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Analysis of Cultivated Land Utilization Intensity and Potential in the Farming-Pastoral Fragile Ecological Area of Northern Tongliao

  • 1. China University of Geosciences Great Wall College, Baoding 071001, China;
    2. College of Resources and Environmental Sciences, Agricultural University of Hebei, Baoding 071001, China;
    3. Shijiazhuang Brothers Land Environmental Techndogy Services Ltd., Shijiazhuang 050091, China

Received date: 2010-05-19

  Revised date: 2010-08-11

  Online published: 2010-12-20


The cultivated land in farming-pastoral fragile ecological area has high sensitivity characteristics, its use of intensity and potential for regional analysis can provide important support for sustainable land use. On the basis of agricultural land classification and gradation results, four counties in northern Tongliao were selected to analyses cultivated land utilization intensity and potential in fragile ecological area of farming-pastoral zone in North China. The results indicate: 1) The productivity is lower in the north and northeast of the study area. The highest productivity area is the belt region which runs through the northeast to the southwest of Kailu County and distributed in the West Liaohe River of Horqin District. 2) The various production levels in the West Liaohe Plain are higher than that of the Daxinganling hilly region, indicating that light, temperature, water, soil and other natural factors have a major influence on the productivity. The differences of achievable productivity between different counties are less than the theoretical productivity, indicating the fundamental for productivity growth is utilization and management. 3) Theoretical utilization intensity decreased from southwest to northeast, and the theoretical utilization potential decreased from east to west; the achievable utilization intensity decreased from south to north, and the achievable utilization potential can be realized from west to east. 4) The central and southeastern parts are the major grain-producing areas. We should put more emphasis on the promotion of agricultural technology and focus on resolving the land use extensive and illegal occupation of arable land issues. But in the north hilly region, we must pay more attention to protect ecology, and the area which is unsuitable for farming must be returning to forests and pasture.

Cite this article

QI Yue-pu, CUI Yong-qing, LI Xin-wang, WANG Shu-tao, SUN Jing-lu, GENG Zhi-Kuo . Analysis of Cultivated Land Utilization Intensity and Potential in the Farming-Pastoral Fragile Ecological Area of Northern Tongliao[J]. JOURNAL OF NATURAL RESOURCES, 2010 , 25(12) : 2072 -2080 . DOI: 10.11849/zrzyxb.2010.12.008


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