Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Wetland Science》 2010-02
Add to Favorite Get Latest Update

Effects and Mechanisms of Cultivation on Water Conservation Function of Soil in the Jinchuan Mire

LI Hui1,2,TANG Zhan-Hui1,2,SHENG Lian-Xi 1,2 (1.Key Laboratory for Wetland Ecology and Vegetation Restoration of National Environmental Protection,Northeast Normal University,Changchun 130024,Jilin,P.R.China;2.College of Urban and Environmental Science,Northeast Normal University,Changchun 130024,Jilin,P.R.China)  
The analysis of cumulative effects wetland soils was made under different cultivation states in the experimental fields of the Ecological Experimental Station of Mire-wetlands in the Key Laboratory of Wetland Ecology and Vegetation Restoration,Northeast Normal University.The results showed that the water conservation function and physical properties of soils changed gradually with the change of different cultivation states.The hydraulic conductivity of the natural mire wetland soil was(2.10±0.00)×10-3 cm/s before reclamation,it was(1.60±0.18)×10-3 cm/s after being cultivated for 1 years,(1.10±0.00)×10-3 cm/s after 5 years,(0.80±0.05)×10-3 cm/s after 15 years,(0.60±0.03)×10-3 cm/s after 30 years,(0.58±0.01)×10-3 cm/s after 45 years,respectively.The change of saturation storage capacity resembled with that of hydraulic conductivity,but it changed little.The saturation storage capacity of the natural mire wetland soil was(1.88±0.00)×103 t/hm2 before reclamation,it was to(1.69±0.01)×103 t/hm2 after being cultivated for 1 years,(1.49±0.03)×103 t/hm2 after 5 years,(1.30±0.05)×103 t/hm2 after 15 years,(1.17±0.01)×103 t/hm2 after 30 years,(1.07±0.02)×103 t/hm2 after 45 years,respectively.With the increasing of cultivating time,the cumulative effect rates of cultivation on water conservation function of soils fluctuated a little.The water conservation function of soils changed obviously at the early stage of cultivation,and then lowered gradually.Above all,the cumulative effects of long time cultivation makes water conservation function of soils degenerated.Great changes of soil physical properties had taken place in the study area after wetlands were reclaimed to paddy field.Conversion of mire wetland to paddy field and the length of cropping sequence continuously decreased total porosity,but bulk density increased gradually.The organic matter was also decreased under cultivation.At the early stage of cultivation the physical properties of soil changed obviously,and then lowered gradually.Variation of the organic matter was the most important factor leading to decline of water conservation function of soils.These shifts in physical property and water conservation function of soils,during the continuous cultivation sequence in this study,appeared to be associated with differences in the quantity of inputs.Annual organic matter inputs in the Jin-chuan mire wetland soils were estimated about 10.00-12.50 mg/ha compared with 4.20-6.20 mg/ha the paddy field soils with residues returned.Furthermore,the cumulative effects wetland soils of long time cultivation had changed owing to such farming modes as paddy field or dry farmland and times.
【Fund】: 东北师范大学自然科学青年基金(20080504);; 高等学校博士学科点专项科研基金(200802000008)资助
【CateGory Index】: S152.7
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
【Citations】
Chinese Journal Full-text Database 6 Hits
1 LIU Xing tu, MA Xue hui (Changchun Institute of Geography, Chinese Academy of Sciences, Changchun Jilin 130021);Influence of Large-Scale Reclamation on Natural Environment and Regional Environmental Protection in the Sanjiang Plain[J];SCIENTIA GEOGRAPHICA SINICA;2000-01
2 YAN Min hua, DENG Wei, MA Xue hui (Changchun Institute of Geography, CAS, Changchun 130021, China);Climate Variation in the Sanjiang Plain Disturbed by Large Scale Reclamation during the Last 45 Years[J];Acta Geographica Sinica;2001-02
