农业资源与环境学报
農業資源與環境學報
농업자원여배경학보
Journal of Agricultural Resources and Environment
2013年
6期
74-78
,共5页
李文刚%李晋陵%牛俊杰%阎永康
李文剛%李晉陵%牛俊傑%閻永康
리문강%리진릉%우준걸%염영강
DEM%太谷县%农业%集水区%水环境%划分
DEM%太穀縣%農業%集水區%水環境%劃分
DEM%태곡현%농업%집수구%수배경%화분
DEM%Taigu County%agriculture%watershed%water environment%compartmentalization
采用D8算法的典型方法,使用ArcGIS对DEM进行一系列数据分析,对太谷县水环境地域划分进行了研究。首先科学判断并纠正DEM数据,其次计算无洼地水流流向、汇流累积量,再次提取河网和分析特征。结果得出了太谷县29类集水区,并划分了7类农业水环境地域分布区:高集水区、较高集水区、一般集水区、较低集水区、低集水区、空集水区、非集水区,进而可划分出太谷县五大特色农业地域布局。
採用D8算法的典型方法,使用ArcGIS對DEM進行一繫列數據分析,對太穀縣水環境地域劃分進行瞭研究。首先科學判斷併糾正DEM數據,其次計算無窪地水流流嚮、彙流纍積量,再次提取河網和分析特徵。結果得齣瞭太穀縣29類集水區,併劃分瞭7類農業水環境地域分佈區:高集水區、較高集水區、一般集水區、較低集水區、低集水區、空集水區、非集水區,進而可劃分齣太穀縣五大特色農業地域佈跼。
채용D8산법적전형방법,사용ArcGIS대DEM진행일계렬수거분석,대태곡현수배경지역화분진행료연구。수선과학판단병규정DEM수거,기차계산무와지수류류향、회류루적량,재차제취하망화분석특정。결과득출료태곡현29류집수구,병화분료7류농업수배경지역분포구:고집수구、교고집수구、일반집수구、교저집수구、저집수구、공집수구、비집수구,진이가화분출태곡현오대특색농업지역포국。
The research about compartmentalization of agricultural water in Taigu County was based on DEM by analyzing with ArcGIS, and typical algorithm named D8 was used. Firstly DEM was corrected through scientific judgment, secondly flow direction and flow accumulation were calculated, finally stream net was extracted and analyzed. In result, catchments in Taigu including 29 levels were compartmentalized, consequently 7 levels about agricultural water environment in relation to the level of stream net were defined respectively that are the high, the higher, the general, the lower, the low, the null, and the unexisted watersheds. And further 5 geographical kinds of typical farm produce were laid out.