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针对云南省山地种植措施不合理,水土资源流失严重的现状,进行了甜玉米间作草带和辣椒的水土保持效应研究。结果表明,在降雨集中的6,7,8这3个月,间作处理的径流量比单作处理的径流量平均减少了29.08%,侵蚀量平均减少了52.36%。B处理(甜玉米盖膜+牧草)的总径流量比D处理(辣椒单作)减少了85.05%,B处理的总侵蚀量比C(甜玉米盖膜单作),D处理分别减少了62.58%,63.34%。在极高雨强下,B处理的径流量比D处理减少了75.29%,B处理的侵蚀量比C,D处理的分别减少了81.36%,98.34%。可见,甜玉米间作牧草草带是一种持续利用和保护山地水土资源的有效措施。
In view of the unreasonable planting measures and the serious loss of soil and water resources in mountainous areas in Yunnan Province, soil and water conservation effects of intercropped sweet corn and grass peppers were studied. The results showed that the average runoff of intercropping decreased by 29.08% and the erosion by 52.36% on average in the three months of 6th, 7th and 8th seasons. The total runoff of treatment B (sweet corn covered membrane + pasture) was decreased by 85.05% compared with D treatment (pepper single cropping), and the total erosion amount of treatment B was decreased by 62.58 %, 63.34%. Under extremely high rainfall intensity, the runoff volume of B treatment decreased by 75.29% than that of D treatment, and that of B treatment decreased by 81.36% and 98.34% respectively than that of C and D treatments. It can be seen that the forage grass belt between sweet corn is an effective measure to continuously utilize and protect the mountain water and soil resources.