农业科学与技术(英文版)
農業科學與技術(英文版)
농업과학여기술(영문판)
AGRICULTURAL SCIENCE & TECHNOLOGY
2010年
6期
130-133,158
,共5页
徐霞%张勇%李悦%田玉强
徐霞%張勇%李悅%田玉彊
서하%장용%리열%전옥강
中国北方农牧交错带%土地适宜性%评价
中國北方農牧交錯帶%土地適宜性%評價
중국북방농목교착대%토지괄의성%평개
The northern China crop-pasture band%Land Suitability%Evaluation
集合限制因子法和综合指数和法,针对中国北方农牧交错带,建立了该区耕地适宜性评价的指标体系,筛选出评价的主导因子,采用专家打分法和权重法对所有地块的耕地适宜性进行了评价.结果表明,研究区绝大部分区域是不适合于农业耕种,较适宜于农业耕种的区域面积仅占总面积的8.45%,且主要分布于东南和西南2个区域,还有东北部地区,不适宜农业耕种的地区主要分布于东部的中间部位、中部的广泛地区以及西部地区.
集閤限製因子法和綜閤指數和法,針對中國北方農牧交錯帶,建立瞭該區耕地適宜性評價的指標體繫,篩選齣評價的主導因子,採用專傢打分法和權重法對所有地塊的耕地適宜性進行瞭評價.結果錶明,研究區絕大部分區域是不適閤于農業耕種,較適宜于農業耕種的區域麵積僅佔總麵積的8.45%,且主要分佈于東南和西南2箇區域,還有東北部地區,不適宜農業耕種的地區主要分佈于東部的中間部位、中部的廣汎地區以及西部地區.
집합한제인자법화종합지수화법,침대중국북방농목교착대,건립료해구경지괄의성평개적지표체계,사선출평개적주도인자,채용전가타분법화권중법대소유지괴적경지괄의성진행료평개.결과표명,연구구절대부분구역시불괄합우농업경충,교괄의우농업경충적구역면적부점총면적적8.45%,차주요분포우동남화서남2개구역,환유동북부지구,불괄의농업경충적지구주요분포우동부적중간부위、중부적엄범지구이급서부지구.
Basing on the limiting factor method and Composite Index method, for the northern China crop-pasture band, the authors established the system of evaluation index, and abstracted the dominant factor, then through applying expert grade and weighing way the suitability of grids are evaluated, the results showed that: without the input of a large number of cash, most of the area was not suitable for farming, and more appropriate area for farming was only 8.45% of total area, mainly located in the southeast and southwest of the study area, followed by the study area in the northeast, areas that was not suitable for farming mainly in the middle of the east, large areas of central and western regions.