草原克隆植物对光、温、水、肥和牧压变化梯度的响应  

Responses of grassland herbaceous clonal species to light, temperature,water,fertilizers and grazing presure gradients

作　　者：付京晶[1,2] 周华坤[1] 赵新全[1] 陈哲[1,2] 温军 姚步青[1] 杨元武[4] 金艳霞[1,2] 

机构地区：[1]中国科学院西北高原生物研究所,青海西宁810008 [2]中国科学院研究生院,北京100049 [3]青海省水利水电科学研究所,青海西宁810006 [4]青海大学农牧学院草业科学系,青海西宁810016

出　　处：《草业科学》2013年第4期616-626,共11页Pratacultural Science

基　　金：国家重点基础研究发展计划(973计划)课题(2009CB421102);国家自然科学基金项目(41030105;31172247);国家科技支撑课题专题(2009BAC61B02-01;2011BAC09B06-02);中科院战略性先导科技专项子课题(XDA05070202)

摘　　要：光、温、水、肥和牧压变化梯度对草本克隆植物影响的研究涉及全球变化、可持续发展、生物入侵等诸多生态学前沿领域,草本克隆植物响应这些生态因子变化的研究对克隆群落生态学研究具有重要意义。具有典型代表性的草本克隆植物(例如匍匐茎型和根茎型草本克隆植物)对这五大因子在同质和异质性资源斑块环境下的响应表现出特有的适应行为和方式,可用基株风险分摊、表型可塑性、觅食行为、克隆整合、克隆分工以及适合度来表征。本研究着眼于草本克隆植物对光、温、水、肥和牧压变化梯度的响应变化,分析和总结了国内外近些年来的研究案例,并对克隆植物的表型可塑性、克隆整合以及克隆分工等热点内容进行了讨论。同时,联系草地植物克隆生态学学科前沿,提出了本领域在未来需要重视的研究方向。Responses of clonal herbaceous species to temperature,light,water,fertilizers and grazing pressure gradients are great significant for researchs of the clone community ecology.The effects of these ecological factors on clonal herbaceous species are popular research subjects in this fields,such as global change,sustainable development,biological invasions,etc.The responses of typical representative herbaceous clonal plants（such as stoloniferous and rhizomatous clonal plants） to these five factors in the environment with homogeneous and heterogeneous resource patches showed unique adaptive behaviour and manner,including risk-spreading strategy of genets,phenotypic plasticity,the foraging behaviour,clonal integration,clonal division and fitness.This paper analyzed and summarized domestic and international cases of clonal herbaceous plants in response to light,temperature,water,fertilizer and grazing gradients in recent years.Several current subjects were also discussed such as phenotypic plasticity,clonal integration,and clone division.

关 键 词：环境因子变化 表型可塑性 克隆整合 觅食行为 克隆分工 

分 类 号：S812[农业科学—草业科学]