关键词: 黑土, 有机肥, 脲酶活性, 动态变化, 土壤养分

Abstract: Based on the landscape ecological principles and methods, and using eight landscape pattern indices (landscape diversity index, evenness degree index, separation index, isolation index, fractal dimension index, and connectivity index, etc.), this paper analyzed the urban greenland landscape pattern in Shenyang. Overall, the green space had a lower proportion, its distribution was disproportional, and the structure of greenland system wasn’t reasonable. The separation index was high, the fractal dimension was low, the landscape types were rather complete, the evenness degree was low, and the isolation index was small. Aiming at these problems, some suggestions on the ecological planning of urban greenland landscape in Shenyang were put forward.

Key words: Black soil, Farmyard manure, Urease activity, Dynamic change, Soil nutrient