水土保持研究
水土保持研究
수토보지연구
RESEARCH OF SOIL AND WATER CONSERVATION
2001年
2期
74-79
,共6页
王震洪%张玲%段昌群%肖林%王克勤%梁国江%张世彪%起连春
王震洪%張玲%段昌群%肖林%王剋勤%樑國江%張世彪%起連春
왕진홍%장령%단창군%초림%왕극근%량국강%장세표%기련춘
人工林群落%群落结构%土壤侵蚀%牟定县
人工林群落%群落結構%土壤侵蝕%牟定縣
인공림군락%군락결구%토양침식%모정현
以云南松、直干桉、直干桉—黑荆三种人工林群落对象,对不同植物群落结构与土壤侵蚀的关系进行了研究。结果表明:在三种人工林群落中,直干桉—黑荆混交林群落和云南松植物群落具有较强的控制径流和土壤侵蚀的能力,直干桉人工林群落控制能力较差。在相同坡度和降雨条件下,有机质含量、乔木层盖度,树冠截留量,建群种平均材积,枯落物凋落量、水稳性团粒百分比等因子数值大,土壤侵蚀量小。乔木树种的生物学特征特性也有差异。
以雲南鬆、直榦桉、直榦桉—黑荊三種人工林群落對象,對不同植物群落結構與土壤侵蝕的關繫進行瞭研究。結果錶明:在三種人工林群落中,直榦桉—黑荊混交林群落和雲南鬆植物群落具有較彊的控製徑流和土壤侵蝕的能力,直榦桉人工林群落控製能力較差。在相同坡度和降雨條件下,有機質含量、喬木層蓋度,樹冠截留量,建群種平均材積,枯落物凋落量、水穩性糰粒百分比等因子數值大,土壤侵蝕量小。喬木樹種的生物學特徵特性也有差異。
이운남송、직간안、직간안—흑형삼충인공림군락대상,대불동식물군락결구여토양침식적관계진행료연구。결과표명:재삼충인공림군락중,직간안—흑형혼교림군락화운남송식물군락구유교강적공제경류화토양침식적능력,직간안인공림군락공제능력교차。재상동파도화강우조건하,유궤질함량、교목층개도,수관절류량,건군충평균재적,고락물조락량、수은성단립백분비등인자수치대,토양침식량소。교목수충적생물학특정특성야유차이。
Pinus yunnanesis community, Eucalyptus maidensii Acacian.mearsnii community, Eucalyptus maidesii community were used as the researching material of relationship between structure and soil erosion of different manmade forest communities based on the techniques of standard runoff plot and outdoor investigation. The results indicated that arbor layer dominance and soil organic matter content of the soil in different ecosystem were most tightlly related to the control of soil erosion with correlation coefficient,0.96,0.97, and the sequence of other structural factors second to the two factors was:canopy interception, timber volume of edificator, litter, percentage of stable-water aggregate, ratio of Si/V, stemflow listed according to correlation coefficient from great to small value. E.maidensii-A.meamsu mixed community showed better capacities of soil erosion control for the superiority of the community structures to other three communities. A.mearsii and P.yunnasensis grew the best hydrological ecological effect respectively for interception rate and stemflow.