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木兰县对影响农业发展的因素剖析主要有四条 ,一是降水量大强度大、垂直差异大、时空分布不均、水土流失严重 ;二是耕地坡度大、黑土层薄、结构不良、底土粘朽、渗透性、抗蚀抗冲性弱 ;三是耕地退化 ,旱涝灾害增多 ,坡地生产力下降 ;四是农业结构不合理 ,耕作制度混乱 ,生态系统失调。为此 ,近年研究推广水土保持耕作技术措施 ,建立了坡田侵蚀控制耕作制度。
There are four main factors that influence the development of agriculture in Mulan County: first, large intensity of precipitation, large vertical difference, uneven spatial and temporal distribution and serious water and soil loss; second, large cultivated land slope, thin black soil layer, poor structure, , Permeability, corrosion and weakness; Third, arable land degradation, increased droughts and floods, slope productivity decreased; Fourth, irrational agricultural structure, farming system chaos, ecosystem disorders. To this end, in recent years, research and promotion of soil and water conservation farming techniques and measures to establish a slope erosion control farming system.