天气预报 > 其他 > 为什么仙人掌会长刺
为什么仙人掌会长刺
更新时间: 2020-07-03 00:00:00  

因为仙人掌生长于严酷的干旱环境中,仙人掌的刺是为了适应严酷气候的保护机制的产物,它从根本上减少了植株的蒸腾面,节省了大量的水分消耗,大大提高了仙人掌在严重缺水的地区中的生存能力。而且也能够反射强烈的光照,起到降低体表温度的作用,同时也大大减少了水分的流失,能够使得植株体内贮存大量的水分。

关键词: 为什么 仙人掌 会长

为什么仙人掌会长刺相关经验

天气预报

最新推荐

页面:/news/view-1365551/ | 耗时:0.0786 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=1365551 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1365551 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1365551 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(130489,127058,1372281,116527,127868,110565,130174,117059,110311,111636,109142,117038,107963,120709,124871,128905,120931,1098434,129678,2093661,1096527,1083265,501744,2208169,109478,130110,1868317,112771,117036,2099827) ORDER BY field (ArticleID,130489,127058,1372281,116527,127868,110565,130174,117059,110311,111636,109142,117038,107963,120709,124871,128905,120931,1098434,129678,2093661,1096527,1083265,501744,2208169,109478,130110,1868317,112771,117036,2099827)