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[1]ZHANG Jing,QIN Gong-wei.Study on Spatiotemporal Variation of Land Carrying Capacity in the Upper Basin of Hanjiang River[J].Research of Soil and Water Conservation,2014,21(05):106-110,115.

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Study on Spatiotemporal Variation of Land Carrying Capacity in the Upper Basin of Hanjiang River

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 21 Number of periods: 2014 05 Page number: 106-110,115 Column: Public date: 2014-10-28

Title:: Study on Spatiotemporal Variation of Land Carrying Capacity in the Upper Basin of Hanjiang River

Author(s):: ZHANG Jing¹, QIN Gong-wei²; 1. School of History and Tourism, Shaanxi University of Technology, Hanzhong, Shaanxi 723001, China;
2. School of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong, Shaanxi 723001, China

Keywords:: land carrying capacity; spatiotemporal variation; source region of Hanjiang River; Hanzhong City

CLC:: F301.24

DOI:: -

Abstract:: Hanzhong was taken as the example. From the view of population, cultivated land and yield of grain, LCC and LCCI were used to study the temporal and spatial variation of land carrying capacity based on the dimension of the county and pre-estimated the production potential of land in 2020. The results showed that: (1) from time perspective, 1990’s LCC of Hanzhong was adequate yield of grain. LCCI of Hanzhong had increased since 2000 and the status quo of LCC was overloaded till 2011; (2) from space perspective, Ningqiang, Lueyang, Xixiang County have been a little of insufficient amount since 1990, extensive production in agriculture was converted into hidden danger of food security under comprehensive effect of many factors in mountainous area; (3) compared to 5 370～5 810 kg/hm² of grain yield in 2020, speeding up the adjustment of agricultural structure, strengthening the agricultural investment in science and technology will ensure food security in this region.

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