www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

Global General

Climate change to affect fruits, nuts

By Shaun Tandon (China Daily)
Updated: 2011-05-30 07:54
Large Medium Small

WASHINGTON - Climate change is expected to alter the global fruits and nuts industry dramatically as crops such as pistachios and cherries struggle amid rising temperatures, researchers said.

A study said that even if polluters took greater action to cut carbon emissions, the effect of climate change will likely be severe enough that the nearly $100 billion-a-year industry will need to reassess planning.

The study, published in May by the online journal PLoS One, expected fruit and nut trees to be highly affected in California, the southeastern United States, China's southwestern Yunnan province and southern and southwestern Australia.

Areas that have already seen the worst losses from winter chill include Israel, Morocco, Tunisia and the Cape region of South Africa, the study said.

Co-author Eike Luedeling of the Nairobi-based World Agroforestry Centre said that farmers making long-term investments needed to realize quickly that fruits and nuts are more vulnerable than many other crops.

"If I'm growing wheat or maize, then from one year to the next I can decide whether to plant a little late or plant a little earlier or plant a different variety," Luedeling said.

"But for trees, you can't. Once you've made a decision to plant a certain crop, you're locked in for 30 years," he said.

Luedeling, who observed the problem of declining yields while researching trees in Oman, said that the economic effect of climate change on fruits and nuts would depend on decisions being made now.

"If farmers wake up to the reality of climate change and start making these adjustments - switching to cultivars that are appropriate in the future, but not necessary now yet - then the disruption to markets could be minimal," he said. "But if we don't, if farmers believe they can keep doing what their grandfathers have done, then we will see some serious problems."

Climate change is forecast to have less effect on cooler temperate regions and the winter chill may actually increase in some colder regions, the study found.

Co-author Evan Girvetz, a senior climate scientist at The Nature Conservancy, a US environmental group, said cooler regions had a greater window for rising temperatures as they started out with more days of winter chill.

However, many warmer areas are "already on that edge of not having enough cold temperatures during the winter for good fruit and nut production," Girvetz said. "They have years when you don't have enough full production and as we move into the future, we are finding that that's going to become more common."

Even if the world cuts down on greenhouse gas emissions, "we are still projecting that the suitability for growing these crops is likely to decrease," he said.

Agence France-Presse

分享按鈕
主站蜘蛛池模板: 国产v综合v亚洲欧美大另类 | 91精品国产综合成人 | 久久成人小视频 | 国产欧美日韩综合精品一区二区 | 久久综合久久久 | 亚洲色色色图 | 办公室紧身裙丝袜av在线 | 国产91一区二这在线播放 | 男人v天堂 | 亚洲精品久久九九精品 | 久久免费视频在线观看 | 在线播放精品 | 久久精品久久精品 | 国产欧美日韩精品一区二区三区 | 6080伦理久久亚洲精品 | 国产一区视频在线播放 | 成人黄网18免费观看的网站 | 国内自拍第100页 | 欧美视频三级 | 国产综合精品久久亚洲 | 免费a级毛片大学生免费观看 | 91久久精品国产91久久性色也 | 国产欧美日韩精品第三区 | 男人在线网址 | 色偷偷亚洲精品一区 | 国产一区二区三区欧美 | 久草在线中文最新视频 | 日本一级毛片片在线播放 | 黄色不卡视频 | 亚洲国产网站 | 欧美 日韩 国产 在线 | 国产亚洲午夜精品a一区二区 | 91精品国产综合久久欧美 | 美女视频一区二区三区在线 | 成人一a毛片免费视频 | 在线一区免费视频播放 | 99久久精品免费看国产一区二区 | 久久99精品视频在线在线观看 | 亚洲国产精品一区二区久久 | 自拍视频网 | 国产91成人精品亚洲精品 |