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Position: Home > Articles > A Preliminary Report of Study on Soil Anti-erodibility of Mixture-planted Forest in Semiarid Loess Hilly Gully Region Bulletin of Soil and Water Conservation 1990 (5) 5-9

半干旱黄土丘陵沟壑区人工混交林土壤抗蚀性研究初报

作者：

余清珠;师明洲

单位：

西北林学院

关键词：

半干旱黄土丘陵沟壑区;人工混交林和纯林;土壤抗蚀性指标

摘要：

半干旱黄土丘陵沟壑区,在同一条件下,0～100cm土层内,有机质和水稳性团粒抗蚀性指标,混交林较纯林分别高38%和23%;分散率和分散系数抗蚀性指标,混交构较纯林分别低3.5%和3.9%。经差异显著性检验,有机质和水稳性团粒抗蚀性指标,以99%概率保证,差异极显著,分散率和分散系数抗蚀指标,以95%概率保证,差异显著。但分层指标不规律。

译名：

A Preliminary Report of Study on Soil Anti-erodibility of Mixture-planted Forest in Semiarid Loess Hilly Gully Region

作者：

Yu Qingzhu (Department of Soil and Water Conservation of Northwestern College of Forestry) Shi Mingzhou (Tianshui Soil and Water Conservation Science Test Station of Yellow River Water Conservancy Committee)

关键词：

semiarid loess hilly gully region mixture-planted forest and pure-planted forest soil anti-erodibility indices

摘要：

This paper studies main'y soil anti-erodibility indices of mixture-planted and pure-planted forest. Results show that soil organic material and waLer stable aggregate contents of mixed forest are greater than those of pure forest by 38% and 23% respectively, rate and coefficient of soil dispersion of mixed forest are less than those of pure forest by3.5% and 3.9% respectively in 0-100 cm soil layers under the same condition. The difference of organic material and water stable aggregate contents between mixed and pure forest-land is extremely significant. The difference of rate and coefficient of dispersion between mixed and pure forest-land is significant,but the indices of various soil layers is irregular.

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半干旱黄土丘陵沟壑区人工混交林土壤抗蚀性研究初报

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