红壤坡地不同人工林水土保持规律

被引:3
作者
丁军
王兆骞
陈欣
机构
[1] 平顶山学院
[2] 浙江大学生命科学学院
[3] 浙江大学生命科学学院 河南平顶山
[4] 浙江杭州
基金
国家自然科学基金重点项目;
关键词
水土保持林; 林冠层郁闭度; 蓄水能力; 土壤侵蚀模数;
D O I
暂无
中图分类号
S714.7 [森林水土保持];
学科分类号
082802 ; 090707 ; 0910 ;
摘要
通过对小流域人工水土保持林建成及其水土保持效果的研究,结果表明在6月前自然生长马尾松区和幼杉区的冠层郁闭度明显高于白桃-桃形李区、角竹-板栗-枇杷-青枣区和胡柚-雷竹-特早桔区,6月后各区林冠层郁闭度相差不大;随树龄的增加,径流量、径流深度、悬移质、推移质、土壤侵蚀模数减小,土壤侵蚀模数与降雨量的相关系数最高,其次是径流深度,在与植被林分特征参数间的关系中与总盖度相关系数最大,而与其他林分相关系数偏小;各林区0~10cm和10~20cm土层的蓄水能力,在6月、7月、8月和9月的变化趋势一致,并且10~20cm土层蓄水能力明显地高于0~10cm土层.
引用
收藏
页码:64 / 68
页数:5
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