中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 不同治理措施在红壤坡耕地的水土保持效益 水土保持通报 2012,32 (6) 196-200
Position: Home > Articles > Soil and Water Conservation Benefits of Different Measures on Red Soil Sloping Farmland Bulletin of Soil and Water Conservation 2012,32 (6) 196-200

不同治理措施在红壤坡耕地的水土保持效益

作  者：
李秋芳;王克勤;王帅兵;李太兴;李宝荣
单  位：
云南省玉溪市水利局;西南林业大学环境科学与工程学院
关键词：
土壤侵蚀;等高反坡阶;草带;坡耕地;抚仙湖
摘  要：
在云南省抚仙湖流域澄江尖山河小流域坡耕地建立了野外标准径流小区,并布设了1.2m宽等高反坡阶和2.0m宽草带两种坡耕地水土保持措施,观测次降雨的地表径流量和土壤流失量,并与原状坡耕地进行对比,分析两种措施的水土保持效益。结果表明:(1)两种措施之间的地表径流量和土壤流失量差异性均显著。修筑等高反坡阶的地表径流深为113.64mm,比原状坡耕地减少了61.9%,土壤流失量为714.7t/km2,比原状坡耕地减少了77.4%;布设草带的地表径流深为82.76mm,比原状坡耕地减少了72.2%,土壤流失量为370.1t/km2,比原状坡耕地减少了88.3%。(2)两种措施之间的减流和减沙效益差异性均显著,等高反坡阶的减流和减沙效益指数平均分别达0.57和0.97,草带的减流和减沙效益指数平均分别达0.79和0.76。(3)两种措施均大幅削减了地表径流和泥沙的氮、磷养分输出总量,发挥了较好的保肥作用。与原状坡耕地相比,等高反坡阶对总氮削减率为81.9%,对总磷削减率为44.3%;草带对总氮削减率为74.7%,对总磷削减率为83.7%。
译  名：
Soil and Water Conservation Benefits of Different Measures on Red Soil Sloping Farmland
作  者：
LI Qiu-fang1,WANG Ke-qin1,WANG Shuai-bing1,LI Tai-xing2,LI Bao-rong2(1.Faculty of Environment Science and Engineering,Southwest Forestry University,Kunming, Yunnan 650224,China;2.Hydrological Bureau of Yuxi Municipality,Yuxi,Yunnan 653100,China)
关键词：
soil erosion;reverse-slope level terrace;grass verges;sloping farmland;Fuxian Lake
摘  要：
Standard runoff plots were built in Jianshan small watershed of Fuxian Lake watershed in Chengjiang County,Yunnan Province.In addition to the control,two types of soil and water conservation measures were set up on the sloping farmland,i.e.,reverse-sloped terraces with 1.2 m interval and grass strips with 2.0 m interval.Surface runoff and sediment yields were monitored after each rain events to compare the water and soil conservation effects of these two measures.It was shown by the study that both surface runoff and sediment yields differed significantly between the two measures.The runoff depth for the reverse-sloped terrace was 113.64 mm during the year,which was 61.9% less than that of the control,while the observed soil loss was 714.7 t/km2,approximately 77.4% less than the control.For the grass strip treatment,the runoff depth was 82.76 mm,72.2% less than the control,whereas the soil loss was 370.1 t/km2,88.3% less than that of the control.Apparently,both measures showed significant benefits in reductions of both surface runoff and soil loss.The average index values of runoff and soil loss reduction were 0.57 and 0.97 for constructing reverse-sloped terrace,and were 0.79 and 0.76 for building grass belts,respectively.The total N and P losses in surface runoff and sediment were also reduced remarkably,by 81.9% and 44.3% for reverse-sloped terrace,and by 74.7% and 83.7% for grass belts,respectively.

相似文章

导出引用
计量
文章访问数: 12
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46