Study on the Method of Soil Productivity Assessment in Black Soil Region of Northeast ChinaOA
Study on the Method of Soil Productivity Assessment in Black Soil Region of Northeast China
The objective of this paper is to investigate a simple and practical method for soil productivity assessment in the black soil region of Northeast China.Firstly,eight kinds of physicochemical properties for each of 120 soi…查看全部>>
The objective of this paper is to investigate a simple and practical method for soil productivity assessment in the black soil region of Northeast China.Firstly,eight kinds of physicochemical properties for each of 120 soil samples collected from 25 black soil profiles were analyzed using cluster and correlation analysis.Subsequently,parameter indices were calculated using physicochemical properties.Finally,a modified productivity index(MPI)model were …查看全部>>
DUAN Xing-wu;XIE Yun;FENG Yan-jie;YIN Shui-qing
State Key Laboratory of Earth Surface Processes and Resource Ecology,School of Geography,Beijing Normal University,Beijing 100875,P.R.ChinaState Key Laboratory of Earth Surface Processes and Resource Ecology,School of Geography,Beijing Normal University,Beijing 100875,P.R.ChinaState Key Laboratory of Earth Surface Processes and Resource Ecology,School of Geography,Beijing Normal University,Beijing 100875,P.R.ChinaState Key Laboratory of Earth Surface Processes and Resource Ecology,School of Geography,Beijing Normal University,Beijing 100875,P.R.China
农业科学
PI,MPI,soil productivity,black soil region of Northeast China
PI,MPI,soil productivity,black soil region of Northeast China
《中国农业科学（英文版）》 2009 (4)
472-481,10
This work was supported by the National Natural Science Foundation of China(4067111).
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