文献类型：期刊文献

中文题名：红壤区受损湿地松林下6树种光合特性

英文题名：Photosynthetic Characteristics of 6 Trees under Pinus elliotii Forest in Red Soil Regions

作者：吴统贵[1] 曾广泉[2] 周晓萍[2] 欧阳向东[2] 虞木奎[1] 成向荣[1]

第一作者：吴统贵

机构：[1]中国林业科学研究院亚热带林业研究所;[2]江西省吉安县林业科学研究所

年份：2011

卷号：33

期号：2

起止页码：318-321

中文期刊名：江西农业大学学报

外文期刊名：Acta Agriculturae Universitatis Jiangxiensis

收录：CSTPCD;;北大核心:【北大核心2008】；CSCD:【CSCD_E2011_2012】；

基金：国家"十一五"科技支撑子课题(2006BAD03A1603);浙江省林业科技项目(06A01)

语种：中文

中文关键词：红壤;湿地松;林下植物;光合特性

外文关键词：red soil; Pinus elliotii forest; trees under forest; photosynthetic characteristics

分类号：S718.521.2;S718.54

摘要：以红壤区湿地松林下种植的6种乔灌木为研究对象,系统分析种间光合特性的差异,以期为红壤区植被恢复与重建物种材料筛选和种间配置提供理论依据。结果表明,地带性建群种黧朔锥(Castanopsis fissa)、木荷(Schima superba)具有相对较高的最大净光合速率Pmax、光补偿点LCP、光饱和点LSP和相对较低的表观量子效率AQE,说明两树种利用强光能力较强,属阳生树种;胡枝子(Lespedeza bicolor)具有最大的Pmax[(20.15±2.18)μmol/(m2.s)],但其LCP和LSP并不高,说明其光能转化率较高、生长速度快,比较适合林下生长;山茶(Camellia japonica)的AQW最低,仅(0.023±0.002)mol/mol,说明该树种在遮阴条件下很难生存;而杨桐(Adinandra millettii)和十大功劳(Mahonia fortunei)的Pmax、LCP、LSP分别是木荷的51.87%、66.99%、50.52%和20.66%、31.23%、42.45%,说明两物种利用弱光的能力较强,属阴生植物。根据各物种的光合特性可以看出,地带性建群种木荷、黧朔锥可迅速成长形成亚乔木层,胡枝子、杨桐、十大功劳可以形成灌木层,最终在湿地松林内形成立体复式结构,提高系统结构和功能。
The photosynthetic light response curves of 6 cultivated trees and shrubs under Pinus elliotii forest in red soil regions in Jiangxi Province were determined using Li-cor 6400 portable photosynthesis systems.Schima superba and Castanopsis fissa,with higher maximum photosynthesis rate（Pmax）,dark respiration（Rd）,light compensation point（LCP）,light saturation point（LSP） and lower apparent quantum efficiency（AQE）,showed higher ability for high radiation,and expressed faster growth to sub-tree layer.While,Lespedeza bicolor had the highest light utilization owing to highest Pmax [（20.15±2.18） μmol/（m2·s）] and medium LCP,LSP.While Camellia japonica,with medium lowest AQE,showed weaker ability for low radiation to reside under Pinus elliotii forest.The Pmax,LCP,LSP of Adinandra millettii,Mahonia fortunei were 51.87%,66.99%,50.52% and 20.66%,31.23%,42.45% of C.fissa,separately,and showed higher ability for low radiation and belonged to shade plants.S.superba,C.fissa,L.bicolor,C.fissa,A.millettii and M.fortunei were chosen to build multi-layer P.elliotii forest,including tree,sub-tree and shrub layers,in red soil regions.