In Yellow River Delta, the biological and ecological characteristics of an invasive alien species spartina were investigated.
对黄河三角洲外来入侵物种米草的生物学、生态学特性进行了观测和研究。
It is very important to study and grasp the biological and ecological characteristics of Alhagi in order to effectively protect and properly utilize it.
研究和了解骆驼刺的生物生态学特性，是对骆驼刺进行有效保护和合理利用的重要前提。
The biological and ecological characteristics as well as habitat condition of Picea sitchensis have been briefed; meanwhile the study direction of its species introduction has been advanced.
简要介绍了西加云杉的生物生态学特性及其生境条件，并提出了该树种引种的研究方向。
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