半干旱丘陵地区林地在荒漠化中作用及其成因分析研究_以内蒙古四子王旗南部为例.pdfVIP

14 2 Vo l. 14 No . 2 2007 4 Research of So il and Water Co nserv atio n A pr . , 2007* 以内蒙古四子王旗南部为例 1 2 3 4 1 常月明, 赵爱荣, 王心源 , 沙俊英 , 李百岁 1. , 010022; 2. , 24 1000; 3 . ; 4. , 011800) : ; , , , ; , : ; ; : X 171. 1 : A : 2007) 0202800 3 To Study the Action and Cause of the Woodland to Desertification of Semiarid Hill Area A Case Study of A gr opast oral A reas in Inner M ongolia 1 2 3 4 1 CH A N G Y uem ing , ZH A O A irong , WA N G Xiny uan , SH A J uny ing , L I baisui ( 1. Geog r ap hy Sc ience I nstitute in I nner N or mal Univ er sity , H uhhot 0 10022, Ch ina; 2. The 34th M iddle School o H uhhot ; 3. A nh ui N o rmal Univ er sity , W uh u 241000, China; 4. The Exp er iment M iddle School o S iz iw ang qi in I nner Mo ng olia , W ul anhua 0 11800, Ch ina) Abstract: T he w oo dlands, in arid and semi ar id ar eas, play an im po rtant r ole in pr otecting ter rito ry , impr ov ing entironment , main tenancing t he eco system equilibr ium , broadening the mov able space of human , o ptimizing the quality of exist ing env iro nment etc. Especially in ar eas o f ecosystem unbalanced and t he ar eas o f deser tif ication occur ring of the env iro nment had been destructed, the agr iculture shelt er fo rest , w ater and soil co nserv atio n w o od and headw aters selfrestraint w ood w hich had been built ar e ar ti f icial pro tection natur al co ver and framew or k o f