农田生态系统健康,farmland ecosystem health
1)farmland ecosystem health农田生态系统健康
1.Discussion on indicator system offarmland ecosystem health assessment;农田生态系统健康评价指标体系的探讨
英文短句/例句
1.Discussion on Farmland Ecosystem Health Assessment Method on Village Scale of Mountain-foot Plain of North China;华北山前平原村级农田生态系统健康评价方法探讨
2.The Health Assessment of the Agro-ecosystem in Weihai City of Shandong Province;山东省威海市农业生态系统健康评价
3.The Ecosystem Health Evaluation of the Agriculture in the North Bank of Yili Valley伊犁河谷北岸农业生态系统健康评价
4.Framework Establishment of Ecosystem Health Assessment in Middle Reaches of Hotan River Watershed,Xinjiang和田河流域中游生态系统健康评价的框架构建
5.Exploration on the basic connotation and evaluation system of rural ecosystem health农村生态系统健康的基本内涵及评价体系探索
6.The Research on the Service Functions and Health of Agricultural Ecosystem in Baicheng Area;白城地区农业生态系统的服务功能与健康研究
7.Health assessment of natural rubber industry ecosystem in Hainan farm;海南农垦天然橡胶产业生态系统健康评价研究
8.Assessment Method of Agroecosystem Health of Based on Pressure-State-Response Model;基于压力-状态-响应模型的农业生态系统健康评价方法
9.STUDY OF ECO-ECONOMIC HEALTH EVALUATION FOR AGRO-FORESTRY ECOSYSTEM OF COUNTY TERRITORY IN LATERITE ROLLING REGION红壤丘陵区县域农林复合生态经济系统健康评价
10.University Student Ecology Psychologically Healthy Education System Research;大学生生态心理健康教育的系统研究
11.The Evaluation and Analysis on Agro-ecosystem Productivity Stability;区域农田生态系统生产力稳定性评价
12.Study on the Ecosystem Health Assessment Based on GIS&RS基于RS与GIS的生态系统健康评价研究
13.Assessment and analysis of wetland ecosystem health in Dongting Lake洞庭湖区湿地生态系统健康综合评价
14.Assessment of ecosystem health for typical estuary in Haihe River Basin海河流域典型河口生态系统健康评价
15.Health Evaluation of the Eco-economic System In Xiangbizui Small Watershed象鼻嘴小流域生态经济系统健康评价
16.Structure and function of Luonan county field agro-ecosystem洛南县农田生态系统结构、功能分析
17.A Primary Study on Mercury in Soil of Different Agricultural Ecosystems;不同农田生态系统土壤汞的初步研究
18.N_2O Emission from Agricultural Ecosystem in Middle-Lower Reaches of the Yangtze River Region长江中下游地区农田生态系统N_2O排放
相关短句/例句
Agroecosystem health农业生态系统健康
1.Agroecosystem health is the comprehensive characteristics of agroecosystems,it can he assessed through the measurements of vigor,stability and self-organization and is a very important guarantee for realizing the construction goal of eco-agricuhure.农业生态系统健康是农业生态系统的综合特征,它具有活力、稳定和自调节能力,是实现生态农业建设目标的重要保障。
2.Agroecosystem health refers to the state of an agroecosystem where it is free from "distress syndrome" and to cope with stress, or capability to produce agricultural products in a sustainable way.农业生态系统健康是指农业生态系统免受发生“失调综合症”、处理胁迫的状态和满足持续生产农产品的能力 。
3.In this paper, the recent research achievements about agroecosystem health were introduced, including the emergence and development of the concept of agroecosystem health, the stresses endangering agroecosystem health , the methods and index assessing agroecosystem health, etc.本文从农业生态系统健康学说的形成与发展、危及农业生态系统健康的胁迫因子、农业生态系统健康的评价方法和指标等几个方面综述了农业生态系统健康学的研究概况。
3)Rural ecosystem health农村生态系统健康
4)ecosystem health生态系统健康
1.Review of research onecosystem health in riverine phreatic zones;河流潜流带的生态系统健康研究进展
2.Indicators and evaluation ofecosystem health of typical rivers in Shenzhen City;深圳典型河流生态系统健康指标及评价
3.A kind of method and its application for urbanecosystem health assessment;一种城市生态系统健康评价方法及其应用
5)health of ecosystem生态系统健康
1.Based on the connotation ofhealth of ecosystem in mining areas and the evaluating indicator system,this paper puts forward the evaluation method of ecosystem health trend in mining areas.根据矿区生态系统健康内涵,建立了评价指标体系,提出了矿区生态系统健康趋势评价方法。
6)Health-Ecosystem健康生态系统
延伸阅读
农田生态系统养分循环农田生态系统养分循环sulfur cycling in agricultural land气态祖失大气沉阵!【l化学记料生物固氮土城物提供N15~22.5千克/公顷。此外，水稻土中的蓝雄也有一定的固氮能力，固氮t在22.5~30千克/公顷.稻田放养绿萍，也是氮家来像之一。雨水带入土坡的养分，主要是氮和硫，而碑、钾含量一般很低(表1).数据表明.由雨水带入农地的氮大约是15~22.5千克/(公顷·年)，硫为15~30千克/(公顷·年).琳失表1中国南方降雨中的养分含贡[kg/(hmZ·yaer)〕 地区年降雨t(mm)NPKS浙江金华有机尼料1 321~1 66311闽北IlJ区551~1 647作物 肉t劝物(次级梢费者) 草食动物(初级消费者) 18~241 .2~2.250 .6~0。913。5~27。03.75~10.5.015~0.04 2.1~4.819.5~28.5 云南内陆947~1 0754 .5~13.50。033 .75~4.50l乓0~22.5农田生态系统域工掀 农田生态系统中的养分循环期.并如此周而复始地不断进行下去.农田生态系统的养分循环与天然存在的生态系统的养分循环的不同之点在于前者产品有相当大的部分为人类(包括动物)消费，而天然生态系统的生物产品绝大部分都回归土城。所以，农田生态系统每经过一次循环周期，必然有相当数t的养分脱离系统而报失。农田土峨养分平衡基本类型有3种类型，即养分盈余型、养分亏缺型和养分平衡型.养分盈余型的特点是，土城养分有所积象.在大多数情况下，表现为土城养分供应能力的提高，养分亏缺型的特点是，土城养分不断被作物消耗，如不采取相应措施，最终将导致土族养分的耗场;养分平衡型的特点是，土城养分含t荃本不变.但旅肥引入的养分，其有效性较商，因而有效养分可能有所常加.土城养分是否平衡，主要取决于土集养分的获得和土城养分的支出状况.土味养今的收入主要有施入的肥料，包括有机肥料和化学肥料，生物固氮，即豆科作物和某些徽生物固定的扳素，以及由降水等干湿沉降物带入土城的养分。土城养分最主要的收入是肥料.其中有机肥料中的养分属于养分再循环。
