无叶假木贼繁殖特性与生态适应对策

无叶假木贼是盐土荒漠主要植物之一，主要分布在高温高盐的生境，与其他荒漠物种的生态位重叠低，对维护山前洪积扇平原的水土安全具有非常重要的作用。本研究采用野外调查观测与室内模拟实验相结合的方法，重点研究无叶假木贼种群繁殖特性及其对荒漠环境的适应对策。从群体、个体、花序和单花四个水平观测夏季高温期开花物候；观测传粉全历程、花粉活力、柱头可授性等，分析开花和传粉特性及其对荒漠环境的适应性。对种子结实格局和散布的时空动态、传播距离、散布生境等进行观测，分析微地形、植株和枯落物等因素对种子扩散的影响。测定融雪环境的温度、土壤含水量、含盐量等，分析环境与种子萌发的耦合关系，探索无叶假木贼独特的生殖适应对策，为保护和维护该种群的稳定性提供切实可行的科学途径，具有重要的科学意义和应用前景。

Anabasis aphylla is one of main plant in the solonchak desert area, which distributed in high temperature and high salinity habitat. It have important role on maintaining water-soil safety of diluvial fan plain. Through method of combining field investigation and observation with simulation experiment, reproductive characteristic and adaptive strategies are studied. Flowering phenology is observed at the population, individual, inflorescence and single flower levels in high temperature. Pollination course, pollen viability, stigma receptivity et al is observed, in order to analyse features of flowering and pollination and adaptability under desert environment. Through investigating fruit-set patterns, spatiotemporal dynamics, propagation distance and dispersed habitat, impact on seed dispersal to microrelief, plant and litter are analysised. Measuring soil temperature, soil moisture content and soil salt content, relationship of environment and seed germinate is explained. This project explore especial reproduction adaptive strategies of Anabasis aphylla, be aimed at provide practicable approach to protect and maintain population stability.