关键词: 林木新品种;林木产量;种苗业;产业化;高效培育

Abstract:

The present demand for forestry in China is to improve ecological environment and to solve the serious shortage in wood and timber quantity. The objective of forestry is to increase timber production, so the key task for breeding is to cultivate new fast-growing and high resistant forest tree varieties. The focus of this task is to culture the nutritive growth with high-quality nutrients. In the respect of seed industry development, the production ratio for nursery stock is greater then seed. The development of clone forestry reproductive technique has further enhanced the proportion of nursery stock production. At present stage, requirement for forest quality can be solved by selection of tree species. Difficulty in breeding high resistant trees relies on the higher demand for physical environment and higher resistance to pests and diseases by forestry. Except the general limiting factors, the entire training cycle has to experience extreme conditions for decades. In view of the special nature of forestry, more support should be given by the Government, so as to address the triple pressure caused by national economic development, ecological environment improvement and needs of low-carbon economy. The paper also indicates the importance of technological innovation in forestry nursery stock and seed industry for “high efficient cultivation technology system and industrialization of new fast-growing and high resistant forest tree varieties”.

Key words: new trees variety, woods output, nursery stock , and seed industry, industrialization, high efficient cultivation