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在 ４个流域进行 ３ ａ（１９９４－ １９９６年）试验，研究免耕、中耕、除草对浅层地下水补给量的影响，以天然草地为对照。每个流域打３眼井，以监测各月地下水位变化情况。用平均指数、地下水补给量两个指标表示地下水变化情况。结果表明：天然草地的平均指数最大，为０．７；中耕的为０．６；除草的为０．２；免耕的为０．０６。在正常年及丰水年，天然草地地下水补给量高于各耕作措施；而在干旱年，天然草地无地下水朴给量，各耕作措施的地下水补给量较低，中耕的为 １０．４－２０．８ ｃｍ；免耕的为 ３．８－ １１．７ ｃｍ；除草的为 ２．０－ １０．９ ｃｍ。这是由于夏季休闲，秋冬季蒸发量低的缘故。
The 3-year (1994-1996) experiment was conducted in 4 basins to study the effects of no-tillage, middle-cropping and weeding on the recharge of shallow groundwater. Natural grassland was used as a control. Three wells were drilled in each catchment to monitor changes in the groundwater level for each month. With the average index, groundwater recharge two indicators of groundwater changes. The results showed that the average index of natural grassland was the highest, which was 0.7; 0.6 for cultivating, 0.2 for weeding and 0.06 for no-till. In normal years and wet years, the natural grassland groundwater recharge was higher than the tillage measures; in the dry years, there was no groundwater recharge in the natural grassland, and the groundwater recharge was lower in all tillage measures. The cultivated area was 10.4-20 .8 cm for tillage; 3.8 to 11.7 cm for tillage and 2.0 to 10.9 cm for weeding. This is due to summer leisure, autumn and winter evaporation low reason.