Climate, crops, and forests: a pan-tropical analysis of household income generation

Climate, crops, and forests: a pan-tropical analysis of household income generation
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气候、农作物和森林:家庭创收的泛热带分析

DOI:
10.1017/s1355770x18000116
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发表时间:
2018
影响因子:
2.1
通讯作者:
Angelsen
Angelsen
中科院分区:
经济学4区
文献类型:
--
作者:
Wunder;Frederik;Angelsen

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发展中国家的农村家庭依赖农作物、森林开采和其他收入来源维持生计,但这些生计贡献对气候变化很敏感。结合热带地区约8,000个小农家庭的社会经济数据和网格化的降水和温度数据,我们发现,在21°C的温度和2,000毫米的降水量下,家庭的作物收入最高。在这一农业最大值的两侧,森林收入都有所增加。我们进一步发现,有迹象表明,作物收入下降,以应对天气冲击,而森林收入增加,这表明家庭可能科普通过重新分配投入从农业到森林。因此,森林生产可能比作物生产对气候波动不那么敏感,在极端气候和气候异常的情况下具有相对优势。这表明,管理良好的森林可能有助于贫困农村家庭科普和适应未来的气候变化。
Rural households in developing countries depend on crops, forest extraction and other income sources for their livelihoods, but these livelihood contributions are sensitive to climate change. Combining socioeconomic data from about 8,000 smallholder households across the tropics with gridded precipitation and temperature data, we find that households have the highest crop income at 21°C temperature and 2,000 mm precipitation. Forest incomes increase on both sides of this agricultural maximum. We further find indications that crop income declines in response to weather shocks while forest income increases, suggesting that households may cope by reallocating inputs from agriculture to forests. Forest production may thus be less sensitive than crop production to climatic fluctuations, gaining comparative advantage in extreme climates and under weather anomalies. This suggests that well-managed forests might help poor rural households to cope with and adapt to future climate change.
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