高山草地植物种群生态适应对策系列研究 Ⅲ 天祝高山草地植物种群生态适应对策发生的物质基础

Ecological Adaptability of Plant Populations in Alpine Grassland. Material Basis for Ecological Adaptability of Plant Populations in Tianzhu Grassland

文章通过对甘肃天祝高山草地野外样方不同的肥、水试验、自制的系列微型人工气候箱内不同光照处理试验的植物蛋白质测定分析，讨论了植物生态适应对策发生的物质基础。第一次报道了兼型峰值蛋白质既是高山草地植物种群稳定的基础，也是进一步形成趋中性、趋活性和趋惰性生态适应对策植物的载体。初步定义了趋活性生态适应对策植物的高峰值蛋白质合成多，趋惰性生态适应对策植物低峰值蛋白质合成较多，趋中生态适应对策植物常为兼型峰蛋白质。

The protein content was determined for samples of three plant species collected from Tianzhu alpine grassland. The plant samples included those which had been grown with different fertilizer and irrigation treatments under field conditions, and those grown with controlled levels of light exposure and temperature in miniphytotrones. It is concluded from the analysis that the type of protein with a neutral absorbed peak is the material basis for the stability and the ecological adaptability of plant populations on the alpine grassland. In respect to ecological adaptability of the plants it appears that activotaxis is closely linked to a high content of protein with a high absorbed peak, inertitaxis to a high content of protein of low absorbed peak, while mediotaxis to protein with a neutral peak.