云南农业大学学报
雲南農業大學學報
운남농업대학학보
JOURNAL OF YUNNAN AGRICULTURAL UNIVERSITY
2009年
5期
721-724
,共4页
金沙江%干热河谷区%生物固土%水土流失
金沙江%榦熱河穀區%生物固土%水土流失
금사강%간열하곡구%생물고토%수토류실
Jinsha River%dry and hot valley%biological soil reinforcement%water and soil loss
利用裂区试验设计对迪庆州金沙江干热河谷区5种不同坡度(8～15°,15～20°,20～25°,25～33°,≥33°)、9种不同植被(黑麦草、三叶草、大豆、腋花苋、苕子、仙人掌、黑沙蒿、大枣树、花椒树)条件下的土壤流失量进行了田间定量测定,综合评价不同植物在不同坡度的固土能力.结果表明:不同植被处理均能显著减少水土流失,其固土能力与坡度和植被品种有关.总的看来,9种植物的固土能力以草本植物腋花苋和三叶草最强,其它依次为麦草、苕子、黑沙蒿.仙人掌在25～33°陡坡上水土保持能力较强.
利用裂區試驗設計對迪慶州金沙江榦熱河穀區5種不同坡度(8～15°,15～20°,20～25°,25～33°,≥33°)、9種不同植被(黑麥草、三葉草、大豆、腋花莧、苕子、仙人掌、黑沙蒿、大棘樹、花椒樹)條件下的土壤流失量進行瞭田間定量測定,綜閤評價不同植物在不同坡度的固土能力.結果錶明:不同植被處理均能顯著減少水土流失,其固土能力與坡度和植被品種有關.總的看來,9種植物的固土能力以草本植物腋花莧和三葉草最彊,其它依次為麥草、苕子、黑沙蒿.仙人掌在25～33°陡坡上水土保持能力較彊.
이용렬구시험설계대적경주금사강간열하곡구5충불동파도(8～15°,15～20°,20～25°,25～33°,≥33°)、9충불동식피(흑맥초、삼협초、대두、액화현、초자、선인장、흑사호、대조수、화초수)조건하적토양류실량진행료전간정량측정,종합평개불동식물재불동파도적고토능력.결과표명:불동식피처리균능현저감소수토류실,기고토능력여파도화식피품충유관.총적간래,9충식물적고토능력이초본식물액화현화삼협초최강,기타의차위맥초、초자、흑사호.선인장재25～33°두파상수토보지능력교강.
The split plot experiment with 5 different slopes (8～15°,15～20°,20～25°,25～33°,≥33°)and 9 different plants cover(Amaranthus roxburghianus,Trifolium repnes.L,Lolium perenne,Vicia villosa,Artemisia ordosia,Opunntia dillenii,Glycine max,Ziziphus jujuba,Zanthoxylum bungeanum)was carried out to study the soil erosion in Diqing dry and hot valley of Jinsha river. The soil fixing capability of 9 different plants at different slope was studied. The results showed that, all of different plants cover treatments decreased soil and water loss remarkable. The soil fixing capability was closely related to the slope and the plant cover. On general, soil fixing capability of A. roxburghianus and clover (T. repnes L.) were the best, the secondly was ryegrass (L. perenne), V. villosa and A. ordosia, O. dillenii showed better soil stabilization at 25～33° slops.
