JOURNAL OF NATURAL RESOURCES ›› 2016, Vol. 31 ›› Issue (3): 447-456.doi: 10.11849/zrzyxb.20150218

• Resource Evaluation • Previous Articles     Next Articles

Site Condition Assessment during Prime Farmland Demarcating

QIAN Feng-kui1, 2, ZHANG Lin-lin1, JIA Lu1, WANG Shan-wei1   

  1. 1. College of Land and Environment, Shenyang Agriculture University, Shenyang 110161, China;
    2. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
  • Received:2015-03-09 Online:2016-03-15 Published:2016-03-15
  • Supported by:
    Liaoning Social Science Planning Fund, No.L15BGL039; Liaoning Talents Support Program of Higher Education, No.LJQ2015102National Natural Science Foundation of China, No.41340011; Doctoral Program of the Ministry of Education, No.20122103120012

Abstract: Good quality and stable site conditions of farmland are important basic qualifications of demarcating permanent basic farmland. The researches of basic farmland concentrated more on farmland quality but less on farmland site conditions, which has made the basic farmland be adjusted frequently and be unstable. Taking the Donggang City in Liaoning Province as the research case, this paper explores the questions of basic farmland demarcating from the point of farmland's site conditions under the condition of guaranteeing the good and uniform quality of farmland. The research constructed the assessment system of farmland site condition by location factors and farming convenience factors. It calculated the quantified effecting values of farmland site condition factors with exponential decay model and calculated the risk distance and stable region with correlation analysis model. The results showed that: 1) the site conditions are the important composition of permanent basic farmland and have great effect on the stability of basic farmland; 2) the location factors have negative impact on the risk of farmland being occupied in certain distance, and have positive impact beyond the risk distance with the effect attenuating gradually in concentric circles; and 3) the farmland site condition in Donggang City is divided into four grades, the area of farmlands of first grade, second grade and third grade is 89 954 hm2, accounting for 86.30% of the farmland. They have better site location and farming convenience, thus are suitable for basic farmland.

CLC Number: 

  • F323.211