甘肃农业大学学报
甘肅農業大學學報
감숙농업대학학보
JOURNAL OF GANSU AGRICULTURAL UNIVERSITY
2014年
4期
122-126
,共5页
GIS技术%经济林种植%土壤 NPK%空间分析
GIS技術%經濟林種植%土壤 NPK%空間分析
GIS기술%경제림충식%토양 NPK%공간분석
GIS technology%economic forest planting%soil N,P,K%spatial analysis
基于甘肃省天水市麦积区经济林氮磷钾元素调查数据、区划图、经济林分布图等数据,利用3S 技术、克里金插值法、重分类和栅格计算方法,对该区域经济林种植土壤氮磷钾元素进行空间分析研究。结果显示:适宜苹果种植的土壤氮磷钾主要分布在研究区西部和中部区域,西北部分区域其值偏高,东南部地区其值偏低;适宜花椒种植的土壤氮磷钾主要分布在研究区中部和东部边缘,西部区域其值偏高,南部地区其值偏低;适宜葡萄种植的土壤氮磷钾主要分布在研究区中南部地区和西部区域,西部小片区域其值偏高,东部及南部地区其值偏低。麦积区经济林种植土壤氮磷钾施肥没有统一标准,土壤中氮、磷、钾等土壤肥力分布不均衡,应尽快因地制宜的对麦积区经济林栽培进行科学管理和标准规划。
基于甘肅省天水市麥積區經濟林氮燐鉀元素調查數據、區劃圖、經濟林分佈圖等數據,利用3S 技術、剋裏金插值法、重分類和柵格計算方法,對該區域經濟林種植土壤氮燐鉀元素進行空間分析研究。結果顯示:適宜蘋果種植的土壤氮燐鉀主要分佈在研究區西部和中部區域,西北部分區域其值偏高,東南部地區其值偏低;適宜花椒種植的土壤氮燐鉀主要分佈在研究區中部和東部邊緣,西部區域其值偏高,南部地區其值偏低;適宜葡萄種植的土壤氮燐鉀主要分佈在研究區中南部地區和西部區域,西部小片區域其值偏高,東部及南部地區其值偏低。麥積區經濟林種植土壤氮燐鉀施肥沒有統一標準,土壤中氮、燐、鉀等土壤肥力分佈不均衡,應儘快因地製宜的對麥積區經濟林栽培進行科學管理和標準規劃。
기우감숙성천수시맥적구경제림담린갑원소조사수거、구화도、경제림분포도등수거,이용3S 기술、극리금삽치법、중분류화책격계산방법,대해구역경제림충식토양담린갑원소진행공간분석연구。결과현시:괄의평과충식적토양담린갑주요분포재연구구서부화중부구역,서북부분구역기치편고,동남부지구기치편저;괄의화초충식적토양담린갑주요분포재연구구중부화동부변연,서부구역기치편고,남부지구기치편저;괄의포도충식적토양담린갑주요분포재연구구중남부지구화서부구역,서부소편구역기치편고,동부급남부지구기치편저。맥적구경제림충식토양담린갑시비몰유통일표준,토양중담、린、갑등토양비력분포불균형,응진쾌인지제의적대맥적구경제림재배진행과학관리화표준규화。
Economic forest planting has become a pillar industry of Maiji district,Tianshui City,Gansu Province.The spatial analysis of soil N,P,K can provide decision imformation on the efficient use of soil fertility and spatial regions for economic forest planting in Maij i District.Based on the surveyed results data of Maiji District,zoning maps,forest maps and other data,combined with the 3S technology,Kriging,re-classification and raster calculation method,the soil N,P,K factors of economic forest planting in this dis-trict were analyzed.The results showed the suitable soil N,P,K for apple cultivation was mainly distribu-ted in north and central region,which was higher in northwest region and lower in southeastern region.The suitable soil N,P,K for pepper planting was mainly distributed in central and eastern edge,which was higher in western region while lower in southern region.The suitable soil N,P,K for grape growing was mainly distributed in south-central and western small area,which was higher in a small part of north while lower in eastern and southern regions.The nitrogen,phosphorus,potassium and other soil fertility distribu-ted uneven,this indicated that the there was not a uniform standard for fertilization,thus,scientific manage-ment and planning standards for economic forest planting should be carried immediately.