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Experimental Research on the mass Movement in the Soil-Plant Systems

土壤-植物系统质量运动的实验研究

基本信息

批准号：
05660273
负责人：
OTSUKI Kyoichi
金额：
$ 1.41万
依托单位：
Tottori University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1993
资助国家：
日本
起止时间：
1993 至 1994
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05660273/
关键词：
SPAC mass movement soil water salt remote sensing energy budget irrigation spectral reflectance 塩ストレス潅漑水移動塩移動蒸発塩類集積礫層

项目摘要

(1) Independent Evaluation of Plant Cover and Plant Vigor by Remote SensingThe method to evaluate plant cover ratio and plant vigor of turf independently was elaborated and verified it's applicability in the sorgo field.(2) Evaluation of the Stress on Turf by Remote SensingThe relationship between the physiological changes of turf by the stresses of water & salt and spectral reflectance was clarified. Introducing the equation to estimate chlorophy1 and water content in leaf of turf as a function of spectral reflectance raate, the method to diagnose the stress damage was elaborated.(3) Variation of Energy Budget with the increment of the Fetch of Sorgo FieldEnergy budget measurements were conducted along the dominant wind direction in the sorgo field. It was observed that the energy budget had varied with the increment of the fetch, but it had adapted to the new surface around 40-70 meters.(4) Movement of water, salt and heat through the soil with gravel layrMovement of water, salt and heat through the homogenous sand column and the one with gravel layr were qualified by the experiment.(5) Studies on the Drip Irrigation Water Requirement based on Climate-Soil ComditionPotential evapotranspiration, irrigation water requirement, soil water movement and production were measured in the cabbage field under drip irrigation and the optimal irrigation water requirement was discussed.(6) Studies on the soil water movement in the soil-plant systemsMicro climate and soil physical properties were measured at the alfalfa field in the California Peninsula in Mexico and the soil water movement process was analyzed.

(1)植物覆盖率和植物活力遥感独立评价阐述了独立评价草坪覆盖率和植物活力的方法，并验证了其在苜蓿田中的适用性。(2)遥感草坪胁迫评价阐明了水、盐胁迫引起的草坪生理变化与光谱反射率之间的关系。引入草皮叶绿素和水分含量随光谱反射率变化的估算方程，详细阐述了胁迫损伤的诊断方法。(3)能量收支随索尔戈场取值增加的变化沿索尔戈场的主导风向进行了能量收支测量。观察到能量收支随取水量的增加而变化，但已经适应了40-70米左右的新地表。(4)含砾石层土壤中水、盐和热的运动通过实验验证了均质砂柱和含砾石层土壤中水、盐和热的运动。(5)基于气候-土壤条件潜力的滴灌需水量研究测量了滴灌甘蓝田的蒸散量、灌溉需水量、土壤水分运动和产量，并探讨了最佳灌溉需水量。(6)土壤-植物系统土壤水分运动研究在墨西哥加利福尼亚半岛的苜蓿田测量了微气候和土壤物理性质，分析了土壤水分运动过程。