变废为宝化害为利 乌兰察布市让废弃地重现活力

<正>城镇化和经济的快速发展,一方面使废弃居民点和工矿废弃地日益增加,另一方面也增加了土地供需矛盾。乌兰察布市对废弃居民点和工矿废弃地这些"土地皮肤病"精心手术,强化治理,收到可喜的效果。自治区督察组对该项工作开展情况进行了专项     

珠江三角洲耕地面积减少与经济增长的关系分析

通过对珠江三角洲及广州等７个城市耕地面积变化和经济增长过程的分析,阐述耕地面积变化与经济增长的相关联系;在各城市间表现为３种具体类型：（１）经济增长超前,耕地减少滞后;（２）经济与耕地同步变化;（３）经济增长滞后,耕地减少超前;第一种耕地利用的效益最高,第三种最低。     

Radiative forcing over China due to albedo change caused by land cover change during 1990–2010

Land cover change affects surface radiation budget and energy balance by chang- ing surface albedo and further impacts the regional and global climate. In this article, high spatial and temporal resolution satellite products were used to analyze the driving mechanism for surface albedo change caused by land cover change during 1990-2010. In addition, the annual-scale radiative forcing caused by surface albedo changes in China＇s 50 ecological regions were calculated to reveal the biophysical mechanisms of land cover change affecting climate change at regional scale. Our results showed that the national land cover changes were mainly caused by land reclamation, grassland desertification and urbanization in past 20 years, which were almost induced by anthropogenic activities. Grassland and forest area decreased by 0.60% and 0.11%, respectively. The area of urban and farmland increased by 0.60% and 0.19%, respectively. The mean radiative forcing caused by land cover changes during 1990-2010 was 0.062 W/m2 in China, indicating a warming climate effect. However, spatial heterogeneity of radiative forcing was huge among different ecological regions. Farmland conversing to urban construction land, the main type of land cover change for the urban and suburban agricultural ecological region in Beijing-Tianjin-Tangshan region, caused an albedo reduction by 0.00456 and a maximum positive radiative forcing of 0.863 WIm2, which was presented as warming climate effects. Grassland and forest conversing to farmland, the main type of land cover change for the temperate humid agricultural and wetland ecological region in Sanjiang Plain, caused an albedo increase by 0.00152 and a maximum negative radiative forcing of 0.184 W/m2, implying cooling climate effects.     

中国工农革命军第一军第一师部旧址——留给世人的红色记忆

工农革命军第一军第一师师部旧址坐落于江西省九江市修水县城凤凰山路60号,东临县城凤凰山路,北靠县政府招待所,西接秋收起义修水纪念馆,南抵林氏祠堂。旧址座北朝南,一进二重,砖木结构,小青瓦屋面,四水归内,麻石门框,整个建筑面积350平方米,占地面积1200平方米。是一处清末民国初建筑。     

房地产测绘成果质量检查的实践

在介绍房地产测绘流程的基础上,提出不同类型房屋检查的侧重点,总结出房地产测绘成果质量检查的方法.     

数字地籍测量在国道拓宽中的应用

数字地籍测量在国道拓宽中的应用＠蒋海良￥绍兴市土地管理局数字地籍测量在国道拓宽中的应用蒋海良（绍兴市土地管理局３１２０００）一、拓宽路段踏勘确权定界数字地籍测量的关键是国家、集体、个人对土地使用权和土地面积的认定。它包括了土地权属、界址、位置、数量、用途、...     

面向对象方法在土地定级系统设计中的应用

本文简要介绍了面向对象方法,并对如何利用面向对象方法进行土地定级系统的设计进行了阐述。     

电子地图印刷网点修正模型的建立以及网点修正参数的确定

文中从地图的自动化生产出发 ,针对印刷网点的扩大特征 ,结合地图设计与出版系统 ,提出了链形网点阶调压缩的公式和各色各阶调网点的修正模型 ,并求出了各色各阶调网点的修正参数。     

面积率α幂修正Neugebauer方程

网目调地图彩色印刷颜色再现 ,由于光在油墨和纸张第一表面上的反射和光在油墨和纸张内部的多重反射 ,将产生网点在转移过程中面积率的扩张和亏损。这一效应将破坏原始 Neugebauer方程关于色块三剌激值和网点面积率之间的线性关系。本文作者提出面积率 α幂修正的 Neugebauer方程 ,对于三色和四色印刷过程给出计算结果。