防护林科技
防護林科技
방호림과기
PROTECTION FOREST SCIENCE AND TECHNOLOGY
2012年
5期
50-52
,共3页
刘永萍%鲁天平%史征%田云峰
劉永萍%魯天平%史徵%田雲峰
류영평%로천평%사정%전운봉
深沟秸秆覆盖%造林地%土壤蓄水能力%土壤含水量%土壤蒸腾强度
深溝秸稈覆蓋%造林地%土壤蓄水能力%土壤含水量%土壤蒸騰彊度
심구갈간복개%조임지%토양축수능력%토양함수량%토양증등강도
straw mulching in deep groove%afforestation land%soil water storage ability%soil water content%transpiration intensity of soil
对造林地进行深沟秸秆覆盖,可降低土壤蒸发量,增加土壤蓄水空间和能力,提高降水的利用率,是缓解干旱半干旱地区造林水分匮乏的有效措施。在位于干旱区的塔城盆地老风口生态区,进行了造林地深沟覆盖秸秆的试验研究,结果表明,秸秆覆盖条件比未覆盖的土壤蒸发量明显降低,含水率显著增高,随着深沟加深和覆盖厚度的增加,抑制土壤蒸发、蓄水保墒的效果越显著。
對造林地進行深溝秸稈覆蓋,可降低土壤蒸髮量,增加土壤蓄水空間和能力,提高降水的利用率,是緩解榦旱半榦旱地區造林水分匱乏的有效措施。在位于榦旱區的塔城盆地老風口生態區,進行瞭造林地深溝覆蓋秸稈的試驗研究,結果錶明,秸稈覆蓋條件比未覆蓋的土壤蒸髮量明顯降低,含水率顯著增高,隨著深溝加深和覆蓋厚度的增加,抑製土壤蒸髮、蓄水保墑的效果越顯著。
대조임지진행심구갈간복개,가강저토양증발량,증가토양축수공간화능력,제고강수적이용솔,시완해간한반간한지구조림수분궤핍적유효조시。재위우간한구적탑성분지로풍구생태구,진행료조임지심구복개갈간적시험연구,결과표명,갈간복개조건비미복개적토양증발량명현강저,함수솔현저증고,수착심구가심화복개후도적증가,억제토양증발、축수보상적효과월현저。
Straw mulching in deep groove on afforestation land which should reduce soil evaporation and increase storage space & capacity soil water and improve the utilization of precipitation, is effective measure to alleviate arid and semiarid afforestation regions for the lack of water. The experiments of straw mulching in deep groove on afforestation land were conducted in the arid Laofengkou ecological zones of Tacheng Basin. Result shows that : soil evaporation of the land with straw mulching is significantly lower than that with non-covered, water content was significantly higher than that without straw mulching;effect of inhibition of soil evaporation & soil and water conservation are more significant with the deepening of deep groove and increase of cover thickness.