黄土高原沟壑区土地景观空间格局遥感分析

应用遥感图像采集信息，在ＧＩＳ支持下，建立空间信息库，进行嵌块大小、分维数、形状指数、优势度、多样性、相对丰富度、破碎度等指标计算，研究了黄土高原沟壑区淳化县泥河沟流域土地景观空间格局特征。结果表明，本区域景观类型比较简单，景观多样性比较低。建议在本区域特别是在沟缘线上下两侧，打埝修梯，植树造林，建筑成沿沟沿缘线数十米宽的生态廊道和景观网络，增加景观类型，提高景观多样性，进一步控制水土流失，不断改

ANALYSIS OF REMOTE SENSING OF THE SPATIAL PATTERN OF LANDSCAPE ON THE GULLIED IN THE LOESS PLATEAU

Through setting up space date base and computating a series of indexes such as patch size,fractal dimentsion,econgation index,dorninance, diversity,relative richness and fragmentation,on the basis of data collection with remote sensing image and under the support of GIS,the space structure of landscape of Nihegou basin,Chuenhua County on the gullied in the Loess Plateau has been studied. The results show that the landscape types of this area are sample and the diversity is low. In view of this fact,the author suggests that ecological corridor and ladscpqe network of tens meters wide be constructed in this area,along the gully edge particularly,through building banks and teracts and planting trees. Only,so,the landscape types maybe increased,tha diversity be raised,the loss of soil and weter be further controlled and the ecological environment be improved continually.