东北林业大学学报
東北林業大學學報
동북임업대학학보
JOURNAL OF NORTHEAST FORESTRY UNIVERSITY
2015年
5期
102-104
,共3页
土壤含水率%章古台%科尔沁沙地%赤松%油松%樟子松
土壤含水率%章古檯%科爾沁沙地%赤鬆%油鬆%樟子鬆
토양함수솔%장고태%과이심사지%적송%유송%장자송
Soil moisture content%Zhanggutai%Keerqin sandy land%Pinus densiflora%Pinus tabulaeformis%Pinus sylvestiris var.mongoliea
以科尔沁沙地东南缘章古台地区的樟子松、油松、赤松等3种主要固沙林为研究对象,连续4a实测了0~300 cm土层在主要生长季的土壤含水率。结果表明:不同类型固沙林土壤含水率的空间异质性明显,30 cm以上表层土壤含水率均比较高,深层土壤含水率均明显降低;赤松林地50~200 cm土层、油松林地150~300 cm土层、樟子松林地30~150 cm土层土壤含水率在生长季下降明显,而无木本植被的沙丘(对照)在0~300 cm土层的土壤含水率基本没有变化。
以科爾沁沙地東南緣章古檯地區的樟子鬆、油鬆、赤鬆等3種主要固沙林為研究對象,連續4a實測瞭0~300 cm土層在主要生長季的土壤含水率。結果錶明:不同類型固沙林土壤含水率的空間異質性明顯,30 cm以上錶層土壤含水率均比較高,深層土壤含水率均明顯降低;赤鬆林地50~200 cm土層、油鬆林地150~300 cm土層、樟子鬆林地30~150 cm土層土壤含水率在生長季下降明顯,而無木本植被的沙丘(對照)在0~300 cm土層的土壤含水率基本沒有變化。
이과이심사지동남연장고태지구적장자송、유송、적송등3충주요고사림위연구대상,련속4a실측료0~300 cm토층재주요생장계적토양함수솔。결과표명:불동류형고사림토양함수솔적공간이질성명현,30 cm이상표층토양함수솔균비교고,심층토양함수솔균명현강저;적송임지50~200 cm토층、유송임지150~300 cm토층、장자송임지30~150 cm토층토양함수솔재생장계하강명현,이무목본식피적사구(대조)재0~300 cm토층적토양함수솔기본몰유변화。
We measured the soil moisture content in the 0-300 cm soil layer of three types of sand fixing vegetations , Pinus syl-vestiris var.mongoliea, Pinus tablu aeformsi and Pinus densiflora of Zhanggutai region in the southeast edge of Keerqin sandy landwere during the main growing season for four consecutive years .The soil moisture content in the 0-100 cm soil layer in all types of sand-fixation forests were higher than that in bare sand dunes (check), and soil moisture content in 200-300cm layer was significantly lower than that in the bare sand dunes .The spatial heterogeneity of soil moisture con-tent of different types of sand fixation forests was obvious .soil moisture content in 0-30 cm layer was higher, soil moisture content decreased in any other layers significantly , soil moisture content in Pinus densiflora forest land in 50-200 cm soil layer decreased obviously , soil moisture content in 150-300 cm soil layers in Pinus tabulaeformis decreased significantly , and soil moisture content in 30-150 cm soil layer in the Pinus ylvestiris var.mongoliea forests decreased significantly .The soil moisture content of bare sand dunes in the soil layer of 0-300 cm changed little .