Font Size: a A A

Research Of Dynamic Monitoring For Land Resources Based On '4D' Techniques

Posted on:2001-06-18Degree:MasterType:Thesis
Country:ChinaCandidate:T C MaFull Text:PDF
GTID:2156360002450315Subject:Agricultural Economics and Management
Abstract/Summary:PDF Full Text Request
Land is a vitally substantial foundation which human depends on for survival, the finitude and continuable development stratagem of land resource require us to establish an efficient, perfect system of dynamic monitoring for land resources, which fleetly, accurately provides the all information related to land resources and canensure the use for government decision-making. In monitoring system, adopting which technique method and means of dynamic monitoring decides the benefit, efficiency and development of this system. The ?D? technique based on ?S?technique integration provides scientific and effective technique method and means. In this paper, the conception, characteristic and developing status of GIS, GPS and RS (namely 3S? are expounded and analyzed, the applied circumstance of the technique in dynamic monitoring for land resources is briefly introduced; the conception, characteristic and product technique crux of DEM, DOM, DRG, DLG (namely 4D? are expounded and analyzed, the applied field of the technique is discussed; the technique scheme of remote dynamic monitoring for land resources based on 4D?technique is studied and advanced, the realization method of crucial technique is indicated; a practical application scheme is designed ?the technique scheme of remote dynamic monitoring for Heilongjiang sanjiang plain land resources; judged by the theoretical analysis and situation of our country, the implement of technique scheme is fully viable, valid. In the paper, the extensive application foreground of ?D?production and technique in dynamic monitoring for land resources is expounded by different points of view, thereby it is indicated that 4D?technique is an effective method and means for settling the question of dynamic monitoring for land resources, has applied and popularizing value.
Keywords/Search Tags:Land resources 3S, 4D, Dynamic monitoring
PDF Full Text Request
Related items