防护林科技
防護林科技
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PROTECTION FOREST SCIENCE AND TECHNOLOGY
2015年
8期
4-6,12
,共4页
曾加芹%田兴军%刘杨军%池瞻仲
曾加芹%田興軍%劉楊軍%池瞻仲
증가근%전흥군%류양군%지첨중
砂生槐%水土保持%植株持水量%土壤理化性质
砂生槐%水土保持%植株持水量%土壤理化性質
사생괴%수토보지%식주지수량%토양이화성질
Sophora moorcroftiana%water and soil conservation%moisture holding capacity of plant%physical &chemical properties of soil
通过对雅江下游砂生槐水土保持功能进行的试验研究,结果表明:砂生槐的枝叶及枯落物可截留和吸收大量降雨,减小雨水对土壤的侵蚀,植被覆盖度越大,效果越明显;枯落物及根系的活动明显地改善土壤理化学性质,降低土壤容重,增加土壤孔隙度,提高土壤保水和透气能力等。砂生槐枝叶茂盛,根系发达,可作为保水保土、退耕还林还草的树种大面积推广。
通過對雅江下遊砂生槐水土保持功能進行的試驗研究,結果錶明:砂生槐的枝葉及枯落物可截留和吸收大量降雨,減小雨水對土壤的侵蝕,植被覆蓋度越大,效果越明顯;枯落物及根繫的活動明顯地改善土壤理化學性質,降低土壤容重,增加土壤孔隙度,提高土壤保水和透氣能力等。砂生槐枝葉茂盛,根繫髮達,可作為保水保土、退耕還林還草的樹種大麵積推廣。
통과대아강하유사생괴수토보지공능진행적시험연구,결과표명:사생괴적지협급고락물가절류화흡수대량강우,감소우수대토양적침식,식피복개도월대,효과월명현;고락물급근계적활동명현지개선토양이화학성질,강저토양용중,증가토양공극도,제고토양보수화투기능력등。사생괴지협무성,근계발체,가작위보수보토、퇴경환림환초적수충대면적추엄。
The function of water and soil conservation of Sophora moorcroftiana in the downstream of the Brahma-putra River was studied.Result shows that the branches,leaves & litter of Sophora moorcroftiana can intercept and absorb the heavy rainfalls and reduce the soil erosion caused by rainwater.The more vegetation coverage have, the more obvious effects show.The litter & root activities of Sophora moorcroftiana significantly improve the physical & chemical properties of soil,decrease the soil bulk density,increase the soil porosity and enhance the soil capacity of water retention and permeability.Sophora moorcroftiana can be widely generalized as a tree species of preserving soil and water and returning cropland to forestry and grass due to its flourishing branches and leaves and developed root.