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- Desertified land information 沙化土地信息
- During the Eighth Five-Year Plan period 3.759 million hectares of desertified land were tackled in a comprehensive way. “八五”期间，防治沙漠化工程完成综合治理面积达375.;9万公顷。
- Desertified land area of 2.6362 million square kilometers, accounting for land area of 27.46 percent, more than the total area of arable land. 沙漠化土地面积为263万6200平方公里，占国土面积的27.;46%25，超过全国耕地总面积。
- There are nearly 170 million hectares of desertified land nationwide, accounting for 18.2 percent of the country's total land area, and desertification has affected 400 million Chinese people. 全国沙漠化土地面积近1.;7亿公顷，占国土面积的18
- Desertification and soil erosion have exacerbated as a result of scarce forest vegetation. Desertified land now covers 160 million hectares, accounting for 18.2 percent of the country's total land area and affecting 400 million people. 由于森林植被稀少，沙漠化和水土流失加剧，全国沙漠化土地达1.;6亿公顷，占国土面积的18
- Based on field investigation, the main types and distribution characteristics of desertified land, and the natural and socio-economic factors for the formation of desertification in Ecuador are introduced and analyzed. 根据实地考察，介绍并分析了厄瓜多尔荒漠化的环境背景，荒漠化土地的主要类型、分布特点，荒漠化形成的自然因素和社会经济原因。
- Desertified land area in the country has reached 2.62 million square kilometer while still shows a trend of further expansion. The land area affected by soil erosion has topped 3.67 million square kilometer and continues to expand. 全国荒漠化面积达262.;2万平方公里，并呈扩大的趋势，全国水土流失面积达367万平方公里;也在进一步扩大。
- Desertified land in the territory are mainly located in the Qaidam Basin, the Republican Basin, the area around Qinghai Lake, and the Hoh Xil area of the Yellow River, Yangtze River source. 境内荒漠化土地主要分布在柴达木盆地、共和盆地、环青海湖地区、可可西里地区和黄河、长江源头。
- Land information bears the characteristics of comprehensive, sharable and dynamic. 土地信息具有综合性、共享性、动态性等特点。
- Land Information System (LIS) is the computer information system with land resources arid assets management as working objects. 摘要土地信息系统是以土地资源与资产管理为工作对象的计算机信息系统。
- Abstract: Data on the Land Information System (LIS) is critical, the quality of the data is only as good land information system is the key to success. 摘要：数据对土地信息系统(LIS)来说是至关重要的，数据质量的好坏是土地信息系统建设成败的关键。
- Land Information NZ, “A Proposal for Geodetic Datum Development,” OSG Technical Report 2.1., New Zealand, pp. 1-47, 1998. 李瑞清、邬守中，“九二一灾区国家基本控制点之重建”，测量工程，第四十二卷，第四期，第85-100页，2000。
- Land desertification is the most serious eco-environmental problem in China,especially in the northwest region,which enlarges the area of desertified lands and intensifies sandstorms. 土地沙化是我国特别是西北地区当前最为严重的生态环境问题,不断加剧的沙尘暴与沙化土地的扩张更使生态环境问题雪上加霜。
- controlled degree of desertified land 治理程度
- Vectorization of cadastral map is one of the main data sources of constructing land information system.It is important to improve the efficiency of vectorization. 摘要地籍图矢量化是建立土地信息系统的主要数据来源，提高矢量化的效率有重要的意义。
- The system brings desertification land information into spatial environment and make it more direct to view, more imaginal and more convenient to analysis. 该系统将沙化土地信息纳入其所在空间环境当中,使其更加直观、形象,便于应用分析,同时为沙化土地监测和规划提供一个辅助决策手段。
- Compared with the conventional spatio-temporal data model, this data model has some advantages in managing, querying and deducing spatio-temporal land information. 与传统的时空数据模型，数据模型有一定的优势，管理，查询和推导时空土地信息。
- By 2007, the desertifying lands will be under control. 2007年基本完成潜在沙化土地的治理；
- This paper introduces the background, technical infrastructure, data content and data sharing mechanism of the Land Information Ontario (LIO) and puts forward its implications to Land and Resources Informatization in China. 本文介绍了安大略土地信息计划(LIO)的背景、技术构架、数据内容和数据共享机制,并提出了LIO对我国国土资源信息化建设的若干启示。
- Such as the standard of land use classification has differs greatly in present situation, the land information is distempered, capital farmland has not related to the land block yet. 然而，随着社会经济持续发展和工业化、城镇化步伐加快，全国土地资源利用状况又有了很大变化，而且地籍工作还存在一些问题。
