河北农业大学学报
河北農業大學學報
하북농업대학학보
JOURNAL OF AGRICULTURAL UNIVERSITY OF HEBEI
2010年
2期
13-16,20
,共5页
甘草%群落结构%生物量
甘草%群落結構%生物量
감초%군락결구%생물량
Glycyrrhiza uralensis%community structure%biomass
试验选取甘草不同分布区较少受干扰群落为研究对象,用样线和样方相结合的方法进行群落调查,分析了各甘草分布群落特征和地上生物量特点.结果表明:甘草分布区内,物种数由东向西随着降水量的减少而减少,各群落中物种丰富度指数随着纬度的降低而降低,多样性指数镇赉最高,盐池最低;均匀度指数杭锦旗最高,群落间的相似性系数都小于0.5;杭锦旗甘草群落中甘草占绝对优势,甘草重要值达到0.26;各群落甘草地上生物量差异较大,其中杭锦旗甘草地上生物量最大,占总生物量的90.36%.综合以上研究结果认为,发展甘草培植产业应以杭锦旗周围为最佳区域.
試驗選取甘草不同分佈區較少受榦擾群落為研究對象,用樣線和樣方相結閤的方法進行群落調查,分析瞭各甘草分佈群落特徵和地上生物量特點.結果錶明:甘草分佈區內,物種數由東嚮西隨著降水量的減少而減少,各群落中物種豐富度指數隨著緯度的降低而降低,多樣性指數鎮賚最高,鹽池最低;均勻度指數杭錦旂最高,群落間的相似性繫數都小于0.5;杭錦旂甘草群落中甘草佔絕對優勢,甘草重要值達到0.26;各群落甘草地上生物量差異較大,其中杭錦旂甘草地上生物量最大,佔總生物量的90.36%.綜閤以上研究結果認為,髮展甘草培植產業應以杭錦旂週圍為最佳區域.
시험선취감초불동분포구교소수간우군락위연구대상,용양선화양방상결합적방법진행군락조사,분석료각감초분포군락특정화지상생물량특점.결과표명:감초분포구내,물충수유동향서수착강수량적감소이감소,각군락중물충봉부도지수수착위도적강저이강저,다양성지수진뢰최고,염지최저;균균도지수항금기최고,군락간적상사성계수도소우0.5;항금기감초군락중감초점절대우세,감초중요치체도0.26;각군락감초지상생물량차이교대,기중항금기감초지상생물량최대,점총생물량적90.36%.종합이상연구결과인위,발전감초배식산업응이항금기주위위최가구역.
Using two methods of sample and line transects to conduct community survey on different community in which Glycyrrhize uralensis distributed. Through comparing the community characteristics and ground biomass on different community,the main results are as follows:In G. uralensis distribution,the number of species from east to west is along with a decrease in precipitation decrease;The community of species richness index decreases with decreasing latitude,Diversity index Zhenlai the highest,lowest Yanchi. The highest evenness index is Hangjinqi. The community similarity coefficient between the different community is less than 0.5;The dominant species in the community at Hangjinqi are G. uralensis of which the important value is 0.26. The G. uralensis biomass above ground accounts for 90.36% of the total bilmass at Hangjinqi and is maximum among the 5 areas. It is the best area to cultivate G. uralensis in Hangjinqi.