我国北方农牧交错带西段退耕对土壤保持功能影响研究
殷小菡, 孙希华, 徐新良, 张雪艳, 陈德超

The Impact of Returning Farmland on Soil Conservation Function in the Western Region of Farming-pastoral Ecotone of Northern China
YIN Xiaohan,SUN Xihua,XU Xinliang,ZHANG Xueyan,CHEN Dechao
表1 不同坡度条件下的耕地P因子值
Tab. 1 P-factor value of farmland under different slope conditions
坡度范围 <5° 5~10° 10~15° 15~20° 20~25° >25°
P值 0.100 0.221 0.305 0.575 0.705 0.800