Landscape pattern analysis of farmland under different slope

Taking Zhouning County as a study area and using the geography software, we analyze the characteristics of farmland landscape patterns at the five slope gradients and explores the human disturbance on slope farmland. The results indicate that the irrigated paddy field and non-irrigated paddy field are the most important types of farmlands distributing at the slope gradients greater than 2° less than 2°, the gradients of 2° ~ 6° and 6° ~ 15° are the two main slopes of farmlands distribute, human disturbances on the lands of slope gradient of 15° ~ 25° and > 25° are less and the fractal dimensions of most farmlands are greater than 1.4, which shows the lands are subjected to little human interferences and the patch effective area of lands is small. Rational use proposals of farmlands have been proposed.