Research on land use optimization for reducing wind erosion in sandy desertified area: a case study of Yuyang County in Mu Us Desert, China
Research on land use optimization for reducing wind erosion in sandy desertified area: a case study of Yuyang County in Mu Us Desert, China
复制标题
DOI：
10.1007/s00477-016-1223-9
复制
发表时间：
2017-08
影响因子：
4.2
通讯作者：
Y. Yue;X. Ye;X. Zou;Jing’ai Wang;Lu Gao
中科院分区：
文献类型：
--
作者：
Y. Yue;X. Ye;X. Zou;Jing’ai Wang;Lu Gao
荒漠化土地在世界范围内分布广泛，对生态环境安全构成巨大威胁，并带来巨大的经济损失。风蚀是干旱、半干旱地区土地荒漠化的重要过程和生态问题，不合理的土地利用是造成土地荒漠化的主要原因之一。因此，优化土地利用是保证桑迪生态环境安全和发展的有效途径。本文选取地处我国北方半干旱桑迪区毛乌素沙漠和农牧交错带的榆阳县作为典型研究区。构建了以防治土壤风蚀为目标的榆林市周边土地利用环境友好规划的原则和方法，提出了榆林市周边“三环”土地利用模式。据预测，到2020年，榆阳县耕地面积将仅占全县总面积的10%左右，基本能够满足人们对粮食和肉类的需求。生态用地、生产用地和生活用地的比例为2.27：12.09：85.64，从而形成一个合理的土地利用系统，保证区域生态安全和社会经济可持续发展。研究结果表明，该研究有助于构建生态安全下的城市土地可持续利用系统，保障城市人居环境安全。
Desertification land occupies vast area of world, which is a big threat to eco-environmental safety and brings huge economic losses. Wind erosion is a key process and ecological problem of land desertification in arid and semi-arid area, where unreasonable land use is one of major causes. Therefore, optimizing land use is a substantially effective approach to eco-environmental safety and development of sandy area. Yuyang County, located in Mu Us Desert of semi-arid sandy area and farming-pastoral zone in North China, was selected as a typical study area. The principles and methods on environmentally friendly land use planning surrounding urban area for combating soil wind erosion were constructed, and a “tri-circle” land use paradigm around Yulin City was worked out. It was predicted that by the year of 2020, farmland will be only 10 percent of total area of Yuyang County, which are able to meet the need of food and meat. The proportion of ecological land, productive land and living land would be 2.27:12.09:85.64, which will lead to a reasonable land use system for ecological security and social-economic sustainable development of the region. It shows that this research will help construct the sustainable land use system under ecological security, and ensure habitat environmental safety in urban area.