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四川若尔盖试验示范工程
发布时间:2014-9-25 18:15:55  查看次数:1704  字体大小【
 

四川若尔盖试验示范工程 

    四川省阿坝藏族羌族自治州的若尔盖县属于高寒区。

    近二十年来,若尔盖高原区的生态环境日趋恶化,草地退化、沙化、鼠虫危害十分严重。据有关资料显示,仅该区若尔盖县草地退化面积已达700万亩,占可利用草地面积的70%以上,沙化面积达161.5万亩,其中全沙化面积70万亩,潜在沙化面积91.5万亩,并每年以11.8%的惊人速度扩展。

    若尔盖县地处青藏高原东缘末端,若尔盖县属高原丘陵、高山峡谷两种地貌类型,最高海拔4500m,最低海拔2400m,多数在2800~3800m之间。属长江、黄河两大水系。沙化区域多为海拔3400~3600m之间。

    注:草种用量及品种搭配、改良剂配方及用量、建植疏密度及布局应根据实地情况设计确定。“1车”约2吨。

    流动沙丘当年固住,经过三年时间已经形成稳定植被。

 
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