It used to be a custom to plant a few new trees around the family graves, but nowadays people tend to plant tress in a larger area.
而清明植树，其实也是传统的沿袭，只是古人只在祖坟植树，而今则扩大了范围。
The summaries on nitrogen deposition are displayed from the aspects including plant growth and phytotrophy and plant tress resistance and litter decomposition and the invasion of non - native plants.
为了更好地研究氮沉降这一环境变化，从植物生长、植物抗逆性、植物营养、凋落物分解、以及外来植物入侵等方面对氮沉降进行了综述。
One is to plant arbor tress with huge crown to shade the square while the square is mainly paved with rigid material.
一种是种植树冠巨大的乔木为广场遮荫，广场上以硬质铺装为主。
One is to plant arbor tress with huge crown to shade the square while the square is mainly paved with rigid material.
一种是种植树冠巨大的乔木为广场遮荫，广场上以硬质铺装为主。
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