<tt id="6hsgl"><pre id="6hsgl"><pre id="6hsgl"></pre></pre></tt>
          <nav id="6hsgl"><th id="6hsgl"></th></nav>
          国产免费网站看v片元遮挡,一亚洲一区二区中文字幕,波多野结衣一区二区免费视频,天天色综网,久久综合给合久久狠狠狠,男人的天堂av一二三区,午夜福利看片在线观看,亚洲中文字幕在线无码一区二区

          Op-Ed Contributors

          Looking to the land for climate change solutions

          By Alexander Mller (China Daily)
          Updated: 2009-12-16 07:46
          Large Medium Small

          The high alpine grasslands in the heart of Asia have been home to yak and sheep herders for centuries. But they are starting to disappear from much of this vast area. One major reason is overgrazing and depletion of the soil. Some parts of the grasslands are now called the "Black Beach" - a parched moonscape that has had its nutrients sucked out of the earth.

          Largely gone, too, is the land's ability to hold large amounts of carbon. It's no small loss. The depleted grasslands here and around the world, along with degraded farmlands, are an open wound not only because of the loss of productive land but also because they are a lost opportunity to slow and reverse climate change.

          With negotiators in Copenhagen trying to work out a new global climate deal, a key question is whether transforming the use of agricultural land, such as those in the alpine Asian terrain, will be included.

          Related readings:
          Looking to the land for climate change solutions Official warns of soil erosion in infrastructure construction
          Looking to the land for climate change solutions Law to be revised to keep slag, fly ash from farm soil

          Negotiators need to look to farmers - and the use of farmland - for help. There should be no doubt today that climate change, agricultural land and food production are inextricably linked. There is no separating these powerful factors that are elemental to our survival.

          First, let's think about food. The world's population is expected to grow to 9 billion by 2050 - a 50 percent increase. It means we'll need to produce 70 percent more food by then. How do we do that?

          The Food and Agriculture Organization estimates that $210 billion is needed in agricultural investments every year in order to produce the required amount of food. But investments in agricultural practices that promote soil carbon capture can make agriculture part of the solution in the fight against climate change, rather than part of the problem, while increasing production and improving the livelihood of small-scale farmers.

          Now, agriculture is one of the major sources of greenhouse gas emissions producing, according to the Inter-governmental Panel on Climate Change, roughly 12 to 14 percent of all emissions. But healthy soils, like trees, can be great carbon capturers. Farmers and herders need to use new practices - or adapt centuries-old practices - to put more organic matter in the soil, and then keep it there. More organic content holds more carbon; and more carbon in soils boosts agricultural production by creating higher levels of nutrients in plants and retaining greater amounts of water.

          This is where the Copenhagen climate change negotiators need to step in. The question now doesn't involve science - we understand the value of better soils for food production and to capture more carbon. The question in Copenhagen should be how to finance needed innovations in agriculture to unleash these multiple benefits.

          What's needed is a way to create a carbon-financing scheme in which new funding streams are literally put back into the land - funneled into wise agricultural investments to improve farming and agro-forestry practices that increase food production as well as combat climate change.

          Part of the beauty in this is that this change won't take years. This isn't like developing alternative energy sources that require huge infrastructure investments, or installing new technologies to reduce emissions from current energy sources. Instead, this new green agricultural movement can begin right away.

          There are several entry points. One is a massive effort to help farmers and herders build up organic matter in soils. It could mean taking herds of sheep or goats off overgrazed grasslands for several years. It could mean more careful measuring of carbon in soils to determine successes and failures and to decide where to focus efforts. And it could mean that farmers till the soil less and apply more organic fertilizers such as manure and mulch.

          In many of the world's degraded agricultural lands, much has been lost. Now it's time to bring life back to these lands. Not only do we need better soils for food production, but also we need the soils to lock up carbon. Better soils will give life.

          The author is assistant director-general of the Natural Resources Management and Environment Department of the UN's Food and Agriculture Organization.

          (China Daily 12/16/2009 page9)

          主站蜘蛛池模板: 日韩精品中文字幕一线不卡| 开心一区二区三区激情| 极品尤物被啪到呻吟喷水| 国产不卡av一区二区| 狠狠五月深爱婷婷网| 国产v综合v亚洲欧美大天堂| 免费无码观看的AV在线播放| 亚洲精品不卡无码福利在线观看| 亚洲男人在线天堂| 国产精品久久久久久久久软件| 亚洲欧美综合一区二区三区| 老熟妇国产一区二区三区| 无码人妻视频一区二区三区| 成人午夜精品无码一区二区三区| 久久精品无码专区免费青青| 国产日韩精品一区在线不卡| 69精品无人区国产一区| 久久99热只有频精品8| 91产精品无码无套在线 | 国产大陆av一区二区三区| 俄罗斯性孕妇孕交| 日本系列亚洲系列精品| 一本久久a久久精品综合| 少妇又爽又刺激视频| 强开少妇嫩苞又嫩又紧九色| 无遮高潮国产免费观看| 亚洲精品无码永久在线观看| 少妇伦子伦情品无吗| 亚洲国产精品日韩专区av| 婷婷六月综合缴情在线| 国产午夜在线观看视频| 777米奇色狠狠888俺也去乱| 亚洲亚洲网站三级片在线 | 国产精品原创不卡在线| 国产99久久亚洲综合精品西瓜tv| 国产偷国产偷亚洲高清午夜| y1111111少妇无码| 午夜福利偷拍国语对白| 九九热在线免费观看视频| 狠狠精品久久久无码中文字幕| 黄床大片免费30分钟国产精品|