西北植物学报
西北植物學報
서북식물학보
ACTA BOTANICA BOREALI-OCCIDENTALIA SINICA
2001年
3期
497-506
,共10页
秦岭%太白红杉%群落学特征%区系%物种多样性
秦嶺%太白紅杉%群落學特徵%區繫%物種多樣性
진령%태백홍삼%군락학특정%구계%물충다양성
选择太白红杉群落分布较集中的太白山、长安光头山、玉皇山和冰晶顶等4个地段，设计18个样地，用样方法进行调查，共作样方280个。分析了太白红杉群落的种类组成、区系特点、群落外貌、垂直结构和水平结构等群落学特征，并对该群落的环境概况进行分析，计测了不同地段上群落的频、盖度指标和不同层次上的Shannon-Wiener指数、Simpson指数、Pielou指数和种间相遇指数。结果表明，太白红杉主要分布于秦岭海拔2 800～3 500 m的高海拔山地，群落组成种类约85种，北温带分布属占优势，地面芽植物种类多、数量大，是该群落的优势层片。乔木层为太白红杉单优组成，平均高度约8.6 m；多样性指数0.207～0.420；灌木层H值为1.779～2.363；草本层H值最高，为2.122～3.025。本研究为太白红杉可持续利用和保护提供了有益的参考。
選擇太白紅杉群落分佈較集中的太白山、長安光頭山、玉皇山和冰晶頂等4箇地段，設計18箇樣地，用樣方法進行調查，共作樣方280箇。分析瞭太白紅杉群落的種類組成、區繫特點、群落外貌、垂直結構和水平結構等群落學特徵，併對該群落的環境概況進行分析，計測瞭不同地段上群落的頻、蓋度指標和不同層次上的Shannon-Wiener指數、Simpson指數、Pielou指數和種間相遇指數。結果錶明，太白紅杉主要分佈于秦嶺海拔2 800～3 500 m的高海拔山地，群落組成種類約85種，北溫帶分佈屬佔優勢，地麵芽植物種類多、數量大，是該群落的優勢層片。喬木層為太白紅杉單優組成，平均高度約8.6 m；多樣性指數0.207～0.420；灌木層H值為1.779～2.363；草本層H值最高，為2.122～3.025。本研究為太白紅杉可持續利用和保護提供瞭有益的參攷。
선택태백홍삼군락분포교집중적태백산、장안광두산、옥황산화빙정정등4개지단，설계18개양지，용양방법진행조사，공작양방280개。분석료태백홍삼군락적충류조성、구계특점、군락외모、수직결구화수평결구등군락학특정，병대해군락적배경개황진행분석，계측료불동지단상군락적빈、개도지표화불동층차상적Shannon-Wiener지수、Simpson지수、Pielou지수화충간상우지수。결과표명，태백홍삼주요분포우진령해발2 800～3 500 m적고해발산지，군락조성충류약85충，북온대분포속점우세，지면아식물충류다、수량대，시해군락적우세층편。교목층위태백홍삼단우조성，평균고도약8.6 m；다양성지수0.207～0.420；관목층H치위1.779～2.363；초본층H치최고，위2.122～3.025。본연구위태백홍삼가지속이용화보호제공료유익적삼고。
The distributing centers of Larix chinensis community on Mt Taibai,Mt Guangtou,Mt Yuhuang and Mt Bingjingding were selected as 4 stands and were designed 18 sampling lands.280 plots were investigated by sampling method.Based on the plot data,Larix chinensis community characteristics were analyzed about the specific composition;the flora feature;the community physiognomy;the vertical and level structure;and the regulation of environment.The indexes of the frequency and the coverage and the species diversity (Shannon-Wiener index;Simpson index;Pielou index and Probility of Interspecies Encounter index) were measured in Larix chinenesis community in the sampling stands.The results are as following.The community of Larix chinensis apparently distributed to high-altitude montane at 2 800～3 500 m in Qinling ranges;the specific composition of the community is about 85 species,which the genus of the boreal temperate zone is absolute dominance.The species and quantity of hemicryptophyte were more and larger.There was a striking dominant synusia of L.chinensis in the L.chinensis community,which was a monodominant community.The H index of tree layer was 0.207-0.420,brush layer 1.779,herb layer 2.122～3.025.This discussion aims at scientific sustainable development and conservation of this rare phytobiocenose.
