It is identified that all the 4 methods are applicable to the study of the tropicalgrassland.
所用的4种方法在热带草地的研究中均有一定的适用性。
2
Acre for acre, some sanctuaries-such as those in rainforest, tropicalgrassland or mangrove swamps-offered a lot more species protection per acre than others did.
This tropicalgrassland, however, has been severely destroyed due to the effects of human activities and excessive utilization, which has been rapidly dwindled over the past 40 years.