植物资源与环境学报
植物資源與環境學報
식물자원여배경학보
JOURNAL OF PLANT RESOURCES AND ENVIRONMENT
2014年
2期
34-40
,共7页
崔珺%柯立%张驰%周佳佳%徐小牛
崔珺%柯立%張馳%週佳佳%徐小牛
최군%가립%장치%주가가%서소우
亚热带常绿阔叶林%灌木层%叶片%养分特征%比叶面积%相关性
亞熱帶常綠闊葉林%灌木層%葉片%養分特徵%比葉麵積%相關性
아열대상록활협림%관목층%협편%양분특정%비협면적%상관성
subtropical evergreen broad-leaved forest%shrub layer%leaf%nutrient characteristics%specific leaf area%correlation
对皖南亚热带常绿阔叶林林下灌木层主要树种草珊瑚〔Sarcandra glabra ( Thunb.) Nakai〕、乌药〔Lindera aggregata ( Sims) Kosterm.〕、香桂( Cinnamomum subavenium Miq.)、红楠( Machilus thunbergii Sieb. et Zucc.)、连蕊茶〔Camellia cuspidata ( Kochs ) H. J. Veitch〕、甜槠〔Castanopsis eyrei ( Champ. ex Benth.) Tutch.〕、矩叶鼠刺( Itea oblonga Hand.-Mazz.)、红淡比( Cleyera japonica Thunb.)和小叶蚊母树〔Distylium buxifolium ( Hance) Merr.〕叶片养分(包括C、N、P、K、Ca和Mg)含量、单位叶面积养分含量和比叶面积进行了测定,并分析了比叶面积与养分含量和单位叶面积养分含量的相关性。结果表明：9种树种叶片的C、N、P、K、Ca和Mg含量分别为438.09~492.31、9.79~15.60、0.33~2.06、11.39~32.52、3.84~13.34和2.85~14.05 g·kg-1,单位叶面积C、N、P、K、Ca和Mg含量分别为24.48~47.38、0.66~1.03、0.02~0.21、0.73~1.82、0.22~1.35和0.20~1.05 g·m-2,C/N比、C/P比和N/P比分别为31.40~47.88、227.76~1495.66和5.26~32.90。9种树种叶片的比叶面积平均值为14.5 m2·kg-1,其中草珊瑚的比叶面积最大(17.90 m2·kg-1)、小叶蚊母树的比叶面积最小(9.89 m2·kg-1)。相关性分析结果表明：供试树种叶片的C/P比与N/P比间呈极显著正相关；比叶面积与叶片N含量呈显著正相关,与单位叶面积C、N和Ca含量分别呈极显著和显著负相关,与其他指标的相关性均不显著。综合分析结果表明：皖南亚热带常绿阔叶林下灌木层主要树种叶片的养分含量及比叶面积差异明显,其中,乌药、草珊瑚、矩叶鼠刺和香桂叶片的养分含量较高,而小叶蚊母树、红淡比和红楠的单位叶面积养分含量较高。
對皖南亞熱帶常綠闊葉林林下灌木層主要樹種草珊瑚〔Sarcandra glabra ( Thunb.) Nakai〕、烏藥〔Lindera aggregata ( Sims) Kosterm.〕、香桂( Cinnamomum subavenium Miq.)、紅楠( Machilus thunbergii Sieb. et Zucc.)、連蕊茶〔Camellia cuspidata ( Kochs ) H. J. Veitch〕、甜櫧〔Castanopsis eyrei ( Champ. ex Benth.) Tutch.〕、矩葉鼠刺( Itea oblonga Hand.-Mazz.)、紅淡比( Cleyera japonica Thunb.)和小葉蚊母樹〔Distylium buxifolium ( Hance) Merr.〕葉片養分(包括C、N、P、K、Ca和Mg)含量、單位葉麵積養分含量和比葉麵積進行瞭測定,併分析瞭比葉麵積與養分含量和單位葉麵積養分含量的相關性。結果錶明：9種樹種葉片的C、N、P、K、Ca和Mg含量分彆為438.09~492.31、9.79~15.60、0.33~2.06、11.39~32.52、3.84~13.34和2.85~14.05 g·kg-1,單位葉麵積C、N、P、K、Ca和Mg含量分彆為24.48~47.38、0.66~1.03、0.02~0.21、0.73~1.82、0.22~1.35和0.20~1.05 g·m-2,C/N比、C/P比和N/P比分彆為31.40~47.88、227.76~1495.66和5.26~32.90。9種樹種葉片的比葉麵積平均值為14.5 m2·kg-1,其中草珊瑚的比葉麵積最大(17.90 m2·kg-1)、小葉蚊母樹的比葉麵積最小(9.89 m2·kg-1)。相關性分析結果錶明：供試樹種葉片的C/P比與N/P比間呈極顯著正相關；比葉麵積與葉片N含量呈顯著正相關,與單位葉麵積C、N和Ca含量分彆呈極顯著和顯著負相關,與其他指標的相關性均不顯著。綜閤分析結果錶明：皖南亞熱帶常綠闊葉林下灌木層主要樹種葉片的養分含量及比葉麵積差異明顯,其中,烏藥、草珊瑚、矩葉鼠刺和香桂葉片的養分含量較高,而小葉蚊母樹、紅淡比和紅楠的單位葉麵積養分含量較高。
대환남아열대상록활협림림하관목층주요수충초산호〔Sarcandra glabra ( Thunb.) Nakai〕、오약〔Lindera aggregata ( Sims) Kosterm.〕、향계( Cinnamomum subavenium Miq.)、홍남( Machilus thunbergii Sieb. et Zucc.)、련예다〔Camellia cuspidata ( Kochs ) H. J. Veitch〕、첨저〔Castanopsis eyrei ( Champ. ex Benth.) Tutch.〕、구협서자( Itea oblonga Hand.-Mazz.)、홍담비( Cleyera japonica Thunb.)화소협문모수〔Distylium buxifolium ( Hance) Merr.〕협편양분(포괄C、N、P、K、Ca화Mg)함량、단위협면적양분함량화비협면적진행료측정,병분석료비협면적여양분함량화단위협면적양분함량적상관성。