15,650
次編輯
變更
無編輯摘要
据林业部门介绍，[[河北]]坝上地区百万亩防护林因树龄超过生理期、连年干旱、地下水超采等，已经大面积干枯死去。如不及时采取措施更新改造，百万亩杨树防护林在不远的将来会不复存在，不仅坝上地区800万亩牧场、良田面临沙化侵蚀的危险，而且由此带来的沙尘也威胁着距离坝上地区仅200多公里的京津两市。
{| class="wikitable" align="right"
|-
| style="background: #FF2400" align= center| '''<big>三北防护林</big>'''
|-
|<center><img src=https://gimg2.baidu.com/image_search/src=http%3A%2F%2Fx0.ifengimg.com%2Fucms%2F2022_02%2F3A3096301DBE40036DBE1D81096B496091C957BA_size1039_w1600_h1062.jpg&refer=http%3A%2F%2Fx0.ifengimg.com&app=2002&size=f9999,10000&q=a80&n=0&g=0n&fmt=auto?sec=1669345209&t=78c609f745cd1a81e59073e4af80e069 width="300"></center>
<small>[https://image.baidu.com/search/detail?ct=503316480&z=0&ipn=d&word=%E4%B8%89%E5%8C%97%E9%98%B2%E6%8A%A4%E6%9E%97&step_word=&hs=0&pn=86&spn=0&di=7146857200093233153&pi=0&rn=1&tn=baiduimagedetail&is=0%2C0&istype=0&ie=utf-8&oe=utf-8&in=&cl=2&lm=-1&st=undefined&cs=4256869660%2C1745540984&os=2316009441%2C2369314384&simid=4256869660%2C1745540984&adpicid=0&lpn=0&ln=1130&fr=&fmq=1666752947950_R&fm=&ic=undefined&s=undefined&hd=undefined&latest=undefined©right=undefined&se=&sme=&tab=0&width=undefined&height=undefined&face=undefined&ist=&jit=&cg=&bdtype=0&oriquery=&objurl=https%3A%2F%2Fgimg2.baidu.com%2Fimage_search%2Fsrc%3Dhttp%3A%2F%2Fx0.ifengimg.com%2Fucms%2F2022_02%2F3A3096301DBE40036DBE1D81096B496091C957BA_size1039_w1600_h1062.jpg%26refer%3Dhttp%3A%2F%2Fx0.ifengimg.com%26app%3D2002%26size%3Df9999%2C10000%26q%3Da80%26n%3D0%26g%3D0n%26fmt%3Dauto%3Fsec%3D1669345209%26t%3D78c609f745cd1a81e59073e4af80e069&fromurl=ippr_z2C%24qAzdH3FAzdH3F2f_z%26e3Btujg2_z%26e3Bv54AzdH3FvAzdH3FbCWQ1rmWTNd&gsm=3c0000000000003c&rpstart=0&rpnum=0&islist=&querylist=&nojc=undefined&dyTabStr=MCwzLDIsMSw3LDQsNiw1LDgsOQ%3D%3D 来自 呢图网 的图片]</small>
|-
| style="background: #FF2400" align= center| '''<big></big>'''
|-
| align= light|
|}
==双碳意义==