有哪些信誉好的足球投注网站- 1、本文档共4页，可阅读全部内容。
- 2、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。
- 3、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击 这里二次下载。
- 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
查看更多
用于大比例尺土壤调查的侵蚀分级指标研究-水土保持研究
13 3 Vo l. 13 No . 3
200 6 6 Research of So il and Water Co nserv atio n J un . , 2006
) ) ) 以辽宁西部低山丘陵区为例
王秋兵, 韩春兰, 丁玉荣, 贾树海, 黄 毅, 唐耀先
( , 110 16 1)
, , ,
, ,
,
, ,
; ; ; ;
S 157 A 1005- 3409( 2006) 03- 0111- 04
Study on the Soil Erosion Criteri on Used for Large Scale Soil Investigation
) ) ) A Case Study in L ow M iddle M ountain an d H ill
A r ea of Wester n P art of L iaon ing P r ovince
WA N G Q iu- bing, H A N Chun- lan , D IN G Y u- rong, J IA Shu- hai, H U A N G Y i, T A N G Y ao- x ian
( L and and E nv ir onment Colleg e of Sheny ang A g r ic ul tur al Un iv er sity , Sheny ang 110 16 1, China)
Abstract:U p to now t he research in the diff erentiation cr iterion o f soil erosio n su ited f or larg e- scale soil investig ation w as seldo m
car ried out in China. T he cur rent diff erentiat ion cr iter ion o f soil erosion degr ee w as diff icultly used in pr act ice and could not eff i-
ciently g uide land u se. Based on the f ield investig atio n r esult s, three typ es o f soil p arent m at erial s, w hich w er e t he dom inant f ac-
to rs o f cau sing v ariat ion of soil qu ality and soil ero sion ch aracter istics in low mount ain and hill ar ea o f w estern pa rt of L iaoning
Pr ovince, w er e classif ied. A diff erentiatio n cr iter ion sy stem of soil erosion su ited f o r lar ge- scale so il inv est igat ion in the ar ea w as
established , accor ding to the diff er ent typ es o f soil par ent m aterials . T he diff erentiat ion cr iter ion sy stem of so il er osion estab-
文档评论（0）