[1]张明忠,何光熊,方海东,等.元谋干热河谷优势乡土草群落水土保持效益研究[J].水土保持研究,2017,24(02):101-104.
　ZHANG Mingzhong,HE Guangxiong,FANG Haidong,et al.Effects of Dominant Native Grasses Constructed Communities on Soil and Water Conservation in Dry-Hot Valley of Yuanmou[J].Research of Soil and Water Conservation,2017,24(02):101-104.
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元谋干热河谷优势乡土草群落水土保持效益研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 24 期数: 2017年02期 页码: 101-104 栏目: 出版日期: 2017-04-28
Title:
Effects of Dominant Native Grasses Constructed Communities on Soil and Water Conservation in Dry-Hot Valley of Yuanmou
作者:
张明忠1, 何光熊1, 方海东1, 熊东红2, 冉林3, 张宝军2, 史亮涛1
1. 云南省农业科学院 热区生态农业研究所, 云南 元谋 651300;
2. 中国科学院水利部成都山地灾害与环境研究所, 成都 610041;
3. 云南省元谋县水土保持办公室委员会, 云南 元谋 651300
Author(s):
ZHANG Mingzhong1, HE Guangxiong1, FANG Haidong1, XIONG Donghong2, RAN Lin3, ZHANG Baojun2, SHI Liangtao1
1. Institute of Tropical Eco-Agricultural sciences, Yunnan Academy of Agriculture Sciences, Yuanmou, Yunnan 651300, China;
2. Institute of Mountain Hazards and Environment, China Academy of Sciences and Ministry of Water Resources, Chengdu 610041, China;
3. Soil and Water Conservation Office Committee of Yuanmou county, Yuanmou, Yunnan 651300, China
关键词:
干热河谷; 乡土草; 侵蚀模数; 径流量; 水土保持
Keywords:
dry-hot valley; native grass; soil erosion modulus; runoff generation; soil and water conservation
分类号:
S157.2
摘要:
通过在金沙江元谋干热河谷不同坡度径流小区内人工构建优势乡土草群落，研究了自然降雨对不同坡度径流小区产流量和泥沙量的影响。结果表明：不同径流小区产流量和土壤侵蚀模数与降雨量呈正相关，与植被盖度呈负相关；种植处理与对照CK差异显著，且小区坡度越大越显著；降雨利用率随坡度增加而减少，而且乡土草植被群落盖度越大小区降雨利用率越高。通过构建乡土草群落能有效地降低水土流失，增加降雨利用率，且随着坡度增大，水土流失治理效果越明显。
Abstract:
Dominant native grasses were assembled for constructing communities in different slope runoff monitoring sites, and their effects and efficiencies on water and soil loss were examined under Yuanmou dry-hot valley conditions. The observation results from 2013 to 2015 showed that runoff generations and soil erosion modulus were positively correlated with rainfall(p < 0.05); soil and water losses were significantly different between constructed native grasses community sites and CK sites, runoff generations and soil erosion modulus increased with the rise of slope gradients across all communities and CK sites; in contract, water utilization efficiencies of constructed native grass communities reduced with the increase of site slope gradients, and rose with increase of community coverage. The above results suggested that planted native grass communities significantly reduced water and soil loss and improved the reutilization of rainfall, and the reduction of soil and water loss was more obvious with the increase of slope gradient, which reveled that it could be more efficient when those communities were built in steep sloping lands in hilly.

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备注/Memo

收稿日期:2016-06-22;改回日期:2016-07-01。
基金项目:中国科学院“西部之光”重点项目（Y4R2060060）
作者简介:张明忠(1976-),男,云南元谋人,副研究员,主要从事热区生态环境与草地农业研究。E-Mail:ymzmz2002_621@sina.com
通讯作者:史亮涛(1978-),男,云南剑川人,副研究员,主要从事热区生态环境与草地生态研究。E-mail:ynymrjsslt@sina.com

更新日期/Last Update: 1900-01-01