_天然草原等级评定技术规范_.pdfVIP

3/ 200 8 ( 25 3 ) 107 Introduction and cultivation of lawn cover plants planted in heavy alkalisalinity soil in Ekenhudouge town of Inner Mongolia WA N G Qi, Y A O Ze ( Gansu Key Labora ory of Deser if ica io n Comba ing, Gansu Deser Con rol Research Ins i u e, Wuw ei 733000 , China) Abstract: T rials w ere co nduc ed in Ekenhuduge ow n o f A lashan Y o u co un y of Inner Mong olia, F ine sand and hor oug hly decom posed sheep manur e w ere applied o n he sulphuricsalini y soil o impr ove he soil. herbaceou s plan s , such as I ris ensata, M ed icag o sat iv a , and Fest uc a el at a e c. w ere plan ed. Research on he compar ison of heir adap abili y reveals : w i hin he 60 cm deep soil layer, sal con en and p H value of he soil w hich is mixed w i h fine sand ( he ra io be w een original soil and f ine sand is 2 1) are obviou sly low er han ha of he non rea m en soil ( P 0. 05) , w hile he o rganic ma er is higher; here is no o bviou s dif f erence be w een he so il rea ed w i h horoughly decomposed 3 2 sheep m anure ( 0. 01 m / m ) and he non rea men ( P 0. 05) so il. T he perfo rmance of in roduced plan s grow n in he soil mix ed w i h f ine sands ( P 0. 05) are m uch be er han ha in he soil applied w i h horo ug hly decom posed sheep manure and non rea m en soil; her e s no obvious diff er ence in plan s perfo rmance be w een he soil rea ed w i h horoughly deco mpo sed sheep manure and no n r ea men soil ( P 0. 05) . So i can be concluded ha apply ing f ine sand in he so il is an ef fec ive measure o improv e soil, and i s eff ec is significan . Sal s r