Plant Functional Traits And Ecological Stoichiometry Response To Soil Environment In City Forest In Dalian

Plant functional traits how to respond to environmental factors, we mainly discussedthe change law of plant functional traits including leaf thickness (LT),leaf specificarea(LSA),leaf dry matter content(LDMC),average crown(AC), average height(AH),averagediameter at breast height(ADBH),average coverage(ACV), leaf carbon content (LCC) indifferent succession stages and the internal relation of plant functional traits with circulationof materials including soil nutrient content, plant litter leaf weight and decomposition andunderground food web. Experiments are showed that LDMC ascends in natural communitysuccession Black pine coniferous forest, Black pine-oak mixed forest, Oak hardwood forest,however, declined in half-artificial succession Black-locust mixed forest,Locust hardwoodforest, but the opposite trend displays on LSA and LT;LDMC correlates with soil ammoniumnitrogen negatively, litter decomposition rate(LDR), tropical diversity(TD),the basalindex(BI) and nematode channel ratio(NCR).LDMC positively correlated with soil availablephosphorus. LT positively correlates with dominance (C)and Kwasniewski index (WI).LSApositively correlates with BI and NCR;AC,ADBH and ACC ascende in natural communitysuccession, descend in half-artificial succession, AH descends in natural communitysuccession and ascends in half-artificial succession, AH correlates with soil carbon content; Inthis study negatively, we surround the relationship of plant functional traits with circulationof nutrient in ecosystem to demonstrate the rules of community succession.