swamp poplar

swamp poplar 基本解释

[网络] 异叶杨

网络

重点词汇

• swampn. 沼泽, 进退两难的困境 vt. 淹没, 击溃, 清除, 使陷于沼泽 vi. 陷于沼泽, 淹没
• poplarn. 杨树, 杨木 [医] 杨属植物(通常指白杨)

swamp poplar 双语例句

1. 1、 Generally, soil organic matter in the valley is low. However, soil organic matters in swamp meadow and poplar forest are relatively higher than those of other soil types.
   结果表明：拉萨河谷土壤有机质含量普遍较低，其中沼泽草甸、人工杨树林有机质含量相对较高。
2. 2、 Soil organic carbon accumulated relatively in lower soil layer in swamp meadow, poplar forest and scrub-steppe, while soil organic carbon distributed evenly in arable soils such as farmland, wasteland and plant nursery.
   沼泽草甸、杨树林和灌丛草原类型在浅层土壤积累了相对较多的有机碳，而耕作类土壤如农田、弃耕地和苗圃的有机碳垂直分布则相对较均匀。