CAJ | 학술논문

在福建省政和县杨源乡对相似生境下4年生的马尾松、湿地松幼树生物量和养分积累进行研究，结果表明：除枝生物量为湿地松小于马尾松之外，湿地松幼林的干、皮、叶、主根、侧根生物量均高于马尾松幼林，林分生物量为湿地松大于马尾松；林分不同养分元素的平均含量，C、K、Mg含量为湿地松大于马尾松，N、P、Ca、Fe含量为马尾松大于湿地松；不同部位养分元素含量以叶最大，其次为侧根、枝和皮；不同养分积累量，N、P、Ca的积累量为马尾松大于湿地松，C、K、Mg、Fe的积累量为湿地松大于马尾松。养分利用效率计算表明，湿地松幼林对各养分元素的利用效率高于马尾松，在干物质产出相同的情况下，湿地松幼林从土壤中带走的养分少于马尾松。
재복건성정화현양원향대상사생경하4년생적마미송、습지송유수생물량화양분적루진행연구，결과표명：제지생물량위습지송소우마미송지외，습지송유림적간、피、협、주근、측근생물량균고우마미송유림，림분생물량위습지송대우마미송；림분불동양분원소적평균함량，C、K、Mg함량위습지송대우마미송，N、P、Ca、Fe함량위마미송대우습지송；불동부위양분원소함량이협최대，기차위측근、지화피；불동양분적루량，N、P、Ca적적루량위마미송대우습지송，C、K、Mg、Fe적적루량위습지송대우마미송。양분이용효솔계산표명，습지송유림대각양분원소적이용효솔고우마미송，재간물질산출상동적정황하，습지송유림종토양중대주적양분소우마미송。
The biomass and nutrient accumulation of pinus massoniana and pinus elliottii saplings with the same forest age under simi-lar habitat were studied in Yangyuan Village,Zhenghe County,Fujian Province,the results showed that the biomass of stem,bark, leaf,main root and lateral root were pinus elliottii>pinus massoniana,the stand biomass of pinus elliottii forest was higher than pinus massoniana;the concentration of N、P、Ca、Fe was pinus massonian>pinus elliottii,the concentration of nutrient elements in leaves was higher than other different parts,followed by lateral root,branch and skin;the nutrient accumulation of N,P and Ca was pinus massoniana>pinus elliottii,the nutrient accumulation of C、K、Mg、Fe was pinus elliottii>pinus massoniana,nutrient use efficiency calculation showed that pinus elliottii young forest use efficiency of various nutrient elements was higher than that of pinus massoni-ana,with the same dry matter production,the nutrient took away from the soil in pinus elliottii forest was less than that in pinus mas-soniana forest.