tilth的用法

The proportions of the tilth and grassland have been the downtrend, the area of tilth has decreased by 2086.18 hm~ 2, to the extent 22.99%, and the grassland vanished in 2003, which have been transferred to the woodland and construction land.

其中，耕地、牧草地呈下降趋势，主要向林地和建设用地转移。耕地面积减少2086.18hm~2，降幅达22.99%，牧草地至2003年时已消失；

The effect of planting alfalfa on tilth in the water-short degree of local place was also little, but planting alfalfa on badlands pricked up the pressure of agriculture water resource, it would affect the sustainable development of alfalfa industry and others planting industry.

在耕地种植苜蓿对当地水资源状况几乎无影响，但利用荒地种植苜蓿加剧了当地水资源紧缺程度，影响苜蓿产业及其它种植业的可持续性发展。

The pH values of the tilth fell into the range of 4.5-5.1. The soil texture except that of the alluvial soils, were all clayey, with a clay particle content of about 30%-45%.

耕层土壤多属强酸性，pH多为4.5～5.1；土壤质地偏粘（冲积土除外），粘粒含量达30～45%；