1) Soil element heterogeneity
土壤元素异质性
2) Elements and their bio availabilities
土壤元素及有效性分异
4) soil mineral elements
土壤矿质元素
1.
At the South Edge of the Tengger Desert, the sampled sites of mobile sanddune, semi-fixed sanddune and fixed sanddune were selected as the different stages of the reversion process of desertification with the method of substituting time with space, and topsoil mineral elements of the decertified land were studied in reversion process of desertification.
以腾格里沙漠南缘沙漠化土地为研究对象,应用时空替代法选择流动沙丘、半固定沙丘、固定沙丘的沙漠化逆转序列样地,研究了沙漠化逆转过程土壤矿质元素的变化特征。
5) soil spatial heterogeneity
土壤空间异质性
1.
To express effectively the soil spatial heterogeneity in a karst zone,we chosed the proportion of rock area on overland and the rock area s spatial distribution and the depth of soil and its spatial distribution as research facts.
讨论了岩溶坡地土壤空间异质性的表述与调查方法,选取了地表石质土地面积比例及空间分布和土壤厚度及空间分布两个方面作为土壤空间异质性的表述内容,引入了地块破碎度、离散度、变异函数等指标;以王家寨为例,研究发现岩溶坡地土石比、破碎度、离散度、土壤厚度等指标从坡顶到坡下逐渐增大;石质地块破碎度在微观地块上表现为值越大地块越完整,是否与研究尺度有关还需要进一步论证;土壤厚度变异系数基本在1~1。
6) heterogeneous soil water
异质性土壤水分
1.
To investigate the phenotypic plasticity in response to theheterogeneous soil water supply, ramet pairs of the species were subjected to heterogeneous watersupply by which either mother ramets or daughter ramets were in high or low soil water supply, respectively,in the Maowusu (Mu Us) Sandy Land of Nei Mongol.
为了探讨拂子茅在异质性水分环境中的表型差异,在内蒙古鄂尔多斯高原的毛乌素沙地对拂子茅由母株、子株组成的分株对给予了高水、低水两种不同的异质性土壤水分处理。
补充资料：卵巢混合性生殖细胞-性索间质性肿瘤
卵巢混合性生殖细胞-性索间质性肿瘤
本瘤1921年首次由Masson描述，直到1972年由Telerman首次命名为本瘤，并沿用至今，本瘤病因尚不明了。发生年龄自新生儿到67岁妇女均可发生，少数为男性。临床表现：患者为正常女性及男性外表，女性病人可有下腹包块，发生蒂扭转时有下腹痛，并有急腹症症状，可有内分泌紊乱，性早熟表现，男性有睾丸增大。染色体核型分析均正常。内分泌检查与临床表现符合，肿瘤为单侧，圆形或卵圆形。表面光滑，直径2.5～30cm，实性肿瘤内有囊性区。切面灰白、灰红或淡黄至淡褐色。镜下有梭形细胞及生殖细胞。治疗：视情况采取单纯手术，或手术加放疗及化疗。需长期随访。预后：单纯本病者良好。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条