The concept of 'environmental carrying capacity' has long been central to ecological studies, yet its application to human societies remains contentious. While biologists define carrying capacity as the maximum population size an ecosystem can sustain indefinitely, human systems introduce complexities such as technological innovation, trade, and cultural values. A recent study by Zhang et al. (2023) argues that static models of carrying capacity fail to account for adaptive behaviors, suggesting that societies can temporarily exceed ecological limits through resource substitution. However, critics contend that such flexibility undermines long-term sustainability, as it masks cumulative environmental degradation. This debate highlights a fundamental tension between optimistic views of human ingenuity and pessimistic assessments of ecological limits.
❓ According to the passage, what is a key limitation of static models of carrying capacity in human societies?
A. They ignore the role of cultural values in resource management.
B. They do not consider the potential for adaptive behaviors like resource substitution.
C. They overestimate the maximum population size an ecosystem can support.
D. They focus only on technological innovation rather than trade.
✅ 正确答案
They do not consider the potential for adaptive behaviors like resource substitution.
IELTS Reading Tips
Skim the questions first, underline keywords, then locate in the passage
Watch for paraphrasing; correct answers are often reworded
Be wary of absolute statements (all, always, never) — usually wrong
Pay attention to content after transition words (however, but, yet)
Manage time: about 20 minutes per passage; skip difficult questions first