| Ancient oriental arborvitae group of the mausoleum of the yellow emperor is an important symbol of the the mausoleum of the yellow emperor,and important historical witness to the ancient people worship the Yellow Emperor and Chinese civilization is the precious historical and cultural heritage with high historical,cultural and scientific value. However,in recent years the growth of ancient oriental arborvitae group has been significantly declined,some trees weakened,and even death,such as the original ancient oriental arborvitae called "Dragon Angle" has died a few years ago.With the development of tourism,the impact of human factors on the environment of ancient oriental arborvitae growth is getting worse,resulting in compaction of the land in many places, poor growth conditions of arborvitae.Additionally,artificially removed litter which is under arborvitae growing environment changed arborvitae the natural growth environment,but also affected the physiological function and growth of arborvitae.Therefore, the study of human disturbance on the soil physical and chemical properties of ancient oriental arborvitae is important for the protection and rejuvenation.Experiment with different places and different age pavement of ancient oriental arborvitae for the study,to investigate transect method.Soil of different pavement and ages of ancient oriental arborvitae were investigated and carried out,used analysis of variance,regression analysis and other methods.Soil physical and chemical properties of different pavement and different ages of ancient oriental arborvitae were comprehensively evaluationed,and providing practical guidance for the protection and rejuvenation arborvitae of ancient tomb.The study concluded the following:1.The study of different pavement of ancient oriental arborvitae found:compared to non-interference,soil water of the lawn,the permeable brick and hard floors overall increased by 0.96%,3.08%,4.25% in 0-80 cm,but soil moisture of bare land overall reduced 18.54% in 0-80 cm.Soil bulk density of the lawn, the permeable brick,hard floors and bare land overall were up 10.7%,26.2%,30.3%,38.5% in 0-80 cm.Soil porosity increases from non-interference,bare land, the lawn, the permeable brick and hard floors in turn.Soil organic matter of the lawn,hard floors and bare land in 0-80 cm overall reduction were 14.34%,18.03%,6.61%,but the permeable brick in 0-80 cm overall grown 3.43%.Soil total N of the lawn,hard floors and bare land in 0-80 cm overall decreased 23.23%,1.01%,17.17%,but the permeable brick overall increased 1.01% in 0-80 cm.Soil available nitrogen of the lawn, the permeable brick,hard floors and bare land in 0-80 cm overall were up 4.77%, 101.91%, 84.74%, 65.98%.Soil total P of the lawn,the permeable brick and bare land in 0-80 cm overall decreased 34.38%,3.13%,31.25%,but hard floor overall growth of 18.75% in 0-80 cm.Soil phosphorus of the lawn overall reduced 9.82% in 0-80 cm,but the permeable brick, hard floors and bare land in 0-80 cm overall increased by 55.44%,33.33%,42.11%.Soil total K of the lawn,the permeable brick,hard floors and bare land in 0-80 cm overall decreased 12.79%, 10.08%, 0.11%,16.51 %.Soil effective K of the lawn,the permeable brick,hard floors and bare land overall were up 63.26%,159.52%,48.43%,71.42% in 0-80 cm.Soil p H of the lawn overall was up of 0.49% in 0-80 cm,but soil p H of the permeable brick,hard floors and bare land decreased overall 0.97%,0.61%,0.85% in 0-80 cm.Soil electrical conductivity of the lawn,the permeable brick,hard floors and bare land in 0- 80 cm overall increased by 1.86%, 22.02%,22.02%,49.07%.Through analysis of variance and regression analysis showed that it was significantly different for soil organic matter,total N and electrical conductivity in different woodland(P <0.05),and there is significant correlation with soil and regulation with soil depth.2.The study of different ages of ancient oriental arborvitae found:compared to non-planting arborvitae,soil water of 100 a and 3000 a overall reduced 12.29%,2.78% in 0-80 cm,but soil moisture of 1000 a and 5000 a in 0-80 cm overall increased by 8.55%,1.98%. Soil organic matter of 100 a, 1000 a, 3000 a and 5000 a overall increased 189.88%, 143.66%, 35.08%, 36.88% in the soil 0-80 cm.Total soil nitrogen of 100 a,1000a, 3000 a and 5000 a overall were up 139.58%,112.50%,27.08%,22.92% in the soil 0-80 cm.Soil available N of 100 a and 1000 a overall increased by 46.38%,106.23% in 0-80 cm,but available nitrogen of 3000 a and 5000 a overall decreased by 2.62%,3.62% in the soil 0-80 cm. Soil total phosphorus of 100 a overall reduced 15.79% in 0-80 cm,but 1000 a,3000a and 5000 a in 0-80 cm overall increased by 63.16%,136.84%,168.42%.Effective soil phosphorus of 100 a,1000a, 3000 a and 5000 a overall decreased 64.20%,42.72%,32.47%,17.28%in 0-80 cm.Total K of 100 a,1000a and 3000 a overall decreased 5.81%,5.96%,14.37% in 0-80 cm,but 5000 a in 0-80 cm overall grown up 7.18%. Available soil K of 100 a,1000a,3000 a and 5000 a overall were up 19.71%,33.41%,30.12%,64.38% in 0-80 cm.Soil p H of 100 a overall reduced 0.98% in the 0-80 cm, but 1000 a,3000a and 5000 a in 0-80 cm generally decreased 1.23%,0%,1.35%.Soil conductivity of 100 a,1000a,3000 a and 5000 a overall increased by 21.08%, 24.74 %, 48.90%, 30.45% in 0-80 cm. Through analysis of variance and regression analysis showed that it was significantly different for soil organic matter and total N in different woodland(P <0.05),and there is significant correlation with soil and regulation with soil depth. |
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