生态学杂志2011，Vol.30Issue(8)：1813-1821,9.
植物密度调控及其对环境变化响应的研究进展
Research advances in plant density-dependent regulation and its responses to environmental change
摘要
Abstract
To study the plant density-dependent regulation pattern is of significance to the development of plant ecology and to give guidance to the rational density in forestry, agriculture, animal husbandry, and restoration of degraded ecosystems. This paper reviewed the recent researches on the -3/2 and -1/2 self-thinning rules, the instability and dispute of self-thinning exponent, and the relationships between self-thinning rules and density regulation exponent, summarized the responses of density regulation exponent to environmental changes such as water gradient , salt concentration , altitude, and light condition , and discussed the positive and negative interactions among individual plants and the relationships of plant density regulation mechanisms in ecological field with plant morphology, coverage and environmental changes. The study of selfthinning exponent had experienced invariable, variable, and change with environment. The future research trend of plant density-dependent regulation pattern was proposed from the aspects of WBE ( West, Brown and Enquist) model and metabolic ecological theory ( MET) , plant neighbor effect, belowground and aboveground integration, thizospheric microbial regulation to plant interaction, and combination of macro and micro levels.关键词
密度调控指数/自疏法则/环境/盖度密度异速关系/生态场Key words
density regulation exponent/ self-thinning rule/ environment/ allometric scaling of coverage-density/ ecological field.分类
农业科技引用本文复制引用
杨元武,王根轩,李希来,周华坤..植物密度调控及其对环境变化响应的研究进展[J].生态学杂志,2011,30(8):1813-1821,9.基金项目
国家重点基础研究发展计划项目(2009CB421102-04)、国家自然科学基金重点项目(30730020)和青海大学中青年科研基金项目(2009-QN-07)资助. （2009CB421102-04）
