帮忙写篇英语作文啦

来源:百度知道 编辑:UC知道 时间:2024/05/28 12:19:39
以沙漠正在蔓延为题写一篇100词左右的短文``
要点:
1.沙化问题日趋严重``
2.沙化问题的成因``
3.解决办法``
谢谢啦``

沙漠化是沙质荒漠化的简称,对其概念的认识和理解不仅是沙漠化研究的主要内容,也是制定有效防沙治沙措施的科学依据.对我国目前流行的几种沙漠化概念作了介绍、评述和综合分析,为使其概念表达简洁,避免一些不必要的争论和便于推广使用,建议应把沙漠化定义中的时间、地点和成因等限定条件全部去掉,认为沙漠化是指"原非沙漠地区出现以风沙活动为主要标志的类似沙漠景观的环境变化以及原系沙漠地区环境条件的强化与扩张过程".并对土地沙漠化等级类型划分的指标体系、空间分布特点和面积做了讨论.
Desertification is the short title of desertification, its awareness and understanding of the concept of desertification is not only the main contents of the study, but also the development of effective anti-desertification measures scientific basis. Of our popular concept of desertification in several presentations, comments and comprehensive analysis, the concept for its succinct expression, to avoid any unnecessary controversy and easy to promote the use of, the proposed definition of desertification should be the time, place and cause of such a qualification removed that desertification is "the original non-desert region activities to wind as the main indicator similar to the desert landscape as well as environmental changes dese