Liu Zhi-min, Ma Jun-ling
Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China.
Ying Yong Sheng Tai Xue Bao. 2008 Jan;19(1):183-90.
The landscape in sand dune areas is characterized by the alternate distribution of sand dune and interdune lowland, and the unique floras in these areas are some endemic or rare plant species. In recent years, the decrease in plant species richness and the disappearance of some endemic or rare plant species in these areas have been received special attention, which were listed in the Program of International Biodiversity Conservation, and studied in many countries and districts. In this paper, the research progress in these fields was summarized from the aspects of significance of plant diversity conservation, formation mechanisms of plant diversity, ways of plant diversity conservation, roles of plant diversity research in the development of ecological theories, and important issues in operating plant diversity conservation project. To conserve plant diversity in sand dune areas, attentions should be paid to the differences in conservation goals (to maintain high species richness or to conserve endemic or rare species) among different regions, and the balances between the stabilization of active sand and the conservation of endemic or rare species, and the maintenance of high species richness and the conservation of endemic or rare species. It needed also to consider the sand dune and the interdune lowland as a unified landscape unit to explore the impacts of disturbances and habitat fragment on plant diversity.
沙丘地区的地貌特征是沙丘和丘间低地交替分布，这些地区独特的植物区系包含一些特有或珍稀植物物种。近年来，这些地区植物物种丰富度的下降以及一些特有或珍稀植物物种的消失受到了特别关注，这些地区被列入国际生物多样性保护计划，并在许多国家和地区进行了研究。本文从植物多样性保护的意义、植物多样性的形成机制、植物多样性的保护方式、植物多样性研究在生态学理论发展中的作用以及实施植物多样性保护项目的重要问题等方面，对这些领域的研究进展进行了综述。为了保护沙丘地区的植物多样性，应注意不同地区在保护目标（维持高物种丰富度或保护特有或珍稀物种）上的差异，以及流动沙地稳定与特有或珍稀物种保护之间、维持高物种丰富度与保护特有或珍稀物种之间的平衡。还需要将沙丘和丘间低地视为一个统一的景观单元，以探讨干扰和生境破碎化对植物多样性的影响。
