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Soil Degradation and Food Security Coupled with Global Climate Change in Northeastern China

GONG Huili MENG Dan LI Xiaojuan ZHU Feng

GONG Huili, MENG Dan, LI Xiaojuan, ZHU Feng. Soil Degradation and Food Security Coupled with Global Climate Change in Northeastern China[J]. 中国地理科学, 2013, 23(5): 562-573. doi: 10.1007/s11769-013-0626-5
引用本文: GONG Huili, MENG Dan, LI Xiaojuan, ZHU Feng. Soil Degradation and Food Security Coupled with Global Climate Change in Northeastern China[J]. 中国地理科学, 2013, 23(5): 562-573. doi: 10.1007/s11769-013-0626-5
GONG Huili, MENG Dan, LI Xiaojuan, ZHU Feng. Soil Degradation and Food Security Coupled with Global Climate Change in Northeastern China[J]. Chinese Geographical Science, 2013, 23(5): 562-573. doi: 10.1007/s11769-013-0626-5
Citation: GONG Huili, MENG Dan, LI Xiaojuan, ZHU Feng. Soil Degradation and Food Security Coupled with Global Climate Change in Northeastern China[J]. Chinese Geographical Science, 2013, 23(5): 562-573. doi: 10.1007/s11769-013-0626-5

Soil Degradation and Food Security Coupled with Global Climate Change in Northeastern China

doi: 10.1007/s11769-013-0626-5
基金项目: Foundation item: Under the auspices of National Natural Science Foundation of China (No. 41171335), Hydroinformatics for Ecohydrology Program of United Nations Educational, Scientific and Cultural Organization (UNESCO), China Postdoctoral Science Foundation (No. 20110490447), Beijing Postdoctoral Science Foundation (No. 2012-49)
详细信息
    通讯作者:

    MENG Dan,E-mail: mengd811@gmail.com

Soil Degradation and Food Security Coupled with Global Climate Change in Northeastern China

Funds: Foundation item: Under the auspices of National Natural Science Foundation of China (No. 41171335), Hydroinformatics for Ecohydrology Program of United Nations Educational, Scientific and Cultural Organization (UNESCO), China Postdoctoral Science Foundation (No. 20110490447), Beijing Postdoctoral Science Foundation (No. 2012-49)
More Information
    Corresponding author: MENG Dan,E-mail: mengd811@gmail.com
  • 摘要: The northeastern China is an important commodity grain region in China, as well as a notable corn belt and major soybean producing area. It thus plays a significant role in the national food security system. However, large-scale land reclamation and non-optimum farming practices give rise to soil degradation in the region. This study analyzed the food security issues coupled with global climate change in the northeastern China during 1980-2000, which is the period of modern agriculture. The results of statistical data show that the arable land area shrank markedly in 1992, and then increased slowly, while food production generally continually increased. The stable grain yield was due to the increase of applied fertilizer and irrigated areas. Soil degradation in the northeastern China includes severe soil erosion, reduced soil nutrients, a thinner black soil layer, and deterioration of soil physical properties. The sustainable development of the northeastern China is influenced by natural-artificial binary disturbance factors which consist of meteorological conditions, climate changes, and terrain factors as well as soil physical and chemical properties. Interactions between the increasing temperature and decreasing precipitation in the region led to reduced accumulation of soil organic matter, which results in poor soil fertility. Human-induced factors, such as large-scale land reclamation and non-optimum farming practices, unsuitable cultivation systems, dredging, road building, illegal land occupation, and extensive use of fertilizers and pesticides, have led to increasingly severe soil erosion and destruction. Solutions to several problems of soil degradation in this region requiring urgent settlement are proposed. A need for clear and systematic recognition and recording of land use changes, land degradation, food production and climate change conditions is suggested, which would provide a reference for food security studies in the northeastern China.
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出版历程
  • 收稿日期:  2012-09-26
  • 修回日期:  2012-11-23
  • 刊出日期:  2013-09-10

Soil Degradation and Food Security Coupled with Global Climate Change in Northeastern China

doi: 10.1007/s11769-013-0626-5
    基金项目:  Foundation item: Under the auspices of National Natural Science Foundation of China (No. 41171335), Hydroinformatics for Ecohydrology Program of United Nations Educational, Scientific and Cultural Organization (UNESCO), China Postdoctoral Science Foundation (No. 20110490447), Beijing Postdoctoral Science Foundation (No. 2012-49)
    通讯作者: MENG Dan,E-mail: mengd811@gmail.com

摘要: The northeastern China is an important commodity grain region in China, as well as a notable corn belt and major soybean producing area. It thus plays a significant role in the national food security system. However, large-scale land reclamation and non-optimum farming practices give rise to soil degradation in the region. This study analyzed the food security issues coupled with global climate change in the northeastern China during 1980-2000, which is the period of modern agriculture. The results of statistical data show that the arable land area shrank markedly in 1992, and then increased slowly, while food production generally continually increased. The stable grain yield was due to the increase of applied fertilizer and irrigated areas. Soil degradation in the northeastern China includes severe soil erosion, reduced soil nutrients, a thinner black soil layer, and deterioration of soil physical properties. The sustainable development of the northeastern China is influenced by natural-artificial binary disturbance factors which consist of meteorological conditions, climate changes, and terrain factors as well as soil physical and chemical properties. Interactions between the increasing temperature and decreasing precipitation in the region led to reduced accumulation of soil organic matter, which results in poor soil fertility. Human-induced factors, such as large-scale land reclamation and non-optimum farming practices, unsuitable cultivation systems, dredging, road building, illegal land occupation, and extensive use of fertilizers and pesticides, have led to increasingly severe soil erosion and destruction. Solutions to several problems of soil degradation in this region requiring urgent settlement are proposed. A need for clear and systematic recognition and recording of land use changes, land degradation, food production and climate change conditions is suggested, which would provide a reference for food security studies in the northeastern China.

English Abstract

GONG Huili, MENG Dan, LI Xiaojuan, ZHU Feng. Soil Degradation and Food Security Coupled with Global Climate Change in Northeastern China[J]. 中国地理科学, 2013, 23(5): 562-573. doi: 10.1007/s11769-013-0626-5
引用本文: GONG Huili, MENG Dan, LI Xiaojuan, ZHU Feng. Soil Degradation and Food Security Coupled with Global Climate Change in Northeastern China[J]. 中国地理科学, 2013, 23(5): 562-573. doi: 10.1007/s11769-013-0626-5
GONG Huili, MENG Dan, LI Xiaojuan, ZHU Feng. Soil Degradation and Food Security Coupled with Global Climate Change in Northeastern China[J]. Chinese Geographical Science, 2013, 23(5): 562-573. doi: 10.1007/s11769-013-0626-5
Citation: GONG Huili, MENG Dan, LI Xiaojuan, ZHU Feng. Soil Degradation and Food Security Coupled with Global Climate Change in Northeastern China[J]. Chinese Geographical Science, 2013, 23(5): 562-573. doi: 10.1007/s11769-013-0626-5
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