Biomass and Nutrient Accumulation Characteristics of Young Stands of Alnus cremastogyne

• Published in: Agricultural biotechnology (Pawtucket, R.I.) Vol. 7; no. 1; pp. 50 - 54
• Main Authors: Min, Admin, Wang, Yong, Liu, Xingliang, Wang, Yu, Wang, Li, Li, Hongxia, Cai, Xiaohu, An, Yongming
• Format: Journal Article
• Language: English
• Published: Cranston Wu Chu (USA-China) Science and Culture Media Corporation 01.02.2018
• Subjects: Accumulation; Age; Altitude; Biomass; Breeding; Calcium; Fertilization; Forestry; Forests; Growth rate; Investigations; Iron; Latitude; Longitude; Magnesium; Nutrients; Organs; Raw materials; Soil conditions; Soil fertility; Timber; Trees; Zinc; Beijing China; China
• ISSN: 2164-4993

The results showed that the average biomass of the whole true and the biomass of leaf, branch, stem, and root were in positive correLation with tree age, but the growth rate of biomass had a decreasing trend with the tree age increasing, and only the biomass proportion of the trunk in the whole individual plant showed an increasing trend with age. Fertilization on young A. cremastogyne stand is one of the key measures for improving yield and realizing anticipated breeding targets. [...]the research about the biomass and distribution and accumulation of nutrient elements in organs of young A. cremastogyne plants could guide rational fertilization on young stand of A. cremastogyne in production. Hie investigated forest is located in Xuzhou Town, Shuanghan Township and Xianfeng Township in Zitong County, MianyangCity, Sichuan Province (104°57' - 1Q5°28' east longitude, 31°25' -31°52' North latitude) , with an altitude of 520-650 m, and Fubao State Forest Farm located in Hejiang County, Luzhou City, Sichuan Province (105°32' -106"28' east longitude, 28°27' - 29°01' North latitude) , with an altitude of 920 -1 100 m. Methods Selection of investigation field ¡ The young stands af A. cremastogyne at the age of 1 - 4 years with the same site conditions ( soil type, thickness, slope, exposure and altitude) and operating management were selected as the investigation objects. [...]in the average tree, the order of the accumulations of different nutrient elements was not affected by tree age, and was N > Ca > К > Mg > P > Fe > Zn.