topsoil的例句大全

Angkor may have suffered problems common to modern times, including deforestation, overpopulation, topsoil degradation and erosion.

吴哥可能已经遭受过和现代相同的问题, 包括滥伐森林, 人口过剩, 表土退化和侵蚀.

When the black topsoil was all washed away, farmers moved westward and started new plantations.

当表层黑土全部被冲走之后, 农民们就向西部转移,建立新的种植园.

As the crack gets bigger, the topsoil gently slumpsand develops into a sinkhole.

但裂缝增大时,表土下降之后形成大洞.

Worse still, the annual torrential rains washed the topsoil from the hillside.

更糟的是, 每年都有暴雨把浮土从山坡上冲走.

This topsoil tends to wash away.

表层土壤要冲掉了.

Under flood conditions, great amounts of topsoil are washed to receiving streams.

在洪水泛滥时, 大量表层土壤被冲刷到承受的水流中.

Changes of topsoil P contents were gently in the trial orchard during the whole year, P contents were 0.2%~ 0.3%, and in the state of scarce;

本试验园片耕层土壤含P量全年变化平缓，在0.2%～0.3%的范围内，处于比较缺乏的状态；

NPM separately increases hydrolysable N, aminoacid N and amino sugar N in topsoil by 192.58 mg/ kg, 223.44 mg/ kg and 25.66 mg/ kg, but ammoniacal N content is decreased.

NPM处理土壤耕层水解总氮与对照相比增加192.58mg/kg、氨基酸氮增加223.44mg/kg、氨基糖氮增加25.66mg/kg，而氨态氮含量则大幅度降低；

Long term applying P separately increases contents of hydrolysable N, aminoacid N and amino sugar N in topsoil by 415.55 mg/ kg, 58.39 mg/ kg, 169.83 mg/ kg and 107.01 mg/ kg;

连续施P处理根层水解总氮、氨态氮、氨基酸氮和氨基糖氮含量分别比对照增加413.55mg/kg、58.39mg/kg、169.83mg/kg和107.01mg/kg；

Study on the Response to Growing-power of the European Oak to the Change in Exchangeable Cation in Topsoil

土壤阳离子交换量的变化与欧洲栎生长势的研究