摘要
通过自然降雨条件下的径流小区试验,研究了水稻编织物在坡耕地红壤水土流失控制上的作用.结果表明:稻草编织物覆盖能有效地减少水土流失,稻草编织物覆盖的小区径流量为697.67 m3,侵蚀量为6.44 t/hm2,而无覆盖的小区产生径流量为1 728.19 m3,侵蚀量为111.98 t/hm2,径流量是覆盖处理的2.48倍,侵蚀量是覆盖处理的17倍.降雨因子与径流量及侵蚀量的关系研究表明:雨强越大,径流量就越大;雨强大也导致侵蚀量增加;侵蚀量不仅与径流量有关,还与人类活动相关.
The experiment of runoff plot under the condition of natural rainfall was conducted to study the roles of natural fiber textiles made of rice straw and palm in soil water loss control in slope arable field red soil.The research results were as followed： effective reduction of soil water loss,697.67 m3 runoff and 6.44 t/hm2 erosion in the covered plot;in contrast,1728.19 m3 runoff and 111.98 t/hm2 erosion in non-covered area;almost 2.48 times of the runoff and 17 times of the erosion of mulch covered area.Besides,the relation between rainfall factors and the amount of the runoff erosion revealed that the stronger rainfall the bigger runoff and erosion.In addition,the erosion amount was related not only to the runoff amount but also to human activities.
出处
《林业调查规划》
2010年第4期46-49,共4页
Forest Inventory and Planning
基金
云南农业大学与英国
比利时
泰国等国家欧美合作项目(INCO-CT-2005-510745)
关键词
稻草编织物覆盖
水土流失
坡耕地红壤
径流量
侵蚀量
rice straw mat mulch
soil and water loss
slope arable red soil
runoff amount
erosion amount
