英语翻译生态化学计量学是研究生物系统能量和化学元素平衡的科学,是一种研究元素在生物地球化学循环[19]和生态过程中的计量关系及规律的综合方法[1].钾元素是植物的三要素之一,是植物

英语翻译生态化学计量学是研究生物系统能量和化学元素平衡的科学,是一种研究元素在生物地球化学循环[19]和生态过程中的计量关系及规律的综合方法[1].钾元素是植物的三要素之一,是植物
英语翻译
生态化学计量学是研究生物系统能量和化学元素平衡的科学,是一种研究元素在生物地球化学循环[19]和生态过程中的计量关系及规律的综合方法[1].钾元素是植物的三要素之一,是植物代谢过程中不可缺少的大量元素.本文为揭示钾元素在植物叶片中的化学计量特征和空间格局变化规律,运用生态化学计量学理论和方法,对中国华北37个样点进行抽样测定,分别采取样点中沙棘样本和土壤样本.用H2SO4 -H2O2对样品进行消化,通过火焰光度计(BWB XP Performance Plus,UK)测定叶片和土壤钾元素的含量,并进行分析.结果表明,中国沙棘叶片中钾的几何平均数为11.76mg g−1,主要影响因素有地理变量（包括:经度、纬度、海拔高度）、气候条件（包括：年均温、年均降雨）和土壤含钾量.其中叶片含钾量随海拔的增加而增加,随年均温的降低而增加,由于叶片钾元素来源于土壤,所以叶片含钾量与土壤钾元素显示出一致的变化趋势,随经度的下降而降低.

英语翻译生态化学计量学是研究生物系统能量和化学元素平衡的科学,是一种研究元素在生物地球化学循环[19]和生态过程中的计量关系及规律的综合方法[1].钾元素是植物的三要素之一,是植物
Ecological stoichiometry of science is the study of biological systems, energy
and chemical balance, is a study in biogeochemical cycles of elements [19], and
ecological processes in the integrated approach to metering and regulation [1].
Potassium is one of the three elements of the plant, is indispensable for a
large number of elements in the metabolic processes of plants. This article
reveals the potassium in plant leaves-chemical measurement characteristics and
spatial pattern of variation, using theories and methods of ecological
stoichiometry, on the determination of North China 37-point sampling, take
samples of hippophae rhamnoides and soil samples in the sample sites,
respectively. Sample digestion using H2SO4-H2O2, by flame photometer (BWB XP
Performance Plus, UK) determination of potassium element contents in leaves and
soil, and analyzed. Results showed that of the geometric mean in leaves of
Chinese seabuckthorn and potassium 11.76mg g − 1, the main factors affecting
geographic variables (including latitude, longitude, altitude), climatic
conditions (including: average annual temperature, with an average annual
rainfall) and soil potassium content. Potassium content in leaves of which
increase with altitude increase, with an average annual temperature of decreases
and increases, due to leaves of potassium from soil, soil potassium and
potassium content in leaves show a consistent trend, with longitude decline and
lower