PDF(Pubmed)
Abstract：
Field ridges are commonly viewed as the stable semi-natural habitats for maintaining plant diversity in the agricultural landscape. The high plant diversity could further support higher animal diversity. But following the adoption of well-facilitated farmland construction measures in China, many field ridges have been disproportionately neglected or destroyed. Empirical studies delineating the relationships between plant and animal diversity in these field ridges in the paddy landscape remain scant, especially in China, which has the most rice production. A two-year field ridge evaluation was conducted in the Chengdu Plain area, covering 30 paddy landscapes. This investigation scrutinizes the shape attributes of field ridges, their plant diversity, and the associated animal α-diversity and community compositions, including spiders, carabids, birds, frogs, and rice planthoppers. In the results of Pearson\'s correlation analysis, a significant inconsistent correlation was observed between plant diversity and animal diversity. The analysis of community structure heterogeneity also revealed no correspondence for species composition between plant and animal communities (i.e., spiders, carabids, and birds), while the non-metric multidimensional scale analysis indicated a substantial difference in the species composition of spiders or plants even within the same field ridge between 2020 and 2021. We argue that the implementation of intensive management practices in paddy landscapes, such as machine ploughing and harvesting and herbicide spraying with drones, leads to a scarcity of stable animal and plant communities in field ridges. Therefore, besides retaining these field ridges in paddy landscapes, maintaining the long-term stable ridges by refraining from herbicide spraying or artificial weeding, as well as avoiding winter wheat cultivating in field ridges, will contribute to protecting biodiversity of field ridges as semi-natural habitats.
摘要：
田间山脊通常被视为维持农业景观中植物多样性的稳定半自然栖息地。高植物多样性可以进一步支持更高的动物多样性。但是随着中国采取了便利的农田建设措施，许多野外山脊被不成比例地忽视或摧毁。描述稻田景观中这些田地中动植物多样性之间关系的实证研究仍然很少，尤其是在中国,稻米产量最高。在成都平原地区进行了为期两年的田岭评价,覆盖30个稻田景观。这项调查仔细检查了野外山脊的形状属性，它们的植物多样性，以及相关的动物α-多样性和群落组成，包括蜘蛛,海盗,鸟,青蛙,还有稻飞虱.在Pearson的相关分析结果中，在植物多样性和动物多样性之间观察到显着的不一致的相关性。对群落结构异质性的分析还表明，动植物群落之间的物种组成没有对应关系（即，蜘蛛,海盗,和鸟），而非度量多维尺度分析表明，在2020年至2021年之间，即使在同一田地山脊内，蜘蛛或植物的物种组成也存在很大差异。我们认为，在稻田景观中实施集约化管理实践，例如机器耕作和收获以及用无人机喷洒除草剂，导致田间山脊中缺乏稳定的动植物群落。因此,除了在稻田景观中保留这些田地，通过避免喷洒除草剂或人工除草来维持长期稳定的山脊，以及避免在田地里种植冬小麦，将有助于保护作为半自然栖息地的田间山脊的生物多样性。
