鄂西亚高山泥炭地有壳变形虫生态监测及对水位的指示意义  

Ecological Monitoring and Environmental Significance of Testate Amoebae in Subalpine Peatlands in West Hubei Province,China

作　　者：秦养民[1,2,3] 巩静 顾延生[2,3] 薛建涛[1,2] 向成玉 吴未华 葛继稳[2,3] Qin Yangmin;Gong Jing;Gu Yansheng;Xue Jiantao;Xiang Chenyu;Wu Weihua;Ge Jiwen(School of Earth Sciences,China University of Geosciences,Wuhan 430074,China;State Key Laboratory of Biogeology and Environmental Geology,China University of Geoseiences,Wuhan 430074,China;Hubei Key Laboratory of Wetland Evolution and Ecological Restoration,School of Environmental Studies,China University of Geosciences,Wuhan 430074,China;Administration of Erxianyan Wetland Reserve of Hubei Province,Enshi 445000,China)

机构地区：[1]中国地质大学地球科学学院,湖北武汉430074 [2]中国地质大学生物地质与环境地质国家重点实验室,湖北武汉430074 [3]中国地质大学环境学院湖北省湿地生态与环境恢复重点实验室,湖北武汉430074 [4]湖北省二仙岩湿地自然保护区管理局,湖北恩施445000

出　　处：《地球科学》2018年第11期4036-4045,共10页Earth Science

基　　金：国家自然科学基金项目(Nos.41502167;41330103;41572153)

摘　　要：开展湿地的生态监测研究是理解当今气候变化背景下湿地的生态响应、动态演化和生态服务功能变化的有效途径,也是湿地保护、科学管理、合理规划和生态恢复的内在需求.以我国鄂西地区广泛分布的典型亚高山泥炭湿地为研究地点,以在湿地中大量生活且对环境变化敏感的环境指示生物——有壳变形虫为研究对象,采用了一种较新的泥炭湿地水位长期定点监测方法——"PVC印迹法"监测湿地水位的长期变化,调查了有壳变形虫的生物多样性、群落组合特征及其与水位等主要环境因子的响应关系,共记录到有壳变形虫27种和类群(type),隶属14个属.对有壳变形虫的群落组成与环境因子的关系排序分析显示,泥炭湿地的水位是有壳变形虫群落组成的主控环境因子,构建了有壳变形虫属种与水位的转换函数,该函数具有较好的预测和推导能力(R2=0.62),为该地区泥炭湿地的古水位重建提供了现代过程的数据支持.Ecological monitoring is a key way to understand the processes and dynamics of the response, evolution and function of peatlands in the changing climate, and an internal need for protection, management and ecological restoration of wetlands ecosystem. Testate amoebae are a group of unicellular protists widely distributed in nearly all kinds of habitats, especially in Sphagnum peatlands, which have been widely used as environmental indicators for paleoecological change. PVC （discoloration of polyvinyl chloride） tape was used to monitoring the water level in peatland. Here, investigateld the diversity and abundance of testate amoebae in the subalpine peatlands of West Hubei Province were investigateld. A total of 27 species belonging to 14 genera were identified. The ordination by Redundancy analysis （RDA） implies that the moisture/hydrological conditions （indicated by depth to wa-ter table, DWT） are the controlling factors of the testate amoeba community composition. A testate amoebae-based hydrological transfer function is developed, which can be used for the Holocene hydrological reconstruction in peatlands of the region.

关 键 词：有壳变形虫 泥炭地 监测 水位 转换函数 鄂西 

分 类 号：P641.6[天文地球—地质矿产勘探]