当前国际草田耕作面临的威胁及采取对策
发布时间：2018-09-18 22:10
【摘要】：草田是人类和动物等的食物资源和栖息环境,具有涵养水源、保护生态多样性、减缓气候变化和维持地区可持续发展等作用。目前气候变化、人口增加、水资源和能源资源短缺等对国际草田资源带来严重威胁。为了提高土地生产力,养活不断增加的人口,近几十年大部分国家将半自然状态草地转变农耕地,农耕地管理引起动生物多样性降低和植物群落栖息环境碎片化、退化和消失等。如果国际草田实施粮草轮作、粮草畜协同发展、科学放牧和饲养管理、粮草同等种植优惠政策等,不仅可以提高土地生产力,而且有利于保护生态环境和人类生存可持续发展。
[Abstract]:Grass fields are food resources and habitats for human beings and animals, which have the functions of conserving water, protecting ecological diversity, mitigating climate change and maintaining regional sustainable development. Climate change, population growth and shortage of water and energy resources pose a serious threat to international grassland resources. In order to increase land productivity and feed a growing population, in recent decades most countries have transformed semi-natural grassland into agricultural land, which has resulted in the reduction of animal biodiversity and fragmentation of the habitat of plant communities. Degeneration and disappearance, etc. If the international grass field implements the rotation of grain and grass, the coordinated development of grain, grass and animal, the scientific grazing and management, and the preferential policy of equal planting of grain and grass, it can not only improve the land productivity, but also help to protect the ecological environment and the survival and sustainable development of human beings.
【作者单位】： 甘肃农业大学草业学院;
【基金】：国家牧草产业技术体系项目(CARS-35)资助
【分类号】：S812
，
本文编号：2249225
[Abstract]:Grass fields are food resources and habitats for human beings and animals, which have the functions of conserving water, protecting ecological diversity, mitigating climate change and maintaining regional sustainable development. Climate change, population growth and shortage of water and energy resources pose a serious threat to international grassland resources. In order to increase land productivity and feed a growing population, in recent decades most countries have transformed semi-natural grassland into agricultural land, which has resulted in the reduction of animal biodiversity and fragmentation of the habitat of plant communities. Degeneration and disappearance, etc. If the international grass field implements the rotation of grain and grass, the coordinated development of grain, grass and animal, the scientific grazing and management, and the preferential policy of equal planting of grain and grass, it can not only improve the land productivity, but also help to protect the ecological environment and the survival and sustainable development of human beings.
【作者单位】： 甘肃农业大学草业学院;
【基金】：国家牧草产业技术体系项目(CARS-35)资助
【分类号】：S812
，
本文编号：2249225
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