결과표명：9충수충협편적C、N、P、K、Ca화Mg함량분별위438.09~492.31、9.79~15.60、0.33~2.06、11.39~32.52、3.84~13.34화2.85~14.05 g·kg-1,단위협면적C、N、P、K、Ca화Mg함량분별위24.48~47.38、0.66~1.03、0.02~0.21、0.73~1.82、0.22~1.35화0.20~1.05 g·m-2,C/N비、C/P비화N/P비분별위31.40~47.88、227.76~1495.66화5.26~32.90。9충수충협편적비협면적평균치위14.5 m2·kg-1,기중초산호적비협면적최대(17.90 m2·kg-1)、소협문모수적비협면적최소(9.89 m2·kg-1)。상관성분석결과표명：공시수충협편적C/P비여N/P비간정겁현저정상관；비협면적여협편N함량정현저정상관,여단위협면적C、N화Ca함량분별정겁현저화현저부상관,여기타지표적상관성균불현저。종합분석결과표명：환남아열대상록활협림하관목층주요수충협편적양분함량급비협면적차이명현,기중,오약、초산호、구협서자화향계협편적양분함량교고,이소협문모수、홍담비화홍남적단위협면적양분함량교고。
Nutrient ( including C, N, P, K, Ca and Mg) content in leaf, nutrient content per unit leaf area and specific leaf area ( SLA ) of main tree species Sarcandra glabra ( Thunb.) Nakai, Lindera aggregata ( Sims ) Kosterm., Cinnamomum subavenium Miq., Machilus thunbergii Sieb. et Zucc., Camellia cuspidata ( Kochs) H. J. Veitch, Castanopsis eyrei ( Champ. ex Benth.) Tutch., Itea oblonga Hand.-Mazz., Cleyera japonica Thunb. and Distylium buxifolium ( Hance) Merr. in shrub layer under subtropical evergreen broad-leaved forest in Southern Anhui were determined, and correlations of SLA with nutrient content and nutrient content per unit leaf area were analyzed. The results show that contents of C, N, P, K, Ca and Mg in leaf of nine tree species are 438. 09-492. 31, 9. 79-15. 60, 0. 33-2. 06, 11. 39-32. 52, 3. 84-13. 34 and 2. 85-14. 05 g·kg-1 , respectively; contents of C, N, P, K, Ca and Mg per unit leaf area are 24 . 48-47 . 38 , 0 . 66-1 . 03 , 0 . 02-0 . 21 , 0 . 73-1 . 82 , 0 . 22-1 . 35 and 0 . 20-1. 05 g·m-2 , respectively;and ratios of C/N, C/P and N/P are 31. 40-47. 88, 227. 76-1 495. 66 and 5. 26-32. 90, respectively. Average SLA of nine tree species is 14. 5 m2 ·kg-1, in which, SLA of Sarcandra glabra is the largest (17. 90 m2·kg-1), that of Distylium buxifolium is the smallest (9. 89 m2 ·kg-1 ). Correlation analysis result shows that there is extremely significantly positive correlation between C/ P ratio and N/ P ratio of leaf of tree species tested, significantly positive correlation between SLA and N content in leaf, and extremely significantly or significantly negative correlations of SLA with C, N and Ca contents per unit leaf area, respectively, while, correlations between SLA and other indexes are not significant. Comprehensive analysis result indicates that there are obvious differences in foliar nutrient content and SLA of main tree species in shrub layer under subtropical evergreen broad-leaved forest in Southern Anhui, in which, nutrient content in leaf of Lindera aggregate, Sarcandra glabra, Itea oblonga and Cinnamomum subavenium are higher, while nutrient content per unit leaf area in leaf of Distylium buxifolium, Cleyera japonica and Machilus thunbergii are higher.
