<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

          We have launched E-mail Alert service,subscribers can receive the latest catalogues free of charge

           
           
          You Are Here: Home > Reports

          Develop Grain Production Bases in Northwest China in Light of the Climate Change from Warm-Dryness towards Warm-Wetness (No.12, 2021)

          2021-03-19

          By Zhang Yunhua & Wu Zhenjun, Research Department of Rural Economy, DRC

          Research Report, No.12, 2021 (Total6077) 2021-1-27

          Abstract: Over the past decades, the temperature and precipitation in north China have improved significantly as the climate becomes warmer and wetter. The trend can promote the development and utilization of arable land reserve in northern regions and improve the output of grain and other crops, bringing unprecedented opportunities for China to increase its grain output. China needs to seize the opportunity of climate change from warm-dryness toward warm-wetness and build grain production bases in northwestern regions to enhance its grain production and supply capabilities. Relevant policy options are raised as follows. 1. We need to focus on developing grain production bases in the five provinces and autonomous regions in the northwest, the central and western regions of Inner Mongolia Autonomous Region and Shanxi province and improve grain production infrastructure in northwest China across the board. 2. We need to improve both the quantity and quality of arable lands in the northwest. 3. We need to increase input in local water conservancy facilities through building large- and medium-sized anti-drought agricultural facilities as well as water diversion and drainage facilities and promoting water-saving irrigation and planting technologies. 4. We need to make study on the development of crops suited to warmer and wetter climate in the northwest and conduct selection of indigenous crops with strong adaptation to local conditions.

          Keywords: climate change toward warm-wetness, grain production bases in northwest China, arable land reserve, grain output increase

           
          主站蜘蛛池模板: 人妻体内射精一区二区三四| 一个添下面两个吃奶把腿扒开| 亚洲精品一二三中文字幕| 热久在线免费观看视频| 婷婷亚洲国产成人精品性色| 日韩av不卡一区二区在线| 囯产精品久久久久久久久久妞妞 | 91精品国产色综合久久不| 国产精品偷伦一区二区 | 最好好看的中文字幕| 日韩乱码视频一区二区三区 | 精品无码国产日韩制服丝袜| 苍井空无码丰满尖叫高潮| 日韩av裸体在线播放| 亚洲红杏AV无码专区首页| 麻麻张开腿让我爽了一夜| 中文字幕一区二区久久综合| 亚洲精品无码AV人在线观看国产| 无码专区 人妻系列 在线| 欧美怡红院视频一区二区三区| 久久精品国产99久久6| 九九视频热最新在线视频| 欧美喷潮最猛视频| 忘忧草在线社区www中国中文| 无码国产精品一区二区免费3P| 国产精品久久毛片| 蜜臀av一区二区三区人妻在线| 特级精品毛片免费观看| 国产极品尤物粉嫩在线观看 | 国内少妇偷人精品免费| 99中文字幕国产精品| 久久精品国产亚洲av高清蜜臀| 人妻另类 专区 欧美 制服| 欧美大胆老熟妇乱子伦视频| 亚洲成a人片在线观看中| 国产69精品久久久久久妇女迅雷| 开心激情站开心激情网六月婷婷| 成人国产片视频在线观看| 国产69久久精品成人看| 精品91在线| 狠狠色婷婷久久综合频道日韩|