摘要
通过野外调查、航片解译和农户调查 ,应用地理信息系统 ,对不同时期 ( 1 95 5、1 977、1 984、1 993)亚热带江汉平原农业景观格局变化以及与社会经济变革和农作系统多样性的相互关系、不同类型景观单元的生物多样性 ,进行了案例研究。指出 ,景观格局变化受大尺度因素和小尺度因素相互作用影响 ;庭院中树篱和林地以及农田边界可能是保持生物多样性最重要的景观单元 ,稳定这些景观单元可能是景观生态及农作系统持续性管理最重的组成部分。
The study was approached based on field investigations,different series of airphoto interpretation and household surveys.Landscape pattern depends on land use changes which were resulted from interactions between large scale and small scale factors.The diversity among households and farming system makes the landscape more heterogeneous.Field margins and hedgerows and woodlots of home gardens are less disturbed elements of the landscape.They are also very diverse structures and may be key elements to conserving biodiversity and agricultural sustainability.
出处
《资源科学》
CSSCI
CSCD
北大核心
2000年第2期19-23,共5页
Resources Science
基金
国家自然科学基金!( 3 95 0 0 0 2 5 )的资助
