Production of some clonally seeds were low, these lines were easy to be lost while planting.
由于部分无性系种子产量低,育苗、造时这些家系容易丢失。
Production of some clonally seeds were low, these lines were easy to be lost while planting.
由于部分无性系种子产量低,育苗、造时这些家系容易丢失。
Abstract : In dry area or sandy dryland, for the reason of scarce rainfall, windiness and lack of labor power and material resources, the low survivor ratio of afforestation were common.
摘要 : 在干旱或区造,降雨稀少,风多且风大,加之人力、物力的贫乏等原因,导致造成活率低。
Tree cutting organizations or private individuals shall, in accordance with the area, number of trees, tree species and period of time specified in the cutting license, finish the reforestation task; the area and number of trees in the reforestation shall not be smaller than those cut.
采伐木的单位或者个人,必须按照采伐许可证规定的、数、树种、期限完成更新造任务,更新造的和数不得少于采伐的和数。
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