The hottest rubber planting expansion threatens bi

2022-08-24
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The expansion of rubber planting threatens biodiversity

driven by economic interests, the existing rubber planting has expanded beyond the tropical planting suitable areas in Indonesia, and even into the continental margin of Southeast Asia. However, this may not be a good thing. On the 24th, it was learned from the Kunming Institute of Botany, Chinese Academy of Sciences that the expansion of existing rubber planting will pose a threat to biodiversity and farmers' livelihoods

this is a joint study by experts from the Key Laboratory of plant diversity and biogeography in East Asia, Chinese Academy of Sciences, the regional office for East and Central Asia of the World Agroforestry Center (ICRAF), the Royal Botanical Garden in Edinburgh, the University of Singapore and the eastern and Western Center. Research shows that more and more environmentally valuable and protected land is being occupied by rubber planting around the world, especially in Southeast Asia and other places. More extensive monitoring plays a vital role in protecting livelihoods and formulating environmental policies

driven by economic interests and the planting expansion of oil palm, a competitor of natural rubber, rubber planting has expanded to areas outside the suitable tropical planting areas in Indonesia. Due to one or more coexisting climatic and environmental disadvantages such as too dry, too steep, too high, too wet, too cold and windy in the edge of Southeast Asia, it is necessary to continuously increase investment in fertilization, pesticides and labor in the process of rubber planting in order to maintain a stable output level. Therefore, although rubber planting can bring corresponding economic benefits to some farmers, not all farmers are beneficiaries

scientists' research shows that climate change will lead to 70% of the current rubber planting areas and 55% of the future planting areas no longer suitable for rubber planting; The livelihood of small farmers will face many threats, such as the price fluctuation of natural rubber, food security and the reduction of income sources. At the same time, due to the market demand for a large number of natural rubber, some valuable and protected land has gradually turned into rubber plantations, which makes the existing · single piece, group experiment consequence calculation, analysis and disposal, a variety of declaration situations, micro output land and ecological environment eroded and destroyed. When a large area of forest is replaced by rubber plantations, the transformation of land use mode, which strives to be the pacesetter of innovation driven development, will significantly reduce carbon reserves, soil productivity, available water resources and biodiversity, which will not only be unsustainable in economic development, but also have a negative impact on the water and soil balance

experts suggest that extensive monitoring of the expansion of rubber planting and economic sustainability will play a crucial role in land use planning and policy intervention; Formulating the corresponding ecological compensation scheme and establishing the certification scheme of "environment-friendly rubber" can reduce the negative impact on the ecological environment caused by the expansion of rubber planting on the basis of ensuring the supply of rubber

this study was published in global environmental change, the international mainstream academic journal of environmental science

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