摘要
重庆地区的山地茶园 ,在坡地等高种植的情况下 ,土壤年均侵蚀量在 3198～ 2 7186 kg/ hm2之间 ,随着坡度的增大 ,土壤侵蚀愈为严重 ,二者呈显著正相关 ;提高茶园土壤覆盖度可显著降低其水土流失量 ;梯型种植再辅以复合种植 ,是减少茶园中水土流失的最佳模式 ,其 5～ 2 5°的茶园土壤年均侵蚀量在 96 4 .5～ 2 6 13kg/ hm2之间 。
Under the condition of the same height planting,the annual average amount of soil erosion ranges from 3 198 to (27 189 kg/hm^2 )in hilly tea farm of Chongqing.With the rising of slope,the soil loss is more serious.Raising the rate of ground cover could reduce the amount of water and soil loss greatly;ladder-shaped planting with compound way was the best model reducing water and soil loss.In this way ,the annual average amount of soil erosion in tea farm,a slope from 5°to 25°,ranges from 964.5 to 2 613 kg/hm^2.It was lower than erosion standard significantly.
出处
《水土保持研究》
CSCD
2004年第3期252-254,共3页
Research of Soil and Water Conservation
基金
重庆市科委攻关项目"山地茶园水土流失综合控制技术研究"(0 2 -72 81)
关键词
茶园
种植
水土保持
tea farm
planting
soil and water conservation
