Lu Zhang-Wei, Wu Ci-Fang, Yue Wen-Ze, Liu Yong, Ren Li-Yan
lnstitute of Land Science and Real Estate, Zhejiang University, Hangzhou 310029, China.
Ying Yong Sheng Tai Xue Bao. 2009 Jul;20(7):1759-64.
By using RS and GIS techniques, the spatiotemporal changes of wetlands in Hangzhou Bay Industrial Belt, one of the most developed zones in Zhejiang Province, from 1990 to 2005 were studied. There was a frequent conversion between the wetlands and other land use types and between the wetlands themselves, mainly manifested in the conversion between wetland and farmland, and from wetland to construction land and from tidal flat to aquiculture area. The comparative advantage of other land use types and the policy of cultivated land's requisition-compensation balance decided the inherent mechanisms of these spatiotemporal changes. Driven by the aquaculture's comparative advantage to traditional agriculture, large areas of inland farmland and of the tidal flat along the coast of Hangzhou Bay were reclaimed into aquiculture area, and the rapid expansion of construction land, limited land resources, and the implement of cultivated land's requisition-compensation balance policy induced the wetlands being occupied.
利用遥感（RS）和地理信息系统（GIS）技术，对浙江省最发达地区之一的杭州湾产业带1990年至2005年湿地的时空变化进行了研究。湿地与其他土地利用类型之间以及湿地自身之间存在频繁转换，主要表现为湿地与农田之间的转换，以及从湿地到建设用地、从潮滩到养殖区的转换。其他土地利用类型的比较优势以及耕地占补平衡政策决定了这些时空变化的内在机制。在水产养殖相对于传统农业的比较优势驱动下，杭州湾沿岸大片内陆农田和潮滩被开垦为养殖区，建设用地的快速扩张、有限的土地资源以及耕地占补平衡政策的实施导致湿地被占用。
