山西省水土流失年度消长情况分析评价  

Analysis and Evaluation of Annual Growth and Decline of Soil and Water Loss in Shanxi Province

作　　者：徐少华 Xu Shaohua(Shanxi provincial water conservancy development center,Taiyuan,Shanxi 030002,China)

机构地区：[1]山西省水利发展中心,山西太原030002

出　　处：《山西水土保持科技》2022年第4期42-45,共4页Soil and Water Conservation Science and Technology in Shanxi

摘　　要：山西省境内土壤纬度地带性明显。恒山以北的晋北高寒地区发育草原栗钙土;在忻定、太原、晋中、临汾、运城、晋东南盆地、吕梁山以东的广大地区,则分布发育程度不同的褐土及以山地褐土为主的土壤;境内南部土壤发育较完全,形成很好的粘化层,中北部土壤则发育较差,粘化过程微弱;吕梁山以西第四纪黄土呈厚层连续分布,以东呈断续分布状态。文章在分析山西省水土流失现状、成因及危害等土地利用数据基础上,对2019年典型县土地利用特征进行了分析,结果表明,在国家大幅度增加治理投入的情况下,山西年度水土流失面积下降幅度能够达到预测的年均增长速度。The zonality of soil latitude in Shanxi Province is obvious.Grassland chestnut soil develops in the alpine region of northern Shanxi,north of Mount Heng;In Xinding,Taiyuan,Jinzhong,Linfen,Yuncheng,southeastern Shanxi basins,and the vast area east of Luliang Mountain,cinnamon soil with different development degrees and mountainous cinnamon soil are distributed;The soil in the south of China is well developed,forming a good cohesive layer,while the soil in the north-central part is poorly developed,and the cohesive process is weak.The Quaternary loess in the west of Luliang Mountain is distributed continuously in thick layers and intermittently in the east.Based on the analysis of the present situation,causes and hazards of soil erosion in Shanxi Province,this paper analyzes the land use characteristics of typical counties in 2019.The results show that the annual decrease of soil erosion area in Shanxi can reach the predicted annual growth rate under the condition that the state greatly increases the control investment.

关 键 词：水土保持 土壤地质 土地利用系数 

分 类 号：S157[农业科学—土壤学]