3 SONG Chang-chun 1,2, WANG Yi-yong1, YAN Bai-xing1, LOU Yan-jing1, ZHAO Zhi-chun1 (1.Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun 130012,China; 2. Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100083,China);The Changes of the Soil Hydrothermal Condition and the Dynamics of C, N after the Mire Tillage[J];Environmental Science;2004-03
4 LUAN Zhao-qing, SONG Chang-chun, DENG Wei (Northeast Institute of Geography and Agricultural Ecology, CAS, Changchun, Jilin 130012, China);Study on Soil Fertility Variation during Wetland Reclamation and Utilization in the Naoli River Watershed of the Sanjiang Plain[J];Journal of Jilin Agricultural University;2003-05
5 YUAN Zhao-Hua~(1,2,3),LU Xian-Guo~1,Zhou Jia~(1,4)(1.Northeast Institute of Geography and Agroecology,Chinese Academy of Sciences,Changchun Jilin 130012,P.R.China;2.College of Resource and Environmental Sciences,Northeast Agricultural University,Harbin Heilongjiang 150030,P.R.China;3.Graduate School of Chinese Academy of Sciences,Beijing 100049, P.R.China;4.Life and Environmental Sciences College,Harbin Normal University,Harbin Heilongjiang 150025,P.R.China);Study on Cumulative Effects of Glebe Cultivation on Physical and Chemical Properties of Soil in the Sanjiang Plain[J];Wetland Science;2006-02
6 LU Qi1,MA Ke-ming1,ZHANG Jie-yu1,LU Tao1,NI Hong-wei2(1.State Key Laboratory of Urban and Regional Ecology/Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China;2.Institute of Natural Resources,Heilongjiang Academy of Sciences,Harbin 150040,China);Soil Nutrients of Degraded Wetland and Farmland in Sanjiang Plain.[J];Journal of Ecology and Rural Environment;2007-02
【Secondary Citations】
Chinese Journal Full-text Database 10 Hits
1 Jiang Wenlai(Chinese Academy of Agricultural Sciences,Beijing 100081);Study of Environmental Impact Assessment on the Exploitage of Wetland Resources[J];CHONGQING ENVIRONMENTAL SCIENCE;1997-05
2 WANG Chang-ke 1,2 ,L Xian-guo 1,LIU Hong-yu 1 (1. Changchun Institute of Geography, CAS, Changchun 130021; 2.Institute of Atmospheric Physics, CAS, Beijing 100029,China);Conservation of Biodiversity in the Honghe National Nature Reserve[J];Geography and Territorial Research;2001-03
3 LIU Hongyu,LU Xian-guo,ZHANG Shi-kui(Northeast Institute of Geography and Agricultural Ecology,CAS,Changchun 130012);Progress on the Study of Process of Wetland Landscape Changes and Cumulative Environmental Effects[J];Progress In Geography;2003-01
4 Liu Yinliang Yan Minhua Meng Xianmin Zhang Wenfen (Changchun Institute of Geography, Academia Sinica, Changchun 130021);EFFECT OF FOREST FIRE OF THE DA HINGGAN MOUNTAIN ON SWAMP SOIL[J];Scientia Geographica Sinica;1995-04
5 HU Jin ming 1, LIU Xing tu 2 (1. Department of Urban & Environmental Sciences, Peking University, Beijing 100871; 2. Changchun Institute of Geography, the Chinese Academy of Sciences, Changchun Jilin 130021);Evaluation and Analysis on Soil Quality Changes in the Sanjiang Plain[J];SCIENTIA GEOGRAPHICA SINICA;1999-05
6 LIU Xing tu, MA Xue hui (Changchun Institute of Geography, Chinese Academy of Sciences, Changchun Jilin 130021);Influence of Large-Scale Reclamation on Natural Environment and Regional Environmental Protection in the Sanjiang Plain[J];SCIENTIA GEOGRAPHICA SINICA;2000-01
7 LI Zhong, SUN Bo, LIN Xin xiong (Institute of Soil Science, Chinese Academy of Sciences, Nanjing, Jiangsu, 210008);Density of Soil Organic Carbon and the Factors Controlling Its Turnover in East China[J];Scientia Geographica Sinica;2001-04
8 YAN Min hua, DENG Wei, MA Xue hui (Changchun Institute of Geography, CAS, Changchun 130021, China);Climate Variation in the Sanjiang Plain Disturbed by Large Scale Reclamation during the Last 45 Years[J];Acta Geographica Sinica;2001-02
9 Yan Zhongwei(Institute of Atmospheric Physics, Chinese Academy of Sciences , Bejing, 100080);A Primary Analysis of the Process of the 1960s Northern Hemispheric Summer Climatic Jump[J];Chinese Journal of Atmospheric Sciences;1992-01
10 Fu Congbin Wang Qiang(Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100080);The Definition and Detection of the Abrupt Climatic Change[J];Chinese Journal of Atmospheric Sciences;1992-04
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved