雨强和地下孔（裂）隙度对喀斯特坡耕地养分流失的影响

姚一文,戴全厚,甘艺贤,高儒学,严友进,王玉红

Effects of Rainfall Intensity and Underground Hole (Fracture) Gap on Nutrient Loss in Karst Sloping Farmland

YAO YiWen,DAI QuanHou,GAN YiXian,GAO RuXue,YAN YouJin,WANG YuHong

表7 雨强和孔（裂）隙度与各养分流失量相关性

Table 7 Correlation between rainfall intensity and fissure porosity and nutrient loss

类型 Type 因子 Factor 径流Runoff 泥沙Sediment TN TP TK TN TP TK 地表 Surface 降雨强度 Rainfall intensity 0.921** 0.942** 0.928** 0.790** 0.687* 0.734* 孔(裂)隙度 Fissure porosity (%) -0.696* -0.632* -0.316 0.734* 0.690* 0.700* 地下Underground 降雨强度 Rainfall intensity 0.905** 0.795** 0.881** 0.722* 0.666* 0.677* 孔(裂)隙度 Fissure porosity (%) -0.781* -0.804** -0.809** 0.833** 0.806** 0.844**