil.It shows that the TFM and CDE can simulate the transportation process of the bromide ion in saline rice soil after 5-year cultivation,however,some deviation exists when it was used to simulate transportation process of bromide ion in saline rice soil after 1-year cul-tivation and alkaline soil;BP network can effectively simulate transportation process of bromide ion in both saline rice soil and alkaline soil.
- channeling flow /
- saline rice soil /
- alkaline soil /
- transfer function model /
- convection-dispersion equation /
- Back-Progation Network

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Characteristics of Channeling Flow in Cultivated Horizon of Saline Rice Soil

1. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012, China;

2. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China

基金项目: Under the auspices of the Key Innovation Project of Chinese Academy of Sciences(No.KZCX1-SW-19-02)

作者简介:
LUO Jinming(1977- ),male,a native of Chengdu of Sichuan Province,Ph.D.candidate,specialized in hydrological ecology and soil water transportation.E-mail:luojm1000@sina.com.cn.

收稿日期: 2006-06-20
修回日期: 2006-09-28
刊出日期: 2006-12-20

关键词:

channeling flow /

saline rice soil /

alkaline soil /

transfer function model /

convection-dispersion equation /

Back-Progation Network

摘要: By applying bromide ion as tracer,the channeling flow has been quantitatively described in saline rice soil and alkaline soil of Da,an City,Jilin Province of China.Breakthrough curves of bromide ion in the saline rice soils after 1-year cultivation and 5-year cultivation and alkaline soil have been attained.Results show that the rice cultivation practice can improve the alkaline soil structure,however,it can accelerate the development of channeling flow pathway.Therefore,the channeling flow pathway has been developed widely in saline rice soil,but rarely in the alkaline soil.Three models of convection-dispersion equation(CDE),transfer functional model(TFM) and Back-Progation Network(BP Network) were used to simulate the transportation process of bromide ion.The peaks of probability density function of saline rice soil are higher with left skewed feature compared with that of the alkaline soil.It shows that the TFM and CDE can simulate the transportation process of the bromide ion in saline rice soil after 5-year cultivation,however,some deviation exists when it was used to simulate transportation process of bromide ion in saline rice soil after 1-year cul-tivation and alkaline soil;BP network can effectively simulate transportation process of bromide ion in both saline rice soil and alkaline soil.

English Abstract

Characteristics of Channeling Flow in Cultivated Horizon of Saline Rice Soil

1. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012, China;

2. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China

Received Date: 2006-06-20
Rev Recd Date: 2006-09-28
Publish Date: 2006-12-20

Keywords:

Abstract: By applying bromide ion as tracer,the channeling flow has been quantitatively described in saline rice soil and alkaline soil of Da,an City,Jilin Province of China.Breakthrough curves of bromide ion in the saline rice soils after 1-year cultivation and 5-year cultivation and alkaline soil have been attained.Results show that the rice cultivation practice can improve the alkaline soil structure,however,it can accelerate the development of channeling flow pathway.Therefore,the channeling flow pathway has been developed widely in saline rice soil,but rarely in the alkaline soil.Three models of convection-dispersion equation(CDE),transfer functional model(TFM) and Back-Progation Network(BP Network) were used to simulate the transportation process of bromide ion.The peaks of probability density function of saline rice soil are higher with left skewed feature compared with that of the alkaline soil.It shows that the TFM and CDE can simulate the transportation process of the bromide ion in saline rice soil after 5-year cultivation,however,some deviation exists when it was used to simulate transportation process of bromide ion in saline rice soil after 1-year cul-tivation and alkaline soil;BP network can effectively simulate transportation process of bromide ion in both saline rice soil and alkaline soil.

LUO Jinming, DENG Wei, ZHANG Xiaoping, YANG Fan, LI Xiujun. Characteristics of Channeling Flow in Cultivated Horizon of Saline Rice Soil[J]. 中国地理科学, 2006, 16(4): 342-346.

引用本文:

LUO Jinming, DENG Wei, ZHANG Xiaoping, YANG Fan, LI Xiujun. Characteristics of Channeling Flow in Cultivated Horizon of Saline Rice Soil[J]. 中国地理科学, 2006, 16(4): 342-346.

LUO Jinming, DENG Wei, ZHANG Xiaoping, YANG Fan, LI Xiujun. Characteristics of Channeling Flow in Cultivated Horizon of Saline Rice Soil[J]. Chinese Geographical Science, 2006, 16(4): 342-346.

Citation:

LUO Jinming, DENG Wei, ZHANG Xiaoping, YANG Fan, LI Xiujun. Characteristics of Channeling Flow in Cultivated Horizon of Saline Rice Soil[J]. Chinese Geographical Science, 2006, 16(4): 342-346.

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Characteristics of Channeling Flow in Cultivated Horizon of Saline Rice Soil

作者简介: LUO Jinming(1977- ),male,a native of Chengdu of Sichuan Province,Ph.D.candidate,specialized in hydrological ecology and soil water transportation.E-mail:luojm1000@sina.com.cn.

Characteristics of Channeling Flow in Cultivated Horizon of Saline Rice Soil

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Characteristics of Channeling Flow in Cultivated Horizon of Saline Rice Soil

1. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012, China; 2. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China

作者简介: LUO Jinming(1977- ),male,a native of Chengdu of Sichuan Province,Ph.D.candidate,specialized in hydrological ecology and soil water transportation.E-mail:luojm1000@sina.com.cn.

English Abstract

Characteristics of Channeling Flow in Cultivated Horizon of Saline Rice Soil

1. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012, China; 2. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China

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作者简介:
LUO Jinming(1977- ),male,a native of Chengdu of Sichuan Province,Ph.D.candidate,specialized in hydrological ecology and soil water transportation.E-mail:luojm1000@sina.com.cn.

1. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012, China;

2. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China

作者简介:
LUO Jinming(1977- ),male,a native of Chengdu of Sichuan Province,Ph.D.candidate,specialized in hydrological ecology and soil water transportation.E-mail:luojm1000@sina.com.cn.

1. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012, China;

2. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China