| Aer Desert of Zhangwu country adjoins Kc Zuohouqi of Mongolia, Aer Desert is a part ofthe south the Horqin sandy land. With human over-grazing and not reasonable land use,desertification phenomenon is increasing fierce. Enclosing is management measure ofdesertification due to low cost and easy operation. This study is based on the research ofwhich is enclosed, using restoration ecology, plant ecology and soil science to research plantsreturn effect, soil recovery effect and the ecological restoration comprehensive effect by fieldinvestigation, indoor test and data statistics, et al. The purpose is to reveal the potential ofecological restoration for enclosing.Research proves that vegetation restoration effect is significantly through enclosing, notonly vegetation coverage, the plant height and fresh weight show a rising trend but also plantcommunity succession to happen with the extension of enclosing time. Earlier, the plant isless species and low number, but the plant species has a significant increasing and theundershrub appear high frequency after eight years enclosing. The plant of suitable forsand decrease even disappear. At the same time, the soil physical and chemical propertieshave a effectively mend, and the content of speed is increased in the beginning, then becomelower. Through the correlation analysis, the speed of change is quadric to the equivalentenclosing time, the correlation coefficient is greater than0.90, and the correlation is extremelysignificant. Finally, through the comprehensive evaluation of ecological recovery potential, it isconfirmed that the ecological restoration effect is significantly after enclosing. The result showthat ecological recovery is potential by enclosing. |
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