Rubber Boom, Land Use Change and the Implications for Carbon Balances in Xishuangbanna, Southwest China
Rubber Boom, Land Use Change and the Implications for Carbon Balances in Xishuangbanna, Southwest China
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DOI：
10.1016/j.ecolecon.2018.09.009
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发表时间：
2019-02
影响因子：
7
通讯作者：
S. Min;Jikun Huang;H. Waibel;Xueqing Yang;Xueqing Yang;G. Cadisch
中科院分区：
文献类型：
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作者：
S. Min;Jikun Huang;H. Waibel;Xueqing Yang;Xueqing Yang;G. Cadisch
中国西南部湄公河上游地区西双版纳的橡胶种植扩张导致了土地利用的深刻变化，并导致当地环境严重退化。本研究探讨了橡胶繁荣导致的土地利用变化的动态，研究了影响农民橡胶种植土地分配异质性的因素，并评估了这种变化对当地环境在碳平衡方面的影响。该分析使用了西双版纳 612 名小农橡胶农的综合家庭调查数据集。历史数据说明了过去三十年橡胶扩张和土地利用变化的轨迹。橡胶种植的小农土地分配模型表明，其决定因素包括种族、橡胶种植经验、家庭财富、海拔以及村庄层面的几个解释变量。由于橡胶种植园的扩张，总体碳储量出现净损失。过去三十年来，西双版纳自然保护区外小农的橡胶种植扩张导致每年约 21 毫克/公顷的碳损失。这些发现补充了关于西双版纳和湄公河地区其他橡胶种植区橡胶土地利用系统的未来及其可持续性的讨论。
Rubber farming expansion in Xishuangbanna, in the Upper Mekong region of Southwest China, has resulted in profound land use change and led to the severe degradation of the local environment. This study explores the dynamics of land use change as a result of the rubber boom, examines the factors influencing the heterogeneity in farmers' land allocations for rubber farming, and assesses the implications of this change for the local environment in terms of carbon balances. The analyses use a comprehensive household survey data set of 612 smallholder rubber farmers in Xishuangbanna. The historical data illustrate the trajectory of rubber expansion and land use change over the past three decades. The model of smallholder land allocation for rubber farming suggests its determinants include ethnicity, experience in rubber farming, household wealth, elevation, and several explanatory variables at the village level. A net loss in carbon stocks at the aggregate level was found due to the expansion of rubber plantations. The rubber farming expansion of smallholders outside the natural reserves in Xishuangbanna has led to a carbon loss of approximately 21 Mg/ha/year over the past three decades. The findings complement discussions on the future of the rubber-based land use system and its sustainability in Xishuangbanna and other rubber-growing areas in the Mekong region.