The Value of the Worlds Ecosystem Services and Natural Capital by Costanza in 1997 is generally regarded as a monument f......

"The value of the worlds ecosystem services and natural capital"by R.Costanza et al.in 1997 is generally regarded as a m......

阿里地区狮泉河谷、日喀则江当河谷阶地和安多错那湖东侧是西藏自治区沙漠化土地分布比较集中的3个典型区,并代表了西藏高原3个不......