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通过陕甘三县不同坡度坡地和梯地典型地块的作物单产、各项农事活动用工情况的调查统计 ,对“长治”坡改梯工程提高土地产出率和劳动生产率的效益进行了剖析。坡地改造为梯地 ,土地产出率平均提高 30 .9%。梯地用肥多 ,产量高 ,运量大 ,坡改梯工程不修建田间道路 ,仍采用人工背运输 ,劳动生产率提高有限 ,仅 5 .6 %。修建田间道路 ,采用车辆运输 ,可大幅度提高梯地劳动生产率和坡地人背运输相比 ,梯地架子车和四轮拖拉机运输 ,劳动生产率分别提高 4 5 .2 0 %和 88.5 %。坡地改造为梯地 ,应用地膜覆盖等先进农业技术 ,可大幅度提高土地产出率和劳动生产率 ,和 2 0°坡地相比 ,分别提高 189.4 %和 73.6 %。
According to the survey and statistics of the crop yield and various agricultural activities in the typical land plots of different slopes and staircases in the Shan and Gan counties, the benefits of improving land productivity and labor productivity in the “Changzhi” slope-upgrading project were analyzed. The conversion of sloping land to land ladder will increase land output rate by an average of 30.9%. Landslide with more fertilizer, high yield, large capacity, slope to ladder project does not build the field road, still using artificial back transport, labor productivity increase is limited, only 5.6%. The construction of farmland roads and the use of vehicle transport can greatly improve the productivity of workplaces on landings. Compared with the transport of people on sloping land, the transportation of trailers and four-wheel tractors on elevators has increased labor productivity by 45.2% and 88.5% respectively. The conversion of sloping fields to steep slopes and the application of advanced agricultural techniques such as plastic film mulching have greatly improved land productivity and labor productivity, up 189.4% and 73.6% respectively over the 20 ° slop.