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Community Character And Resources Exploiture Value Of Rubus In Emei Mountain

Posted on:2008-08-08Degree:MasterType:Thesis
Country:ChinaCandidate:L XiangFull Text:PDF
GTID:2120360218454356Subject:Silviculture
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China is one of rubus plant extremely rich countries, is only inferior to the NorthAmerica distribution center, both has the massive fine wild fruits and the traditionalChinese medicine resources and has the massive fine garden cover plant and theconservation of water and soil plant resources. Because starts late, our country native placerubus plant resources development use falls behind by far the European and Americanvarious countries.This article as studies the place take Mt. Emei, used the open country investigationunion specimen room inquiry the method to carry on the type, the distribution research tothe Mt. Emei rubus plant. Used the abundance, the uniformity, alpha the multiple indicesand beta the multiple indices has carried on the quantitative analysis to the dewberrycommunity's multiplicity. Used the fuzzy equal cluster law to carry on the cluster analysisto the rubus plant community type. Used returns the method gradually has carried on therelevant analysis to the rubus plant and the soil nutrient content.Used the improvement theanalytic hierarchy process from the for medicinal purposes value, the edible value, thebotanical garden carries on by the value and the conservation of water and soil four aspectsto the Mr. Emei rubus plant's development using the value the appraisal.(1) Indicated after the system resources investigation that, the rubus floristiccomponent is extremely rich in Mt. Emei, altogether has 31 kinds and 7 varieties, there are1Mt. Emei endemic specie, for Ryiwuanus, 2 Sichuan endemic species, for R. yiwuanusand R. faberi.(2) The correlation between abundance and the multiplicity of rubus community andthe elevation and the jamming are remarkable, the jamming is the main factor, the elevationnext best, the slope position influence is not remarkable.The abundance and the a-diversity indices all reduce along with the altitude above sealevel increase. The linggongli down is highest, Jinding is lowest. The communityunitbrmity quite is consistent, Pielou index between 0.7-0.8; Theβ-diversity indices are0.69-0.83.(3) If threshold valueλ=10, the rubus community is divided to 4 ecology class Byfuzzy equal cluster law. First kind: Evergreen broad-leaved forest, including Hongchunping, Jingshui,Wuxiangang, Linggongli upon, Linggongli down. This type mainly distributes in the Altitude500-1500m, Purple Soil and mountain yellow soil, the community is also most complex, therubus and associated plants are richest. The main spaces of rubus are R. ichangensis, R.setchuenensis, R, lambertianus Var. glaber, R, ellipticus Var. obcordatus, and so on.Second kind: Deciduous broad-leaved forest including Yuxiansi and Xixiangchi. thistype mainly distributes in the elevation 1500-2200m, yellow brown soil, the spacesdistributed is litter than evergreen broad-leaved forest.The main spaces of rubus areR. faberi, R. subinopertus, and so on.Third kind: Mixed coniferous and broadleaf forest, including Leidongping andShuangshuijin, this type mainly distributes in the elevation 2000-2500m, Yellow BrownSoil, the rubus Species are fewer, include R. pinnatisepalus, R. malifolius, and so on.Fourth kind: Sub-alpine coniferous forest, including Jinding, this type mainlydistributes above elevation 2500m, Sub-alpine Coniferous Forest Soil, the rubus species arefewest, the mainlycommunity which is quite unitary, include R. pileatus and R. innominatus.(4) The Organic matter, Available N, Available P, Available K has the very bigdifference in different community, T-test Indicated that the value of Organic matter (t=0.393<t0.05(6) 2.447), available N (t=0.889<t0.05(6) 2.447), available K(t=1.305<t0.05(6) 2.447) are not remarkable between east slope and west slope, but the available P isremarkable (t=2.57>t0.05(6) 2.447).The relevant analysis between 9 advantage and frequency higher kind ofrubus speciesand the soil nutrient indicated that: The R.ichangensis (r=-0.6564*) and R.lambertianusVar. glabe had a remarkable inverse correlation with available K, it showed that they areable to normal grow on the low Available K soil; the R. faberi had a remarkable positivecorrelation with available P, showed that the R. faberi mainly distributes on rich available Psoil. R, setchuenensis, R. niveus, R. subinopertu, R. malifolius, R. pileatus, R. pileatus andR. pinnatisepalus to the soi The Organic matter, Available N, Available P and Available Krelevance is not all remarkable, indicates these kind of rubus plant's to scatter to not specialrequest of the soil nutrient element.(5) The result of improvement analytic hierarchy process analysis indicated that: there is only one species named R. coreanus with big value for medicinal purpose. TheR. coreanus was used for medicinal purposes,instade R. chingii from ancient times tonow, the resources were rich and broadly distributed, suggested used.There are 3 species with big value for fruit. The R. lambertianus Var. glaber is goodspecies for jiagong, R. corchorifolius and R. eustepHanus is good for beginning summerseason fresh fruit, because of good outward appearance,bright red color and uniqueflavor.There are 2 species with big value for garden cover. The R. Buergeri may be used forgarden cover plant under forest in city,the R. ichangensis may be used for clinging gardenplant in city.There are 4 species with big value for conservation of water and soil. TheR. lambertianus Var. glaber had broad compatibility and big growth quantity, also the fruithad extremely processing value, The R. setchuenensis and R. multibracteatus both hadextremely developed root system, big growth quantity,broad compatibility. TheR. ichangensis main broade distributed under the parse forest, with tree matching, bepossible to Impediment the direct washout by rain to the ground.
Keywords/Search Tags:Emei mountain, Rubus, Resources, Community, Fuzzy equivalence clustering, Improvement analytic hierarchy process(AHP)
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