Abstract
Understanding the historical change of agricultural landscape patterns is the basis for promoting the sustainable development of cultivated land, as well as appropriate decision-making. In order to analyze spatio-temporal changes of cultivated land in Sanjiang Plain, from 1985–2015, Landsat Thematic Mapper (TM) and Operational Land Imager (OLI) were used to reconstruct satellite data of land use and land cover. Additionally, twelve landscape indices were selected to analyze landscape pattern changes and to compare the differences of cultivated landscape changes between the agricultural region and the reclamation region. Studies suggested that during the past 30 years, cultivated land in the study area grew rapidly, with a rapid growth of paddy fields and a slow reduction of dry farmland. This trend was more obvious in the reclamation region than it was in the agricultural region, where both dry farmland and paddy fields showed a growth trend in the past 30 years. Our study showed that paddies have become the dominant agricultural landscape and that fragmentation of paddy fields has decreased, while dry farmland has increased over the past 30 years, within the entire study area. Different management modes have caused major differences between the agricultural region and the reclamation region.
Highlights
As an important part and a major cause of global environmental change [1], land use and cover change (LUCC) has been an important research subject for world environmental change and sustainable development
The ratio of paddy field in cultivated land increased from 2.96% to 86.33% in the reclamation region, while it increased from 2.28% to 32% in the agricultural region
During the past 30 years, cultivated land in Fujin City showed a growth trend with the rapid growth of paddy fields and slow reduction of dry farmland. This trend is more obvious in the reclamation region than in the agricultural region, where both dry farmland and paddy fields show a growth trend
Summary
As an important part and a major cause of global environmental change [1], land use and cover change (LUCC) has been an important research subject for world environmental change and sustainable development. LUCC can affect water cycling [2,3], regional climate [4,5], food production [6,7], and greenhouse gas emissions [8,9]. The Global Land Project (GLP), which was sponsored by the International Geosphere-Biosphere Programme (IGBP) and the International Human Dimensions. Programme (IHDP), began in 2005, and emphasized the integration and simulation of the coupled human-environment system [10,11]. LUCC is driven by multi-scale driving forces [10,12], such as the global economy, international policies, climate change, and regional soil properties. The GLP emphasized the impact of different management modes and policies on LUCC in studying its driving forces [11,14]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
