造林苗木对困难立地的适应能力差，一直是南方石灰岩山地植被恢复的难点问题。觅食是直接决定植物生存和生长的重要行为，觅食行为研究可揭示植物主动应对困难生境的生态适应策略。从植物觅食角度，研究天然林优势种的生态适应机理可望为石灰岩困难立地植被恢复带来突破。江西省瑞昌市5600hm2成片遍布于石灰岩山地的天然淡竹林，是研究石灰岩优势种觅食行为的理想对象。本项目以淡竹为研究对象，从形态可塑性、分株选择性放置和资源共享等觅食行为入手，开展以下研究内容：1）通过大样地调查，分析淡竹与资源的空间分布特征及其关联性，研究淡竹形态可塑性和分株选择性放置的机理；2）通过实地和控制试验，研究淡竹资源共享的重要性和时空规律；3）基于资源空间分布特征，综合分析不同资源状况下觅食行为的权衡选择及困难立地的生态适应对策。研究旨在揭示淡竹如何通过形态和生理上的塑造以适应困难立地的觅食策略，为石灰岩山地植被恢复提供理论指导。

The weak adaptability of afforestation seedling to limestone habitat is the key for vegetation restoration in the south of China. Plant foraging ability directly determines its survival or growth, and the study of foraging behavior is helpful to understand the plant adaptation strategies to difficult habitat, and guide the vegetation restoration and maintenance in difficult sites. From the perspective of ecological adaptation mechanism, the study for foraging behavior of natural dominant species in limestone mountain may bring breakthrough of vegetation restoration..As 5600 hm2 Phyllostachys glauca forest covering all over the limestone mountain in Ruichang city of Jiangxi province, it provides a perfect study object of plant foraging behavior in difficult site. In this study, foraging behaviors including morphological plasticity, selective placement and resource sharing are investigated by large-sample survey and controlling experiment. The main study contents are as follow: 1) analyzing the space distribution pattern of Phyllostachys glauca and resoure, exploring their relationship; 2) detecting the importantance and time-space characteristics of resource sharing; 3) based on the distribution of environmental resource, discerning foraging strategies of Phyllostachys glauca and the ecological adaptation countermeasures for difficult sites. The study is aim to reveal foraging strategies of the dominant species Phyllostachys glauca and provide guidance for vegetation restoration in limestone mountains.