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[1]LI Na,LEI Guoping,ZHANG Hui,et al.Spatial-Temporal Characteristics of Farmland due to the Paddy Field Expansion in Naolihe River Basin[J].Research of Soil and Water Conservation,2016,23(05):63-67,73.

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Spatial-Temporal Characteristics of Farmland due to the Paddy Field Expansion in Naolihe River Basin

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 23 Number of periods: 2016 05 Page number: 63-67,73 Column: Public date: 2016-10-28

Title:: Spatial-Temporal Characteristics of Farmland due to the Paddy Field Expansion in Naolihe River Basin

Author(s):: LI Na¹, LEI Guoping¹, ZHANG Hui¹, ZHOU Hao²; 1. College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China;
2. Land Management Institute, Northeastern University, Shenyang 110004, China

Keywords:: land use; remote sensing; Naolihe River Basin; LUCC; farmland

CLC:: F301.2;TP79

DOI:: -

Abstract:: Based on the remote sensing data in 1990， 2000， 2013, spatial and temporal change characteristics of the arable lands during the period of becoming paddy fields in the Naolihe River Basin of Sanjiang Plain are analyzed, aiming to provide the basis for the utilization and exploitation of the arable land resources. The results showed that it was unstable for the growth of the arable lands in the Naolihe River Basin during the 20 years, and change trend of the dry lands and paddy fields was not completely according with the comprehensive change trend of the arable lands; during the period from 1990 to 2002, change trend of the dry lands was small while paddy field was big, and during the period from 2002 to 2013, the dry land area declined from 44.57% to 42.24%, while the paddy fields kept to grow with obvious slowed speeds; on arable lands transfer in, the internal conversion among subtypes in the Naolihe River Basin was obvious. The newly increased dry lands were mainly the unutilized lands, paddy fields and forestlands, while dry lands were the resources of the increased paddy fields. On arable lands transfer out, during the period from 1990 to 2002, the transferred out dry lands and paddy fields in the Naolihe River Basin were mainly the internal conversion, and the transfer trend of the transferred out dry lands and paddy fields during the period from 2002 to 2013 were basically according with the situation during the period from 1990 to 2002.

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