详细信息
不同纬度栓皮栎幼苗生理生态特征的比较 被引量:13
Comparison on the Physio-ecological Characteristics of Quercus variabilis Seedlings from Various Latitude Sites
文献类型:期刊文献
中文题名:不同纬度栓皮栎幼苗生理生态特征的比较
英文题名:Comparison on the Physio-ecological Characteristics of Quercus variabilis Seedlings from Various Latitude Sites
作者:刘建锋[1] 肖文发[2] 熊定鹏[3] 雷静品[1] 王鹏程[3]
第一作者:刘建锋
机构:[1]中国林业科学研究院林业研究所,国家林业局林木培育重点实验室,北京100091;[2]中国林业科学研究院森林生态环境与保护研究所,北京100091;[3]华中农业大学园艺林学学院,武汉430070
年份:2011
卷号:31
期号:4
起止页码:467-471
中文期刊名:植物研究
外文期刊名:Bulletin of Botanical Research
收录:CSTPCD;;北大核心:【北大核心2008】;CSCD:【CSCD2011_2012】;
基金:国家林业局林业公益性行业科研专项(200804001)
语种:中文
中文关键词:栓皮栎;幼苗;纬度;叶性状;生物量分配
外文关键词:Quercus variabilis; seedlings; latitude; leaf characteristics; biomass allocation
分类号:S718.45
摘要:在栓皮栎天然分布的南界(云南安宁,YN)、中心(湖北鹤峰,HB)和北界(辽宁庄河,LN)各选择1个群体作为研究对象,对各群体栓皮栎幼苗叶片的大小、叶绿素含量、氮含量、光响应参数和全株生物量分配等进行了测定,结果表明:处于相对高纬度的LN群体在叶片长与宽、长宽比及叶面积均大于中低纬度的HB和YN群体;叶片叶绿素含量和氮含量随纬度的增加而增加;高纬度群体(LN)具有较高的表观量子效率(α)和暗呼吸速率(Rd),而低纬度群体(YN)则具有较高的最大光合速率(Pmax)和较低的光补偿点(LCP);高纬度群体(LN)对地上部分的投入高于中低纬度的HB和YN群体,而HB和YN群体将更多的光合生产物质输送至地下部分。
To detect the latitudinal variances in seedlings leaf characteristics and biomass allocation patterns,three natural distribution populations of Quercus variabilis were selected from the southern(Anning county,Yunnan province,YN),central(Hefeng county,Hubei province,HB) and north boundary(Zhuanghe county,Liaoning province,LN).The leaf size,chlorophyll content,nitrogen content,light response parameters and the whole plant biomass allocation were measured.The results showed that:leaf length and width,the ratio of leaf length to width,and leaf area of relative high-latitude groups(LN) were greater than these of low-latitude groups(HB and YN).Leaf chlorophyll content and nitrogen content were found to increase with latitude.The high-latitude group(LN) had higher apparent quantum efficiency(α) and dark respiration rate(Rd),while the low-latitude populations(YN) showed higher maximum photosynthetic rate(Pmax) and lower light compensation point(LCP).High-latitude group(LN) invested more matter into the aboveground biomass than the HB and the YN groups,which put more photosynthetic production into the roots.
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