亚热带资源与环境学报
亞熱帶資源與環境學報
아열대자원여배경학보
JOURNAL OF SUBTROPICAL RESOURCES AND ENVIRONMENT
2015年
1期
56-61
,共6页
王小红%张金凤%林开淼%卢正立%曾宏达%郭剑芬
王小紅%張金鳳%林開淼%盧正立%曾宏達%郭劍芬
왕소홍%장금봉%림개묘%로정립%증굉체%곽검분
米槠人促更新林%枯枝落叶层%现存量%养分
米櫧人促更新林%枯枝落葉層%現存量%養分
미저인촉경신림%고지락협층%현존량%양분
assisted natural regeneration forests%forest floor%standing crop%nutrients
对福建南平顺昌县不同林龄米槠（Castanopsis carlesii）人促更新林枯枝落叶层和主要营养元素现存量进行测定，探究其随林龄的变化趋势。结果表明：不同林龄米槠人促更新林枯枝落叶层现存量为3.94～4.95 t · hm－2，其中49 a生人促林枯枝落叶层现存量最小，31 a生的最大。不同林龄枯枝落叶层C、 N、 P、 K的浓度分别为44.09％～47.46％，11.9～13.8 g · kg－1，0.5～0.9 g· kg －1，1.4～5.1 g· kg －1。21 a生和49 a生人促更新林枯枝落叶层C浓度明显高于31 a生林分。49 a生人促更新林枯枝落叶层N和P浓度均高于21 a生和31 a生林分，但该林分枯枝落叶层K浓度却最低。21 a生米槠人促更新林枯枝落叶层C贮量分别是31 a生和49 a生林分的1.03倍和1.23倍，49 a生米槠人促更新林K贮量远低于21 a生和31 a生。不同林龄枯枝落叶层碳和养分贮量差异与林分特征、各林分枯枝落叶层现存量及养分浓度等有关。
對福建南平順昌縣不同林齡米櫧（Castanopsis carlesii）人促更新林枯枝落葉層和主要營養元素現存量進行測定，探究其隨林齡的變化趨勢。結果錶明：不同林齡米櫧人促更新林枯枝落葉層現存量為3.94～4.95 t · hm－2，其中49 a生人促林枯枝落葉層現存量最小，31 a生的最大。不同林齡枯枝落葉層C、 N、 P、 K的濃度分彆為44.09％～47.46％，11.9～13.8 g · kg－1，0.5～0.9 g· kg －1，1.4～5.1 g· kg －1。21 a生和49 a生人促更新林枯枝落葉層C濃度明顯高于31 a生林分。49 a生人促更新林枯枝落葉層N和P濃度均高于21 a生和31 a生林分，但該林分枯枝落葉層K濃度卻最低。21 a生米櫧人促更新林枯枝落葉層C貯量分彆是31 a生和49 a生林分的1.03倍和1.23倍，49 a生米櫧人促更新林K貯量遠低于21 a生和31 a生。不同林齡枯枝落葉層碳和養分貯量差異與林分特徵、各林分枯枝落葉層現存量及養分濃度等有關。
대복건남평순창현불동림령미저（Castanopsis carlesii）인촉경신림고지락협층화주요영양원소현존량진행측정，탐구기수림령적변화추세。결과표명：불동림령미저인촉경신림고지락협층현존량위3.94～4.95 t · hm－2，기중49 a생인촉림고지락협층현존량최소，31 a생적최대。불동림령고지락협층C、 N、 P、 K적농도분별위44.09％～47.46％，11.9～13.8 g · kg－1，0.5～0.9 g· kg －1，1.4～5.1 g· kg －1。21 a생화49 a생인촉경신림고지락협층C농도명현고우31 a생림분。49 a생인촉경신림고지락협층N화P농도균고우21 a생화31 a생림분，단해림분고지락협층K농도각최저。21 a생미저인촉경신림고지락협층C저량분별시31 a생화49 a생림분적1.03배화1.23배，49 a생미저인촉경신림K저량원저우21 a생화31 a생。불동림령고지락협층탄화양분저량차이여림분특정、각림분고지락협층현존량급양분농도등유관。
Carbon ( C) and nutrient stocks of forest floor were studied in artificial regeneration Castan-opsis carlesii forests with stand ages of 21 , 31 and 49-year old in Shunchang , Fujian.The results showed that the standing crop of forest floor ranged from 3.94 to 4.95 t · hm-2 , with the maximum mass in the 31-year old forest and the minimum in the 49-year old forest .Concentrations of C , N, P and K were 44.09%~47.46%, 11.9~13.8 g· kg-1 , 0.5~0.9 g· kg-1 and 1.4~5.1 g· kg-1 , re-spectively.C concentrations of forest floor in 21-and 49-year old forests were significantly higher than those in 31-year old forest , while concentrations of N and P in forest floor of 49-year old forest were higher than those in the 21-and 31-year old forests.Also, forest floor in the 49-year old forest had the lowest K concentration .Forest floor C stock in the 21-year old forest was 1.03 and 1.23 times higher <br> than those in the 31-and 49-year old forests , respectively .The K stock in 49-year old forest was far below it in 21-and 31-year old forests.Overall, carbon and nutrient pools of forest floor in different forests were related to forest characteristics , standing crop of forest floor , etc.
