土壤是农业生产的基础，是人类最基本的生产资料和劳动对象，也是人类世代相传的生存条件和生产条件，是我们的生命线。本文在总结湖南省土壤资源利用现状的基础上，分析湖南省土壤资源的特点，土壤资源开发利用中存在的问题以及针对这些问题提出解决措施。土壤资源问题是关系到我们国家改革发展以及子孙后代生存的大事，党和政府应予以高度重视，所以实施对土壤资源的可持续利用非常必要。Hunan soil resource and use protection countermeasure The soil is the agricultural production foundation， is the humanity most basic producer goods and the object of labor， is also the survival requirement which and the working condition the humanity passes on from generation to generation， is our This article in summarizes in the Hunan Province soil resource use present situation foundation， analyzes the Hunan Province soil resource the characteristic， the question which as well as in the soil resource development use exists proposes the solution measure in view of these The soil resource question is relates the important matter which our country reform development as well as the posterity survives， the party and the government should give to take seriously， therefore the implementation is essential to soil resource's sustainable 土壤资源， Soil resource 土壤利用，soil use 土壤污染，soil pollution 土壤保护，soil protection 可持续发展sustainable development
At noon tomorrow to translate ~ translated additional 50 thank you ~ ~Soil grain grade composition of soil physical and chemical properties of influence， this is the method of using BiChongJi southwest area into several rock soil (purple soil， lime soil， volcanic dust) grain Some conclusions:Southwest area into rock (soil， lime， purple soil and volcanic dust particles in the sand， which accounts for more than viscous grain powder， small 2 the same soil layer， due to the different leaching deposition etc， on the effect of soil layer of grain composition class there are differences of sand soil， black limestone and clay content with the increase of depth and And the sand and volcanic ashes viscous grain content decreased with 3 the soil due to different locations eluviation weathering， the influence of human activity and the degree of different level， the soil grain composition there is some 4 different soil layer， due to the different soil of rock， soil contains sand development of sandstone and mudstone limestone， development of viscous grain 5 the same soil types， different sub-types of soil particle composition is different， but the trend is Keywords: rock into the soil， The soil profile， Grain grade， Determination必须选我的哈～ 加油！ 挺你啊～BY：静
The soil grade composition is affecting the soil physics and chemistry nature， this article is uses the hydrometer method becomes the soil to southwest area several kind of crags (purple ochre， calcareous soil， volcanic ash soil) the grade to carry on the determination Draws the following conclusion: ⑴The southwest area crag becomes the earth， purple ochre， the calcareous soil and volcanic ash soil's pellet sand grains account for the proportion to be big， the clay， the silt account for the proportion to be ⑵Between identical soil different soil layer， as a result of function and so on leaching deposition influences， on the soil lower level grade composition existence certain difference， rendzina's sand grains and the clay content increases along with the depth But volcanic ash soil's sand grains and the clay content increase along with the depth ⑶Because the different place identical soil the weathering， the leaching function and human activity's influence is different， soil separates composition existence certain ⑷Different soil identical soil layer， because becomes the earth the rock to be different， sandstone growth soil sandy many， the limestone， the mudstone growth's rock clay are ⑸The identical soil type different subgroup's soil， the granulometric composition is also different， but the general trend is
