共被期刊论文引用了2次
您的检索式：您选中1篇文献正在查看引证文献汇总
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Effects of moisture and carbonate additions on CO_2 emission from calcareous soil during closed–jar incubation显示文摘Calcareous soil contains organic and inorganic carbon(C) pools,which both contribute to CO2 emission during closed-jar incubation. The mineralization of organic C and dissolution of inorganic C are both related to soil moisture,but the exact effect of water content on CO2 emission from calcareous soil is unclear. The objective of this experiment was to determine the effect of soil water content(air-dried,30%,70%,and 100% water-holding capacity(WHC)),carbonate type(CaCO3 or MgCO3),and carbonate amount(0.0,1.0%,and 2.0%) on CO2 emission from calcareous soil during closed-jar incubation. Soil CO2 emission increased significantly as the water content increased to 70% WHC,regardless of whether or not the soil was amended with carbonates. Soil CO2 emission remained the same or increased slowly as the soil water content increased from 70% WHC to 100% WHC. When the water content was ≤30% WHC,soil CO2 emission from soil amended with 1.0% inorganic C was greater than that from unamended soil. When the soil water content was 70% or 100% WHC,CO2 emission from CaCO3 amended soil was greater than that from the control. Furthermore,CO2 emission from soil amended with 2.0% CaCO3 was greater than that from soil amended with 1.0% CaCO3. Soil CO2 emission was higher in the MgCO3 amended soil than from the unamended soil. Soil CO2 emission decreased as the MgCO3 content increased. Cumulative CO2 emission was 3-6 times higher from MgCO3 amended soil than from CaCO3 amended soil. There was significant interaction effect between soil moisture and carbonates on CO2 emission. Soil moisture plays an important role in CO2 emission from calcareous soil because it affects both biotic and abiotic processes during the closed-jar incubation. | YanJie DONG Miao CAI JianBin ZHOU | 2014 | Journal of Arid Land2014，6，1： | 4 |
| 2 | 城市园林绿地土壤CO_2排放通量的研究显示文摘采用静态箱—红外分析仪法测定了西南大学8块典型园林绿地的土壤CO2排放通量,8块研究点的植被分别为:结缕草(G1)、金叶女贞(G2)、结缕草(G3)、结缕草(G4)、麦冬(G5)、结缕草(G6)、三叶草(G7)、竹林(G8).结果表明:G1-G8的土壤CO2排放通量均呈明显的季节变化,夏季最大,春秋季次之,冬季最小;在累积监测355d的时间内,G6的累积排放量最高,为11 116kg/hm2,G2的累积排放量最低,为3 853kg/hm2;G3,G7和G8的CO2排放通量与土壤含水率呈显著相关(p<0.05),而其他绿地中则无明显关系;CO2排放通量与5cm土温(T5)的相关性均达到极显著水平(p<0.01),可解释CO2排放通量变化的70.0%~86.2%,G1-G8的温度敏感性(Q10)在1.94~2.53之间;生长年限对CO2排放量的大小影响不显著. | 高洁 董辰 李永伟 姚敬 木志坚 | 2014 | 西南大学学报(自然科学版)2014，36，3： | 2 |
您所在的机构暂未开通此部分的功能，请联系管理员