更新 renew; replace; renovate; update; renewal; angenesis; restoration; regeneration; kainogenesis; turnover 设备更新 renewal of equipment; 产品更新换代 replace the older generations of products by new ones; 更新知识 renew one's knowledge; 万象更新。 everything takes on a new look
The results showed that the capability of reaumuria soongorica in seed actual reproduction and artificial restoration was positively correlated with disturbance levels ; the capability of restoration varied with the characteristics of disturbance factors , of which water was the key factor 结果表明,红砂种子更新恢复能力与干扰水准呈正相关;干扰因数的特徵不同,则更新恢复能力不同;尤其水分因数参与对红砂种群的自然更新与人工辅助恢复起著关键性的作用。
The mechanism about seed actual reproduction and artificial restoration under disturbance was investigated by using systematic sampling in the typical area of reaumuria soongorica population at mid - young age in desert grassland region , according to two similar habitate involved five different disturbance characteristics 摘要2003年7 10月,选择黄土丘陵区荒漠草原地带两个相似生境、 5个不同干扰特徵的中幼龄红砂种群更新恢复类型区为研究物件,采用系统取样法或样行法,开展了干扰条件下的红砂种群种子更新与恢复机理的初步研究。